Section 18 Butterfly Valves
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1 Section 18 Butterfly Valves Edition 2 261
2 [18] BUTTERFLY VALVES Butterfly Valves Resilient seat Butterfly Valves are used in a wide range of Industries including HVAC, Gas, Petrochemical, Pulp & Paper, Water & Wastewater Treatment, Brewing, Food processing, mining, Textile and General Industry. They are compact and give bubble tight shut off as well as having good regulating capabilities. 1. Wafer Butterfly Style The body design is such that it can be used with most international flanges including AS2129, BS10, ANSI, DIN & JIS Standards in sizes 50mm to 300mm. The wafer style is designed for inline service and relies on a flange either side of the valve to secure in the pipeline. Materials (Cast Iron Butterfly) Materials (SS Butterfly) PART MATERIAL PART MATERIAL Body Cast Iron Body CF8M Handle Ductile Iron Handle SS304 Stem SS416 Stem SS416 Hub Shaft CF8M Hub Shaft SS416 Bushing P.T.F.E. Bushing PTFE O-Ring O-Ring EPDM 2. Lugged Butterfly Style Like the wafer style, the lugged body is compact but has a series of lugs cast into the body which are tapped with a metric thread for the fixing of a flange on one side at a time. The benefit of this being the valve can be mounted at the end of a pipeline without the need for a flange on the downstream (discharge) side of the valve. Materials List Specifications PART MATERIAL Cold Working Pressure (50-300mm) 1600kPa Body Ductile Iron Cold Working Pressure ( mm) 1000kPa Handle Ductile Iron Top Flange ISO 5211 Stem SS416 Hub Shaft CF8M Bushing P.T.F.E. O-Ring Gear Operators (Optional) For precise regulation of Butterfly valve where flow control is critical Levers & Notch plates only have 10 position setting Product Summary DESCRIPTION RANGE BODY DISC SEAT GEAR-OP (STD) VW## WAFER 2-12 CAST IRON SS CAST IRON NICKEL PLATED DUCTILE IRON VWE## WAFER 2-14 CAST IRON SS316 EPDM VWEX##SS WAFER CAST IRON SS316 EPDM Y VWV## WAFER 2-8 CAST IRON SS316 VITON VWSS## WAFER 2-6 CF8M (SS316) SS316 PTFE VWLG## LUGGED 2-12 DUCTILE IRON SS DUCTILE IRON NICKEL PLATED DUCTILE IRON VWLGE## LUGGED 2-12 DUCTILE IRON SS316 EPDM VWLGE##SS LUGGED DUCTILE IRON SS316 EPDM Y VWLGA LUGGED 2-6 DUCTILE IRON SS316 Y Y 262
3 BUTTERFLY VALVES [18] Resilient Seat Material for Butterfly Valves COMMON NAME ASTM DESIGNATION D Resilient Seat Material for Butterfly Valves COMPOSITION GENERALLY RESISTANT TO GENERALLY AFFECTED OR ATTACKED BY Buna-N or Nitrile Temp C Nitrile Butadiene Many Hydrocarbons, fats, oils, greases, hydraulic fluids and chemical Ozone s, keytones, esters, aldehydes, chlorinated and nitro hydrocarbons EPT or EPDM Viton Teflon EPDM Temp C FPM Temp C TFE Temp C Ethylene-propylenedieneterpolymer Hexfluoropropylene Vinylidene Fluoride Animal and vegetable oils, ozone, strong and oxidising chemicals All aliphatic, aromatic and halogenated Hydrocarbons, acids, animal and vegetable oils Mineral oils and solvents, aromatic hydrocarbons Keytones, Low mole weight ester and nitro containing compounds Tetrafluoro-Ethylene Resin Most know fluid chemicals - Specific Resistance EPDM VITON TFE Abrasion Good Good Good Good Oxidisation Good Excellent Excellent Excellent Heat Aging Good Excellent Very Good Excellent Flame Poor Poor Excellent Excellent Oil Very Good Poor Excellent Excellent Fuel Good Poor Excellent Excellent Keytones/Esters Fair Excellent Poor Excellent Aliphatic Hydrocarbon Excellent Poor Excellent Excellent Aromatic Hydrocarbon Fair Poor Excellent Excellent Water Good Very Good Very Good Excellent Torque PN16 (N.M) /
![[18] BUTTERFLY VALVES Wafer Butterfly Valve EPDM VITON Wafer Butterfly Valve with Stainless Steel Disc HI H2 H3 D L K F E N-D2 4 -D1 VW50 VWE50 VWV50](/docs-images/82/86362126/images/4-0.jpg "2 70 140 31.8 125 42.04 11 14.1 70 4-19 10 3.09 VW65 VWE65 VWV65 2 1/2 79 155 31.8 145 44.68 11 14.1 70 4-19 10 3.8 VW80 VWE80 VWV80 3 83 160 31.")
4 [18] BUTTERFLY VALVES Wafer Butterfly Valve EPDM VITON Wafer Butterfly Valve with Stainless Steel Disc HI H2 H3 D L K F E N-D2 4 -D1 VW50 VWE50 VWV VW65 VWE65 VWV65 2 1/ VW80 VWE80 VWV VW94 VWE94 VWV VW95 VWE VW96 VWE96 VWV VW98 VWE98 VWV VWX25 VWEX VWX30 VWEX Wafer Butterfly Valve with Gear-Op EPDM Wafer Butterfly Valve with Nickel Plate Ductile Iron Disc and G/O HI H2 H3 D L E R S T Z ØD Q 4-D1 N-D2 VWX35 VWEX VWX VWX VWX VWX
![BUTTERFLY VALVES [18] Wafer Butterfly Valve with Gear-Op Wafer Butterfly Valve with Stainless Steel Disc and G/O (EPDM) HI H2 H3 D L E R S T Z ØD Q 4-D1 N-D2](/docs-images/82/86362126/images/5-0.jpg "VWEX35SS 14 368 267 45 470 78 102 8 11 8 31.6 28 12 12-28.4 45 VWEX40SS 16 400 298.6 51.2 521 102 140 10 8 5 33.15 45 18 16-28.4 78 VWEX45SS 18 422 318 51.")
5 BUTTERFLY VALVES [18] Wafer Butterfly Valve with Gear-Op Wafer Butterfly Valve with Stainless Steel Disc and G/O (EPDM) HI H2 H3 D L E R S T Z ØD Q 4-D1 N-D2 VWEX35SS VWEX40SS VWEX45SS VWEX50SS VWEX60SS Stainless Steel Wafer Butterfly Valve Stainless Steel Wafer Butterfly Valve with Stainless Steel Disc (PTFE) HI H2 H3 D L K F E N-D2 4 -D1 VWSS VWSS65 2 1/ VWSS VWSS VWSS VWSS
6 [18] BUTTERFLY VALVES Lugged Butterfly Valve EPDM Lugged Butterfly Valve with Stainless Steel Disc HI H2 H3 D L K E F 4-D1 N-D2 APPROX. VWLG50 VWLGE M VWLG65 VWLGE65 2 1/ M VWLG80 VWLGE M VWLG94 VWLGE M VWLG95 VWLGE M VWLG96 VWLGE M VWLG98 VWLGE M VWLGX25 VWLGEX M20 29 VWLGX30 VWLGEX M24 44 Lugged Butterfly Valve with Gear-Op Lugged Butterfly Valve with Nickel Plated Ductile Iron Disc and G/O () HI H2 H3 D L E R S T Z ØD Q 4-D1 N-D2 VWLGX M24 75 VWLGX M VWLGX M VWLGX M VWLGX M
![BUTTERFLY VALVES [18] Lugged Butterfly Valve with Gear-Op Lugged Butterfly Valve with Stainless Steel Disc and G/O (EPDM) HI H2 H3 D L E R S T Z ØD Q 4-D1 N-D2 VWLGEX35SS 14 368 267 45 470](/docs-images/82/86362126/images/7-0.jpg "78 102 8 11 8 31.6 28 12 12-M24 75 VWLGEX40SS 16 400 298.6 51 521 102 140 10 8 5 33.")
7 BUTTERFLY VALVES [18] Lugged Butterfly Valve with Gear-Op Lugged Butterfly Valve with Stainless Steel Disc and G/O (EPDM) HI H2 H3 D L E R S T Z ØD Q 4-D1 N-D2 VWLGEX35SS M24 75 VWLGEX40SS M VWLGEX45SS M VWLGEX50SS M VWLGEX60SS M Lugged Butterfly Valve Table D Lugged Butterfly Valve Table D with Stainless Steel Disc () HI H2 H3 D L K E F 4-D1 N-D2 VWLG94D M VWLGX25D M20 29 APPROX
![[18] BUTTERFLY VALVES Lugged ANSI 150 Butterfly Valve Lugged ANSI 150 Butterfly Valve with Stainless Steel Disc () HI H2 H3 D L K E F 4-D1](/docs-images/82/86362126/images/8-0.jpg "N-D2 VWLGA50 2 70 140 31.8 120 42.04 11 70 14.1 10 4-5/8 4.7 VWLGA65 2 1/2 79 155 31.8 139 44.68 11 70 14.1 10 4-5/8 5.")
8 [18] BUTTERFLY VALVES Lugged ANSI 150 Butterfly Valve Lugged ANSI 150 Butterfly Valve with Stainless Steel Disc () HI H2 H3 D L K E F 4-D1 N-D2 VWLGA /8 4.7 VWLGA65 2 1/ /8 5.3 VWLGA /8 5.4 VWLGA /8 8.9 APPROX. VWLGA / VWLGA / VWLGA /4 20 VWLGAX /8 29 VWLGAX /8 44 Gear Operators Gear Operators A B C H L W D D1 F h n-m APPROX VWG50/80N 2, 2 1/2, M8 2.5 VWG94N M8 2.5 VWG95/96N 5 & M8 2.5 VWG98N M VWGX25N M VWGX30N M
![BUTTERFLY VALVES [18] Roll Groove Butterfly Valve (for indoor use) Materials Specifications PART MATERIAL Working Pressure 1200kPa MATERIAL Nylon 11 coated ductile](/docs-images/82/86362126/images/9-0.jpg "iron Max.")
9 BUTTERFLY VALVES [18] Roll Groove Butterfly Valve (for indoor use) Materials Specifications PART MATERIAL Working Pressure 1200kPa MATERIAL Nylon 11 coated ductile iron Max. Working Temp 120 C Disc EPDM encapsulated ductile iron Factory installed UL approved tamper switch Stem Hardened / Tempered stainless steel * 50mm comes in Brass Body Roll Groove Butterfly Valve L H A B C D W GV50* GV65 2 1/ GV GV GV GV W H A B C L D 269
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