H41W check valve material known, have made 301 304 316 316L, in line with domestic and foreign standards, high overall quality of the material. H41W check valve sealing surface pair advanced and reasonable, the valve seat sealing surface using iron-based alloy or Stellite (Stellite) cobalt-based alloy cladding into the surface, wear-resistant, high temperature resistance, corrosion resistance, rub good hurt performance, long life. H41W valve manufacturing strict / T12235 designed and manufactured according to national standards GB. Wenzhou Long Valve H41W check valve can be produced by a variety of standard pipe flanges and flange sealing types to meet various project needs and user requirements. Users can design and manufacture different forms and connection forms a check valve structure for a variety of equipment for use. H41W check valve body materials is complete, the gasket according to the actual working conditions or user requirements reasonable matching can be applied to all kinds of pressure, temperature and medium conditions. H41W check BOMs: No. NO Part Name This Series Carbon Steel Carbon Steel Alloy steel series stainless steel series Stainless Steel ASTM / ASME 1 Body / Body A216 / WCB A217 / WC9 A351 / CF8 A351 / CF3M 2 Seat / Seat A105 A182 / F304 A182 / F304 A182 / F316L 3 valve / Disc A105 A182 / F304 A182 / F304 A182 / F316L 4 Spring / Spring 316 316 316 316L 5 Gasket / Gasket 304+ 316+ folders flexible graphite folders flexible graphite / PTFE 6 bonnet / Bonnet A216 / WCB A217 / WC9 A351 / CF8 A351 / CF3M 7 Stud / Stud A193 / B7 A193 / B16 A193 / B8 A193 / B8M 8 hex nut / Nut A194 / 2H A194 / 7 A194 / 8 A194 / 8 For medium water, steam, oil and other water, steam, oil and other nitric acid, acetic acid, etc. Suitable temperature -29 ℃ ~ 425 ℃ -29 ℃ ~ 550 ℃ -29 ℃ ~ 200 ℃ Wenzhou Long Valve H41W check valve is designed to control the flow of media in the pipeline check valve to prevent the media back, is one of the production process control system are an important part, H41W check valve positioned along the center for the lifting movement, bushings use good wear resistance, low coefficient of friction of special materials, flexible and reliable, excellent sealing performance.