Johnson Valves offer wafer disc type check valves manufactured with brass, stainless steel and bronze bodies with metal, EPDM, NBR, Viton and PTFE seats and seals to cover a wide range of duties.
Abacus Valves was established in 1988 to manufacture and supply wafer check valves to the process industry. Since then the company has grown consistently through our ability to understand and meet the customer's needs, cost effectively…
The Single Disc Check Valve (Wafer Type Single Disc Check Valve) consists of four main components: the body, a disc, a star guide and a spring. The Disc check valves are opened by the pressure of fluid and closed through compression spring as soon as flow stops thus preventing reverse flow.
Johnson Valves offer spring loaded check valves and spring assisted check valves. Our range includes in-line, disc, duel plate, double and swing type for a wide variety of duties and applications.
GPV® Wafer Check Valves feature an in-line spring assisted design to prevent flow reversal for liquids and gases. The edge guided disc and center guided stem ensure that the soft seated disc will always find its home and provide bubble tight shutoff while the 316 stainless steel construction provides superior corrosion protection.
Dual Disc® Check Valves The Dual Disc® Check Valve with its compact wafer design and low cost have made it a popular choice when space and price are major factors in valve selection. The compact design features non-slam spring-assisted closing.
Lightweight, wafer type check valve with face-to-face dimensions according ISO 5752, table 5 long; High flow capacity featuring a special shaped disc with a large opening angle resulting in high Kv values; Spring loaded disc for positive shut-off; Choice of cast iron or stainless steel body types; Field replaceable O-ring seat
Get Your Backflow in Check. When a check valve is needed to prevent backflow, NIBCO has a complete line-up, including the NIBCO ® Ring Check ® with self-closing disc, horizontal swing, sliding disc, silent check and Y pattern. Ask us how to spec the right check valve, or get catalogs, chemical resistance guides and submittals.
A ball check valve is a check valve in which the closing member, the movable part to block the flow, is a ball. In some ball check valves, the ball is spring-loaded to help keep it shut.For those designs without a spring, reverse flow is required to move the ball toward the seat and create a seal.
CVXXK Split-disc Check Valve. Split disc wafer check valve with lowest pressure drop • For all water systems • 2" through 20" • Activated at 1/4-1/2 psi • Cast iron body and stainless steel discs • Shortest possible face-to-face
Wafer Check Valve. MVS single plate swing type wafer check valve comes with a short pattern sandwich type flangeless wafer body conforming to the API 6D and ASME B 16.10 face to face dimensions. The valve has a simple but reliable and robust construction. The wafer check valve is ideal for pump discharge duties. The eccentric mounted hinge pin ...
Therefore, a wafer check valve that can fit easily between flange rims in large plumbing or piping systems is a very useful thing. A wafer check valve may be a swing-type, which uses a single hinged disk as its moving element, or a split disc type, which consists of a flat disc that is hinged in its center in order to collapse inward.
Disc Check Valves are designed to be sandwiched between flanges i.e. wafer type. They are suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate systems etc. Face-to-face dimensions conform to EN 558 part 2, series 52.
These valves ensure free flow through the valve and prevent clogging when the valve is in close position. Jacketed Valve generally use in application of Bitumen/Asphalt/Coaltar, Sulfur/Sulphur, Lactum, Wax, Chocolate, Soap, Organic Chemical, Paint. The type of valve have minimum 02 Nos. of Coupling or Flange Connection for hot media in out ...
Wafer Double Disc Check Valve APPLICATIONS Liquid or gas where protection from flow reversal in a pipeline is required. CONSTRUCTION The Keckley Wafer Double Disc Check Valves are constructed from rugged castings that are machined to exacting specifications. Reference individual technical data pages for standard disc, shaft, spring, and
Because wafer check valves are flanged in place, there isn't much room for the disc to open in the pipe line. That means flow is often restricted with a wafer check valve. Swing check valves on the other hand, have a molded body that creates room for the disc to swing open fully, thus allowing full flow.
Henry Pratt Company has a full line of check valves including: swing check, spring loaded, double disc, globe, compact wafer-silent, wafer, flexible disc, tilted disc, and rubber flapper.Selection Chart
A Dual Plate Wafer Check Valve is defined as a mechanical device that allows a one directional fluid's flow. Dual Plate Wafer Check Valves work through a disc with a spring that opens when the fluid flows in regular direction; and, when the fluid returns, the spring closes the disc …
Keystone swing type wafer check valve Figure 86 high capacity, spring loaded swing type wafer check valve Features • lightweight, wafer type check valve with face-to-face dimensions according isO 5752, table 5 long • high flow capacity featuring a special shaped disc with a large opening angle resulting in high kv values • spring loaded ...
Champion Valves is dedicated to meeting your needs with a complete range of high-quality and competitively priced check valves; including: Dual Disc, Single Disc, Silent Check, Nozzle Check, and other Industrial Wafer Check Valves.
Mueller Canada offers several types of check valves including: swing check, spring loaded, and flexible disc. For additional types of check valves, please visit or Line Catalog
Keckley cast iron wafer body double disc check valves have pin retainer holes in the body where plugs are inserted to hold the hinge pin and stop pin in place. Keckley offers a retainerless wafer body design in bronze, carbon steel, stainless steel, and other specially cast alloys.
the check valve will close and the distance it has to travel to close. Features like Titan's independent torsion springs on large double disk check valves allow the valves to respond quickly to fluctuations in pipeline flow. As illustrated below, because a center guided check valve that is almost closed will only have a small amount
Wafer check valves have a solid thermoplastic body with a very thin "wafer" profile that makes them an ideal check valve for applications that require valves with short takeout lengths. Similar in operation to a swing check valve, the wafer check has a solid thermoplastic disc and seat arrangement that performs the check action.
A check valve is a backflow prevention device: it allows flow in only one direction. The pressure of forward fluid flow opens the valve disc and the pressure from backflow closes it, forcing the disc against the valve seat. Three types of check valves are available to achieve this checking effect.
Cast Iron Check Valves. Cast Iron Check Valves for use in commercial and industrial applications. Typical services include: hot and cold water, HVAC, steam, gas and other general utility services. 3% Nickel services the pulp and paper industry.
Spring Loaded Disc-type Check Valves. The spring and disc construction allows the valve to open at the slightest pressure differential, and the valve seat provides an extremely tight seal. The valve closes the instant backpressure exceeds line pressure.
DD-SW DOUBLE DISC WAFER SS CHECK VALVE . The DD-SW stainless steel body, double disc swing check valves use spring assisted half-discs. The wafer style body design is compact, and is available in 150#, 300#, 600#, and 900# classes. It is suitable for …
DISC CHECK VALVE. The Single Disc Check Valve (Wafer Type Disc Check Valve) consists of four main components: the body, a disc, a star guide and a spring. The Disc check valves are opened by the pressure of fluid and closed through compression spring as …