Product Details import US standard valve imported American Standard American Standard check valve Overview imports rely on the media itself refers to flow automatically open and close the valve, the valve to prevent the media back, also known as a check valve, single the valve, reflux valve, and back pressure valve. Check valves are an automatic valve, whose main role is to prevent the media back, to prevent the pump and drive motor reversal, and discharge the container medium. Pressure valve which can also be used to exceed the system pressure may rise auxiliary systems provide supply pipeline. Check valve can be divided into the swing check valve (depending on the focus of rotation) and lift check valves (axial movement). US imports of standard check valve structure and characteristics: 1, selected materials, in line with domestic and foreign standards, high overall quality of the material. 2, Sealing 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, good anti-abrasion performance , long service life. 3, can be a variety of standard pipe flanges and flange sealing types to meet various project needs and user requirements. 4, the full range of body materials, gaskets, according to the actual working conditions or user requirements reasonable matching can be applied to all kinds of pressure, temperature and medium conditions. 5, users can design and manufacture different forms and connection forms a check valve structure for a variety of equipment for use. Imported American Standard valve technical parameters 1, nominal diameter: DN15-3000,1 / 4-100 inch 2, nominal pressure: PN0.6-PN320; Class150LB-2500LB; JIS10K-20K 3, Temperature: -196 ℃ -550 ℃ 4, Body material: steel, stainless steel, chrome molybdenum steel 5, sealing surface: chrome stainless steel welding, welding carbide, chromium nickel-titanium stainless steel 6, Gasket: graphite strip winding parameters, polytetrafluoroethylene fluoride 7, Connection: flange 8, the use of media: water, steam, oil and other imported American standard valve performance specifications: Nominal (Lb) 150 300 600 strength tests MPa 3.1 7.8 15.3 Lbf / in2 450 1125 2225 Water seal test MPa 2.2 5.6 11.2 Lbf / in2 315 815 1630 gas seal test MPa 0.5 ~ 0.7 Lbf / in2 60 ~ 100 US imports of standard check valve parts material and performance: body, cover, valve, rocker, pin guide sleeve gasket seal surface temperature (℃) Suitable medium WCB 2Cr13 reinforced flexible graphite 1Cr13 / Flexible Graphite stainless steel / acid asbestos PTFE gasket 13Cr STL tooth body material PTFE nylon ≤425 water, steam, oil, nitric acid, acetic acid type, strong oxidizing medium, urea WC1 ≤450 WC6 ≤540 WC9 ≤570 C5 C12 ≤550 CF8 304 ≤600 CF3 316 CF8M 304L CF3M 316L imported American standard check orders:? Please indicate the following when ordering: 1, ① Product name and model ② nominal diameter ③ ⑤ nominal rated flow coefficient KV④ working medium connection ⑥ ⑦ ⑧ inlet pressure enclosure so that for your correct selection. 2. Please indicate any special requirements when ordering products. 3, if the unit has been selected by the design model, press model directly to our Sales Department Order. 4, when the occasion is very important or the environment is more complicated, you try to provide design drawings.