Stafsjö Valves AB. SE Stavsjö, Sweden. Tel: +46 (0) Fax: +46 (0) A Bröer Group company
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- Leslie Welch
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1 Product: W W Stafsjö s knife gate valve W is a bi-directional valve with full bore. It is made to handle different liquids, especially in water, waste water and biogas plants. The W valve is designed of one piece or a two piece valve body in cast iron, with flange gaskets integrated in the body. Small cavities in the bore provide for good flow characteristics and minimize the risk for clogging. The valve is equipped with a gate in stainless steel and a sealing profile in EPDM or Nitril. Stafsjö s unique gland box packing, TwinPack, gives a tight sealing and assures high operation reliability. The valve is modular designed and it can easily be provided with different actuators and accessories. Stafsjö s knife gate valve W is designed, manufactured, inspected and tested according to the European Pressure Equipment Directive (PED 97/23/EC) category II module A1. The valve is therefore CE-marked. The W valve is also available in an ATEX design (ATEX 94/ 9/EC II cat 3 G/D for zone 2 and 22). Please contact Stafsjö or your local representative for more information and advice. Information is only for informational purpose. All specifications are subject to change without notice. Stafsjö Valves A. SE Stavsjö, Sweden. Tel: +46 (0) Fax: +46 (0) info@stafsjo.se A röer Group company
2 Product: W Design data Sizes Flange drilling Face-to-face dimension Leakage rate DN 50 - DN 1200 EN 1092 PN 10 DN 50 - DN 300: DIN 3202 K1 DN DN 1200: Stafsjö manufactoring std Other sizes on request Pressure tests Pressure tests are performed with water at 20º C according to EN :2003. Pressure for shell test: 1,5 times maximum allowable working pressure for open valve. Pressure for seat tightness test: 1,1 times maximum allowable differential pressure for closed valve. EN :2003 Rate A: no visually detectable leakage is allowed for duration of the test MSS SP-81 Maximum working pressure body at 20 C Maximum differential pressure at 20 C DN bar DN bar asic equipment A. Valve ody DN Material Type Max. temperature C Cast iron (A) GG Nodular iron (L) GGG Standard colour: epoxy colour, thickness µm, RAL Gate DN Material Type Stainless steel AISI316L/EN1.4404/SS Stainless steel AISI304/EN1.4301/SS2333 C. Sealing profile Material Max. temperature C EPDM (E) 120 Nitril (N) 100 D. ox packing Material ph Max. temperature C TwinPack TM (TY)
3 Product: W Actuators Manual Automatic Hand wheel 1) (HW) Pneumatic cylinder (AC) Hand lever 2) 3) (HL) Electric motor (EM) Chain wheel 2) (CW) Hydraulic cylinder 2) (MH) Ratchet wrench 2) evel gear 2) (RW) (G) 1) For recommended size, see page 5 column E. 2) For recommended size, see separate data sheet. 3) Differential pressures in preferred or reversed direction according to design data are not valid for hand lever (HL). Maximum differential pressure in preferred direction at 20 C for DN 50 - DN 200: 4 bar. Pneumatic cylinder Electric motor AUMA multi-turn DN valve Size AC Maximum Force (kn) DN valve AUMA Attachment , SA 07.1 F10/A SA 07.5 F10/A SA 10.1 F10/A SA14.1 F14/A , SA14.5 F14/A SA16.1 F16/A The table above gives recommended cylinder sizes at normal operation with 5 bar air pressure. For other operating conditions, please contact Stafsjö or your local representative for advice. Electric motors are mounted according to standard ISO The table above gives recommended motor sizes at normal operation. For other operating conditions, please contact Stafsjö or your local representative for advice. The actuators are described in detail in separate data sheets. For actuators classified according to ATEX, please contact Stafsjö or your local representative. Accessories Knife gate valve Accessories Model Design Mechanical limit switch Ersce E AC15 6A/230 V Inductive limit switch ifm electronic IG-2008-AOA/IG wire, V AC/DC ifm electronic IG-3008-PKG/IG wire, V DC PNP Stem extension Short Pipe Length < 1.5 m Long Pipe Length > 1.5 m Pneumatic cylinder Accessories Model Design Solenoid valve Metal Work mono stable 5/2, series 70 1/4 Metal Work mono stable 5/2, series 70 1/2 Magnetic limit switch Elobau & wire, V AC/DC Elobau PE & PE09 3-wire, V DC PNP The accessories are described in detail in separate data sheets. For accessories classified according to ATEX, please contact Stafsjö or your local representative. 3
4 Product: W 3 b 1 3 a 2 c 2 2 b 2 a a 4 b a 2 0 b g 7 e f 7 8 c 8 b 8 a c 7 d 1 3 a 1 3 b a 1 0 a 1 0 c Part list Pos Part Material (Name) Pos Part Material (Name) 1 Hand Wheel Epoxy coated Ø Ø 315 Gjutjärn (GG25) > Ø 400 Gjutjärn (GG20) 8b Washer Stainless steel (A2) 8c Nut Stainless steel (A2) 9 ox packing* See equipment D 2 Yoke Steel (Q235), epoxy coated 10/a Valve body See equipment A 2a earing ar brass (CuZn39Pb3) 10c Flange sealing* NR 2b Slide Washer POM 13 Sealing profile* See equipment C 2c earing ar brass (CuZn39Pb3) 13a Pin, long* Stainless Steel (304) 3 Stem Stainless Steel SS b Pin, short* Stainless Steel (304) 4 Stem Nut ar brass (CuZn39Pb3) 14 Guiding pads POM-C 4a Washer Stainless steel (A2) 16 Gate guard, 4b olt Stainless steel (A2) Not for HW Steel (Q235), epoxy coated 6 Gate See equipment 17 Gate clevis Stainless steel (SS2346) 7 eam Steel (Q235), epoxy coated 18 Cylinder See data sheet 7c olt Stainless steel (A2) 20 olt Stainless steel (A2) 7d Washer Stainless steel (A2) 20a Washer Stainless steel (A2) 7e Washer Stainless steel (A2) 20b Nut Stainless steel (A2) 7f Nut Stainless steel (A2) 21 Locking pin Stainless steel (SS2343) 7g olt Stainless steel (A2) 25 Piston rod Stainless Steel (303) 8 Gland Ductile iron (GGG50), epoxy coated 28 Jam nut Stainless steel (SS2346) 8a Pinnolt Stainless steel (A2) * Recommended spare parts 4
5 Product: W E F G H K D C A L J E One piece body: DN 50 - DN 600 F L G K K H H D C A L J Main dimensions Two piece body: DN DN 1200 Dimensions (mm) DN A C D E F G H J K L Weight* kg , , , , * Weight valve including hand wheel (HW) Main dimensions are only for information. Contact Stafsjö for certified drawings. 5
6 Product: W DN 50 - DN 65 DN 80 - DN 200 DN 250 DN 300 DN 350 DN 400 DN 500-DN Flange drilling 2 2 DN DN 900-DN DN EN 1092 PN10 (mm) DN Outside flange diameter olt circle diameter Number of throughgoing bolts ( ) =Throughgoing - holes EN 1092 PN10 (mm) 2 DN Outside 2 flange diameter and the estimated thickness of the gasket =Tapped holes 2 =Tapped holes Number of tapped hole/side ( ) 4 =Throughgoing 4 holes Screw length olt circle diameter and the estimated 460thickness of the 515 gasket Number of throughgoing =Tapped holes bolts ( ) =Throughgoing 6 holes Number of tapped hole/side ( ) =Tapped holes 10 =Throughgoing 10 holes Screw 16 length M20 M24 M24 M Screw 33length 36 Outside flange diam (mm) olt circle diameter (mm) Size of throughgoing holes in flange Ø22 Ø26 Ø26 Ø30 Ø33 Ø36 Ø36 Ø39 No. of throughgoing bolts Outside ( ) flange diam (mm) β No. of tapped hole/side. olt ( circle ) diameter (mm) ,25 11, No. of throughgoing bolts ( M20 ) M24 10 M24 10 M ,50 6,43 6,43 5,63 Screw lengths 1) Size of throughgoing holes No. of in tapped flangehole/side. ( ) Ø22 Ø26 6Ø26 6Ø M M M24 M ) Add the values with Size of throughgoing holes in the thickness of the pipe flanges, 11,25 the 11,25 Ø22 washers 9 Ø26 and 9 Ø26 Ø30 the estimated thickness of the gasket. Screw lengths 1) =Tapped holes =Throughgoing holes holes 11,25 11, ) Add the values in the table Screw with lengths 1) the thickness of the pipe flanges, the washers =Tapped holes holes =Throughgoing holes Screw length and the estimated thickness of the gasket Add the values 600 in the table with the thickness of the pipe flanges, the washers Screw length Outside flange diam (mm) and the estimated 780 thickness of the gasket olt circle diameter (mm) No. of throughgoing bolts Outside ( ) flange diam (mm) No. of tapped hole/side. ( olt ) circle diameter (mm) No. of throughgoing bolts M20 ( ) M24 M24 10 M Size of throughgoing holes No. in of flange tapped hole/side. Ø22 ( ) Ø26 Ø266 Ø M20 M24 M24 M M16 M16 M16 M16 M16 M20 M20Screw length M20 M20 Outside flange diam (mm) olt circle diameter (mm) No. of throughgoing bolts Outside ( ) flange diam (mm) No. of tapped hole/side. olt ( circle ) diameter (mm) No. of throughgoing bolts ( M20 ) M24 10 M24 10 M Size of throughgoing holes No. of in tapped flangehole/side. ( ) Ø22 Ø26 6Ø26 6Ø M M M24 M27 Size of throughgoing holes in 11,25 flange 11,25 Ø22 9 Ø26 9 Ø26 Ø30 Screw lengths 1) ,25 11, ) 1) Add the values in the table Screw with lengths the thickness of the pipe flanges, the washers Size of throughgoing holes in flange Ø18 Ø18 Ø18 Ø18 Ø18 Ø22 Ø22 Ø22 Ø22 β ,5 22,5 22,5 22,5 22, Screw lengths 1) ) Add the values in the table with the thickness of the pipe flanges, the washers
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