Quick Release Couplers


Quick Release Couplers
Advanced quick release hydraulic couplers with flat-face design and enhanced sealing. KNV series provides reliable performance with minimal fluid loss and extended service life. Engineered for applications requiring high reliability and frequent disconnections.
Material
Steel
Surface finish
Chrome Plated
Application
Industrial hydraulic systems, precision equipment, specialized applications, systems requiring reliable quick-disconnect functionality

Quick Release Couplers
Advanced quick release hydraulic couplers with flat-face design and enhanced sealing. KNV series provides reliable performance with minimal fluid loss and extended service life. Engineered for applications requiring high reliability and frequent disconnections.
Material: Steel;
Surface Treat: Chrome Plated;
Application: Industrial hydraulic systems, precision equipment, specialized applications, systems requiring reliable quick-disconnect functionality
Technical Data
Specifications
1/4", 3/8", 1/2", 3/4", 1"
350, 300, 300, 250, 250
Connexion by pulling back the sleeve
Disconnection by pulling back the female sleeve
Shut off by poppet valve
Connexion under pressure not allowed
Disconnexion under pressure not allowed
Interchangeability US Market
Quick Release - Flat Face
Steel
Chrome Plated
Advanced Poppet Valve
Precision industrial hydraulics
Specialized machinery
Applications requiring frequent disconnections
Equipment with high reliability requirements
Advanced industrial systems
Precision industrial hydraulics
Specialized machinery
Applications requiring frequent disconnections
Equipment with high reliability requirements
Advanced industrial systems

| Part No. | Thread | Overall Length (mm) | Hex Size (mm) | Largest Diameter (mm) | Part No. | Thread | Overall Length (in) | Hex Size (in) | Largest Diameter (in) |
|---|---|---|---|---|---|---|---|---|---|
| KNV-02SF | G1/4 | 50 | 22 | 24 | KNV-N02SE | NPT1/4 | 1.97 | 0.87 | 0.94 |
| KNV-03SF | G3/8 | 57 | 24 | 27 | KNV-N03SF | NPT3/8 | 2.24 | 0.94 | 1.06 |
| KNV-04SF | G1/2 | 65 | 30 | 34 | KNV-N04SF | NPT1/2 | 2.56 | 1.18 | 1.34 |
| KNV-06SF | G3/4 | 64 | 36 | 42 | KNV-N06SE | NPT3/4 | 2.52 | 1.42 | 1.65 |
| KNV-08SF | G1 | 71 | 46 | 51 | KNV-N08SF | NPT1 | 2.8 | 1.81 | 2.01 |
| KNV-10SF | G11/4 | 97 | 50 | 56 | KNV-N10SF | NPT11/4 | 3.82 | 1.97 | 2.2 |
| KNV-12SF | G11/2 | 91 | 65 | 70 | KNV-N12SF | NPT11/2 | 3.58 | 2.56 | 2.76 |
| KNV-16SF | G2 | 120 | 89 | 90 | KNV-N16SF | NPT2 | 4.02 | 3.5 | 3.54 |

| Part No. | Thread | Overall Length (mm) | Hex Size (mm) | Largest Diameter (mm) | Part No. | Thread | Overall Length (in) | Hex Size (in) | Largest Diameter (in) |
|---|---|---|---|---|---|---|---|---|---|
| KNV-02PF | G1/4 | 49 | 22 | 10.8 | KNV-N02PE | NPT1/4 | 1.93 | 0.87 | 0.43 |
| KNV-03PF | G3/8 | 57 | 24 | 12.9 | KNV-N03PF | NPT3/8 | 2.24 | 0.94 | 0.51 |
| KNV-04PF | G1/2 | 63 | 30 | 16 | KNV-N04PE | NPT1/2 | 2.48 | 1.18 | 0.63 |
| KNV-06PF | G3/4 | 64 | 36 | 23.3 | KNV-N06PF | NPT3/4 | 2.52 | 1.42 | 0.92 |
| KNV-08PF | G1 | 68 | 46 | 29.7 | KNV-N08PF | NPT1 | 2.68 | 1.81 | 1.17 |
| KNV-10PF | G11/4 | 91 | 50 | 36.1 | KNV-N10PE | NPT11/4 | 3.58 | 1.97 | 1.42 |
| KNV-12PF | G11/2 | 85 | 65 | 43.5 | KNV-N12PF | NPT11/2 | 3.35 | 2.56 | 1.71 |
| KNV-16PF | G2 | 98 | 89 | 56.8 | KNV-N16PE | NPT2 | 3.86 | 3.5 | 2.24 |
| Size | Working pressure | Flow Rate | Burst Pressures | |||||
|---|---|---|---|---|---|---|---|---|
| mm | inch | MPa (PSI) | @0.2 MPa drop | l/min (GPM) | @ 0.2 MPa drop | MPa (PSI) | MPa (PSI) | MPa (PSI) |
| 6.3 | 1/4" | 27 (3915) | — | 22 (5.81) | — | 110 (15950) | 160 (23200) | 110 (15950) |
| 10 | 3/8" | 30 (4350) | — | 65 (17.17) | — | 160 (23200) | 180 (26100) | 120 (17400) |
| 12.5 | 1/2" | 22 (3190) | — | 75 (19.82) | — | 88 (12760) | 90 (4350) | 88 (12760) |
| 20 | 3/4" | 19 (2755) | — | 170 (44.91) | — | 76 (11020) | 76 (11020) | 76 (11020) |
| 25 | 1" | 15 (2175) | — | 280 (73.98) | — | 60 (8700) | 60 (8700) | 60 (8700) |
| 31.5 | 1 1/4" | 10 (1450) | — | 450 (118.89) | — | 40 (5800) | 50 (7250) | 50 (7250) |
| 40 | 1 1/2" | 11 (1595) | — | 450 (118.89) | — | 45 (6525) | 45 (6525) | 45 (6525) |
| 50 | 2" | 10 (1450) | — | 1100 (290.62) | — | 40 (5800) | 40 (5800) | 40 (5800) |