Friday, January 10, 2014

single check valve quick release coupling manufacturers vardhman bearings stainless steel



Single Check Valve Quick Release Coupling 
TYPE-SC is most popular type coupler used to connect air piping in factories and used to connect air tools with hoses etc. Both socket and plug have hose use and screw use advantages. There is also a variety of other types. The types 20, 30, 40, and Types 400and600are completely interchangeable. With one check valve built into the coupling only whereas plugs do not have any check valves. Can be advantageously used where one side of the flow system needs to be sealed on disconnection.
When plug & Socket are separated When plug & Socket are connected
When the outside sleeve at the socket side is pulled back, the plug and the socket are separated and the socket side is automatically closed so that the fluid does not flow to the outside.
When the outside sleeve at the socket side is pulled back and the socket is fitted to the plug, the valve at the socket side is automatically opened and the fluid flows.
  Dimensions & Weight Tables
ModelLpCHpØABpØSteel Brass
ModelLsHsATBsØSteel Brass
20 SM55.525.46Hex.19x21.9131/4-19pt795103
30 SM56.524.56Hex.21x24.2143/8-19PT8109119
40 SM59.525.46Hex.23x26.6161/2-14PT13116126
400 SM63356Hex.29x33.3161/2-14PT13213232
600 SM67356Hex.32x37183/4-14PT19260283
ModelLpCHpATBpØSteel Brass
LsHsABsØSteel Brass
ModelLpCHpATBpØSteel Brass
ModelLpCHpATBpØSteel Brass
   Handling Precautions 
    (1) Always insure the direction of fluid flow is from the socket side (valve) to the plug side.
     (2) When used with jet chisel or other vibrating tools, connect a rubber hose about 30 cm long between the too

We at vardhman bearings are manufacturers and exporters of all type of quick release couplings , quick couplings , cam locks , new series of quick release couplings , stainless steel couplings , brass quick release coupling , aluminum quick release coupling , stainless steel 303 , 304 , 316 , 202 , 201 , 210 , 212 , 202 grade of quick release couplings , carbon steel quick release couplings , QRC ,
We use latest technology and comprehensive quality control systems in designing and manufacturing wide range of Quick Release Coupling. Designed for reliable performance, our entire range is fabricated from qualitative raw material for ultimate durability and strength. These corrosion resistant coupling come with single & double shut off valves for avoiding leakage.
QRC type coupling work on Push and Pull principle. When the Adaptor is pushed to the coupler, its is accurately held by the self locking arrangement resulting in a positive & leak proof connection. This action simultaneously opens the valve & fluid flow starts. To disconnect, pull back the sleeve of the coupler, the Adaptor ejects out and the valves shut off automatically. Valves are provided in type one way sealing & two way sealing.
  • Quick connect / Release Couplings eliminate valves and screw on fittings in many pneumatic, hydraulic and chemical systems.
  • Permits easy, safe, quick & reliable connections between delivery lines, pressure hoses etc.
  • Connection disconnection of fluid systems is as easy as plugging in an electric gadget.
Material of Construction – As Per Standards
  • Body » Available in Brass / C.S. - Chrome plated (From Bar stock only). Also available in S.S. - 304 & S.S. - 316 (From Bar stock only)
  • Spring » Available in Spring Steel S.S. - 304 / S.S. - 316 as required
  • Ball » Available in Steel, S.S. - 304 & S.S. - 316
  • Seal Materials » Available in Nitrile, Viton, Neoprene, Silicon Materials.
Sizes are mainly from 1/8 inch up to 2 inch used by various industries & having end connections like pipe thread male / female, hose shank etc.
There are three types of Quick Couplings mainly used as follows
1. Through Bore QRC – Make - “VE-Lock – T”
2. Single check valve QRC (One way shut off type) – Make - “VE-Lock – V”
3. Double check vslve qrc (two way type ) - MAKE - " VELOCK - DC "
Quick release coupling - through bore type
Bore type quick release couplings have no check valves. These are ideal for maximum flow application. Their smooth, open bore offers the lowest pressure drop of any quick disconnected couplings and allows them to be through cleaned. Since there is no valves, fluid flow should be shut off before the coupling is disconnected.
Application :-
Where quickly detachable and rotatable connections are needed
Also used where regulation and closure of line is achieved by back up valves
Quick release coupling - single check valve type
One way sealing with one check valve build in to coupler only, where as plug do not have any check valve
Application: -
These couplings are used extensively when it is important to minimize fluid loss upon disconnection.
Quick release coupling - double check valve type
Double check valve type qrc having in build check valves in both part as coupler & adaptor this types of qrc applied for the systems where the minimum fluid loss requirements during disconnection. In double check valve type qrc,we refer iso 7241 - b standards qrc as general purpose & iso 7241 -a type for high pressure application only.
Application: -
used extensively when it is important to minimize fluid loss upon disconnection.
To see the details technical data sheet for all types of quick release coupling


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