Wafer Flange Type Butterfly Check Valves 316 Stainless Steel Non Return Check Valve

Wafer Flange Type Butterfly Check Valves 316 Stainless Steel Non Return Check ValveCheck Valves are installed in high pressure lines to stop reverse flow by the automatic close of flapper or dart. Flapper check valves include top-entry check valves and in-line flapper check valves, which allow fluids to flow towards the wellbore and prevent flowing backwards. For dart check valves, the flow will open the dart by overcoming the small spring force. When the flow runs in opposite direction, the spring will push the dart against the seat retainer to prevent reverse flow. We provides both standard and reverse-flow check valves. And we have also developed check valves for sour service in accordance with NACE MR0175.Product nameCheck ValveWorking pressure2000-20000 PSINominal bore1 13/16"~7 1/16" (46mm~180mm)Working mediumoil,natural gas,mud and gas containing H2S,CO2Working temperature-46ºC-121ºCSpecification levelPSL 1- PSL4Performance requirementPR 1-2Material classAA,BB,CC,DD,EE,FF,HHManufacture standardAPI Spec 6AJiangsu Solid Machinery Manufacturing CO.LTD located in Jiangsu Huaian Industrial Park,Specialized in petroleum machinery production and manufacturing,focus itself on researching & developing ,manufacturing,sales and services.Our products cover in many fields,such as BOP,Manifold,Wellhead,Casing head,Tubing head,Gate valve,Flange,Nipple,Union and other wellhead spare parts.Advanced machining center and CNC lathes to ensure the precision of products,complete sets of testing equipment and advanced detection technology to ensure the good performance of the product,perfect quality management system to improve the fine quality of the product. Company uphold honesty,quality as the source,customer first business philosophy,to provide quality products and service for the customers,warmly welcome customers to cooperate with our company to create a better future./* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1