Low Cracking Pressure Hydraulic Check Valve MPA Series
The ASHUN MPA Series Pilot Operated Check Modular Valves are engineered for position locking and load holding in advanced hydraulic systems. This series possesses exceptional pressure endurance limits and sensitive micro-pressure actuation characteristics to assure heavy machinery operational safety.
Maximum Operated Pressure Up to 315 bar (4500 psi)
Maximum Flow Handling Capacity Up to 40 L/min
Offer 2 bar (25 psi) and 4 bar (55 psi) micro-cracking pressure options
Adopt a Standardized 1/4" (01) Valve Size Configuration
Specification
| Model | Valve Size | Working Line | Max. Operated Pressure | Max. Flow |
|---|---|---|---|---|
| MPA-01 | 1/4" | P - Line | 315 bar (4500 psi) | 40 L/min |
| MPB-01 | 1/4" | B - Line | 315 bar (4500 psi) | 40 L/min |
| MPW-01 | 1/4" | AB - Line | 315 bar (4500 psi) | 40 L/min |
Description
Product Description
The ASHUN MPA Series Pilot Operated Check Modular Valves are crucial protective modules for ensuring the positioning accuracy of actuators. Benefiting from precise internal valve seat grinding, these products achieve extremely rigorous leak prevention standards in the pilot-closed state. This highly sealed, piping-free modular design proactively prevents heavy loads from shifting due to gravity or system pressure loss, providing solid safety backing for clamping mechanisms and vertical lifting platforms.
Product Features
- High-Standard Position Locking: Ensure absolute rest of actuating components to prevent accidental heavy load displacement.
- Zero-Leakage Seat Craftsmanship: Precision machining technology delivers ultimate leak prevention in the locked state.
- Comprehensive Circuit Protection: Support independent P, B, and AB line configurations to flexibly meet load-holding needs.
- Micro-Pressure Actuation Control: Extremely low pilot opening pressure designs perfectly balance response speed and energy savings.
Solutions
Construction Machinery
Construction equipment operates in punishing environments characterized by extreme climates, heavy dust, and intense vibration. Equipment stability is the ultimate key to maintaining project schedules. ASHUN provides highly durable custom hydraulic cylinders and high-torque rotary actuators specifically engineered for excavators, loaders, and heavy-duty construction vehicles. Our solutions feature superior anti-side-load capabilities and extreme precision, ensuring flawless performance under heavy loads, high pressure, and continuous operation—conquering the toughest job site challenges.
Lifting Equipment
Material handling equipment carries extreme risks to human safety and valuable assets; every lift and rotation must be flawless. For aerial work platforms (AWPs), cranes, tail lifts, and jacking systems, ASHUN delivers custom hydraulic cylinders integrated with fail-safe mechanisms and rotary actuators for high-precision positioning. We guarantee smooth, zero-leakage performance under heavy aerial loads and high-frequency lifting conditions.
Agricultural Machinery
From soil preparation to harvesting, agricultural machinery is constantly exposed to mud, dust, and erratic weather. ASHUN provides weather-resistant, leak-proof custom cylinders and precision rotary actuators for tractors, combine harvesters, and diverse attachments. Our high-load capacity ensures uninterrupted, high-efficiency operation during critical farming seasons.
Smart Automation/Industry 4.0 or Robotics Industry
In the era of smart manufacturing, heavy robotics and automated equipment require actuation that combines high power density with precise data feedback. ASHUN empowers heavy-duty robotic arms, AGVs, and automated production lines with smart-sensor-integrated cylinders and high-precision rotary actuators, seamlessly bridging the gap between traditional hydraulics and Industry 4.0 servo-hydraulics.
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