Quick Release Couplings Manufacturer

Z-Lok Quick Release Couplings are designed for fast and secure connection and disconnection of fluid and gas lines. They are designed to be reliable and durable, making maintenance easier and minimizing downtime. These types of couplings can be used in hydraulic, pneumatic, instrumentation and industrial applications where it is necessary to make convenient and efficient line connections.

Quick Release Couplings

Specification list Quick Release Couplings

SIZE1/8″ TO 4″ 
THREADNPT, BSPP, BSPT, JIC, METRIC, UNF
CONNECTIONFEMALE TO FEMALE, FEMALE TO MALE, MALE TO MALE, MALE TO HOSE BARBED
PRESSURE RATING1500 PSI, 3000 PSI, 6000 PSI, 10000 PSI
MEDIA HYDRAULIC OIL, AIR, WATER, GAS, STEAM, HOT WATER , COLD WATER , SEA WATER , CHEMICAL, FUEL, VACUUMS
MEDIA TEMPERATURE(-40* C TO 300*C ) RANGE AS PER PRESSURE
BODY TYPEBAR STOCK
SEALNITRILE, VITON, EPDM
MATERIALSS 316, SS 304, SS 316 TI, COPPER, BRASS, DUPLEX, CS, INCONEL, SUPER DUPLEX, HASTELLOY, MONEL, ALLOY 20, SMO 254, 904L, TITANIUM & ALL OTHER ALLOYS

Quick Release Coupling

QUICK RELEASE COUPLING
QUICK DISCONNECT COUPLING
PUSH PULL COUPLINGS
QUICK COUPLINGS
HYDRAULIC QUICK RELEASE COUPLING
QRC
QDC COUPLING
DIN COUPLINGS
STUCCHI ITALY QUICK RELEASE COUPLING
HOLMBURY UK COUPLINGS
NITTO INTERCHANGABLE SERIES QRC
HIGH PRESSURE QUICK RELEASE COUPLING
3000 PSI QUICK RELEASE COUPLING
6000 PSI QUICK RELEASE COUPLING
400 BAR QUICK RELEASE COUPLING
FEMALE X FEMALE QRC
MALE X HOSE QRC
MALE X MALE QRC
SCREWED TYPE QRC
QRC MALE ADAPTOR
QRC FEMALE ADAPTOR

Size chart of Quick Release Coupling For Air

SizeISO 7241-B Norm (Bars)ISO 7241-A Norm (Bars)203 Series TGW (Bars)
3/8″380300750
1/4″400350950
1  1/2″140200300
3/4″320250650
1/2″350300750
1  1/4″280230450
1″300230450
2″100130300

Available Standard Material

STAINLESS STEEL QUICK RELEASE COUPLING
SS 304 QUICK RELASE COUPLING
SS 316 QUICK RELASE COUPLING
CS QUICK RELEASE COUPLING
BRASS QUICK RELEASE COUPLING
DUPLEX QUICK RELEASE COUPLING
SUPER DUPLEX QUICK RELEASE COUPLING
INCONEL 625 QUICK RELEASE COUPLING
MONEL 400 QRC
HASTELLOY C276 QUICK RELEASE COUPLING
ALLOY 20 QUICK RELEASE COUPLING
6MO QUICK RELEASE COUPLING
TITANIUM QUICK RELEASE COUPLING
CUPRO NICKEL 70 – 30 QRC
CUPRO NICKEL 90 – 10 QRC

Hydraulic Quick Coupling Identification Method

Quick Coupling StandardISO 7241-B NormISO 7241-A Norm203 Series TGW
Connection TypePush-in typePush-in typeThreaded type
Working Pressure Up to 400 BarsUp to 350 BarsUp to 950 Bars
Working temperatureViton (-10°c to 200°c)NBR (-30°c to 100°c)
EPDM (-40°c to 150°c)		Viton (-10°c to 200°c)NBR (-30°c to 100°c)
EPDM (-40°c to 150°c)		Viton (-10°c to 200°c)NBR (-30°c to 100°c)
EPDM (-40°c to 150°c)
Material TypeCarbon steel, EN-10277-3Stainless steel, AISI 316 
Brass, DIN-EN 12164		Carbon steel, EN-10277-3Stainless steel, AISI 316 Brass, DIN-EN 12164 Carbon steel, EN-10277-3Stainless steel, AISI 316 
Brass, DIN-EN 12164 
Equivalent DesignParker 60Aeroquip FD45Faster HSnap-Tite 72Parker 6600Aeroquip FD56Snap-Tite 61Faster ANV Tuthill 6000Gromelle 6000Hansen W6000

Quick Release Connectors Equivalent Material Grade

DESCRIPTIONCASTINGFORGINGBARSTOCKUNS GRADE
Low Temp CarbonA352 LCBA350 LF2A350 LF2K03011
Carbon SteelA216 WCBA105A105K30504
3 1/2 Nickel SteelA352 LC3A350 LF3A350 LF3K32025
High Yield Steel–A694 F60A694 F60K03014
1 1/4 Chrome, 1/2 MolyA217 WC6A182 F11A182 F11K11597
5 Chrome, 1/2 MolyA217 C5A182 F5A182 F5K41545
9 Chrome, 1 MolyA217 WC6A182 F9A182 F9K90941
2 1/4 Chrome, 1 MolyA217 WC9A182 F22A182 F22K21590
304A351 CF8A182 F304A276 or A479 304S30400
13 ChromeA351 CA15A182 F6AA276 or A479 410S41000
316A351 CF8MA182 F316A276 or A479 316S31600
304LA351 CF3A182 F304LA276 or A479 304LS30403
317LA351 CG8MA182 F317LA276 or A479 317LS31703
316LA351 CF3MA182 F316LA276 or A479 316LS31603
347A351 CF8CA182 F347A276 or A479 347S34700
321–A182 F321A276 or A479 321S32100
Alloy 400A494 M35-1B564 N04400B164 N04400N04400
17-4PH–A564 630–S17400
Alloy 800–B564 N08810B408 N08800N08800
Alloy K500––B865 N05500N05500
Alloy 600A494 CY40B564 N06600B166 N06600N06600
Alloy 825––B425 N08825N08825
Alloy B2A494 N 12MVB564 N10665B335 N10665N10665
Alloy 625A494 CW 6MCB564 N06625B446 N06625N06625
Alloy C22A494 CX2MWB574 N06022B574 N06022N06022
Alloy CA494 CW6M––N10002
22% DuplexA890 Gr 4AA182 F51A276 or A479 S31803S31803
Alloy C276A494 CW12 MWB564 N10276B574 N10276N10276
25% DuplexA890 Gr 6AA182 F53A276 or A479 S32750 or 60S32750 or 32760
904L–B625 N08904B649 N08904N08904
254SMOA351 CK3MCuNA182 F44A182 F44S31254
TitaniumB367 C2B381 F2B348 Gr 2R50400