soft seat sealing butterfly valve


soft seat sealing butterfly valve
soft seat sealing butterfly valve


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soft seat sealing butterfly valve Product introduction

Soft seat sealing butterfly valve are used in on-off and control flow of medium in vaired pipelines such as foodstuff,beverage,machine,chemical engineering,industrial enviromental proction,water treatment and building ect .Soft seat sealing butterfly valve Standard: ANSI, DIN, JIS, GB, etc
More Structure: Soft Seat Sealing ( Or metal seat sealing)

 
Soft seat sealing butterfly valve Product Description
1 Body : Cast Iron: ASTM A126CL. B , DIN1691 GG25, EN 1561 EN-GJL-200;
               Ductile Iron:ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15;
              Stainless Steel: ASTM A351 CF8, CF8M;Carbon Steel: ASTM A216 WCB
2 Stem:  Zinc Plated Steel; Stainless Steel: ASTM A276 Type 316, Type 410, Type 420; ASTM
              A582 Type 416;
3  Taper Pin : Stainless Steel: ASTM A276 Type 304, Type 316;
4  Seat : NBR, EPDM, Neoprene, PTFE, Viton;
5  Disc : Ductile Cast Iron (Nickel plated):ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-   400,Stainless Steel:ASTM A351 CF8, CF8M; CF3, CF3M; EN 1.4408, 1.4469; 1.4501;
  AL-Bronze:  ASTM B148     C95400;
6 O-Ring:  NBR, EPDM
7  Bushing  :Polymer water-proof materials ,Nylon, Bronze;

soft seat sealing butterfly valve Technical parameters

Description Standard
Design and manufacture EN593
Face to face ISO5752 series14, EN558-1 series 14, DIN3202 F4
Flange and drilling ISO7005-2, EN1092,
Pressure test EN12266
Top flange of bare shaft valve ISO5211
Top flange on worm gearbox for e-actuator ISO5210

soft seat sealing butterfly valve Main connection dimensions

Name Material
Body ductile cast iron, WCB, stainless steel
Disc ductile cast iron, WCB, stainless steel, Al-bronze
Stem SS420, SS431
Disc seat ring EPDM,NBR,VITON
Body seat ring SS304
Retainer SS304, SS316
Shaft bearing Al-bronze, self-lubricating bearing
Bolt & nuts 8.8 grade galvanized, SS304
Coating epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc.