Vaishnavi Hydraulics Private Limited
Vaishnavi Hydraulics Private Limited
Kandivali West, Mumbai, Maharashtra
GST No. 27AADCV5267A1ZF
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Quick Release Coupling

Our range of products include quick release couplings, 7241 series a couplings, 7241 series b couplings, push and pull type double check valve type, single check valve qrc and din series coupling.

Quick Release Couplings

Quick Release Couplings
  • Quick Release Couplings
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

Other Details:
  • QRC is short name of Quick release couplings or Quick disconnecting couplings or Quick couplings.
  • QRC is available in ISO 7241 A type & ISO 7241 B type as per standards.
  • QRC is available in Single check valve build type, Double check valve build in type and also in through hole type
  • QRC selection is depends on its application or end usage and it is applicable to connection with hoses , connection in moulds , heaters , cooling units , flexible connection with manifolds & many more.
  • QRC manufacturer uses latest technology and comprehensive quality control systems in designing and manufacturing.
  • QRC range is fabricated from qualitative raw material for ultimate durability and strength.
  • QRC corrosion resistant coupling come with single & double shut off valves for avoiding leakage.

Working Principle:
  • QRC work on Push and Pull principle. When the Adaptor is pushed to the coupler, it 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.
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7241 Series A Couplings

7241 Series A Couplings
  • 7241 Series A Couplings
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

ISO.A couplings are the ideal choice where a tough, durable product of superior quality is required. They are perfectly suited to industrial and agricultural applications. A poppet valve is used to minimise the pressure drop characteristics and provide a positive sealing arrangement.Features:
  • Positive, quick connection ensured by the snap together locking ball system.
  • When connected the male and female halves can rotate, even under pressure, thus avoiding any torsional stress in the flexible hoses.
  • Designed to withstand high pressure peaks and pulses.
  • Poppet valves have balanced springs and calibrated oil flow passages to minimise the pressure drop.
  • Poppet valve seals have shockproof protective edges.

Specifications:
Body
Size
Nominal
Diameter
Max Working
Pressure
(bar)
ØA* AF1 AF2 B C ØD E F L I Weight
(kg)
IA06 6.3 350 1/4" 19 19 47 32 26 11.7 5.6 64.5 22 0.13
IA10 10 300 3/8" 22 22 56 38 31 17.2 8.9 76.5 24 0.20
IA12 12.5 250 1/2" 27 27 63 44.5 38 20.5 9.3 86 30 0.34
IA19 20 250 3/4" 38 36 82 55 48 29 16 111 44 0.71
IA25 25 230 1" 45 41 97 63 54 34.3 19.8 127 52 1.10
IA32 31.5 230 11⁄4" 55 50 117 75 65 45 25 151 56 1.90
IA40 40 190 11⁄2" 60 60 135 85 80 55 30.7 171 65.5 3.10
IA50 50 130 2" 75 75 160 100 100 65 35.1 201 83.5 5.50
A*=inch size BSP or NPT. Other dimensions in mm.
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7241 Series B Couplings

7241 Series B Couplings
  • 7241 Series B Couplings
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

Product Details:
Size VE-Lock Item End Diamensions in MM  
T Code Connection L1 L2 L D W.P
1/8" VE DC 1/8" BSP (F) x (F) 44 33 58 23 300
1/4" VE DC 1/4" BSP (F) x (F) 58 40 72 32 300
3/8" VE DC 3/8" BSP (F) x (F) 66 45 80 38 300
1/2" VE DC 1/2" BSP (F) x (F) 71 50 90 44 250
3/4" VE DC 3/4" BSP (F) x (F) 77 55 98 48 200
1" VE DC 1" BSP (F) x (F) 85 63 112 58 150
1 1/4" VE DC 1.25" BSP (F) x (F) 94 65 120 72 150
1 1/2" VE DC 1.5" BSP (F) x (F) 113 80 144 89 150
2" VE DC 2" BSP (F) x (F) 127 88 152 105 100
2 1/2" VE DC 2.5" BSP (F) x (F) 132 94 158 118 100
3" VE DC 3" BSP (F) x (F) 140 103 180 127 100
Inbuild Check Valve In Socket (Coupler) + Plug (Adaptor) Both Side
Sealing Inside – Nbr Ring
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Push and Pull Type Double Check Valve Type

Push and Pull Type Double Check Valve Type
  • Push and Pull Type Double Check Valve Type
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCDouble Check
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

Other Details:
  • 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.
  • Double check valve QRC is available in ISO 7241 - b standards as general purpose & ISO 7241 -A type for high pressure application only.
  • Double check valve QRC used extensively when it is important to minimize fluid loss upon disconnection.
  • Double check valve QRC available in various sizes from 1/8 inch till 2 inch in various threads like metric , BSP, BSPT , NPT , UNF & in various end connection like hose shank , female threads , Male threads & so on.

Features:
  • Quick 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.

Working Principle:
  • Double check valve QRC work on Push and Pull principle. When the Adaptor is pushed to the coupler, it 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.
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Single Check Valve Qrc

Single Check Valve Qrc
  • Single Check Valve Qrc
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSINGLE CHECK VALVES TYPES
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

Features:
  • Single check valve QRC has in build check valve in coupler side & adaptor side it has through hole
  • Single check valve QRC is mainly used for water cooling application where adaptor will be fix in moulds /panel side & coupler part will be fix it with water piping connection which allows to stop water leakage during it is disconnecting.
  • Single check valve QRC work on Push and Pull principle. When the Adaptor is pushed to the coupler, it 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.
  • Single check valve QRC available in various sizes from 1/8 inch up to 2 inch used by various industries & having end connections like pipe thread male / female, hose shank etc.
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DIN Series Coupling

DIN Series Coupling
  • DIN Series Coupling
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

FEATURES
  • Connection System: By pulling back the sleeve.
  • Disconnection System: By pulling back the sleeve.
  • Shut-off System: Poppet Valve
  • Connectable: without Pressure
  • Materials:
    Body: Carbon Steel-EN1A/EN8DM
    Springs: Spring Steel as per IS:4454 Grade II
    Balls: AISI E-52100 Grade 100
    Seals: NBR (Nitrile) Temprature Range -30° to 100°C
    Backup Ring: PTFE
  • Surface Treatment: Zinc Plating with Cr III based Passivation.

BSP SERIES 
DN Size Thread Type Specifications 
LP LS S1 S2 Dia D L Dia C Max Operating Pr Minimum Brust Pr
6.3 1/4" 1/4" BSP 36 53 22 19 27 72 14.2 350 1000
10 3/8" 3/8" BSP 40 61 27 24 35 81 18.95 300 1000
12.5 1/2" 1/2" BSP 46 63 30 27 38 87.5 20.56 300 1000
20 3/4" 3/4" BSP 56 85 38 36 48 112 27.95 250 640
25 1" 1" BSP 63 96 46 41 55 126 31.3 220 400
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Flat Face Series Couplings

Flat Face Series Couplings
  • Flat Face Series Couplings
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-Lock
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

BSP Series:
DN Size Thread Type Specifications 
LP LS S1 S2 Dia D L Dia B Max Operating Pr Minimum Brust Pr
6.3 1/4" 1/4" BSP 52.5 59.5 22 22 28.5 101 16.1 315 1260
10 3/8" 3/8" BSP 60.6 73.8 30 30 33 119 19.7 250 1000
10 3/8" 3/8" BSP 60.6 73.8 30 30 33 119 19.7 250 1000
12.5 1/2" 1/2" BSP 73 83.5 36 36 38 139 24.5 250 1000
12.5 1/2" 1/2" BSP 73 83.5 36 36 38 139 24.5 250 1000
20 3/4" 3/4" BSP 86.2 98.5 41 41 48.5 162 29.9 250 1000
20 3/4" 3/4" BSP 86.2 98.5 41 41 48.5 162 29.9 250 1000
25 1" 1" BSP 92.2 109.5 50 50 55.5 179 36 200 800

NPT Series:
DN Size Thread Type Specifications
LP LS S1 S2 Dia D L Dia B Max Operating Pr Minimum Brust Pr
6.3 1/4" 1/4" NPT 52.5 59.5 22 22 28.5 101 16.1 315 1260
10 3/8" 3/8"NPT 60.6 73.8 30 30 33 119 19.7 250 1000
10 3/8" 3/8"NPT 60.6 73.8 30 30 33 119 19.7 250 1000
12.5 1/2" 1/2"NPT 73 83.5 36 36 38 139 24.5 250 1000
12.5 1/2" 1/2"NPT 73 83.5 36 36 38 139 24.5 250 1000
20 3/4" 3/4"NPT 86.2 98.5 41 41 48.5 162 29.9 250 1000
20 3/4" 3/4"NPT 86.2 98.5 41 41 48.5 162 29.9 250 1000
25 1" 1"NPT 92.2 109.5 50 50 55.5 179 36 200 800
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Screw Type Couplings for Jacks

Screw Type Couplings for Jacks
  • Screw Type Couplings for Jacks
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

FEATURES
  • Connection system: By screwing togetther the two parts
  • Disconnecction system :By unscrewing the two parts
  • shut-off system :poppet valve
  • connecatble: under residual pressure
  • Materials:
    Body: Carbon Steel-EN1A/EN8DM
    Springs: Spring Steel as per IS:4454 Grade II
    Balls: AISI E-52100 Grade 100
    Seals: NBR (Nitrile) Temprature Range -30° to 100°C
    Backup Ring: PTFE
  • Surface Treatment: Zinc Plating with Cr III based Passivation.

DN Size (inch) Thread Type
Dia A
Specifications 
LP LS S1 S2 Dia D L Dia C Max Operating Pr Minimum Brust Pr
6.3 1/4" 1/4" NPT 40 60 19 27 30 81 19 700 1700
10 3/8" 3/8"NPT 40 73.5 24 32 35 87 19 700 1700

Note : All dimensions are in mm, unless otherwise specified. Pressure in bar.

These dimensions are for reference only and are subject to change as per design modifications.

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Screw Type Couplings for HPSC

Screw Type Couplings for HPSC
  • Screw Type Couplings for HPSC
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCSingle Check / Double Check/ Hole Types/High Pressure Types
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

FEATURES
  • Connection system: By screwing togetther the two parts
  • Disconnecction system :By unscrewing the two parts
  • shut-off system :poppet valve
  • connecatble: Without pressure
  • Materials:
    Body: Carbon Steel-EN1A/EN8DM
    Springs: Spring Steel as per IS:4454 Grade II
    Balls: AISI E-52100 Grade 100
    Seals: NBR (Nitrile) Temprature Range -30° to 100°C
    Backup Ring: PTFE
  • Surface Treatment: Zinc Plating with Cr III based Passivation.

DN Size Thread Type Specifications 
L1 L2 S1 S2 Dia D1 Dia D2 L Max Operating Pr Minimum Brust Pr
6.3 1/4" 1/4"BSP 59 36 19 19 40 30 72 950 3800
10 3/8" 3/8"BSP 62 48 41 30 45 35 89.5 750 3000
12.5 1/2" 1/2"BSP 71 53 46 34 50 39.2 102 750 3000
20 3/4" 3/4"BSP 88 63 51 41 55 50 121.8 650 2600
25 1" 1"BSP 100 72.2 55 50 60 55 138.4 450 1800
31.5 11/4" 11/4"BSP 123 86.2 75 65 80 70 167.2 450 1800
40 11/2' 11/2"BSP 137.4 95.6 90 75 98 84 188.4 300 1200
50 2" 2'BSP 203.5 118 71 71 110 90 237 300 1200

Note : All dimensions are in mm, unless otherwise specified. Pressure in bar.

These dimensions are for reference only and are subject to change as per design modifications.

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Push and Pull Type Through Hole Type

Push and Pull Type Through Hole Type
  • Push and Pull Type Through Hole Type
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCTHROUGH HOLE TYPES
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

  • Through type QRC (quick release couplings )have no check valves.
  • Through type QRC are ideal for maximum flow application.
  • Through type QRC having smooth, open bore offers the lowest pressure drop of any quick disconnected couplings and allows them to be through cleaned.
  • Through type QRC is not having any check 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

WORKING PRINCIPLE

Quick release couplings are work on Push and Pull principle. When the Adaptor is pushed to the coupler, it 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.


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.
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Push & Pull Type - Double Check Valve Type

Push & Pull Type - Double Check Valve Type
  • Push & Pull Type - Double Check Valve Type
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Product Details:

Usage/ApplicationTo Connect Hoses With Manifolds
BrandVE-LOCK
Mfg. StandardISO 7241 A & B Types
Types of QRCDOUBLE CHECK VALVES TYPES
Temperature Deg C90 Degree C For NBR Seals, 200 Degree C For Viton Seals
Materials Of ConstructionMetal Parts Are In C.S. or SS

  • 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.
  • Double check valve QRC is available in ISO 7241 - b standards as general purpose & ISO 7241 -A type for high pressure application only.
  • Double check valve QRC used extensively when it is important to minimize fluid loss upon disconnection.
  • Double check valve QRC available in various sizes from 1/8 inch till 2 inch in various threads like metric , BSP, BSPT , NPT , UNF & in various end connection like hose shank , female threads , Male threads & so on..
WORKING PRINCIPLE

Double check valve QRC work on Push and Pull principle. When the Adaptor is pushed to the coupler, it 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 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
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Mehul Padiya (Director)
Vaishnavi Hydraulics Private Limited
1112, 11th Floor, Ghanshyam Enclave, Kandivali Link Road, Kandivali West
Mumbai - 400067, Maharashtra, India



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