Mfr. For installation in vertical flow lines, we recommend to turn the counterweight 90 clockwise, so that, when the valve is ready for use, the counterweight or damper will be in horizontal position. A swing check valve will not work in this position as it will always be open and not doing its job. The most difficult flow direction to address is vertical flow down. Bronze Y-Pattern Swing Check Valves Y-pattern design permits easy maintenance. How does a Swing Check Valve work? Swing check valves are recommended for use in systems that use gate valves because of the low pressure drop across the valve. Exclusive: Disc shaft does not penetrate body. The Swing-Flex Check Valve is the valve of choice based on its simple maintenance-free design, low headloss and non-slam characteristics. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation more A check valve whose disc slides along the vertical centerline of the valve body. Mostly all pump discharge line check valves being used. All APCO Swing Check Valves (CVS-6000/6000A, CVS-250/250A and CVS-EDV) are used to prevent the back flow of fluid by closing before flow reversal, thereby preventing slam and water hammer. They have similar seating arrangements as globe valves. Item: 8 Inch Swing Check Valve: Certification: ISO9001,ISO14001,ISO18001,TS,CE,API: Brand: VERVO: Model number: H44Y-300LB-8INCH: Port Size: 8INCH/DN200: Structure type: Swing Check Valve: Pressure: 300LB: Temperature The bonnet is bolted to the body and sealed with Vertical check valves may be used for any application. A swing check valve is a valve that allows and stops liquid stream. Most commonly, lift check valves force the media to make a 90-degree turn, as seen in Figure 6. . The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. FREE delivery Oct 5 - 7. Lift check valves are suitable for installation in horizontal or vertical lines with upward flow. . Swing check valve used with ball, plug, gate, or diaphragm control valves. The seat opening cross-section may be perpendicular to the centerline between the two ports or at an angle. It depends on the pressure of the pipeline medium to open or close the valve. VERVO swing check valves are offered in bolted bonnet and welded bonnet design in a wide range of carbon, stainless steel, duplex stainless steel, alloy and other special materials. They are also commonly known as non-return valves and one-way valves. The hinge at the top of the disc allows this flapper to swing open when the media flows in the desired direction. For use in plumbing and heating applications. It stops any medium going through from streaming in reverse. These valves are typically used in sizes 2 inches and over. BACK TO BASICS: CHECK VALVE Internal sealing of the check valve disc and seat relies on "reverse" line pressure as opposed to the mechanical force used for on/off valves. An economic all stainless steel swing type check valves with PTFE seals suitable for steam, water and oil applications. Factory Directly Wholesale Line Blind Pressure Release Vertical Spring Steel Ansi Swing check valve 3/4" $2.40-$62.62 / Piece. They utilize a spring system which shuts the Disc closed when there is not enough pressure to hold it open by the operating fluid. Valve Size: 25NB TO 400NB. Material: MS/CS/SS304/SS316. A basic swing Check valve consists of a valve body, a bonnet, and a disk that is connected to a hinge. Because of this, it allows for extremely low head loss. It can be divided into single valve type , Double valve . PN 10-16-25 DN 50250 FIG. There are a few different check valve designs, including swing check valves and spring-loaded poppet-style check valves. The valve is composed of a disk and hinge which are suspended from the body by a hinge pin. Valve Size: 0.7500 to 1.5 inch. Since spring check valves are functional in vertical applications, they offer significantly more versatility than swing check valves, and are much more likely to fit with preexisting piping configurations. Click to Access Our Installation Manual APCO Swing Check Valves have been successfully installed in clean and dirty applications including sewage treatment, water treatment, water distribution . The force from the pump pushes the valve open, and then gravity will close the valve as the pump stops. The vertical lift check valve is designed to work automatically on flow that is traveling in an upward direction only. But because of the long stroke and inertia of the disc, the traditional swing check valve may slam in vertical pipe installations. The disk swings away from the valve-seat to allow flow in the forward direction, and returns to valve-seat when upstream flow is stopped, to prevent backflow. Read our article on swing check valves for more information. The disk inside is responsible for swinging open when water is exiting and then closing once all the water has passed. BTW Taco and Grundfos both make circulators with internal check valves. The disc in a swing type Check valve is unguided as it fully opens or closes. Description Datasheet. Swing type wafer check valves These are similar to the standard swing check valves, but do not have the full-bodied arrangement, instead, when the valve opens, the flap is forced into the top of the pipeline. Libra Supply 4 inch Brass Swing IPS Threaded Check Valve, (Click in for more size options), 4-inch, 4'' Swing Check Valve, IPS Tread, 200 WOG Residential and Commerical. These flanged vertical check valve are ideal for metering control. The valve's smooth, unrestricted full flow design makes it an excellent choice for slurries and sludge, even in vertical flow up applications. The conventional swing check valve serves as one of the more widely recognized check valve varieties. Catalog numbers: A-2600-6-01BB flanged ends, with bronze disc facing; A-2602-6-01B1 flanged ends, with rubber disc facing; Specifications: . 5. It can be used not only for horizontal piping, but also for vertical piping (flowing from bottom to top). Similar to the horizontal lift check, vertical lift check valves use a disc or ball that raises off the seat when a commodity flows upward through . In swing check valves, a flapper will swing away to allow forward flow of a fluid or gas. a spring-loaded piston check can be vertical-flow up, vertical-flow . If you are installing your swing check valve on a horizontal pipeline, place it in the appropriate direction. These NRV Non Return Valves are Bolted Cover Design, with Straight Type Body with Flanged ends and Screwed Ends. swing check valve How swing check valve is installed? . Check valves are normally designed for horizontal flow condition, but can also be installed in vertical pipeline, but in vertical pipeline, the flow shall be in upwards direction and under the disc. The check valve is recommended for automatic fire sprinkler systems and is UL/ULC listed and FM approved. Product Features: Swing Check valves prevent reversal of flow through pipe lines. $14.60 Stainless Steel Vertical and Swing Check Valves Check valves are a device used to prevent backflow of water, gas, fuel, or other media in a system. Swing Check Valves. The swing check valve has a hinge mechanism and a valve disc like a door that rests freely on the inclined . Order) CN Ningbo . Rotary Kai type check valve is mounted vertically on a horizontal pipe, used when the ships are fully opened. Unl ike most conventional check valves, Bray/Rite wafer combination swing check valves are ideal for both horizontal and vertical pipeline installation - requiring only a single line for operation. Check valves, also referred to as non-return valves are used to allow flow in one direction and prevent the flow in the opposite direction. Bolted . DN400 Swing Check Valve API6D 16INCH Check Valve CL600 RTJ Flange CF8M Full Bore NRV Vertical SS Swing Check Valve. The swing check valves with counterweight or damper can be applied for both horizontal and vertical installations. Figure 7 shows an example of a swing check valve. Swing check valves can be installed in both horizontal and vertical position. They are recommended for applications where the reversal of flow is not so frequent, to prevent "valve chattering". 2,960/ Piece Get Latest Price. Check valves are piped in-line to ensure the flow direction in water and gas applications to prevent backflow in a piping system. This valve is not recommended for wastewater applications because pins that extend into flow stream tend to collect debris. They differ from common swing checks in that the check is weighted. Standards of Manufacture; Features; Materials; Corrosion Protection; Certificates; Applications; Testing; EN 1074-3 CHECK VALVES EN 1092-2 DRILLING FLANGES. Lift check valve have have vertical and horizontal both type of design to suit as per line. At the point when the liquid streams forward, the plate slides from the valve seat, and when the stream is stopped, it gets back to the valve seat. Item #. Long Description: Size Range: Check Valve, Cast Iron, ANSI Class 125, Full Body Swing Check (with weight/lever) 2" ~ 12". Installation and Uses of Swing Check Valve 1. Its dome-shaped disc with a central pivot point allows the valve to close faster than a top-hinged one. Swing Check Valve Product Overview Available in sizes 2" - 48" Ductile Iron Construction for 250 PSI service 100% Flow area Energy efficient Fusion Bonded Epoxy - interior and exterior Full Domed Access Cover with Vent Port Side or Bottom Mounted Oil Cushions available Closure Options: Lever & Weight, Air Cushion, Lever & Spring Stockham Swing Check Cast Spec Sheet. Swing check valve, also known as check (flow) valve, is an automatic valve used on one-way flow pipelines to prevent the medium from flowing back. 125. The lip will seal water tight when closed by closing up against a rubber pad. The difference between the tilted disc check valve and the traditional swing check valve is that flow is allowed to pass on both sides of the disc. The guide keeps the disc in a vertical line to be re-seated with the correct alignment and seal. MSS SP-61 "Pressure Testing of Steel Valves," published by the Manu- Cast Iron A125 Class B. The valves wafer-like profile makes it a great choice for systems requiring short takeout lengths. For vertical or horizontal installation; O-ring sealed stuffing box; Vertical API6D Swing Check Valve 8 Inch Dn200 300 Lb Carbon Steel Wcb Full Bore Check Valve 8 Swing Check Valve. The weight of the disc and the return flow has an impact on the shut-off characteristics of the valve. Figure 7: Swing check valve. Connection designed for ASME B16.1, Class 125, and B16.5, Class 150 Flanges. Like swing check valves, wafer check valves are comprised of a disc and a seating arrangement. The check valve cannot be used in vertical applications as gravity may affect the function of the swinging motion. Part #. Swing Check Valves are Suitable for Horizontal flow or Vertical flow flowing from bottom to (Fluid Flowing Upward) Pipe Layouts. They are recommended for use with steam, air, gas, water, and on vapor lines . These valves are therefore sometimes outfitted with a lever . Horizontal / Vertical Installation. Usage/Application: Industrial. Re: vertical check valves? They are low cost, and have low head loss characteristics when fully open. They offer low resistance to flow and are particularly suited to low velocity service. Main features of AVK ball check valves Self-cleaning construction Full and smooth bore ensures low head loss Tightness at minimum back pressure Polyurethane balls available for abrasive media Different ball weights available In ductile iron or acid-resistant stainless steel Available up to DN 600 Typical challenges are solved with another ball 17. If you are installing your swing check valve on a vertical pipeline, make sure the flow arrow is pointing up. 2. One end of a disc-shaped disc is made into a "wing-type" structure, which is free to move by hanging on a body, etc., and has a structure in which pressure loss is small and fluid flows easily. Swing Check Valve The most common type of check valve is a swing check valve. Flomatic offer several different type of swing check valves for water and wastewater applications. Meet MSS SP-80 standards. The swing check valve is suitable for large diameter pipelines. Note: Not for use with reciprocating air compressor service. Two NPT plugs secure the hinge pin in a hole drilled through the body. A swing check valve is the most common one that you will see for Sump applications. Features and benefits. What you need is a flow check valve, either vertical or horizontal. Sizes NPS 2-6 (DN 50-150 . Design & Manufactured to API 6D, BS1868, or ASME B16.34; Face to Face Dimensions to ASME B16.10; UL / FM at 350 psi, the highest rated pressure in the industry. Closure response of swing check valve is slower compared to lift check valve due to longer disc travel and inertia of disk. Maximum Pressure: 400psi (27.6 bar) WOG (non-shock) @ -20F to 100F (-29C to 38C) and 150psi (11 bar) WSP @ 366F (186C). The swing check valve functions by allowing flow forces to move the closure element, it is a Weight: 129.9999 lb. Rotary Kai type check valve should be installed on a priority level of Official Road, may be mounted in a vertical pipe bottom-up medium flow pipe. Sku: 15-SF-U05. This quicker closing helps to reduce water hammer during reverse flow conditions. A lift check valve is commonly used in piping systems in which globe valves are being used as a flow control valve. Swing check valves, having 6 diameters of straight lengths of pipe upstream and 3 diameters downstream, are suitable for velocities up to 3 metres / second. Nivz Flanged End, 150# & 300# Check Valves are Swing Check type and the 800# class check valves are Piston Type Lift Check . The design allows the clapper to swing freely from the fully closed position to the fully opened position and back. Below is a comparison between different valve styles, assuming all valves are 100% open. When material flows in one direction, the flow lifts the disc from the seating . A round ball can be used for the disc of a high-pressure small diameter check valve. A lift check valve can only be installed on a horizontal pipeline. Applications Gas and liquids pipelines Field gathering systems Wellhead injection lines Gas export facilities Product tank farms Pulp and paper mills Mining Chemical processing Working principle diagram of swing check valve. Body and cover: Precision machined castings. The seating in this valve is either metal-to-metal or metal seat to composition disk. A swing check valve is mounted with a disc that swings on a hinge or shaft. The valve Vendor: Stockham. . It operates by gravity. Some valves can be installed horizontally, but only if the product clearly specs that as a . Swing checks may be installed in horizontal positions (or vertical with flow moving up). Lift Type Check Valve Bolted Cover, Are Only Suitable for Horizontal Line. Vertical or Horizontal Installation. The swing check valves can be installed on a horizontal pipeline with the body vertical or they may be installed on vertical piping as long as the flow arrow on the body points upward Non-shock Not for use at or below ground level Lead-Free Lead Law Compliant Documents Specification Warranty Specifications ANSI Specifications: ANSI 372, ANSI 61 Description A swing check valve is a check valve in which the disc swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. Series 600-Z3 silent check valves have a low pressure drop and can be installed in a horizontal or vertical position. 4035084. The swinging action of the disc away from the seat allows forward flow and when the flow is stopped, the disc returns to the seat, preventing backflow. They are unidirectional, allowing media to flow in one direction only. 3. SWING CHECK VALVE DESCRIPTION Swing check valves, like all check valves, are used to prevent back flow in the line. Small Business. The design of disc check valves allows them to be installed in any position, including vertical pipelines where the fluid flows downwards. Explore efficient flanged vertical check valve at Alibaba.com for controlling liquid flow at an injection point. Valve Type: Check Valves. If the fluid is flowing in a forwarding direction, the end of the soft tube changes its shape into the diverging type and allowing the fluid to pass easily. $216.17 $ 216. Check valve can also be used for the pipelines which is used to supply provision for the auxiliary system whose pressure may exceed the system pressure. Small Business. Water Service In-Line Forged Brass Check Valve with Press Ends. EACH. UL / FM / AWWA C508 Swing Check Valve. Look on your valve for an arrow that indicates the direction of flow. 1.0 Pieces (Min. 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