Praher wafer check valve k6 pvcu praher plastics austria gmbh. Wafer type check valve rsk standard plasticmetal version. Dual disc, single disc, silent check, nozzle check, and other industrial wafer check valves. The wafer check design offer significant space and weight reduction compared with. The nibco cast iron, wafer style check valve is spring actuated which reduces noise for quiet operation. Dualplate wafer check valves face to face dimensions api.
Kw900w check valve iron, fire protection, wafer style. Check valves prevent backflow by automatically closing when fluid reverses direction. The unique spring loaded, stainless steel disc and guiding system insures quick closing of the valve which minimizes water hammer. Wafer silent check valve style cw pressure drop chart this pressure drop chart is based on the flow of clean water through the keckley wafer silent check valve. 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. All wafer check valves are available to buy online. Valve is to operate silently in either vertical or horizontal positions, flow up or.
Determination of the flow direction in fluid systems in which there are multiple sources of fluid supply. Be sure to conduct a safety check on the machine tools. 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. 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. Because of their fast closure, these check valves rarely slam and hence have earned the name silent. Check valves check, one way or nonreturn valves are directional accessories for fluids, which permit the flow of fluid within a pipe in only one direction. Sure flow check can be installed with confidence into offshore or onshore. Valves shall be the compact wafer style and have a pressure and temperature rating equal to or greater than the pipeline in which they are installed. Another type is the center guided lift silent check valve.
Read all the contents of this manual before piping and using the m. 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. The facetoface tolerance shall be as specified in asme b16. The model 888vfd is a patented silent wafer style check valve. Technical description each image is saved as an autocad drawing with the.
The wafer check valve is most suited for water and sea water lines. Whether as a standard product or as a custom order. From the most common application to the most severe, velan has a solution. Rays flow control is a highend and new technology company which is focused on engineering, manufacturing and sales of industrial valve to the international market which includes.
Compact wafer silent style check valves thru 6 inches shall be rated for. Our facility is dedicated to meeting your needs with a complete range of highquality and competitively priced check valves. The silent type check valve can be installed in either. The wafer type design allows the valve to be easily installed, compact and economical. One of the most comprehensive valve product lines available from any manufacturer. 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.
Alibaba manufacturer directory suppliers, manufacturers. Jul 03, 2012 the interactive transcript could not be loaded. This check valve is cast iron and facetoface according to msssp126. The keckley style cw has a cracking pressure equal to or less than 0. Velan products dualplate check valves proquip wafer type. Wafer valve with 316 stainless steel, wafer connection to ansi 150300 with metal to metal seating.
Our facility is dedicated to meeting your needs with a complete range of high. 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. Check valves should be placed at a distance equal to 5 to 10 pipe diameters from. The development and manufacture of our highquality valves are in compliance with all international standards and regulations. This manual will provide the owner of a wafer or globe style silent check valve the information to operate and maintain the valve to ensure a long and satisfactory operating life. The compact valve body design allows a flow area exceeding the pipe area to minimize flow losses and maximize efficiency.
Check valve to have a minimum open area in the body of 110% of the area of the entering or corresponding pipe. The fitting is a wafer check valve the fitting controls the flow of. Inch dimensions were converted from common to twoplace decimal fractions. Browse fire protection products wafer check valves in the united brass works, inc. Velan products dualplate check valves proquip wafer type pw dualplate check valves. Growth has been constant with the addition of an awwa butterfly valve, general service butterfly valve, swing check valve, rubber flapper.
For safe and troublefree function and performance of the product, make sure to read and understand all items in this manual. These in line check valves have springloaded discs which move along the pipe axis over a short distance to close automatically in a fraction of a second. Wear protective gloves and safety goggles as fluid remains in the valve. You have clicked a page that seems to be very popular. Similar in operation to a swing check valve, the wafer check has a solid thermoplastic disc and seat arrangement that performs the. 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. Equipped with ss spring which can be removed if desired. View our range of wafer pattern check valves including wras approved, dual plate, swing, swing spring, high temperature and spring disc wafer check valves. Marlinvalves marlin high performance nonslam check valves are the original mission wafer check valves introduced to the market in the late 50s.
The joint between the seat ring and body is sealed by the flange gasket upon installation preventing any leakage through the. Series 240 wafer style check valve our industrial grade 304316 stainless steel swing check valve is designed for a flanged piping system. In 1991, subcommittee e facetoface and endtoend dimensions of valves, was combined. The duochek wafer valve design is generally stronger, lighter, smaller, more efficient and less expensive than conventional swing check valves. Material 1 body 1 pvc 2 disc 1 pvc 3 stopper 1 pvc 4 shaft 1 pvc 5 shaft plug 1 pvc 6 av bolt 2 pvc 7 l bolt 1 ss400 8 spring 1 swpb wetfe coating 9 oring a 3 epdmfkm 10 oring b 1 epdmfkm 11 oring c 1 epdmfkm. 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. Champion valves is dedicated to meeting your needs with a complete range of highquality and competitively priced check valves. The sure flow check wafer check valve is a precision engineered, fully developed product at the forefront of pipe system technology. Material 1 body 1 pvc 2 disc 1 pvc 3 stopper 1 pvc 4 shaft 1 pvc 5 shaft plug 1 pvc 6 av bolt 2 pvc 7 l bolt. The keckley style dd has a cracking pressure equal to or less than 0. Ritag wafer type check valves are available in any nominal diameter, pressure level and material for your processes. Wafer check valve plastic check valves asahiamerica. The nr010 check valve prevents the return flow of water to its source and provides quiet closure and total sealing of the sealing face. Dual disc, single disc, silent check, nozzle check, and.
Bf series waferlug butterfly valves milliken valve. The wafer check valve is a nonreturn valve ideal for limited space installations. Operation manual for kitz wafer type check valves 125 fwnb. Avfi specialise in a wide range of check valves non return valves include tilting disc, swing type with lever and counter weight arms, wafer check, duo check, single flap check, flex check valves and ball check valves. Valves shall be flanged, spigot, male threaded, grooved end or wafer style. These in line check valves have springloaded discs which move along the pipe axis over a short distance to close automatically in a fraction of a. Zwischenflansch ruckschlagarmaturen wafer type check valves. The silent type check valve is built with stainless trim to give years of trouble free operation. Rating is available when the video has been rented. The unique poppet design insures that the valve operates quietly and efficiently across a wide range of flow velocities. The check valve is recommended for automatic fire sprinkler applications where space is a premium. Be sure to conduct a safety check on the machine tools and motordriven tools to be used, before beginning work. Operation manual for kitz wafer type check valves 125 fwnb we appreciate your purchasing our products.
Figure 431 brass body high capacity water service inline check valve w press ends x431 low lead compliant water service inline check valve wpress ends figure 1211 bronze gate valves non. Wafer check valve 6 7 installation procedure in suspending and supporting a valve, take enough care and do not stand under a suspended valve. Keep this manual accessible to all valve operating personnel. Also keep this manual in a place accessible to the operator. Operationmaintenance manual 720g wafer and table of. Introduction of goodwin korea, according to type, guide of goodwin valves, comparison of dual plate check valve vs swing check valve. Files can be provided in earlier versions on special request.
To avoid premature wear in dura wafer check valves, please install check valves at a. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Wafer type api 594 dual plate check valve supplier. Wafer double disc check valve style dd, dl, and df head loss chart this head loss chart is based on the flow of clean water through the keckley double disc check valve. Valve bodies are tapped and plugged 12 ips for additional equipment such as a ball drip valve when used in conjunction with a. Check valve shall be of the silent wafer type and the same size as the entering pipe. The unique spring loaded, stainless steel disc and guiding system insures quick.
They are available in the sizes, pressure classes and configurations you need to meet the most demanding. Its design meets api 594 which is approximately one fourth the. Dimensions are in millimeters unless otherwise indicated. For safe and troublefree function and performance of the product, make sure to read and understand all items in this manual before valve mounting and operation. Valve is to operate silently in either vertical or horizontal positions, flow up or down. The dft model wlc cast iron wafer style silent check valve is a springassisted, inline check valve that provides reliable, low maintenance service for a wide range of fluids and pressuretemperature combinations. 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. The dft model wlc wafer style silent check valve is a lightweight, springassisted, inline check valve that provides reliable, low maintenance service for a wide range of fluids and pressuretemperature combinations. Globe style check valve shall be milliken series 821a. 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. Check valves should be placed at a distance equal to 5 to 10 pipe. Avfi specialise in a wide range of check valves non return valves include tilting disc, swing type with lever and counter weight arms, wafer check, duo check, single flap check.
Check valves feature cast brass bodies with a spring loaded clapper assembly making this valve suitable for vertical or horizontal installations. However, being smaller makes it lighter and, therefore, is more cost efficient to purchase, install and maintain. For kitz wafer type check valves thank you for choosing kitz products. The valves may be installed in vertical or horizontal piping. Product description, dimensions and specifications pdf.
82 1321 1180 1258 1165 500 588 23 364 527 709 563 877 96 195 93 989 787 830 1439 936 521 799 235 729 462 930 890 951 342 286 1354 246 152 1202 1177 163 1166 940 1388 549 235