Series 240 wafer style check valve our industrial grade 304316 stainless steel swing check valve is designed for a flanged piping. The compact design features nonslam springassisted closing. Retainerless design is standard in all of our dual disc wafer check valves, including our cast iron check valves. This nonslam springassisted, centerguided, lugged pattern wafer check valve is designed to prevent water hammer and reverse flow.
Some of the most common areas of application are hot water plants, plants for water and waste water treatment, boilers and supply systems, energy pipe systems and process equipment for the chemical and petrochemical industries. Valves shall incorporate a single disc design suitable for either horizontal or vertical installations. In such a design, a wedge slides cross a general passageway in order to control fluid flow like a sliding gate hence, the name. Simply, some manufacturers drill four holes through the body of the check valve to facilitate installation of a hinge pin and stop pin. The valmatic silent check valve has been the preferred.
The model 888vfd is a patented silent wafer style check valve. Wafer and globe style valves are nsfansi 61 certified for drinking water. Product description, dimensions and specifications pdf. Specifyingkf check valves guarantees you a valve optimally designed for your application. A swing check valve or tilting disc check valve is a check valve in which the disc, the movable part to block the. Combine maximum safety, high flow efficiency and long service life emersons specialty check valves range includes models with a compact wafer style design and round unobstructed port able to tackle many tough applications and swing type wafer.
Stdapiipetro std bo7engl l777 m 0732290 05b529b too m foreword this standard is a purchase specification for butterfly valves designed for installation between flanges specified. Type a check valves are short facetoface as defined in table 2 and can be. This manual applies to the manual operation of the kitz wafer type check valves. The unique poppet design insures that the valve operates quietly and efficiently across a wide range of flow velocities. The overall installation length is much shorter than a traditional combination of a wafer style check valve, butterfly valve, and spool piece. Valves shall be wafer style conforming to asmeansi b16. Dual plate wafer check valve cast iron body, stainless steel plates to suit pn16 flanges pressure temperature fire protection centre a great deal to offer wrass pressure re mperature material list body disc seat hinge pin stop pin pin retainer spring washer gasket dimensions pn16 loacto cast iron stainless steel 304 epdm stainless steel 420.
The tom wheatley check valve is designed to facilitate pigging operations and to protect instrumentation on intelligent pigs. Browse w920wlf check valve lead free, class 125, wafer style, bunan seat in the nibco catalog including material number,upc code,valve size,connection type,description,turnsoperation. The wafer check valve is installed between regular pipe flanges. Ritag industrial valves for any application whether as a standard product or as a custom order. Process valves symbols icons for planners, designers and piping engineers. Xb series bonnetless globe valves discontinued dualplate check valves proquip wafer type pw dual. Hv066e1 wafer check valve contents 1 be sure to read the following description of our product warranty 1 2 general operating instructions 2 3 general instructions for transportation. Check valves are designed to pass flow in one direction with minimum resistance and to prevent reverse or back flow with minimal leakage.
Dual disc, single disc, silent check, nozzle check, and other industrial wafer check valves. Dimension b2 is the outside diameter for asme 150 flange drilling. Its design meets api 594 which is approximately one fourth the face to face dimension and 15% to 20% the weight, on most popular sizes, making them less expensive than a swing check valve. The wafer check valve provides closure by two semicircular doors, both hinged to a central post in a ringshaped body that is installed between flanges.
Where increased integrity is required the cv123 dual plate check valve can be provided with a. All wafer check valves shall be of solid thermoplastic construction, having no metal that. The tlw check valve tapped lug wafer was engineered for applications where exposed studs are not suitable. The edge guided disc and center guided stem ensure that the soft seated.
Valves shall be flanged, spigot, male threaded, grooved end or wafer. Wafer check operation and maintenance manual davis valve offers a wide range of double door wafer checks in cast iron, cast steel, stainless steel as well and steel and stainless alloys. Caution and warning to ensure safe and trouble free function and performance, please read all the. Kf check valves 3 wafer style check valves series 10 flangeless swing style long pattern check valves with internal spring assist. Ritepros brayrite wafer combination swing check valves are flow activated and rite sized. Davis valve offers a wide range of double door wafer checks in cast iron, cast steel, stainless steel as well and steel and stainless alloys. Keystone swing type wafer check valve figure 86 dimensions mm size dn a b pn10pn16 b1 b2 c d e q mass kg note dimension b is the outside diameter for iso pn 10pn 16 flange. The valve is not designed to handle any kind of impact. W920wlf check valve leadfree, class 125, wafer style. When a check valve is needed to prevent backflow, nibco has a complete lineup, including the nibco ring check with selfclosing disc, horizontal swing, sliding disc, silent check and y pattern. Wafer body double disc check valves keckley company.
Cvc ductile iron wafer style check valve matconorca. The duochek wafer valve design is generally stronger, lighter, smaller, more efficient and less expensive than conventional swing check valves. Single disc spring loaded wafer check valves features light weight,versatile design 80% to 90% less than conventional fullbody swing check valves single disc opening single integrated armdisc assembly springloaded disc calculated to increase the responsiveness of the disc elastomer oring seat. Valtorc wafer check valves are offered up to sizes 48 in manual mode. Wafer check 1500 certifications iso certified nace approved manufactured to the api6d standard. Keystone swing type wafer check valve figure 86 dimensions mm size dn a b pn10pn16 b1 b2 c d e q mass kg note dimension b is the outside diameter for iso pn 10pn 16 flange drilling. Kf check valves are not intended for pulsating, reciprocating service except for the series 50 piston check valve. Dynamic check valve tests show that surge pressure is significantly reduced when a silent check valve is used.
Wafer flanged body double disc check valve sizes 8 48 asme body classes 150 900 bronze, nickel aluminum bronze, carbon steel, and 316 stainless steel style cw wafer silent check valve sizes 2 12 asme body classes 125 300 cast iron, carbon steel, and 316 stainless steel style cg globe silent check valve. Keep this manual in a place accessible to the operator. Ensure that employees read and observe this manual and other. That means when you order checkall valve products you are assured of receiving the highest quality check valves. Inch dimensions were converted from common to twoplace decimal fractions. Dl wafer lug body double disc check valve hs horizontal swing check valve df wafer double flange body double disc check valve sp short pattern wafer check valve cw wafer center guided silent check valve lp long pattern wafer check valve lug and double flange body check valves can be furnished with thruhole bolting or threaded bolt holes.
Move the hinge shaft to insure that it is free from binding on retainers. Automatic balancing valves coilconnect kits combination ball valves manual balancing valves. Mueller canada offers several types of check valves including. It is suitable for frequent flow reversals, but not fluids with solids. Wafer valve with 316 stainless steel, wafer connection to ansi 150300 with metal to metal seating. Process valves symbols icons for planners, designers and. 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. Dl wafer lug body double disc check valve hs horizontal swing check valve df wafer double flange body double disc check valve sp short pattern wafer check valve cw wafer center guided silent check valve lp long pattern wafer. The spring loaded valve begins to close as flow is reduced and fully closes at zero velocity stopping reverse flow, thus helping to reduce water hammer shock. Checkall products are designed, manufactured and distributed in accordance with iso 9001 requirements. Tank pressure holding it closed is overcome by manual lift of the flapper. Milliken believes that in order to satisfy customers, our.
Operation manual for kitz wafer type check valves 125 fwnb. Wafer check valves goodwin crane mission stockham style. General dimensions asme classes 150300600 example 680025029180 dualplate wafer check valve, 2 50 mm, raisedface end. The fitting is a wafer check valve the fitting controls the flow of. Ask us how to spec the right check valve, or get catalogs, chemical resistance guides and submittals. Check valves types, construction, applications and. Cast steel gate, globe, check, and ball valves forged steel gate, globe, check, and ball valves t ripleoffset butterfly. 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. This design minimizes prospective leak paths through the valve body making it a preferable option for highly toxic, corrosive, or hazardous gas chemical processing applications. The single o ring ensures a complete leakfree seal. The spring return reduces noise for quiet operation. The stainless steel spring provides for long maintenance free operation. Ritag type sr wafer type lift check valves these models have been installed in plants around the world for decades. Wafer type gate and check valves, class 150 ypattern globe and check valves, and several patterns of butterfly valves were added to the types covered.
These include a scrubfree opening, and in most sizes a unique independent. The wafer check valve is a nonreturn valve ideal for limited space. Duochek valves duochek high performance nonslam check valves are the original mission wafer check valves introduced to the market in the late 50s. Caution and warning to ensure safe and trouble free function and performance, please read all the contents of this manual before handling, transportation, mounting and operation of the products. Single spring disc style wafer check to suit ansi 150 flanges, 316ss, metalmetal seat. A conduit clapper profile that closely matches the valve bore helps to guide the pig through the body of the valve and into the downstream pipe. Ordering information for long pattern wafer checks. Wafer checks are used where space or weight limitations exist.
Valve search model or description commercial valves. Titans full line of silent, wafer, dualdisc, and globe type check valves. Neway dual plate check valves are in compliance with api 594. View our range of wafer pattern check valves including wras approved, dual plate, swing, swing spring, high temperature and spring disc wafer check valves. For additional types of check valves, please visit. Model 90 wafer check valve on united brass works, inc. With valves in service around the world, in the most critical backflow prevention applications, the tom wheatley brand is recognized as the industry leader for check valve products. A traditional wafer check valve cannot be close coupled.
The valmatic wafer and globe silent check valves are. Datasheet wafer check valves harrington industrial plastics. Wcv series wafer check product guide hayward flow control. One of the most significant characteristics of this type of valves is its. They are available in the sizes, pressure classes and configurations you need to meet the most demanding of applications. Carbon steel, stainless steel, alloy steel, duplex stainless steel end connection. The spring loaded valve begins to close as flow is reduced and fully closes at zero velocity stopping reverse flow, thus helping to. Our product range includes, but is not limited to, sizes. Champion valves is dedicated to meeting your needs with a complete range of highquality and competitively priced check valves. Brayrite inlet ports and disc have been shape optimized to achieve. Sanitary standards the checkall style 3s check valve is compliant with 3a sanitary. The butterfly valve can be operated with the check valve in an open or closed position with no interference in 2 thru 6 sizes. A worldleading range of valves across all major industrial applications. Ritag wafer type check valves are available in any nominal diameter, pressure level and.
However, being smaller makes it lighter and, therefore, is more cost efficient to purchase, install and maintain. All wafer check valves are available to buy online. Dual disc, single disc, silent check, nozzle check, and other industrial wafer. All wafer check valves shall be of solid thermoplastic construction, having no metal that comes in contact with the media. Series 240 wafer style check valve our industrial grade 304316 stainless steel swing check valve is designed for a flanged piping system, between two flanges. Wafer check valve 3 3 general instructions for transportation, unpacking and storage in suspending and supporting a valve, take enough care and do not stand under a suspended valve. Browse fire protection products wafer check valves in the united brass works, inc. In such a design, a wedge slides cross a general passageway in order. The disassembly of the wafer check valve is accomplished by. Keckley wafer body double disc check valves are also suitable for liquid, natural gas, steam service, and vacuum service applications. Toll free 800374 0234, phone 269323 2495, fax 269 323 0630 customer service.
The valves may be installed in vertical or horizontal piping. The dddg ductile iron body, lead free double disc swing check valves use spring assisted halfdiscs. Swing check valve 22 way 24 gate valves 22 way 25 pinch valves 22 way 26 plug valves, straight through 22 way 27. The compact wafer style body is a one piece, retainerless model. Silent check valves are factory mutual approved for use. Leak free, tight sealing, protection against reverse flow and minimal flow direction changes are at the core of flowserve check valve designs. A check valve, clack valve, nonreturn valve, reflux valve, retention valve or oneway valve is a. Check valve lead free, class 125, iron body, bronze seat and disc w910blf. Butterfly check valves sample engineering specification all thermoplastic check valves shall be butterfly design constructed from pvc type i, astm d 1784 cell classification 12454 or cpvc type iv, astm d 1784 cell classification 23447. In 1991, subcommittee e facetoface and endtoend dimensions of valves, was combined. Valves shall be flanged, spigot, male threaded, grooved end or wafer style. Sure flow wafer or double door check valves have no through holes. Bellows seal globe valves, hermeticallysealed ypattern.
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