Design: BS 5153, DIN3352. Face to Face: BS EN 558-1, DIN3202-F6. Flange: BS EN 1092-2. Size: DN40-DN600. Working pressure: PN10/PN16. Working Temperature: -40centigrade degree - 225centigrade degree. Suitable Medium: Water, Oil, Steam. Material: ductile cast iron, Cast Steel, Stainle.
Trim : 13% Cr. / SS 304 / SS 316 / SS 304 L / SS 316 L / Alloy 20 Class 150# : Size 2” – 28” Class 300# : Size 2” – 20” Class 600# : Size 2” – 16” Class 900# : Size 2” – 10” Class 1500# : Size 2” – 8”
Technical Specification: Check valves (also known as Non return Valves) are Automatic valves that prevent a return or reverse flow of the process. Check valves are used for two main purposes: First, to prevent back flow, and second, to maintain pressure. Material: Construction: AISI 304, AISI 316 & AISI 316L. Sizes: From 1" to 4" (25mm to 100 mm) Standards: Unions End Connections with SMS/IDF & DIN.. Quality Tests: tests & Pressure Tests.
Globe Valves are extensively used through-out the Refineries,Hydrocarbon,Energy and process & the power industries. Size: 2" up to 24" (DN 50 up to DN 600) Pressure Rating: ASME 150# to 2500# Materials: Carbon Steels, Low Temperature Carbon Steel, Martensitic Steels, Austenitic Stainless Steel, Duplex Stainless Steels, Super Duplex Stainless Steels, Nickel Alloys, Nickel Aluminum Bronze, Hastelloy, Inconel, Titanium Alloy & Carbon Steel with Internal Corrosion Resistant Alloy (CRA) Overlay Design Standard: BS 1873, API 623 Pressure / Temperature Rating: ASME B 16.34 Test (Inspection) Standard: API 598,ISO 5208,BS 6364 Construction Details: Bolted Bonnet / Pressure Seal Bonnet, OS & Y Type Rising Stem End Connection: Flanged,Butt-Weld Operator / Actuator: Handwheel Gear, Actuator (Pneumatic, Hydraulic, Electro-Hydraulic and Electric Motorised) Cryogenic Service: Globe Valves can be designed in a special version suitable for cryogenic service. In this case, all the materials and technical features are designed to withstand minimum design temperature required by the Customer, down to Cryogenic -196'C. If required by the customer, specific Cryogenic Tests are performed to verify the behaviour of production valves in terms of valve torque, sealing capability, emissions vs the ambient
Check valves are basically the type of valves which prevent the backflow of the fluid or gas traveling through that specific pipeline. The liquids or gases flowing through non-return valves flow in single direction mainly. These poppet check valves consist of two openings which mainly allows the fluid or gas to enter from one end and leave from the other end. If the flow turns and no check valve is installed, water hammer can occur. Water hammer often occurs with an extreme force and will easily damage a pipeline or components. Check valves are used in many different applications. For example they are often placed on the outlet side of a pump, to protect the pump from backflow. Centrifugal pumps are not self-priming, and therefore check valves are essential for keeping water in the pipes. Also, check valves are very often used in HVAC-systems (Heating, Ventilating and Air Conditioning-systems).
Why are check valves important? What is the purpose of the check valve? If you need fluid to flow through a pipe in one direction, you can't do without them. Check valves are designed with a two-way system with openings that allow fluid to pass through. After the flow has passed, the valve closes to prevent backflow. Check valves can also close automatically if downstream pressure is excessive. Common uses of check valves: Water and waste pumping systems Water pipe Sewage treatment system Heating system Fire hose Marine and naval industries Oil and gas pipelines Flush toilet device There are many different types of check valves, including rotary check, lift check, piston check, and ball check.
What Is a Check Valve? Check valves are usually installed in the pipeline to prevent backflow. A check valve is basically a one-way valve in which the flow can flow freely in one direction, but if the flow turns, the valve will be closed to protect the piping, other valves, pumps, etc. If the flow is diverted without a check valve installed, a water hammer may occur. Water hammer often occurs with extreme force and can easily damage pipes or components. Check Valve Definition A check valve is a fundamental component in fluid systems, playing a crucial role in regulating the flow of liquids or gases. This simple yet essential device prevents backflow and maintains the desired direction of fluid movement. Understanding the function and types of check valves is essential for engineers, manufacturers, and anyone involved in fluid control systems. How Does a Check Valve Work? Check valves operate on a straightforward principle: allowing fluid to flow in one direction while preventing reverse flow. The valve consists of a movable mechanism, often a disk or a flap, and a body with an inlet and an outlet. When the fluid flows in the intended direction, the mechanism opens, enabling the fluid to pass through. However, when there is a reversal in flow, the mechanism closes, preventing the fluid from going backward.
We supply all kinds of valves(and related joints, flanges, nuts) with different material from China. Our website is www.py-valve.com Pls feel free to contact if you have any questions.
CHECK VALVE (NON RETURN VALVE): Feature Type : Bolted Cover, Swing Type, Lift Type, Wafer Type Design Disc : Composition Disc, Metallic Disc. Size Range : 15mm To 400mm & Above On Request Pressure Rating : 150#, 300#, 400#, 600#, 800#, 900#, 1500#. End Connection : Flanged Ends, Socket Weld Ends, Screwed Ends & Butt-Weld Ends. Mfg. Std. : BS-1868, API - 6D Testing : BS - 6755-1, API-6D Material Of Construction : Cast Carbon Steel (ASTM A 216 GR. WCB, ASTM A 217 GR. WC6, WC9), Forged Steel (ASTM A 105, ASTM A 182 GR. F22, F304, F316) Cast Stainless Steel (ASTM A 351 GR. CF8, CF8M, CF3, CF3M), Alloy 20 To ASTM A 351 GR. CN7M
Check Valve Features & Specialities Size Range - 1/2" to 32" Pressure Rating - 150#, 300#, 600#, 800#, 900#, 1500# Certifications - IBR, CE, Atex, etc. Swing Check, Lift Check & Dual Plate Check types available Inspected & Witnessed By third party agencies - API Valves, ATex Valves, CE Valves, Process Valves, Gas Valves, Water Valves, Cryogenic Service, Fire Safe
Check valve (non return valve): Feature type : bolted cover, swing type, lift type, wafer type design disc : composition disc, metallic disc. Size range : 15mm to 400mm & above on request pressure rating : 150#, 300#, 400#, 600#, 800#, 900#, 1500#. End connection : flanged ends, socket weld ends, screwed ends & butt-weld ends. Mfg. Std. : bs-1868, api - 6d testing : bs - 6755-1, api-6d Material of construction : cast carbon steel (astm a 216 gr. Wcb, astm a 217 gr. Wc6, wc9), forged steel (astm a 105, astm a 182 gr. F22, f304, f316) cast stainless steel (astm a 351 gr. Cf8, cf8m, cf3, cf3m), alloy 20 to astm a 351 gr. Cn7m
Check valve.
Check Valve Applications - Machine tools, Construction & heavy-duty industries - Shipbuilding equipments applications. Check valve is a mechanical device which is normally used to allow easy flow of fluid or gas to in a linear direction. All our products are built using high quality materials thus offering longer durability and efficiency. We are an ISO 9001 & 14001 certified company offering environment friendly products. Our aim is to set high standards in the valve manufacturing and supplying industry through continuous R&D and process improvement. Our grease valve fins application is various types of industries including heavy-duty operational enviromnets.
One of the biggest manufacturers and exporters of industrial valves and fittings, adopts the managing pattern of collectivization with many factories. It has many subsidiary companies and production bases in shanghai and zhejiang province. With its many offices throughout the country, it devotes to the manufacture, research and development of industrial valves, pipe fittings and sealing fittings. It places premium on the manufacture of the industrial valves that have advanced world levels, and it also supplies comprehensive project solutions for the industrial clients both at home and abroad. The abilities of production quality control and sustainable creativity has been recognized by many clients both at home and abroad. Industry packing
Check valve.
Check Valve Name: Duo-disc Wafer Check Valve Spec: Cast steel,Duo Disc,Wafer type,Lug Size: DN50-600/2"-24" Series: Check Valve Pressure: 1.0-10Mpa/150Lb-600Lb
Hydraulic powerpacks, cylinders, directional control valves, check valves, non return valves
Nominal Diameters:DN10~DN1000(3/8'-40'). Nominal Pressure:PN1.6~42.0Mpa( 150lb ~ 2500lb ). Materials: A105, LF2, F5, F11, F22, F304, F 304L , F316, F 316L , WCB, WC6, WC9, CF 8M , CF3, CF 3M etc.
Ansi class 150~300 Material: wcb, cf8, cf8m, cf3, cf3m Design std: ansi b16.34 End connection std: asme b16.11, asme b1.20.1, asme b16.25 Test std: api 598 In plywood cases
Check valve
