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Double Check Valve Quick Release Coupling


When plug and socket are seperated.		When plug and socket are connected.
The valve of the socket and plug is pushed against the valve seat and closed automatically. There is no leakage of the fluid.		The valves of the socket and plug are pushed against each other, the interior of the coupling is opened, and the outside of the plug and there is no leakage to the outside.

Features
•	Since both the plug and socket have a value, there is no leakage of gas, oil, etc. from either the socket or plug ends when disconnected.
•	Since they are manufactured by an especially high precision machining process, air tightness is a high 10-4 mmHg / sec.
•	The hose does not twist.
•	Designed for use in a wide range of applications.

Dimensions and Weight Table

Model	Type	Size BSP/ NPT	Max Working Press. PSI	DIMENSIONS(mm)					Weight(g)
Model	Type	Size BSP/ NPT	Max Working Press. PSI	Lp	C	Hp	A	T	Steel	Brass	S.S.
1P	QRC-DC1	1/8"	4000	30	17	13Hex.	13	1/8-28PT	21	21	19
2P	QRC-DC2	1/4"	4000	37	24	13Hex.	13	1/4-19PT	35	38	35
3P	QRC-DC3	3/8"	4000	40	26	22Hex.	14	3/8-19PT	60	65	60
4P	QRC-DC4	1/2"	3500	45	27	28Hex.	19	1/2-14PT	123	134	124
6P	QRC-DC5	3/4'	3000	49	29	32Hex.	20	3/4-14PT	212	231	213
8P	QRC-DC6	1"	2500	56	31	945x40	26	1-11PT	350	381	352
10P	QRC-DC7	11/4"	2500	59	36	51Hex.	24	1 1/4-11PT	592	645	596
12P	QRC-DC8	1 1/2"	2000	59	35	55Hex.	24	1 1/2-11PT	889	968	895
16P	QRC-DC9	2"	1500	72	42	65Hex.	30	2-11PT	1503	1637	1512

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Model	Type	Size BSP/ NPT	Max working press. PSI	DIMENSIONS(mm)					Weight(g)
Model	Type	Size BSP/ NPT	Max working press. PSI	Ls	D	Hs	A	T	Steel	Brass	S.S.
1S	QRC-DC1	1/8"	4000	44	22	Ø16x13	10	1/8-28PT	85	93	86
2S	QRC-DC2	1/4"	4000	58	28	Ø22x19	13	1/4-19PT	133	145	134
3S	QRC-DC3	3/8"	4000	65	35	Ø27x22	16	3/8-19PT	208	227	209
4S	QRC-DC4	1/2"	3500	71	42	Ø32x28	17	1/2-14PT	428	466	431
6S	QRC-DC5	3/4"	3000	76	45	Ø36x32	19	3/4-14PT	710	773	714
8S	QRC-DC6	1"	2500	85	55	Ø45x40	25	1-11PT	1000	1089	1006
40S	QRC-DC7	1B 1/4"	2500	96	68	Ø58x51	25	1 1/4-11PT	1587	1728	1596
12S	QRC-DC8	1 1/2"	2000	96	75	Ø65x59	25	1 1/2-11PT	2330	2537	2345
16S	QRC-DC9	2"	1500	112	85	Ø75x70	32	2-11PT	3645	3969	3668

Fluid ................... Operating oil
Temperature........ 30oC ± 5oC

Flow – pressure loss characteristic
Example:
For a flow of 100 Lit / Min using the 6SP, the intersection of the horizontal axis flow at 100 Lit / Min. yields the pressure loss value of 2 kg / cm2

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.

Features:

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.

Size

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.

Friday, January 10, 2014

double check valve quick release coupling manufacturers adapter single check valve vardhman bearings

Double Check Valve Quick Release Coupling

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