Water when you need it!

Transcription

1 Water when you need it! AVK Belgium n.v.

2 It s all about constraining fire with water! Safety comes first don t compromise on the quality. AVK ensures a reliable water supply. We offer quality products with long life that operate faultless even after a long period of standstill. When every second counts you can count on valves and hydrants from AVK. 2 Valves and hydrants for fire protection

3 Hydrant with pumper connection: head loss = max bar, when flow = 3785 L/min 30 Valves and hydrants for fire protection Weathershield note: open left shown. Technical appendix Flanges: Gate valves according to DIN - raised face, PN 10/ M27 M33 Technical appendix Flanges: Gate valves accoring to AWWA C509, flat face ANSI B16.42, class 150 Dh ds Number D mm df dr mm of holes Bolt size DN mm cl. 125/150 mm mm cl. 125/150 cl. 125/150 cl. 125/ , M , M , M , M ,4 3 22,2 8 M ,5 3 22,2 8 M ,2 3 25,4 12 M ,8 4 25,4 12 M ,1 4 28,6 12 M ,6 4 28,6 16 M27 Stop nut resting against internal lubrication reservoir in the nozzle section. EN 1092 / ISO , M , M , M33 DN ds DN ds df dr df dr Dt Dt Dh D Dh D Valves and hydrants for fire protection 31 Complete assortment for fire protection Index Dry barrel hydrants series Post indicators and gate valves for post indicators Air valve for rapid filling and draining Gate valves for sprinkler systems Technical appendix Series 27 - flow/pressure loss/operation The AVK dry barrel hydrant meets or exceeds the requirements of FM 1510 and UL 246. Hydrant, bury depth of 1.5 meters to bottom of pipe: head loss = max bar per hose connection flow = min. 946 L/min per hose connection OPERATION AND MAINTENANCE The AVK modern hydrant is designed to be an easily operated, low torque, high flow fire hydrant. The thrust bearing hydrant requires a minimum of torque to operate. It is possible to damage the hydrant by forcing it beyond its limits of travel with excess torque; therefore: 1. Check direction of opening as marked on the hydrant weathershield. 2. To open, turn the operating nut in the opening direction, indicated by an arrow on the weathershield, until the main valve, is fully open (approximately 19 to 21 turns). The stop nut, should prevent the hydrant from opening beyond the fully open position. Do not force the hydrant in the opening direction beyond full open as indicated by sudden resistance to turning. If water does not flow when the hydrant is open, it is probably due to a closed valve upstream from the hydrant. 3. To close, turn the operating nut until the main valve stops off the flow. It is not necessary to close this type of hydrant with great force. Once the flow has stopped, loosen the operating nut in the opening direction, 1/2 to 1 turn to take the strain off the operating parts of the hydrant and to make it easier to open the hydrant. Dh ds Number D Dt mm df dr mm of holes Bolt size DN mm mm PN 10 PN 16 mm mm PN 10 PN 16 PN 10 PN 16 PN 10 PN M M M M M M M20 M M20 M M20 M M20 M M24 M M24 M M24 M30 Technical appendix Valves and hydrants for fire protection 3

4 supervision of: Lead Auditor Bizonvej 1, DK-8464 Galten, Denmark Locations included in the certification will appear in the appendix. SYSTEM Reg.nr Lack of fulfilment of conditions as set out in the Certification Agreement may render this certificate invalid. Smedeskovvej 40, DK-8464 Galten, Denmark has been found to conform to the safety management system standard: ACCREDITED UNIT: DET NORSKE VERITAS,BUSINESS ASSURANCE,DANMARK A/S, TUBORG PARKVEJ 8,2.,DK-2900, HELLERUP,DANMARK,TEL: , and Danish occupational health and safety regulation no. 87 dated 31 th of January 2005 This certificate is valid for the following product or service ranges: Design and production of valves and valve accessories. Marketing and sales of valves and Lead Auditor Locations included in the certification will appear in the appendix. SYSTEM Reg.nr Lack of fulfilment of conditions as set out in the Certification Agreement may render this certificate invalid. Place and date: ACCREDITED UNIT: DET NORSKE VERITAS,BUSINESS ASSURANCE,DANMARK A/S, TUBORG PARKVEJ 8,2.,DK-2900, HELLERUP,DANMARK,TEL: , supervision of: Lead Auditor has been found to conform to the management system standard: SYSTEM Reg.nr Place and date: ACCREDITED UNIT: DET NORSKE VERITAS,BUSINESS ASSURANCE,DANMARK A/S, TUBORG PARKVEJ 8,2.,DK-2900, HELLERUP,DANMARK,TEL: , Excellence in quality throughout the process DNV BUSINESS ASSURANCE MANAGEMENT SYSTEM CERTIFICATE DNV BUSINESS ASSURANCE MANAGEMENT SYSTEM CERTIFICATE Certificate No AE-DEN-DANAK Certificate No AQ-DEN-DANAK This is to certify that This is to certify that AVK International A/S AVK International A/S Bizonvej 1, DK-8464 Galten, Denmark has been found to conform to the management system standard: DS/EN ISO 9001:2008 DS/EN ISO 14001:2004 This certificate is valid for the following product or service ranges: This certificate is valid for the following product or service ranges: Production of valves and valve accessories. Marketing and sales of valves and valve accessories Production of valves and valve accessories. Marketing and sales of valves and valve accessories Locations included in the certification will appear in the appendix. DNV BUSINESS ASSURANCE This certificate is valid until: MANAGEMENT SYSTEM CERTIFICATE The audit has been performed under the Certificate No AHSO-DEN-DANAK DANAK Place and date: Hellerup, DET NORSKE VERITAS, BUSINESS ASSURANCE, DANMARK A/S This certificate is valid until: The audit has been performed under the DANAK Hellerup, DET NORSKE VERITAS, BUSINESS ASSURANCE, DANMARK A/S Jens Østergaard Lars Appel Managing Director Jens Østergaard Lars Appel This is to certify that Managing Director AVK International A/S Lack of fulfilment of conditions as set out in the Certification Agreement may render this certificate invalid. DS/OHSAS 18001:2008 valve accessories This certificate is valid until: The audit has been performed under the supervision of: DANAK Hellerup, DET NORSKE VERITAS, BUSINESS ASSURANCE, DANMARK A/S Jens Østergaard Lars Appel Managing Director From design to finished product AVK s high design quality is based on thorough research of the customers needs. AVK products are manufactured in modern factories using high technology, computerised machining centres and robots to ensure precision and uniformity. The overall framework for quality from development to distribution is our extensive quality assurance system certified to ISO Optimum corrosion protection for maximum durability AVK products meet GSK requirements and conform to other international standards of effective corrosion protection. By virtue of our GSK membership (Gütegemeinschaft Schwerer Korrosionsschutz), our entire coating process complies with RAL-GZ 662 guidelines and is being monitored and approved twice a year by MPA-Hannover (Materialprüfanstalt), an independent testing institute. The step-by-step process with automatical monitoring of time, temperatures, coating thickness etc. ensures that each individual step is optimised to enhance the durability of the coating. 4 Valves and hydrants for fire protection

5 AVK builds long life and good economy into your fire protection systems Under control fire is invaluable, but out of control it can be devastating. Firemen risk their lives to extinguish fires. They rely fully on their equipment to function perfectly when needed. Therefore, it is crucial that the products installed are highly reliable, are easy to maintain and last a lifetime. AVK is a leading supplier of high quality hydrants and valves for fire protection and sprinkler systems. Our unique design and wide product range is based on the needs of customers worldwide. We offer a wide range of valves and hydrants which, along with a series of accessories, build the optimum solution. The complete fire protection package complies with international standards and consists of hydrants, NRS post indicator valves, handwheel operated OS&Y gate valves, post and wall indicators all UL/ ULC listed and FM approved. Furthermore, AVK holds VDS approval for NRS handwheel operated gate valves. Valves and hydrants for fire protection 5

6 Dry barrel fire hydrants Dry barrel fire hydrants are primarily designed for areas with frost, where the water main is located below ground frost zone. The series 27 dry barrel hydrant has two drain outlets located just above the water main level. The main valve disc is designed with the purpose of flushing the drain channels for soil and other impurities during opening. These impurities could lead to damage of the main valve disc. After turning the operation key 2 to 3 times the drain will stop flushing, and the barrel will be filled with water which will flow directly into the hoses and pumper connection or whatever is connected. Furthermore, when the hydrant is closed after service, the barrel will drain the water through the drain holes in the base. Therefore, it is important to make sure that the base is surrounded by gravel allowing the hydrant to drain and flush without washing off the soil. If not, this could result in under mining of the pavement. AVK dry barrel fire hydrants meet or exceed AWWA C-502 and are UL/ULC listed and FM approved. The fire hydrants are designed for high performance, easy repair and minimum end user costs for labor and inventory. Series 27 is available in different configurations. 6 Valves and hydrants for fire protection

7 All AVK hydrants offer numerous features including: Hydrant serviceable under pressure Light-weight, inexpensive hydrant tools available Ductile iron nozzle section, barrel section and base High pressure rating bar (250 PSI) Electrostatically applied epoxy coating in- and outside and above ground parts additionally with UV-resistant red polyester coating 360 nozzle section rotation possible Removable nozzles secured with external stainless steel allen screw Travel stop nut in the nozzle section for additional safety Pumper nozzle can be changed from 4" - 41/2" Nozzles available in most thread configurations Traffic flange designed for easy repair Stainless steel traffic coupling designed for longer operational life and high corrosion resistance Extensions available in lengths from 6"-60", bury depths 2'-13' Patented AVK main valve design - 1 piece replaces up to 13 pieces Ductile iron core fully encapsulated with EPDM rubber Completely corrosion resistant (stop pins of stainless steel) 51/4" valve opening for high flow rating 360 all bronze drain channel Inlet shoe can be easily changed - available in most configurations Internal trim for higher corrosion resistance Optional extra: Monitor elbow Multioutlet Handwheel Landing valves Valves and hydrants for fire protection 7

8 AVK DRY BARREL FIRE HYDRANT UL/FM approved, stem rod of SS AISI 316, 250 PSI 27/EM AVK dry barrel hydrants are designed with a traffic flange for easy repair after collision. The hydrant s main valve has a ductile iron core which is fully encapsulated in EPDM rubber. The nozzle section can be rotated 360 degrees. The upper section of the hydrant is repairable under pressure. Product Description: Dry barrel hydrant for fire protection application Outlets: 2 x 2½" NST hose nozzles + 1 x 4" BSP pumper nozzle, male threads Inlet: Straight shoe 6", ANSI B16.42, class 150 Standards: Designed according to AWWA C502 Flange drilling to ANSI B 16.42, class 150 Test/Approvals: Hydraulic test to AWWA C502. Body 2 x 250 PSI, seat 2 x 250 PSI FM approved. UL and ULC listed CE Reg.Nr CPD-6122 Features: UL/ULC listed and FM approved Meets or exceeds AWWA C502 (latest) High pressure rating (250 psi) The breakable flange and stem rod coupling ensure no leaking and easy repair at traffic knock down Ductile iron nozzle section, barrel section, bonnet, and base 5.25 valve opening for high flow rating Hydrant drain easily plugged if required - may be plugged internally or externally Extensions available in lengths from 6 to 60 Inlet shoe is available as straight shoe or elbow shoe; in DN100, DN150 PN16 or 4", 6" ANSI class 150. Epoxy coating according to DIN , GSK approved. Above ground parts additionally coated with red UV-resistant polyester coating NB. The hydrant is shown with accessories COPYRIGHT AVK GROUP A/S 2013 AVK Belgium N.V. 8 Valves and hydrants for fire protection

9 AVK DRY BARREL FIRE HYDRANT UL/FM approved, stem rod of SS AISI 316, 250 PSI 27/EM Screw rotated 45 from true position Screw rotated 45 from true position mm " flat face flange Component list 1. Bolt Stainless steel 2. Weather shield Grey cast iron 3. Lubrication hole seal NBR rubber 4. O-rings NBR rubber 5. Lock plate and screw Stainless steel 6. Thrust nut Bronze 7. Stem nut Bronze 8. Nozzle section Ductile iron 9. Stop nut Stainless steel 10. Stem rod bushing Brass 11. O-rings NBR rubber 12. O-rings NBR rubber 13. Cap Ductile iron 14. Cap gasket NBR rubber 15. Nozzle Bronze 16. Nozzle O-ring NBR rubber 17. Cap chain Plated steel 18. Bolt Stainless steel 19. Lock ring Stainless steel 20. Barrel gasket, steel insert NBR rubber 21. Upper stem rod Stainless steel 22. Upper barrel Ductile iron 23. Breakable flange Ductile iron 24. Split bolt and pin Stainless steel 25. Breakable coupling Stainless steel 26. O-rings NBR rubber 27. Valve seat ring Bronze 28. Drain ring Bronze 29. Lower barrel Cast iron 30. Lower stem rod Stainless steel 31. Standpipe flange Cast iron 32. Threaded rod Stainless steel 33. Flanged inlet shoe Cast iron 34. Main flange gasket NBR rubber 35. O-ring NBR rubber 36. Main valve disc Iron core, EPDM rubber Reference nos. and dimensions Total Bury Therotical AVK ref. nos. DN length depth Weight mm mm mm Kg 27EMU72040AJ08CQ Valves and hydrants for fire protection 9

10 AVK DRY BARREL FIRE HYDRANT WITH MONITOR ELBOW UL/FM approved, stem rod of SS AISI 316, 250 PSI 27/CY AVK dry barrel hydrants are designed with a traffic flange for easy repair after collision. The hydrant s main valve has a ductile iron core which is fully encapsulated in EPDM rubber. The nozzle section can be rotated 360 degrees and fixed in four positions. The upper section of the hydrant is repairable under pressure. Product Description: Dry barrel hydrant for fire protection application Outlets: 2 x 2½" NST hose nozzles + 1 x 4" BSP pumper nozzle, male threads - monitor elbow 4" flange, ANSI B16.42, class 150 Inlet: Straight shoe 6", ANSI B16.42, class 150 Standards: Designed according to AWWA C502 Flange drilling to ANSI B 16.42, class 150 Test/Approvals: Hydraulic test to AWWA C502 body 2x250 PSI, seat 2x250 PSI FM Approved. UL and ULC listed. Features: UL/ULC listed and FM approved Meets or exceeds AWWA C502 (latest) High pressure rating (250 psi) Monitor elbow with 4" ANSI cl. 150 flange, optionally with 3" ANSI cl. 150 flange Ductile iron nozzle section, barrel section, bonnet, and base 5.25" valve opening for high flow rating Hydrant drain easily plugged if required - may be plugged internally or externally Extensions available in lengths from 6" to 60" Inlet shoe is available as straight shoe or elbow shoe; in DN100, DN150 PN16 or 4", 6" ANSI class 150 Epoxy coating according to DIN , GSK approved. Above ground parts additionally coated with red UV-resistant polyester coating NB. The hydrant is shown with accessories COPYRIGHT AVK GROUP A/S 2013 AVK Belgium N.V. 10 Valves and hydrants for fire protection

11 AVK DRY BARREL FIRE HYDRANT WITH MONITOR ELBOW UL/FM approved, stem rod of SS AISI 316, 250 PSI 27/CY flange and elbow, 5 available in 3 flange and elbow Bolt rotated 45 from true position Bolt rotated 45 from true position View A mm " flat face flange Component list 1. Bolt Stainless steel 2. Weather shield Grey cast iron 3. Lubrication hole seal NBR rubber 4. O-rings NBR rubber 5. Lock plate and screw Stainless steel 6. Thrust nut Bronze 7. Stem nut Bronze 8. Nozzle section Ductile iron 9. Stop nut Stainless steel 10. Stem rod bushing Brass 11. O-rings NBR rubber 12. O-rings NBR rubber 13. Cap Ductile iron 14. Cap gasket NBR rubber 15. Nozzle Bronze 16. Nozzle O-ring NBR rubber 17. Cap chain Plated steel 18. Bolt Stainless steel 19. Lock ring Stainless steel 20. Barrel gasket, steel insert NBR rubber 21. Upper stem rod Stainless steel 22. Upper barrel Ductile iron 23. Breakable flange Ductile iron 24. Split bolt and pin Stainless steel 25. Breakable coupling Stainless steel 26. O-rings NBR rubber 27. Valve seat ring Bronze 28. Drain ring Bronze 29. Lower barrel Cast iron 30. Lower stem rod Stainless steel 31. Standpipe flange Cast iron 32. Threaded rod Stainless steel 33. Flanged inlet shoe Cast iron 34. Main flange gasket NBR rubber 35. O-ring NBR rubber 36. Main valve disc Iron core, EPDM rubber Reference nos. and dimensions Total Bury Therotical AVK ref. nos. DN length depth Weight mm mm mm Kg 27CYU72040AJ08CQ Valves and hydrants for fire protection 11

12 AVK DRY BARREL FIRE HYDRANT Multi outlet type, stem rod of SS AISI 316, 250 PSI 27/EK AVK dry barrel hydrants are designed with a traffic flange for easy repair after collision. The hydrant s main valve has a ductile iron core which is fully encapsulated in EPDM rubber. The nozzle section can be rotated 360 degrees and fixed in four positions. The upper section of the hydrant is repairable under pressure. Product Description: Dry barrel hydrant for fire protection application Outlets: 2 x 2½" NST hose nozzles + 1 x 4" BSP pumper nozzle, male threads Multi outlet: 1 x 4" BSP female thread Inlet: Straight shoe 6", ANSI B16.42, class 150 Standards: Designed according to AWWA C502 Flate face flanges Test/Approvals: Hydraulic test to AWWA C502, body 2x250 PSI, seat 2x250 PSI Features: Meets or exceeds AWWA C502 (latest) High pressure rating (250 psi) Multi outlet with 4" BSP female thread, optionally additional 2 x 2½" hose outlets, BSP female thread Ductile iron nozzle section, barrel section, bonnet, and base 5.25" valve opening for high flow rating Hydrant drain easily plugged if required - may be plugged internally or externally Extensions available in lengths from 6" to 60" Inlet shoe is available as straight shoe or elbow shoe; in DN100, DN150 PN16 or 4", 6" ANSI class 150. Epoxy coating according to DIN , GSK approved. Above ground parts additionally coated with red UV-resistant polyester coating NB. The hydrant is shown with accessories COPYRIGHT AVK GROUP A/S 2013 AVK Belgium N.V. 12 Valves and hydrants for fire protection

13 AVK DRY BARREL FIRE HYDRANT Multi outlet type, stem rod of SS AISI 316, 250 PSI 27/EK Screw rotated 45 from true position Screw rotated 45 from true position mm " flat face flange Component list 1. Bolt Stainless steel 2. Weather shield Grey cast iron 3. Lubrication hole seal NBR rubber 4. O-rings NBR rubber 5. Lock plate and screw Stainless steel 6. Thrust nut Bronze 7. Stem nut Bronze 8. Nozzle section Ductile iron 9. Stop nut Stainless steel 10. Stem rod bushing Brass 11. O-rings NBR rubber 12. O-rings NBR rubber 13. Cap Ductile iron 14. Cap gasket NBR rubber 15. Nozzle Bronze 16. Nozzle O-ring NBR rubber 17. Cap chain Plated steel 18. Bolt Stainless steel 19. Lock ring Stainless steel 20. Barrel gasket, steel insert NBR rubber 21. Upper stem rod Stainless steel 22. Upper barrel Ductile iron 23. Breakable flange Ductile iron 24. Split bolt and pin Stainless steel 25. Breakable coupling Stainless steel 26. O-rings NBR rubber 27. Valve seat ring Bronze 28. Drain ring Bronze 29. Lower barrel Cast iron 30. Lower stem rod Stainless steel 31. Standpipe flange Cast iron 32. Threaded rod Stainless steel 33. Flanged inlet shoe Cast iron 34. Main flange gasket NBR rubber 35. O-ring NBR rubber 36. Main valve disc Iron core, EPDM rubber Reference nos. and dimensions Total Bury Therotical AVK ref. nos. DN length depth Weight mm mm mm Kg 27EKU72040AJ08CQ Valves and hydrants for fire protection 13

14 Post indicators and gate valves for post indicators Post indicators are mounted end to end with the extension spindle connecting the valve. It is mounted in places where direct access is impossible. It could be gate valves mounted on a water ring main in a factory area, such as oil refineries, chemical plants or airports. The post indicator indicates if the valve is in open or closed position. According to government regulations, it must be easy for firemen to see if the valve is open or closed, even at a long distance. The post indicator signs OPEN and SHUT are mounted on the target according to valve size. The post indicator valves are used for underground installation in fire protection systems. The post indicator flange is incorporated in the top gland, giving a compact design. The basic valve construction is, like the construction of valves Vejle Brandvæsen for water supply, characterized by a fully rubber coated wedge, full and straight bore, low torque operation and O-ring stem seals replaceable under pressure. UL/FM for DN Valves and hydrants for fire protection

15 AVK series 34/00 post indicators for fire protection waiting to be installed under pressure at FM Logistic - Petresti, Romania. Resilient seated gate valves Metal seated gate valves Resilient seated gate valves A published test performed in City of Roseville, US, has proved that impurities up to Ø 8.7 mm can be handled by a DN 150 mm valve without any problems. The same test proved that the unique AVK EPDM rubber quality is the only rubber quality which instantly returns to the original shape when the valve is opened again. Valves and hydrants for fire protection 15

16 AVK FLANGED GATE VALVE, AWWA C509, 250 PSI 45/5D With post indicator plate and wrench nut, UL/FM approved, CTC AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability. Product Description: Flanged gate valve with post indicator plate for fire protection applications to max. 70 C Standards: Designed according to AWWA C509, Designed according to FM 1120/1130, UL 262 Face to face according to ANSI B16.10 Flange drilling to ANSI B16.42 cl. 150 Test/Approvals: Hydraulic test according to AWWA C509. Seat: 1.5 x PN (in Bar). Body: 2 x PN (in Bar). Operating torque test. FM Approved. UL listed. Features: Rated working pressure: DN PSI, DN PSI Fixed, integral wedge nut prevents vibration and ensures durability Fully vulcanized wedge with guide rails, integrated wedge shoes and a large conical stem hole Stem with wedge stop and rolled threads for high strength of aluminium bronze Stem sealing with an NBR wiper ring, two upper O-rings in a polyamide bearing, one lower O-ring and one O-ring gland seal Round NBR bonnet gasket fixed in a recess Countersunk and sealed acid-resistant stainless steel bonnet bolts encircled by the bonnet gasket Full bore Low operating torque Epoxy coating to DIN and AVK guidelines, RAL 3000 Accessories: Post indicator, wall post indicator COPYRIGHT AVK GROUP A/S Valves and hydrants for fire protection

17 AVK FLANGED GATE VALVE, AWWA C509, 250 PSI 45/5D With post indicator plate and wrench nut, UL/FM approved, CTC 1 H L Component list 1. Hexagon bolt Stainless steel 2. Washer Stainless steel 3. Wrench nut Grey cast iron 4. Gland bolt Stainless steel 5. Wiper ring NBR rubber 6. Bearing Polyamide 7. O-ring stem seal NBR rubber 8. Post indicator plate Ductile iron GJS (GGG-50) 9. O-ring gland seal NBR rubber 10. Thrust collar Brass 11. O-ring stem seal NBR rubber 12. Bonnet bolt seal Hot melt 13. Bonnet Ductile iron GJS (GGG-50) 14. Bonnet gasket NBR rubber 15. Bonnet bolt Stainless steel A4 16. Wedge nut Dezincification resistant brass 17. Stem Aluminium bronze 18. Wedge rubber EPDM rubber 19. Wedge Ductile iron 20. Body Ductile iron GJS (GGG-50) Reference nos. and dimensions AVK ref. nos. DN L H Theoretical mm mm mm weight Kg D D D D D D D Valves and hydrants for fire protection 17

18 AVK FLANGED GATE VALVE, PN 10/16, DIN F5 With post indicator plate and wrench nut, FM approved, CTC 45/AD AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability. Product Description: Flanged gate valve with post indicator plate for fire protection applications to max. 70 C Standards: Designed according to EN 1074 part 1 & 2, Designed according to FM 1120/1130, Face to face according EN558 table 2, series 15 Standard flange drilling to EN1092 (ISO ), PN 10/16 Test/Approvals: Hydraulic test according to AWWA C509. Seat: 1.5 x PN (in Bar). Body: 2 x PN (in Bar). Operating torque test. FM Approved. Features: Rated working pressure: DN PSI, DN PSI Fixed, integral wedge nut prevents vibration and ensures durability Fully vulcanized wedge with guide rails, integrated wedge shoes and a large conical stem hole Stem with wedge stop and rolled threads for high strength of aluminium bronze Stem sealing with an NBR wiper ring, two upper O-rings in a polyamide bearing, one lower O-ring and one O-ring gland seal Round NBR bonnet gasket fixed in a recess Countersunk and sealed acid-resistant stainless steel bonnet bolts encircled by the bonnet gasket Full bore Low operating torque Epoxy coating to DIN and AVK guidelines, RAL 3000 Accessories: Post indicator, wall post indicator COPYRIGHT AVK GROUP A/S Valves and hydrants for fire protection

19 AVK FLANGED GATE VALVE, PN 10/16, DIN F5 With post indicator plate and wrench nut, FM approved, CTC 45/AD H L Component list 1. Hexagon bolt Stainless steel 2. Washer Stainless steel 3. Wrench nut Grey cast iron 4. Gland bolt Stainless steel 5. Wiper ring NBR rubber 6. Bearing Polyamide 7. O-ring stem seal NBR rubber 8. Post indicator plate Ductile iron GJS (GGG-50) 9. O-ring gland seal NBR rubber 10. Thrust collar Brass 11. O-ring stem seal NBR rubber 12. Bonnet bolt seal Hot melt 13. Bonnet Ductile iron GJS (GGG-50) 14. Bonnet gasket NBR rubber 15. Bonnet bolt Stainless steel A4 16. Wedge nut Dezincification resistant brass 17. Stem Aluminium bronze 18. Wedge rubber EPDM rubber 19. Wedge Ductile iron 20. Body Ductile iron GJS (GGG-50) Reference nos. and dimensions AVK ref. nos. DN Flange L H Theoretical mm drilling mm mm weight Kg AD PN10/ AD PN10/ AD PN AD PN AD PN AD PN AD PN AD PN AD PN AD PN AD PN AD PN Valves and hydrants for fire protection 19

20 AVK POST INDICATOR 34/00 For AVK post indicator valves, UL/FM 001 AVK post indicators have a unique telescoping stem design which eliminates the need to disassemble and saw off sections of the stem during installation. The operating wrench can be locked on to make the valves tamper proof, and the AVK post indicators have a pre-cast threaded boss for mounting a supervisory switch. Product Description: Post indicator - Telescopic Standards: Designed according to UL 789, Designed according to FM class no Test/Approvals: FM Approved. UL listed. Features: UL/ULC Listed (DN ) and FM approved (DN ) Designed to operate on DN indicator valves Telescopic indicator posts are available in 3 basic lengths. Each has a 23-inch adjustment range and can be easily adjusted in the field without disassembly. Prepared for supervisory switch Lockable with strap Head and bonnet of ductile iron with epoxy coating internally and externally and a topcoat of UV-resistant polyester coating externally. Lower barrel of cast steel with bitumen coating, optionally of PVC. COPYRIGHT AVK GROUP A/S Valves and hydrants for fire protection

21 AVK POST INDICATOR 34/00 For AVK post indicator valves, UL/FM mm 765 mm Bury H1 Valve size H1 mm/inch Component list 1. Stem nut Copper alloy 2. Operating wrench Ductile iron, GJS (GGG-50) 3. Indicator bonnet Ductile iron, GJS (GGG-50) 4. O-ring NBR rubber 5. Circlip ring Stainless steel A2 6. Indicator head Ductile iron, GJS (GGG-50) 7. Target sign Aluminium 8. Bolt and washer Stainless steel Copper alloy 9. Target Copper alloy 10. Screw Stainless steel 11. Upper stem Galvanized steel 12. Lower stem Galvanized steel 13. Lower barrel Cast steel DN100/4 330/13 DN150/6 455/18 DN200/8 575/22½ DN250/10 685/27 DN300/12 785/31 DN350/14 980/38 ½ DN400/ /39 ½ 14. Tension pin Stainless steel 15. Nut Stainless steel 16. Sign cover Glass 17. Spacer pipe Carbon steel 18. Bolt Stainless steel 19. Wrench nut Ductile iron, GJS (GGG-50) 20. Tension pin Stainless steel 21. Set screw Stainless steel 22. Post indicator bell Ductile iron, GJS (GGG-50) 23. Bolt, washer and nut Stainless steel 24. Post indicator valve Assemble 25. Bolt Stainless steel Reference nos. and dimensions AVK ref. nos DN T T factory Theoretical mm mm set mm weight kg ¹ ¹ Only UL listed Valves and hydrants for fire protection 21

22 Air valve - for safety in your fire fighting pipe system K-060/62 HFNS Applications The K-HF NS series is adapted for clear water installation in dry fire protection where the filling and drainage operation has to be done quickly. Main features Reliable operation that reduces water hammer incidents. The controlled discharge of air (NS) will reduce surge effects and provide a silent closure of the air valve. Operation How to choose the right air valve? We offer you this service! - using a software program for the sizing and location of the air valve. The air and vacuum valve discharge air at high flow rates during the filling of the system and admits air at high flow rates during the drainage, pump shut-off or at water column separation. Description The K-060 NS series air and vacuum valve discharges air during the filling or charging of the system and admits air into the system during system drainage, valve or pump shut-off. The built-in throttling device on the non-slam disc will allow the graduated opening and closing of the disc orifice. Technical data According to the standard EN Working pressure type K-060 HFNS: PN 10 (0,1 à 10 bar) PN 16 (0,2 à 16 bar) Working pressure type K-062 HFNS: PN 25 (0,2 à 25 bar) Pressure test: each air valves are tested before leaving the plant at 1,5 x nominal pressure. Epoxy coating FBE according to DIN Dimensions BSPT (R): 2 Flange: DN 50 à DN 250 according to EN Working temperature - max. 60 C (90 C intermittent). Flange 10 bar 16 bar 25 bar DN kg 320 kg 500 kg DN kg 820 kg kg DN kg kg kg DN kg kg kg DN kg kg kg DN kg kg kg 22 Valves and hydrants for fire protection

23 Non-slam combination air valve operation in rapid filling of the pipeline When water, rapidly filling the pipeline, pushes the air out through the air valve, a differential pressure is created across the orifice. When this differential pressure reaches a prefixed level (usually it will be prefixed at 0,02-0,03 bar) the orifice disc will close. Air will continue to come out through the small orifice disc - until all the air will be exhausted and water will Non-slam disc: The built-in throttling device on the non-slam disc of the K-60-HFNS combination air valve will allow for the graduated opening and closing of the disc orifice reach the kinetic float. This double stage kinetic air discharge prevents the slam effect therefore suppresses water hammer. When water reaches the kinetic float, it lifts it up, closing the kinetic orifice and completing the kinetic cycle. The throtteling device will come back to its normal open position. Draining. When water is drained out of the pipeline, the resulting pressure drop lets the kinetic float fall down, opening the orifice fully for intake of high volume of air into the line. Valves and hydrants for fire protection 23

24 Gate valves for sprinkler systems AVK resilient seated gate valves are designed with a fully vulcanized rubber wedge. With this design no iron parts are exposed to the medium, and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. The rubber is vulcanized onto the wedge by AVK GUMMI A/S, one of Europe's leading manufacturers of high technology moulded rubber components. The high quality of AVK rubber is characterized by: Smell and taste response characteristics highly suitable for the food industry Very low deformation ensuring optimum sealing High impact resistance preventing corrosion Low friction ensuring low closing torques EPDM rubber for water supply Standard stem sealing system applications to DIN standard. NBR wiper ring polyamid bearing with 4 O-rings EPDM rubber manchette OS&Y stem sealing system NBR wiper ring polyamid bearing with 2 O-rings, replaceable under pressure with the valve fully open. O-ring protects the antifriction washers 24 Valves and hydrants for fire protection

25 Gate valves with flanges and grooved ends -pin indicator and OS&Y Grooved end valves with pin indicator - series 06/37 The valves fit the quick clamp system and are machined according to AWWA C606. The grooved end on the valve is fixed to the pipe material e.g. steel or cast iron - by means of standard clamping couplings. Flanged valves OS&Y - series 45/56 The OS&Y gate valves with flanges are used in above ground installations. Due to the rising stem it is easy to recognize the valve position, open or closed, even at a distance. Over the past 75 years, the grooved end clamping system has proved to be one of the fastest and most efficient ways of joining pipes due to its high degree of flexibility and rigidity, as well as a fast and easy assembly. The basic valve design is characterized by a fully rubber coated wedge, full and straight bore, low torque operation and O-ring stem seals replaceable under pressure. The system absorbs vibrations and noise transmission through the system. It has a certain degree of angular deflection of the pipe joints and alignment in all positions 360º around the pipe axis. Therefore, the system has gained a footing in high rise buildings where vibrations and stress of pipe systems are of significant importance. The series 06/37 valve is a further development of the wellknown VdS-approved gate valve series 06/35 which was originally designed for sprinkler systems. This industry has recognised the time saving and effective way to connect pipes and fittings. GGG-50 DN VdS-approved DN DN (21/2" - 12") UL-listed, FM-approved Flanged valves with pin indicator - series 06/35 The light weight flanged gate valve is very suitable for use in fire protection systems as an isolating gate valve for maintenance purpose. The pin indicator indicates the wedge position. Micro switches for remote indication of the wedge in open or closed position are available as an optional extra. The basic valve construction is, like the construction of valves for water supply, characterized by a fully rubber coated wedge, full and straight bore and 3 independant stem seals. GGG-50 Face to face to DIN 3202, F4 DN VdS-approved DN Valves and hydrants for fire protection 25

26 AVK FLANGED GATE VALVE, PN 10/16 DIN F4, pin indicator & handwheel, VdS approved, red RAL / AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability. Product Description: Flanged gate valve with Pin Indicator for fire protection application to max. 70 C Standards: Designed according to EN 1074 part 1 & 2, Designed according to EN 1171 Face to face according to EN 558 Table 2 Basic Series 14 Standard flange drilling to EN1092 (ISO ), PN 10/16 Test/Approvals: Hydraulic test according to EN and 2 / EN Seat: 1.1 x PN (in Bar). Body: 1.5 x PN (in Bar). Operating Closing torque test. test. Approved according to VdS Certificate No. G Features: Fixed, integral wedge nut prevents vibration and ensures durability Fully vulcanized wedge with guide rails, integrated wedge shoes and a large conical stem hole Stainless steel stem with wedge stop and rolled threads for high strength Full circle thrust collar provides fixation of the stem and low free running torques Triple safety stem sealing with an NBR wiper ring, a polyamide bearing with four NBR O-rings and an EPDM rubber manchette Round EPDM bonnet gasket fixed in a recess Countersunk and sealed stainless steel bonnet bolts encircled by the bonnet gasket Full bore Low operating torque Epoxy coating to DIN and AVK guidelines, RAL 3000 Accessories: Mounting kit for limit switch, limit switch, flange adaptor and combi-flange COPYRIGHT AVK GROUP 2013 Version no. 36-1/22/2013 9:29 AM 26 Valves and hydrants for fire protection

27 AVK FLANGED GATE VALVE, PN 10/16 DIN F4, pin indicator & handwheel, VdS approved, red RAL 3000 D H A B C D L Component list 1. Handwheel Grey cast iron, GJL-250 (GG-25) 2. Stem Stainless steel min. 13% Cr 3. Pin Stainless steel 4. Indicator nut Dezincification resistant brass 5. Wiper ring NBR rubber 6. O-ring NBR rubber 7. Bearing Polyamide 8. Bonnet Ductile iron, min. GJS (GGG-40) 9. Thrust collar Ductile iron, EN-GJS (GGG-50) 10. Manchette EPDM rubber 11. Bonnet bolt Stainless steel A2, sealed with hot melt 12. Bonnet gasket EPDM rubber 13. Wedge nut Dezincification resistant brass 14. Wedge Ductile iron with EPDM rubber 15. Body Ductile iron, min. GJS (GGG-40) Components can be substituted with equivalent or higher class materials. Reference nos. and dimensions DN Flange drilling L D H H3 Theoretical AVK ref. nos. mm drilling mm mm mm mm weight kg PN10/ PN10/ PN10/ PN10/ PN10/ PN10/ PN PN * 250 PN * 250 PN * 300 PN * 300 PN * 350 PN * 350 PN * 400 PN * 400 PN * Not approved to VdS Valves and hydrants for fire protection 27

28 AVK GROOVED END GATE VALVE, PN 16 With pin indicator & handwheel, VdS approved, red RAL / AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability. Product Description: Gate valve with grooved ends (AWWA C 606) and Pin Indicator for fire protection applications to max. 70 C Standards: Designed according to AWWA C606 Test/Approvals: Hydraulic test according to EN and 2 / EN Seat: 1.1 x PN (in Bar). Body: 1.5 x PN (in Bar). Operating Closing torque test. test. Approved according to VdS Certificate No. G Features: Fixed, integral wedge nut prevents vibration and ensures durability Fully vulcanized wedge with guide rails, integrated wedge shoes and a large conical stem hole Stainless steel stem with wedge stop and rolled threads for high strength Full circle thrust collar provides fixation of the stem and low free running torques Triple safety stem sealing with an NBR wiper ring, a polyamide bearing with four NBR O-rings and an EPDM rubber manchette Round EPDM bonnet gasket fixed in a recess Countersunk and sealed stainless steel bonnet bolts encircled by the bonnet gasket Full bore Low operating torque Epoxy coating to DIN and AVK guidelines, RAL 3000 Accessories: Mounting kit for limit switch, limit switch COPYRIGHT AVK GROUP 2013 Version no. 41-1/22/2013 9:32 AM 28 Valves and hydrants for fire protection

29 AVK GROOVED END GATE VALVE, PN 16 With pin indicator & handwheel, VdS approved, red RAL / H3 H W B DG D A L Component List: 1. Handwheel Grey cast iron, GJL-250 (GG-25) 2. Stem Stainless steel min. 13% Cr 3. Pin Stainless steel 4. Indicator nut Dezincification resistant brass 5. Wiper ring NBR rubber 6. O-ring NBR rubber 7. Bearing Polyamide 8. Bonnet Ductile iron, min. GJS (GGG-40) 9. Thrust collar Ductile iron, EN-GJS (GGG-50) 10. Manchette EPDM rubber 11. Bonnet bolt Stainless steel A2, sealed with hot melt 12. Bonnet gasket EPDM rubber 13. Wedge nut Dezincification resistant brass 14. Wedge Ductile iron with EPDM rubber 15. Body Ductile iron, min. GJS (GGG-40) Components can be substituted with equivalent or higher class materials. Reference Nos. and Dimensions: AVK ref. nos DN mm Product PN Class L mm H mm H3 mm W mm D mm DG mm A mm B mm Theoretical weight kg PN 10/ PN 10/ PN 10/ PN 10/ PN (1) 250 PN (1) 300 PN (1) Not approved to VdS For further details see section "Technical Information". The designs, materials and specifications shown are subject to change without notice due to the continuous development of our product programme. Version no. 41-1/22/2013 9:32 AM Valves and hydrants for fire protection 29

30 AVK FLANGED GATE VALVE OS&Y, AWWA C509, 250 PSI With rising stem and handwheel, UL/FM approved, CTC 45/ AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stuffing box sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability. Product Description: Flanged gate valve with rising stem OS&Y for fire protection applications to max. 70 C Standards: Designed according to AWWA C509, Designed according to FM 1120/1130, UL 262 Face to face according to ANSI B16.10 Universal flange drilling to EN1092 (ISO ), PN 10/16 Test/Approvals: Hydraulic tests according to AWWA FM and C509 UL Standards. Seat: 1.5 x PN (in Bar). Body: 2 x PN (in Bar). Closing torque test. FM Approved. UL listed. Features: Fixed, integral wedge nut prevents vibration and ensures durability Fully EPDM rubber vulcanized wedge in ductile iron with guide rails, integrated wedge shoes and a large conical stem hole Stem of copper alloy C36000 with wedge stop and rolled threads for high strength. DN 300 is of aluminium bronze. Stuffing box for re-tightening with three main O-rings, and two NBR O-rings in a polyamide gland bushing Round NBR bonnet gasket fixed in a recess Countersunk and sealed bonnet bolts of acid-resistant stainless steel A4 up to DN 200 and of anti-friction coated steel 12.9 in DN , encircled by the bonnet gasket Full bore Low operating torque Epoxy coating to DIN and AVK guidelines, RAL UV resistant coating on request. Accessories: Supervisory switch COPYRIGHT AVK GROUP 2013 Version no. 15-2/1/ :14 PM 30 Valves and hydrants for fire protection

31 AVK FLANGED GATE VALVE OS&Y, AWWA C509, 250 PSI With rising stem and handwheel, UL/FM approved, CTC 45/ D Hc Ho L Component List: 1. Stem nut Dezincification resistant brass 2. Handwheel Grey cast iron, GJL Washer Zinc coated steel 4. Stud bolt Stainless steel A4 5. Yoke Ductile iron 6. Gland follower Ductile iron 7. Hexagon nut Stainless steel A2 8. Gland Polyamide 9. Washer RG5 bronze 10. O-ring SBR rubber 11. Gland bushing Polyamide 12. O-ring NBR rubber 13. Bonnet Ductile iron, min GJS (GGG-40) 14. Bonnet bolt Stainless steel A4, sealed with hot melt 15. Bonnet gasket NBR rubber 16. Stem** Copper alloy C36000 ASTM B Pin Stainless steel A2 18. Wedge nut Dezincification resistant brass 19. Wedge Ductile iron with EPDM rubber 20. Body Ductile iron, min GJS (GGG-40) * Bolt, DN Steel 16.9, anti-friction coated ** Stem, DN 300: Aluminium bronze Reference Nos. and Dimensions: AVK ref. nos DN mm Flange drilling L mm H close mm H open mm D mm Turns to open Theoretical weight kg (1) 65 PN10/ (1) 80 PN10/ (1) 100 PN10/ (1) 150 PN10/ (1) 200 PN (1) 200 PN (1) 250 PN (1) 250 PN C (2) 300 PN (1) UL/FM approved. Other flange drillings on request (2) Stem in alu. bronze. UL/FM approved. Other flange drillings on request (3) Stem in aluminium bronze. Other flange drillings on request For further details see section "Technical Information". The designs, materials and specifications shown are subject to change without notice due to the continuous development of our product programme. Version no. 15-2/1/ :14 PM Valves and hydrants for fire protection 31

32 Series 27 - flow/pressure loss/operation The AVK dry barrel hydrant meets or exceeds the requirements of FM 1510 and UL 246. Hydrant, bury depth of 1.5 meters to bottom of pipe: head loss = max bar per hose connection flow = min. 946 L/min per hose connection Hydrant with pumper connection: head loss = max bar, when flow = 3785 L/min OPERATION AND MAINTENANCE The AVK modern hydrant is designed to be an easily operated, low torque, high flow fire hydrant. The thrust bearing hydrant requires a minimum of torque to operate. It is possible to damage the hydrant by forcing it beyond its limits of travel with excess torque; therefore: 1. Check direction of opening as marked on the hydrant weathershield. 2. To open, turn the operating nut in the opening direction, indicated by an arrow on the weathershield, until the main valve, is fully open (approximately 19 to 21 turns). The stop nut, should prevent the hydrant from opening beyond the fully open position. Do not force the hydrant in the opening direction beyond full open as indicated by sudden resistance to turning. If water does not flow when the hydrant is open, it is probably due to a closed valve upstream from the hydrant. 3. To close, turn the operating nut until the main valve stops off the flow. It is not necessary to close this type of hydrant with great force. Once the flow has stopped, loosen the operating nut in the opening direction, 1/2 to 1 turn to take the strain off the operating parts of the hydrant and to make it easier to open the hydrant. Weathershield note: open left shown. Stop nut resting against internal lubrication reservoir in the nozzle section. 32 Valves and hydrants for fire protection

33 Flanges: Gate valves according to DIN - raised face, PN 10/16 EN 1092 / ISO Dh ds Number D Dt mm df dr mm of holes Bolt size DN mm mm PN 10 PN 16 mm mm PN 10 PN 16 PN 10 PN 16 PN 10 PN M M M M M M M20 M M20 M M20 M M20 M M24 M M24 M M24 M M27 M33 dr DN Dt ds df Dh D Flanges: Gate valves accoring to AWWA C509, flat face ANSI B16.42, class 150 Dh ds Number D mm df dr mm of holes Bolt size DN mm cl. 125/150 mm mm cl. 125/150 cl. 125/150 cl. 125/ , M , M , M , M ,4 3 22,2 8 M ,5 3 22,2 8 M ,2 3 25,4 12 M ,8 4 25,4 12 M ,1 4 28,6 12 M ,6 4 28,6 16 M , M , M , M33 dr DN Dt ds df Dh D Valves and hydrants for fire protection 33

34 Technical appendix Corrosion protection and Rubber technology Blast cleaning All cast components are blast cleaned according to ISO , SA 2½. The components are cleaned in a shot-blasting plant. The cleaned parts are held with fibre-free gloves and are transported to the oven without delay according to GSK specifications. When viewed, the surface shall be visibly free from oil, grease, dirt, mill scale, rust, paint and foreign objects. Any remaining traces of contamination shall show only as slight stains in the form of spots or stripes. The surface shall have a uniform metallic colour, visually and compared with test plates. The process ensures an optimum bonding of the coating, which is essential for corrosion resistance. Epoxy coating The valve bodies and bonnets are epoxy coated according to DIN and GSK guidelines. The epoxy coating is electrostatically applied in an enclosed coating booth, max. 4 hours after the valve components were blast cleaned. The epoxy powder melts between ºC, and cures when in contact with the cleaned and preheated component, ensuring an optimal bonding. Test procedure Coating thickness: The coating layer thickness shall be no less than 250 μ. Pore-free coating: The coating must be completely free of penetrating pores to avoid subsequent corrosion of the casting underneath. A 3V holiday detector with a brush electrode is used to electrically reveal and locate any pores in the coating. Impact resistance: The impact resistance test is carried out at least 24 hours after the coating process by means of a stainless steel cylinder dropped on the coating surface through a one meter long tube corresponding to an impact energy of 5 Nm. After each impact the component is electrically tested, and no electrical breakthrough shall occur. Cross linkage: Several drops of methyl isobutyl ketone are put on a horizontal epoxy resin coated surface of the test piece at room temperature. After 30 seconds the test area is wiped with a clean white cloth. It is checked that the test surface has not become neither matt nor smeared, and that the cloth remains clean. The test is carried out 24 hours after the coating process. Adhesion: The adhesion of the powder coating on one of each type of component is tested at least four times a year using the punch separation method according to DIN The coating thickness over a dispersed area of the test item shall be within the range 250 μ to 400 μ. The test pieces are immersed for seven days in deionised water at 90ºC, and then dried in an oven for 3 hours. A conditioning phase of 3 to 5 days in normal atmosphere is then allowed to elapse. No blisters may arise during the period immersed in the water bath. 34 Valves and hydrants for fire protection

35 Technical appendix Corrosion protection and Rubber technology The surface of the test piece is degreased and then roughened with abrasive paper. The roughened surface is cleaned from dust with oil-free compressed air and recleaned. The adhesion on both the core and the moulding sand sides is tested with a minimum pulling force of >12 N/mm². Cathodic disbonding: Cathodic disbonding tests are carried out on one of each type of component at least twice a year. No bubbles in the coating may develop during the test for cathodic disbonding. For this test, the coating thickness over a dispersed area of the test item shall be within the range 250 μ to 400 μ. Approvals: The coating is approved for use in drinking water systems, meeting all specified toxicological conditions, by the following institutes: Hygiene Institute, Germany Hydrocheck, Belgium CARSO L.S.E.H.L., France Rubber technology: The high quality rubber used in the wedge has an excellent compression set also called memory(the ability to recover the original shape after being compressed). Even after many years of operation, tiny pebbles, sand and other impurities will not affect the rubber surface or the tightness of the valve. Unique AVK rubber compounds are applied to ensure that the wedge can absorbe the impurities in closed position and is able to regain its original shape when it is opened again. EN A common European standard stating the minimum requirements for the physical properties. Compression set (permanent deformation). The rubber is deformed by 25 % of its original thickness at a constant temperature for a specific time. The pressure on the rubber is relieved and the layer thickness is measured after half an hour. The smaller the deformation, the better the memory effect. 20 % compression set EN AVK EPDM AVK NBR EN AVK EPDM 23ºC, 72 hours, 25 % 70ºC, 72 hours, 25 % AVK NBR Valves and hydrants for fire protection 35

36 AVK is certified according to ISO 9001, ISO 14001, and OHSAS AVK focuses on the environment AVK recognises the dangers of environmental impact also from a global point of view. AVK products are part of the infrastructure and as such they are an important part of the environment. Therefore, we constantly work on reducing this impact and seek to identify areas of improvement not only in our production processes but also in relation to our suppliers. At our factories and in all processes AVK works systematically on: always complying with environmental and work environmental legislation and other relevant requirements from authorities. reducing the amount of waste within the company. Where possible we recycle waste materials from production or alternatively apply the most environmentally friendly waste disposal methods. minimizing the consumption of energy and raw materials. minimizing the use of materials and processes which may be hazardous to the external environment or the work environment. informing and educating employees, enabling them to act in accordance with our environmental objectives and thereby contribute to minimising environmental hazard. taking environmental factors into consideration when choosing suppliers. advising customers on the use and disposal of our products. continuous improvement on prevention of pollution. AVK BELGIUM N.V. Zoomstraat 6A 9160 Lokeren Belguim Tel.: Fax: info@avkvalves.be Copyright AVK Group A/S 2013 Printed matter