Push-and-Pull Couplers


Push-and-Pull Couplers
High-performance carbon steel push-and-pull quick couplers with heat-treated wear parts. Rated for 250 Bar with NBR seals and PTFE backup rings. Features reliable poppet valve closure and breakaway function according to ISO 5675. Enhanced valve response and seal integrity for demanding applications.
Material
Carbon Steel with heat treated wear parts
Surface finish
Standard
Application
Heavy-duty hydraulic systems, industrial machinery, specialized hydraulic equipment, push-pull applications requiring 250 Bar rated pressure

Push-and-Pull Couplers
High-performance carbon steel push-and-pull quick couplers with heat-treated wear parts. Rated for 250 Bar with NBR seals and PTFE backup rings. Features reliable poppet valve closure and breakaway function according to ISO 5675. Enhanced valve response and seal integrity for demanding applications.
Material: Carbon Steel with heat treated wear parts;
Surface Treat: Standard;
Application: Heavy-duty hydraulic systems, industrial machinery, specialized hydraulic equipment, push-pull applications requiring 250 Bar rated pressure
Technical Data
Specifications
1/4", 3/8", 1/2", 3/4", 1"
350, 300, 300, 250, 250
Connexion by pushing the male coupling
Disconnection by pulling the male part
Shut off by poppet valve
Connectable with male part (ISO A) under pressure
Breakaway function according to ISO 5675 specifications
Interchangeability according to ISO7241-1 part A
1/2"
250 Bar
Carbon Steel
NBR (other materials available on request)
-20°C to +125°C
Heavy-duty industrial hydraulics
Specialized machinery applications
High-demand hydraulic systems
Equipment with frequent coupling cycles
250 Bar rated pressure applications
Heavy-duty industrial hydraulics
Specialized machinery applications
High-demand hydraulic systems
Equipment with frequent coupling cycles
250 Bar rated pressure applications

| Part No. | Thread | Overall Length (mm) | Hex Size (mm) | Largest Diameter (mm) |
|---|---|---|---|---|
| KZAV-GO4SF | G1/2 | 107.3 | 27 | 38 |
| KZAV-NO4SF | NPT1/2 | 107.3 | 27 | 38 |
| KZAV-UO4SF | 3/4UNF | 107.3 | 27 | 38 |
| KZAV-M22SF | M22X1.5 | 107.3 | 32 | 38 |
| KZAV-U178S | 7/8UNF | 110 | 32 | 38 |
| KZAV-GO4SF | G1/2 | 4.22 | 1.06 | 1.5 |
| KZAV-NO4SF | NPT1/2 | 4.22 | 1.06 | 0.5 |
| KZAV-UO4SF | 3/4UNF | 4.22 | 1.06 | 1.5 |
| KZAV-M22SF | M22X1.5 | 4.48 | 1.26 | 1.5 |
| KZAV-U178SF | 7/8UNF | 4.48 | 1.26 | 1.5 |
@ 0.2 MPa pressure drop
| Size | Working Pressure | Flow Rate | Burst Pressures | |||
|---|---|---|---|---|---|---|
| mm | inch | MPa (PSI) | L/min (GPM) | MPa (PSI) | MPa (PSI) | MPa (PSI) |
| 12.5 | 1/2" | 25 (3625) | 68 (18) | 120 (17100) | 100 (14500) | 105 (15250) |