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Plate-Type Bidirectional Hydraulic Lock
Overview
The plate-type bidirectional hydraulic lock is a pilot-operated check valve designed to securely lock hydraulic actuators in both directions.
It prevents load drift and ensures safe, reliable holding of cylinders and motors even under high pressure.
Main Features
- Bidirectional locking for double-acting systems
- Pilot operated for smooth and reliable release
- Compact plate-type design for easy installation
- Hardened internal parts for long service life
- Ideal for load holding and safety applications
Dimension Key
| L | Length |
|---|---|
| H | Height |
| W | Width |
| P1 | Pilot Port V1 |
| P2 | Pilot Port V2 |
Models and Specifications
| Model | Max Pressure | Flow Rate | Pilot Ratio (P1:P2) | Port Size (V1, V2, P1, P2) | Weight |
|---|---|---|---|---|---|
| PTBL-320-10 | 320 bar | 10 L/min | 4.5:1 | G1/4″ | 1.4 kg |
| PTBL-320-12 | 320 bar | 12 L/min | 4.5:1 | G3/8″ | 1.4 kg |
| PTBL-320-15 | 320 bar | 15 L/min | 4.5:1 | G1/2″ | 1.4 kg |
Note: Specifications are based on mineral oil with a viscosity of 32 cSt at 40°C.
Applications
- Cylinder load holding in vertical applications
- Preventing load drift in hydraulic systems
- Hydraulic presses and clamping systems
- Crane, hoist and lifting equipment
- Mobile hydraulics and construction machinery
Notes
- Pilot pressure is required to open the valve
- Ensure the pilot pressure ratio meets or exceeds the required pilot ratio
- Keep hydraulic oil clean to extend service life
- Install as close to the actuator port as possible
- Do not exceed the maximum pressure rating
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