BROEN Butterfly valves

Transcription

1 BROEN Butterfly valves Triple eccentric butterfly valves BROEN Butterfly valves Application Butterfly valves type BROEN are used as a shut-off valves and regulating valves in many different applications: - district heating and district cooling systems - energetic systems - machine oil and gas installations - steam pipelines and installations - corrosive media installations Connections Type AKW AKFL AKBW Version Interflanged Wafer Flanged Welded Nominal pressure: PN PN 63 ANSI Nominal diameters: DN DN 3000 Seal: metal/metal Tightness: - Leakage Class A according to ISO Lamellar metal/metal seal + graphite Standard version: PN 25, Tmax: 425 o C body: cast steel WCB disc: cast steel WCB lamella sealing: stainless steel + graphite - certified 0062 Actuators: worm gearbox as a standard electric-, pneumaticand hydraulic actuators available on a request

2 Technical specification BROEN Butterfly valves can be applicable in pipelines as a shut-off and regulating valves, available in interflanged version ( wafer type), with welding ends and in flanged version. The triple eccentric construction reflects on the highest tightness class at the low closing torque and also enables efficient opening of the disc at the maximal differential pressure. BROEN Butterfly valves' seal structure is elliptical and the contour of the seal is a part of the surface of the cone whose axis is inclined relative to the axis perpendicular to the disk and passing through its center (see the figure below). The butterfly valve s disc is mounted rigidly on a single shaft by pins. Self-centering seat is mounted either on the butterfly valve s body or on the disc. The sealing surface is hardened with the stainless steel overlay (see detailed scheme below). Stellit hardened sealing surface is also available upon a request. The shaft is sealed by graphite inserts and may be sealed additionally. The shaft's mounting is resistant to temperature changes of flowing medium. BROEN Butterfly valves are resistant to the contamination of the pipeline network water and present class A tightness in both flow directions. The butterfly valve's construction is resistant to mechanical stress (pressure, internal and external stress, erosion, cavitation), as well as non-mechanical stress conditions (temperature, corrosion). The solid and robust construction of butterfly valve has no parts that require periodic service, ie elements that need lubrication or any additional sealing, accessible only after removing the valve from the pipeline. BROEN Butterfly valves are standard equipped with the self-locking mechanical gearboxes, which closing is provided by turning the handwheel to the right. The repair of gearbox or replacement for the electric actuator can be performed without removing the valve from the pipeline, provided that it is in the closed position. Butterfly valves can be mounted anywhere in the heating network, both in vertical pipelines as well as horizontal. Metal/metal sealing scheme Construction details The package of lamellar metal/metal seal is mounted on the butterfly valve s disc, however in AKW version of 104 series in diameters up to DN 500 is mounted on the body of butterfly valve. Stainless steel rings are arranged lamellar with thin graphite layers, which provide the mimimal move ability of the individual rings between each other during the closing of the butterfly valve providing the 100% tightness in both flow directions. In butterfly valves of standard WCB cast steel version the seat surface is hardened with the 304 stainless steel overlay. In this construction stainless steel rings of lamellar sealing stay in direct contact with the hardened seat surfaces so there is no corrosion process and long-term durability of the seal is ensured. Moreover, this construction solution eliminates the need of using discs of stainless steel. On a special request the stellit hardened seat surface is also available

3 Available material versions Nominal pressure: Nominal diameter: Body test pressure: Sealing test pressure: PN 16 - PN mm PN x 1.5 MPa PN x 1.1 MPa ANSI 150 LB LB 3 48 inch Materials on special request standard version on special request Cast iron * Ductile iron * Cast steel WCB Stainless steel * CF8 Stainless steel * CF8M Maximal work temperature C C C C C Medium water, sea water, steam, gas, oil, etc. water, steam, gas, oil, etc. Realization standard: EN 593 corrosive media, chemicals, steam Connections: flanged, wafer EN welded EN Body dimensions: flanged, wafer EN 558 welded EN Pressure test and inspection: EN EN * Realization according to other standards on request Available maximal working pressure regarding to the temperature for different material versions and types of butterfly valves

4 The overview of butterfly valves' types available on the market Construction type Scheme Available working conditions Description Centric butterfly valves PN 6 PN C +120 C Soft seal: NBR, EPDM, PTFE, Silicone, Viton or without sealing. Leakage about 1% Kv for hard seated version. During the opening and closing there is a strong traffic friction between disc and seal over the entire range (around bearing) which with the participation of impurities significantly shortens the life of such a seal. Single eccentric butterfly valves PN 6 PN C +120 C Only soft seal available: NBR, EPDM, PTFE, Viton. There is a traffic friction between disc and seal during opening and closing of butterfly valve. The disc loses contact with the sealing after about 10% open, which significantly shortens the life of the seal. Double eccentric butterfly valves PN 6 PN C C Soft seal: NBR, EPDM, PTFE, Viton. Metal/metal sealing. During the opening or closing of butterfly valve the disc loses contact with the sealing after about 3-4% open, which may cause damage to the seal. In addition, there is a risk for jamming of the metal/metal seated butterfly valves used for fluids, which precipitate the "rock" limescale. Triple eccentric butterfly valves PN 6 PN C +600 C Only metal/metal sealing available. There is no traffic friction during opening and closing of the butterfly valve. The disc loses contact with the seat immediately after the start of opening. This construction minimizes the torque value, guarantees 100% tightness and long life of the seal. Triple eccentric construction scheme second eccentric opening direction disk in the open position flow direction first eccentric disk in the closed position α third eccentric Description BROEN Butterfly valves are proudly built using the achievements of the 21st century in the development of high pressure valve technology. The triple eccentric design ensures zero leakage using the smallest possible torque value. Frictionless triple eccentric metal/ metal sealing of BROEN Butterfly valves enables efficient opening of the disc at the maximum pressure difference. At the same time triple eccentric construction is protecting against jamming of the disc. The low torque is a factor influencing on the selection of preferably smaller mechanical gearboxes, moreover determines the selection of the smaller (cheaper) dimensions of electric-, pneumaticor hydraulic actuators. - 1st - eccentric - moving the shaft axis relative to the sealing surface axis. - 2nd - eccentric - moving the shaft axis relative to the valve axis. - 3rd - eccentric - the conical shaped sealing surface with the cone axis shifted by the angle. Flow regulation BROEN Butterfly valves in addition to cut-off function may be used as a regulating (control) valves. The mechanical worm gearboxes mounted on the butterfly valves are fitted with disc opening angle indicator. While opening the butterfly valve's disc for a given angle, we're using the graph (on the right) and the table (underneath) to determine the approximate percentage of maximal Kv flow coefficient indicated for the appropriate diameter, taking it as a Kv m. In this way, knowing the measured pressure difference P [bar] at the valve and substituting calculated Kv m flow ratio into the formula below, we can calculate the actual model-based flow rate Q [m 3 /h]: Regulation curve Cv flow coefficient depending on the position angle of the valve disc Cv coefficient (%) Kv flow coefficients for the butterfly valves Cv [Cv=1,16Kv] DN mm (in) 80 (3) 100 (4) 125 (5) 150 (6) 200 (8) 250 (10) 300 (12) 350 (14) 400 (16) 450 (18) Kv DN mm (in) 500 (20) 600 (24) 700 (28) 800 (32) 900 (36) 1000 (40) 1100 (44) 1200 (48) Kv Opening angle of the valve disc Suggested area of effective flow regulation is achieved between the opening angle of 25 and the angle of 65 (red field). In some cases it is acceptable to extend the range of angles between 20 and 70 (light grey area)

5 Butterfly valves type AKW with the interflanged connection Construction scheme Butterfly valve DN 350 type AKW with the interflanged connection Description Cast steel Alloy * Stainless steel * 1. Body ASTM A216 WCB ASTM A217 WC6 CF8 CF8M 2. Ring ASTM A Disc ASTM A216 WCB ASTM A217 WC6 CF8 CF8M 4. Seat** Gland inserts graphite 6. Shaft ASTM A ASTM A ASTM A182 F304 ASTM A182 F314 Aplication water, steam, oil corrosive media, steam Working temperature C C C 7. Bolt 8. Nut / Pin 9. Seat 10. Mounting screw 11. Shaft cover 12. Distance ring 13. Ring 14. Gasket 15. Screw 16. Funnel bearing 17. Actuator mounting base 18. Worm gearbox 19. Lamellar sealing ring * Material version available upon a request ** Stellit hardened seat available upon a request Triple eccentric butterfly valve type AKW PN16/PN25 with the interflanged connection DN L H1 H2 D D2 B a Body dimensions for DN 80 DN 1200 according to ISO5752 EN558-1 Series 16; DIN3202 K3. Main dimensions are aplicable for versions PN 6, PN 10 * weight for PN25 with worm gearbox. Dimensions of butterfly valves in diameters above DN 1200 available upon a request. PN16 PN25 Weight D1 4 / Z-M D1 4 x Z-M kg* , Ø Ø , Ø Ø , Ø Ø , Ø Ø , Ø Ø , Ø Ø , M M , M M , M M , M M , M M , M M , M M , M M , M M , M M , M M

6 Butterfly valves type AKFL with the flanged connection Construction scheme Butterfly valve DN 350 type AKFL with the flanged connection No. Description Cast steel Alloy * Stainless steel * 1 Body ASTM A216 WCB ASTM A217 WC6 CF8 CF8M 2 Ring ASTM A Disc ASTM A216 WCB ASTM A217 WC6 CF8 CF8M 4 Seat** Shaft ASTM A ASTM A ASTM A ASTM A Gland inserts graphite Aplication water, steam, oil corrosive media, steam Working temperature C C C 7 Retaining bearing Dn200< 8 Lamellar sealing 9 Bolt 10 Screw 11 Shaft cover Dn200< 12 Bearing 13 Ring Dn200< 14 Gland 15 Actuator mounting base 16 Groove * Material version available upon a request ** Stellit hardened seat available upon a request Triple eccentric butterfly valve type AKFL PN16/PN25 with flanged connection DN L H Ho Do A B Main dimensions are aplicable for versions PN 6 and PN10; *weight for PN25 with worm gearbox Dimensions of butterfly valves in diameters above DN 1200 available upon a request. PN16 PN25 Weight* D1 D2 Z-M D1 Z-M kg xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM xM

7 Butterfly valves type AKBW withe the welded connection Construction scheme Butterfly valve DN400 type AKBW with the welded connection No. Description Cast steel Alloy * Stainless steel * 1 Body ASTM A216 WCB ASTM A217 WC6 CF8 CF8M 2 Ring ASTM A Disc ASTM A216 WCB ASTM A217 WC6 CF8 CF8M Triple eccentric butterfly valve type AKBW PN25 with the welded connection 4 Seat** Shaft ASTM A ASTM A ASTM A ASTM A182 F316 6 Gland inserts graphite Aplication water, steam, oil corrosive media, steam Working temperature C C C 7. Retaining bearing Dn200< 8. Lamellar sealing 9. Bolt 10. Screw 11. Shaft cover Dn200< Main dimensions are aplicable for versions PN 10 and PN16; *weight for PN25 with worm gearbox 12. Bearing 13. Ring Dn200< 14. Gland 15. Actuator mounting base 16. Groove * Material version available upon a request ** Stellit hardened seat available upon a request DN L H Ho Do A B D1 D2 Weight kg* ,5 88, ,1 114, ,7 139, ,3 168, ,1 219, ,0 273, ,7 323, ,4 359, ,8 406, ,4 508, ,6 609, ,6 711, ,2 812, ,4 914, ,

8 Triple eccentric butterfly valve type AKW PN40/PN63 with the interflanged connection h H Ho Z-M A B ISO5211 D1 D2 L DN DN Dimensions (mm) D1 D2 Z-M L Ho H h A B Connection acc. ISO F F F F M F M F M F M F M F M F M F M F30 Connection dimensions for BROEN Butterfly valves Connection scheme DN ISO5211 d1 d2 d3 N-d0 4*t E h1 h 80 F Ø10 4* F Ø10 4* F Ø12 4* F Ø12 4* F Ø14 4* F Ø14 4* F Ø18 4* F Ø22 4* F Ø22 4* F Ø18 4* F Ø18 4* F Ø18 4* F Ø22 4* F Ø22 4* F Ø33 4* F Ø39 4* F Ø39 4* Torque values for BROEN Butterfly valves DN Torque value [Nm] PN 6 PN 10 PN 16 PN 25 PN 40 PN 63 PN Security factor 30% already included

9 Butterfly valves index creation algorithm By the inquiry whether ordering BROEN Butterfly valves due to specify a particular version of a given diameter of butterfly valve and its material version it is needed to use the index system. BROEN Butterfly valves index system consist of the series of 15 alphanumeric characters, which can be divided into global module (10 digits) and version (material) module (5 letters) GBPSS global module version module Both modules contain a group of characters that relate to the specific butterfly valve's parameters. Groups of characters in the various modules and their references are described on the right. Sample index The sample index of butterfly valve shown above to the right belongs to the group GBPSS, the most common among the butterfly valves for district heating and power industry. According to the index creation algorithm, it means the butterfly valve (65) with flanged connection (103), pressure version PN 25 (25), dimension DN 300 (300) with already mounted gearbox (G), which is the latest generation butterfly valve (B), designed for water and steam (P), with the body made of cast steel WCB (S) and the disc made of cast steel WCB (S). Butterfly valves are standard equipped with mechanical worm gearbox. For butterfly valves with mounted electric- or pneumatic actuators, index changes in version module G becomes H, but drives are offered on individual indexes. Selection of AUMA electric atuators for BROEN Butterfly valves at p 16bar DN Electric atuator DN 80 SG07.1 DN 100 SG07.1 DN 125 SG10.1 DN 150 SG10.1 DN 200 SG12.1 DN 250 SG12.1 DN 300 SA07.2-GS 100.3/VZ 4.3 DN 350 SA07.6-GS 100.3/VZ 4.3 DN 400 SA07.6-GS 125.3/VZ 4.3 DN 450 SA10.2-GS 125.3/VZ 4.3 DN 500 SA07.6-GS 160.3/GZ DN 600 SA10.2-GS 160.3/GZ DN 700 SA10.2-GS 200.3/GZ DN 800 SA10.2-GS 200.3/GZ DN 900 SA10.2-GS 250.3/GZ DN 1000 SA14.2-GS 250.3/GZ For dimensions above DN 1000 selection of actuators available upon a request Wiring on the AUMA plug, work duty: S2-15 min, AUMA 3-phase engine, class F insulation, thermal motor protection (other voltages at extra cost), 1 micro switch for each opening and closing positions, 1 limit microswitch for each end position OPEN / CLOSED, anticondens. heater, mechanical position indicator, manual wheel drive, the valve connection according to EN ISO 5211, the rotation angle of 90 (swivels from 82 to 98 ), operating temperature - 25 C to + 80 C (70 C for 1-phase voltage), the protection class IP 67 according to EN (IP 55 for DC motor), KN corrosion protection, paint silver-gray (DB 701, similar to RAL 9007), electric scheme: KMS TP100/001. Selection of regulating actuators AUMA type SGR and SAR with MATIC and AUMATIC modules available upon a request. Butterfly valve type AKW DN200 with electric actuator AUMA

10 Selection of CLORIUS electric actuators for BROEN Butterfly valves at p 16bar DN Electric actuator Actuator details DN 80 CAR 028 Electric actuator, 3P steering, 274Nm, 230V, IP67, connection F10, F12 acc. ISO 5211 DN 100 CAR 028 Electric actuator, 3P steering, 274Nm, 230V, IP67, connection F12 acc. ISO 5211 DN 125 CAR 038 Electric actuator, 3P steering, 373Nm, 230V, IP67, connection F10, F12 acc. ISO 5211 DN 150 CAR060 Electric actuator, 3P steering, 588Nm, 230V, IP67, connection F12, F14 acc. ISO 5211 DN 200 CAR100 Electric actuator, 3P steering, 981Nm,230V, IP67, connection F12, F14 acc. ISO 5211 DN 250 CAR200 Electric actuator, 3P steering, 1962Nm, 230V, IP67, connection F14, F16 acc. ISO 5211 DN 300 CAR200 Electric actuator, 3P steering, 1962Nm, 230V, IP67, connection F14, F16 acc. ISO 5211 Selection of actuators for dimensions above DN 300 available upon a request. Selection of REGADA electric actuators for BROEN Butterfly valves at p 16bar Butterfly valves details Electric actuator details DN Torque Connection Connection Shut-off torque Operation time Actuator type + gearbox [Nm] F ØA F ØA [Nm] [sec./90 ] F07 Ø18 SP 2.3 F07/F10 Ø F07 Ø20 SP 2.3 F07/F10 Ø F07 Ø25 SP 2.4 F10/F12 Ø F10 Ø25 SP 2.4 F10/F12 Ø F12 Ø30 SP 3.5 F12 Ø F12 Ø35 SP 3.5 F12 Ø F14 Ø40 MO F2AC/06 + MF14/F14/F10 F16 Ø F16 Ø45 MO F2AC/06 + MF15/F16/F10 F16 Ø F16 Ø50 MO W2AC/06 + MF16/F25/F10 F16 Ø F25 Ø60 MO M2AC/06 + MF20/F25/F10 F25 Ø F25 Ø70 MO M2AC/06 + MF30/F25/F10 F25 Ø F30 Ø80 MO V2AC/06 + MF40/F30/F10 F30 Ø F35 Ø90 MO AC/06 + MF40/F35/F10 F35 Ø Standard version: electric connection on the terminal board, manual handwheel, 2 torque switches, 2 position switches, 2 signal switches, protection class: P/SO - IP67, MO - IP 55, heater with the thermostat, connection: mechanical, flanged, optical position indicator. Selection of pneumatic actuators for BROEN Butterfly valves at p 16bar DN REMOTE CONTROL CLORIUS DN80 RC230DA AD80 DN100 RC240DA AD100 DN125 RC250DA AD100 DN150 RC260DA AD100 DN200 RC265DA AD140 DN250 RC265DA AD140 DN300 RC270DA AD160 DN350 RC280DA AD210 DN400 RC280DA AD210 DN450 RC 88 DA DN500 RC 88 DA DN600 RCG 100DA Drive air pressure 6 bar

11 OPERATION MANUAL OF THE BROEN BUTTERFLY VALVES CONSTRUCTION AND APPLICATION The triple eccentric BROEN butterfly valves are used as regulatory and shut-off valves. Wide range of applications is possible thanks to various types of construction materials. The triple eccentric design allows high tightness class. The disc is mounted rigidly on a single shaft by pins. Lamella seat can be embedded in the valve body or on the disc. The sealing surface is hardened. The shaft is sealed by graphite inserts and may be sealed additionally. In standard valves are equipped with a worm gearbox. An electric, pneumatic or hydraulic actuator is available on request. PACKING, STORAGE Valves should be transported on the pallets or in the boxes protecting from possible damage. Valves should be kept in closed rooms with the air humidity below 70%. Surfaces mechanically machined are coated with an anti-corrosion substance protection. At long periods of storage, all steel and not painted surfaces should be at least once a year re-covered with the protecting anti-corrosion substance. Valves should be protected from sand, dust and other contaminants. Valves should not be lifted grabbing by the drive. INSTALLATION Before mounting the valve, the pipeline should be thoroughly rinsed. Residues from welding and other contaminants remaining in the pipeline could damage the seals. It is also important to check if the valves has not been contaminated during the transport and storage. Wash off the protective substance right before installing the valve. The butterfly valves should be installed so that the main flow direction matches the arrow on the body It is recommended to install the valves so that the rotation axis of the spindle is set in a horizontal position. Thoroughly center the axis of the valve and the seals, so that nothing prevents the movement of the disc. Before the installation set the disc in the closed position to avoid the damaging of the valve sealing elements. The butterfly valve cannot be used to support the pipeline. During the installation: - check the alignment of the pipeline and the valve - place the supports near the valve - check if the pipeline is adequately protected from the effects of the temperature changes The pipeline must be adequately supported. With insufficient support the butterfly valve is exposed to additional stress which may result in joint leaks or noisy operation and vibrations. Temperature changes cause thermal elongations which must be adequately compensated (eg by installing bellows compensators between the network fixed points). The lack of adequate compensation may result in the increased stress on the joints between the valve and the pipeline and may cause damage and leakage. OPERATION AND MAINTENANCE Butterfly valves are designed to long maintenance-free operation. The need of later maintenance can be reduced by the precision kept during the installation. Glands require regular checking. Do not loosen the glands because it may result in leaks. Do not exchange the glands and sealing inserts when the installation is under pressure. The leakage in the closed valve may be caused by the dirt on the sealing surfaces. If the valve is equipped with an actuator, check if the switches has worked at the right time. Contamination can be removed by a light valve opening and rinsing it off from the sealing. In case of no result, check the condition of the sealing rings and possibly replace them. In the working conditions including a maximum temperature of 425 C and the maximum allowable working pressure, due to the creep of the material, the life of the valve is expected to 100,000 working hours

12 Thank you for your trust!

13 Notes