{"product_id":"vertical-check-valve-4x22-female-npt-wog1000-spring-loaded-all-metal-304-stainless-steel-parts-ptfe-seals-serviceable-2-pi","title":"Vertical Check Valve, 4x22 Female NPT, Spring Loaded, All Metal 304 Stainless Steel, PTFE Seals T794","description":"Stainless Steel Check Valves Highly Corrosion Resistant with PTFE Seals by Duda Energy Check valves are used to help direct flow in one direction. The stainless steel bodies and PTFE seals are highly corrosion resistant allowing these check valves to be used with a wide variety of fluids including, but not limited to water, oil, gas, air, light alkali's, acids, biodiesel, fuels and alcohols. Swing check valves are for horizontal use only. When fluid pushes on the stopper in the correct direction, it will 'swing' open to allow flow. If flow moves in the opposite direction, it will swing shut. The check valve cannot be used in vertical applications as gravity may affect the function of the swinging motion. Vertical check valves may be used for any application. They utilize a spring system which shuts the Disc closed when there is not enough pressure to hold it open by the operating fluid. Fluid pressure in the backwards direction will cause the valve to close to prevent backflow. Note: Check valves do not create a 100% seal against backflow like a ball valve would. If prevention of backflow is desired, two check valves should be used in series with each other. Any fluid which finds its way past the first check valve is unlikely to have enough pressure to pass through the 2nd. They may be opened by unthreading at one of the port ends. General Specifications for Check Valves Type Swing Vertical Fluid Media Water, Oil, Biodiesel, Air \u0026amp; Other Fluids Orientation Horizontal Horizontal \u0026amp; Vertical Max Working Temperature -29掳C to 150掳C (-20掳F to 302掳F) Nominal Working Pressure 200 Psi 1000 Psi Shell Test Pressure 2.1 Mpa (305 psi) 10.4 Mpa (1500 psi) Tightness Test Pressure 1.6 Mpa (232 psi) 7.6 Mpa (1100 psi) Gas Tightness Test Pressure 0.4~0.7 Mpa (58~100 psi) Port Types: Female NPT x Female NPT Swing Check Valve Material Types Part Identification Material 1. Bonnet 304 Stainless Steel \/ CF8 2. Seal Ring PTFE (Teflon) 3. Body 304 Stainless Steel \/ CF8 4. Pin 5. Nut 6. Seal Ring PTFE (Teflon) 7. Disc 304 Stainless Steel \/ CF8 Vertical Check Valve Material Types Part Identification Material 1. Seal Ring PTFE (Teflon) 2. Bonnet 304 Stainless Steel \/ CF8 3. Spring 4. Disc","brand":"My Store","offers":[{"title":"Default Title","offer_id":52355731751208,"sku":"P353529693716222471","price":34.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/1267\/0760\/files\/4562af3a6bbe93e13f377ca70502188bce8d6f6152253a89c63c09f7dc4a71bb.jpg?v=1788924423","url":"https:\/\/rocvemira.shop\/products\/vertical-check-valve-4x22-female-npt-wog1000-spring-loaded-all-metal-304-stainless-steel-parts-ptfe-seals-serviceable-2-pi","provider":"My Store","version":"1.0","type":"link"}