Manufacturer of dual plate check valve ci dual plate check valve dn 50, ci dual plate check valve dn 65, ci dual plate check valve pn 16 dn 80 and ci dual plate check valve dn 100 offered by. Being light in weight, is more rigid than the standard swing type check valve, which needs expensive foundation and special supports. Their swing radius is one half that of the conventional check valves. Dual plate check valve range type bsr type bwr type bwa type bhr goodwin international is the market leader in the design and manufacture of dual plate check valves for use in the worlds hydrocarbon, energy and process industries. All features put together make the dual plate check valve one of the. Advance valves has been a pioneer in manufacturing dual plate check valves with a global supply footprint. Flovel is a dedicated manufacturer of specialized check valves, specifically nonreturn valves, since 1984. Comparing dual plate and swing check valves and the importance of minimum flow for dual plate check valves article pdf available october 2018 with 4,629 reads how we measure reads. Dual plate check valve dual plate check valve technical data dimensions. Dual plate check valve with seat made of nitrile ht ksb code k or epdm ksb code x part no. The quality level of our valves and services is demonstrated with the certificates of iso9001, api6d, api spec q1, ce. Description dn materials ksb code 478 spring righthand 50300 stainless steel 316 dual plate check valve with seat made of viton ksb code v or metalseated ksb code m. For horizontal flow application, valve must be with the disc hinge pin in the vertical position to insure proper operation. Check valve installation and piping design guidelines webinar duration.
It is fitted to ensure that a medium flows through a pipe in the right direction, where pressure conditions may otherwise cause. Sizes, pressure classes and design availability to meet all requirements you need for your applications. The plates of the check valve open when for example the pump is started and. Dualplate check valve welco valve company provides dual plate check valves with spring loaded, can significantly reduce water hammer. The internal retention method does not encroach on the gasket sealing surface, and therefore, the velan design maximizes the flow path area through the valve with a lower pressure drop. Duochek high performance nonslam check valves crane. Manufactured under the supervision of experienced professionals, using high grade raw materials and modern technology, this dual check valve is quiet preferred in the market. Print this page bookmark this email us pdf download. Flovels dualplate check valves are established for uses with petrochemicals.
Dualplate check valve with seat made of nitrile ht ksb code k or epdm ksb code x part no. Is there a difference between nonreturn valves nrvs and. The leading edge distance from open to closed position is halved, in turn reducing the travel time by 50%. Patented slim plate design giving improved flow efficiencies and superior metaltometal seating shutoff. Wafer type design, to take lesser space than the conventional check valve. This reduces and overcomes the frictional coefficient due to one plate resting upon another. To read the pressure drop for other fluids the equivalent water volume flowrate must be calculated and used in the graph v. The dual plate check valve employs two springloaded plates hinged on a central hinge pin. Seat in epdm or viton other dimensionsmaterials on request max workingpressure mpa 80 oc weight mpa kg 110 oc 1 body nodular cast iron ggg40. Copy of dual plate check valve pressure test youtube. This valve is mainly suitable for urban, industrial and.
Description dn materials ksb code 478 spring righthand 50600 stainless steel 316 479 spring left. Retainerless dual plate check valves for a broad range of applications. Check valve dual plate check valve wafer type dual plate. Dual plate wafer check valve the short facetoface design makes dual plate check valves more compact and lighter, providing easy installation and less expensive costs than conventional swing check valves. Check valve dual plate check valve wafer type dual.
Dualplate check valve with seat made of viton ksb code v or metalseated ksb code m part no. With a track record of supply spanning over 30 years, goodwin has developed an enviable. Belgicast dual plate check valves are a perfect choice for desalination plants. Double disc check valves are mainly used for the pipelines which medium is oneway flow, only allowing medium to flow in one direction, in order to prevent accidents. Dual plate check valve ci dual plate check valve dn 50. Duochek high performance nonslam check valves are the original mission manufacturing company wafer check valves introduced to the market in the late 50s. Retainerless dualplate check valves for a broad range of applications. Discocheck dualplate check valves bb short overall length according to din en 5581, table 11, series 16 din 3202, part 3, series k3 pressure drop chart the curves given in the chart are valid for water at 20c. Order now for highquality check valve from cana west technologies inc. Dual plate check valve check valve supplier in canada. Energy saved cv value the curves show pressure drops available with standard torque springs and the dual plate check. They are widely used in water source projects, urban water supply and drainage, sewage treatment, electric power,petroleum, petrochemical, heat supply and metallurgy industries etc. The abacus twin plate check valve works on the following principle.
Dual plate wafer check valve iron and cast steel advantages of design the main purpose of the dual plate wafer check valve is to perform the work of almost any conventional valve. Dual plate wafer check valve the short facetoface design makes dual plate check valves more compact and lighter, providing easy installation and less expensive costs than conventional swing. Size 2 to 40 asme pressure class 150 up to 1500 api 6d and api 598 pressure classes wafer, lug, double flanged and extended body design. Api 594 dual plate check valve api 6d axiai flow check. Rubber to metal bonding abacus valves wafer check valves. Dual plate check valves for petrochemicals, refineries, oil. Wafer, flanged, solid lug, buttweld end, hub end, and in an extensive range of sizes, pressure.
Manufacturer of dual plate check valve ci dual plate check valve dn 50, ci dual plate check valve dn 65, ci dual plate check valve pn 16 dn 80 and ci dual plate check valve dn 100 offered by amco industrial valves, chennai, tamil nadu. If removal of check valve is required for inspection, please follow these steps. Jul 27, 2017 dual plate check valve welco valve company provides dual plate check valves with spring loaded, can significantly reduce water hammer. Dual plate check valves, reduced size and high performance valves, suitable for use in fire prevention, air conditioning facilities, irrigation and water supplying.
Retainerless valves for critical applications without pin retainer. Check valves in a variety of designs such as swing check, lift check, ball check, dual plate check, and single plate check. Abacus valves has over twenty years experience in mechanically bonding elastomers to metals. Check valves are also known as oneway valves that allow the flow of the fluid in only one direction. Dual plate check valve construction and technical information corporate office phone email website works phone. In the mid 1970s, southern california valve entered the valve manufacturing industry, primarily serving the power industry. Alibaba manufacturer directory suppliers, manufacturers. Dual plate check valve lvsa group pty ltd pipes, valves. Dual plate check valve is an allpurpose check valve nrv. Separate springs are provided for each door to close. When the flow decreases, the plates close by torsion spring action without requiring reverse flow. Titan fci dual plate check valves are designed to provide troublefree service and seldom require maintenance. Dual plate check valve types 1 on occasions, for technical or delivery reasons, goodwin may offer valves with retainers. This design offers the twin advantages of no water hammer and non slam simultaneously.
This design is standard on all ansi series 125lb through 2500lb valves. Short overall length according to din en 5581, table 11, series 16. Sant dual plate check valves can be installed between standard flanges in the horizontal or in the vertical flowup position. Check valves excess flow check valves manufacturer from. A process of surface preparation, raw material selection, temperature control, time critical load application and post cure has been mastered for industry standard elastomers such as viton fluoroelastomer, nitrile bunan and epdm. However, being smaller makes it lighter and, therefore, is more cost efficient to purchase, install and maintain. The dual plate check valve employs twospring loaded plates hinged on a central hinge pin. In such instances, this will be clearly indicated in the quotation. Since that time, southern california valve has expanded their products to cover a broad range of valves. Technical information pressure drop information valve life vs.
This valve is mainly suitable for urban, industrial and high. We have been supplying special facetoface dimensions for dual plate check valves in double flanged construction for the smallersized valve where it is not possible to accommodate two flanges within api 594 dimensions for these sizes and ratings. In order to cater the variegated demands of our clients, we are offering an excellent quality range of dual plate check valves. Design feature dual plate check valve 7 neway series sbn check valve has a shorter facetoface dimension and dual plate design, the end connection options include wafer type, lug type and doubleflange type, and are available in size from 2 to 60 and in pressure ratings from asme class 150 through 2500. A nonreturn valve allows the flow of fluid in only one direction. Ritag wafer type check valves wafer type lift check valves sr, wafer type swing check valves zrk, dual plate check valves zrd for industrial.
Selfseating design that reduces dragging along the seat surfaces. Description dn materials ksb code 478 spring righthand 50600 stainless steel 316 479 spring lefthand 400, 500 and 600 stainless steel 316 dual plate check valve with seat made of viton ksb code v or metalseated ksb code m. The flow of water through a valve at 60f in us gallonsminute usgpm with a pressure drop of. Manufacturers of dual plate check valve g m engineering. We have been supplying special facetoface dimensions for dual plate check valves in. A process of surface preparation, raw material selection, temperature control.
Pdf comparing dual plate and swing check valves and the. For horizontal flow application, valve must be with the disc hinge. The dual plate check valve 805 is suitable for applications as pumping, water supply, general industry. Swing, lift and wafer dual plate check valve manufacturers and. Dual plate check valve wafer type check valve products. Available in casting a216 wcb, wc6, wc9, a350 lcb, a351 cf8, cf8m, cf3, cf3m, a995 4a, a995 5a, a995 6a, alloy 20, monel, inconel, hastelloy. The dual plate check valve is a multipurpose valve that is stronger, lighter and smaller compared to conventional swing check or lift check valves. The dual plate check valve is simple in configuration, shorter in facetoface dimension and convenient in installation and maintenance.
It takes a minimum occupation of space and causes very low head loss. Description dn materials ksb code 478 spring righthand 50300 inconel 600 2 can be used for. Dual plate check valve 805 pumping, water distribution, general industry this dual plate check valve can be installed in two operating positions. Other retainerless dualplate check valve designs have a. The internal retention method does not encroach on the gasket sealing surface, and therefore, the velan. Since that time, southern california valve has expanded their products to cover a. You have clicked a page that seems to be very popular.
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