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Hydraulic quick couplings

FLAT FACE HYDRAULIC QUICK COUPLING  ISO 16028

QKPT series--CARBON STEEL

QKPS series--STAINLESS STEEL

Features

 Connexion by pulling back the male coupling

 Disconnexion by pulling back the female sleeve

Shut off by flat face valve

Connexion under pressure not allowed

Disconnexion under pressure not allowed

Interchangeability according to ISO 16028

No spillage during Connexion and Disconnexion

Technical Specification

High grade carbon steel tempered or carbonitrited for specific stressed area

Polyurethane and NBR Backup ring in PTFE -25℃ to + 100℃

100.000 cycles at 133% of rated pressure disconnected 1,000,000 cycles at 133% of rated presure connected.

Tested according to ISO 7241-2 Specifications
application
Size Working Pressure Flow Rate Brust Pressure Force to connect
　 @ 0.2 Mpa pressure drop 　kze series hydraulic quick couplings 　QKPT FLAT FACE HYDRAULIC QUICK COUPLINGS 　QKPT FLAT FACE HYDRAULIC QUICK COUPLINGS  
mm inch Mpa(PSI) 1/min(GPM) Mpa(PSI) Mpa(PSI) Mpa(PSI) N
3.2 1/8" 35(5000) 12(3.2) 170(24200) 140(20000) 180(25700) 105
6.3 1/4" 35(5000) 9(2.4) 160(24000) 120(18000) 140(21000) 110
10 3/8" 30(4500) 30(7.9) 160(24000) 120(18000) 140(21000) 150
12.5 1/2" 30(4500) 75(19.8) 130(19500) 120(18000) 130(19500) 210
20 3/4" 30(4500) 180(47.6) 120(18000) 120(18000) 120(18000) 215
25 1" 25(3625) 270(71.4) 100(14500) 100(14500) 100(14500) 280

QKPT SERIES

Female

 flat face hydraulic quick couplings
Part No. Thread SIZE E(mm) F(mm) G(mm) Part No. Thread Size E(in.) F(in.) G(in.)
QKPT 02-02SF G1/4 1/4 48.0 24.0 28.0 QKPT 02-N02SF NPT1/4 1/4 1.88 0.94 1.10
QKPT 03-03SF G3/8 3/8 65.0 27.0 32.0 QKPT 03-N03SF NPT3/8 3/8 2.55 1.06 1.25
QKPT 03-04SF G1/2 3/8 70.0 27.0 32.0 QKPT 03-N04SF NPT1/2 3/8 2.75 1.06 1.25
QKPT 04-04SF G1/2 1/2 79.0 36.0 40.0 QKPT 04-N04SF NPT1/2 1/2 3.11 1.41 1.57
QKPT 04-06SF G3/4 1/2 79.0 36.0 40.0 QKPT 04-N06SF NPT3/4 1/2 3.11 1.41 1.57
QKPT 06-06SF G3/4 3/4 79.0 36.0 41.0 QKPT 06-N06SF NPT3/4 3/4 3.11 1.41 1.63
QKPT 08-08SF G1 1 93.0 45.0 48.0 QKPT 08-N08SF NPT1 1 3.66 1.77 1.88
QKPT 08-10SF G1-1/4 1 103.0 50.0 55.0 QKPT 08-N10SF NPT1-1/4 1 4.06 1.97 2.17
Male - 阳接头 flat face hydraylic quick coupling male
Part No. Thread SIZE A(mm) C(mm) D(mm) Part No. Thread Size A(in.) C(in.) D(in.)
QKPT 02-02PF G1/4 1/4 48.0 22.0 24.0 QKPT 02-N02PF NPT1/4 1/4 1.88 0.86 0.94
QKPT 03-03PF G3/8 3/8 60.0 24.0 26.0 QKPT 03-N03PF NPT3/8 3/8 2.36 0.94 1.02
QKPT 03-04PF G1/2 3/8 63.0 27.0 29.0 QKPT 03-N04PF NPT1/2 3/8 2.48 1.06 1.14
QKPT 04-04PF G1/2 1/2 70.0 32.0 35.0 QKPT 04-N04PF NPT1/2 1/2 2.77 1.25 1.37
QKPT 04-06PF G3/4 1/2 70.0 32.0 35.0 QKPT 04-N06PF NPT3/4 1/2 2.77 1.25 1.37
QKPT 06-06PF G3/4 3/4 70.0 36.0 38.0 QKPT 06-N06PF NPT3/4 3/4 2.77 1.41 1.51
QKPT 08-08PF G1 1 83.0 45.0 48.0 QKPT 08-N08PF NPT1 1 3.26 1.77 1.88
QKPT 08-10PF G1-1/4 1 109.0 55.0 60.0 QKPT 08-N10PF NPT1-1/4 1 4.29 2.17 2.36
ISO 16028 FLAT FACE HYDRAULIC QUICK COUPLINGS (STAINLESS STEEL)/ INTERATIONAL INTERCHANGE ISO 16028

 

QKPS SERIES HYDRAULIC QUICK COUPLINGS

Female

 FLAT FACE HYDRAULIC QUICK COUPLINGS
Part No. Thread SIZE E(mm) F(mm) G(mm) Part No. Thread Size E(in.) F(in.) G(in.)
QKPS 02-02SF G1/4 1/4 48.0 24.0 28.0 QKPS 02-N02SF NPT1/4 1/4 1.88 0.94 1.10
QKPS 03-03SF G3/8 3/8 65.0 27.0 32.0 QKPS 03-N03SF NPT3/8 3/8 2.55 1.06 1.25
QKPS 03-04SF G1/2 3/8 70.0 27.0 32.0 QKPS 03-N04SF NPT1/2 3/8 2.75 1.06 1.25
QKPS 04-04SF G1/2 1/2 79.0 36.0 40.0 QKPS04-N04SF NPT1/2 1/2 3.11 1.41 1.57
QKPS 04-06SF G3/4 1/2 79.0 36.0 40.0 QKPS 04-N06SF NPT3/4 1/2 3.11 1.41 1.57
QKPS 06-06SF G3/4 3/4 79.0 36.0 41.0 QKPS 06-N06SF NPT3/4 3/4 3.11 1.41 1.63
QKPS 08-08SF G1 1 93.0 45.0 48.0 QKPS08-N08SF NPT1 1 3.66 1.77 1.88
QKPS 08-10SF G1-1/4 1 103.0 50.0 55.0 QKPS 08-N10SF NPT1-1/4 1 4.06 1.97 2.17

 

Male

 FLAT FACE HYDRAULIC QUICK COUPLINGS INTERNAIONAL ISO 16028
Part No. Thread SIZE E(mm) F(mm) G(mm) Part No. Thread Size E(in.) F(in.) G(in.)
QKPS 02-02PF G1/4 1/4 48.0 22.0 24.0 QKPS 02-N02PF NPT1/4 1/4 1.88 0.86 0.94
QKPS 03-03PF G3/8 3/8 60.0 24.0 26.0 QKPS 03-N03PF NPT3/8 3/8 2.36 0.94 1.02
QKPS 03-04PF G1/2 3/8 63.0 27.0 29.0 QKPS 03-N04PF NPT1/2 3/8 2.48 1.06 1.14
QKPS 04-04PF G1/2 1/2 70.0 32.0 35.0 QKPS 04-N04PF NPT1/2 1/2 2.77 1.25 1.37
QKPS 04-06PF G3/4 1/2 70.0 32.0 35.0 QKPS 04-N06PF NPT3/4 1/2 2.77 1.25 1.37
QKPS 06-06PF G3/4 3/4 70.0 36.0 38.0 QKPS 06-N06PF NPT3/4 3/4 2.77 1.41 1.51
QKPS08-08PF G1 1 83.0 45.0 48.0 QKPS 08-N08PF NPT1 1 3.26 1.77 1.88
QKPS 08-10PF G1-1/4 1 109.0 55.0 60.0 QKPS 08-N10PF NPT1-1/4 1 4.29 2.17 2.36

Accessories
Dust protections dustcap for hydraulic quick couplings Dust protections dust protection for flat face hydraulic quick couplings ISO 16028
Size PVC   PVC  
mm inch Part No. Color Part No. Color  
6.3 1/4 CZT-1/4 customrized PZT-1/4 customrized  
10 3/8 CZT-3/8 PZT-3/8  
12.5 1/2 CZT-1/2 PZT-1/2  
20 3/4 CZT-3/4 PZT-3/4  
25 1 CZT-1 PZT-1  
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