Your Professional Hydraulic Pressure Control Valve Supplier
Shijiazhuang Laiye Import & Export Trading Co., Ltd., affiliated with Hebei Wendefu Hydraulic Technology Co., Ltd., is a professional manufacturer of hydraulic valves and pressure control components. Our main products include directional valves, pressure valves, flow valves, hydraulic accessories, and customized components, widely used in industrial machinery, hydraulic systems, mining equipment, and automation industries.
Strong Technical Capability
Experienced engineers and advanced processing equipment help us provide stable hydraulic solutions for different industrial applications. We focus on practical performance and consistent product quality.
Flexible Custom Manufacturing
We support OEM and customized production based on drawings or technical requirements. Our team works closely with customers to improve product compatibility and project efficiency.
Reliable Global Supply
With decades of export experience, our products are supplied to Europe, Russia, the Middle East, South America, and Asia. We provide professional service, stable delivery, and long-term cooperation support.
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![Direct Relief Valve]()
Direct Relief ValveDirect Operated Relief Valve. Product name: Direct Operated Relief Valve. Brand: Onederful® Hydraulic. Model: DBDH6P10/315. Certificate: ISO9001-2008. Origin: China. Transportation: By sea / Air DHL -
![Hand Adjustable Rexroth DBD Series Replacement]()
Hand Adjustable Rexroth DBD Series ReplacementOur DBDH direct acting pressure relief valve is a fully compatible domestic replacement for the original Bosch Rexroth DBD series hydraulic valves. Tailored to solve the long lead time and high cost -
![DR Pilot Reducing Valve Rexroth Substitute]()
DR Pilot Reducing Valve Rexroth SubstituteThe DR series is a pilot operated pressure reducing valve for NG6 and NG10 subplate mounting.It takes a high inlet pressure and delivers a stable reduced outlet pressure, regardless of flow -
![DB Pilot Operated Relief Valve Rexroth Substitute]()
DB Pilot Operated Relief Valve Rexroth SubstituteThe DB series is a pilot operated relief valve for NG6 and NG10 subplate mounting.It limits system pressure by diverting excess flow to tank.Unlike direct acting reliefs, the pilot stage handles only -
![DA Pilot Unloading Valve Rexroth Substitute]()
DA Pilot Unloading Valve Rexroth SubstituteThe DA pilot unloading valve is a pressure‑controlled switch for hydraulic pumps.When system pressure reaches a set point, the valve opens and sends pump flow to tank at near‑zero pressure.The pump -
![DZ Pilot Operated Sequence Valve Substitute]()
DZ Pilot Operated Sequence Valve SubstituteThe DZ pilot sequence valve is a pressure‑controlled directional valve.It keeps one actuator moving until pressure builds enough to switch flow to a second actuator.Think of a press that first clamps -
![DBD Series Direct-acting Relief Valve]()
DBD Series Direct-acting Relief ValveDBD Series Direct-Acting Relief Valve is a pressure-limiting valve designed to protect hydraulic systems from overpressure. Direct-acting poppet construction delivers fast response and stable -
![Explosion- Proof Pilot Relief Valve]()
Explosion- Proof Pilot Relief ValveExplosion Isolation Pilot relief valveG1DB/DBW. Brand: Onederful® Hydraulic. Model：DBW20B-1-50B/3156CG24N9Z5L . Certificate: ISO9001-2008. Origin: China. Transportation: By sea / Air DHL / UPS / TNT -
![Modular Relief Valve]()
Modular Relief ValveModular relief valve ZDB6. Product name: Modular relief valve ZDB6. Brand: Wonderful® Hydraulic. Model: ZDB6VP-1-40/315. Certificate: ISO9001-2008. Origi : China. Transportation: By sea / Air DHL / -
![Pilot Unloading Valve]()
Pilot Unloading ValvePilot operated unloading valve DAW10. Brand: Onederful® Hydraulic. Model：DAW30A-1-30B/315. Certificate: ISO9001-2008. Origin: China. Transportation: By sea / Air DHL / UPS / TNT / Fedex . Payment: -
![Pilot Reducing Valve]()
Pilot Reducing ValvePilot Operated Reducing Valve DR. Product name: Pilot Operated Reducing Valve DR. Brand: Wonderful® Hydraulic. Model: DR20-1-50/31.5YM. Certificate: ISO9001-2008. Origin: China. Transportation: By -
![Pilot Sequence Valve]()
Pilot Sequence ValvePilot Operated Sequence Valve DZ10. Product name: Pilot Operated Sequence Valve DZ10 . Brand: Onederful® Hydraulic. Model: DZ30-1-30/21YM. Certificate: ISO9001-2008. Origin: China. Transportation: By
Parameter
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Specification |
10 |
20 |
30 |
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Max working pressure Mpa |
35 |
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Max.Flow (L/min) |
250 |
500 |
650 |
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Working voltage |
DC |
12/24 |
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AC |
110/220 |
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Pressure adjustment Mpa |
5 / 10 / 20 /31.5 / 35 |
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Design Number |
50 |
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Advantages of Hydraulic Pressure Control Valve
Precise Control: Hydraulic control valves provide excellent control over the hydraulic system. They can control the flow rate, pressure, and direction of hydraulic fluid with very high accuracy.
Flexibility: Hydraulic control valves are highly adaptable, and their functionality can be customized to meet the requirements of a specific application. They can be used to work with a wide range of hydraulic fluids and pressures.
Energy Efficiency: Hydraulic control valves are designed to operate with minimal energy input. The reduction in energy consumption results in reduced operating costs, making these valves more cost-effective in the long run.
Reliability: Hydraulic control valves are generally very reliable due to their simple and rugged construction. They can withstand harsh operating conditions and require minimal maintenance.
Safety: Hydraulic control valves are inherently safe to use because of their ability to provide precise control of hydraulic fluid flow. This allows users to control the movement and force of hydraulic actuators, which is essential in applications where safety is a priority.
Durability: Hydraulic control valves are built to last and can withstand harsh environments. They are designed to handle high pressure and high flow rates, making them ideal for use in a wide range of industrial applications.
Compact Design: Hydraulic control valves are compact in design, making them suitable for use in applications where space is limited. The small size of the valve allows it to be integrated into the hydraulic system without taking up too much space.
Applications of Hydraulic Pressure Control Valve
Industrial Machinery
In presses, injection molding machines, and material handling systems, hydraulic pressure control valves regulate oil flow to control clamping, pressing, and lifting motions. Stable valve operation ensures smooth production cycles and consistent output.
Mobile Equipment
Construction and mining equipment—such as excavators, loaders, and cranes—rely on hydraulic systems to power heavy-duty lifting, pushing, and rotating operations. Valves control oil routing to multiple actuators, allowing operators to perform complex, synchronized movements.
Agriculture
Tractors, harvesters, and irrigation machinery use hydraulic pressure control valves to direct oil to attachments like plows or loaders. Controlled oil flow enables accurate lifting, steering, and motion adjustment, improving efficiency in farming tasks.
Aerospace and Marine Systems
Aircraft landing gear, flight control surfaces, and marine steering systems all depend on hydraulic pressure control valves for precise motion control. Here, reliability is paramount—valves must deliver consistent oil direction and flow even under high pressure and extreme temperatures.
Key Components for Hydraulic Pressure Control Valve
Valve Body
Main housing containing internal ports.
Spool or Poppet
Moves within the body to open or close flow paths.
Actuator Shaft
Transmits control force to the spool.
Feedback Spindle
Provides position feedback for accurate control.
Seals and Rings
Prevent internal leakage.
Pilot Motor
Operates the main valve under high pressure (if applicable).
Steps for Setting and Adjusting Hydraulic Pressure Control Valve
Locate the hydraulic pressure control valve & Install a Gauge
Find the pressure relief valve on your hydraulic circuit — it's typically mounted on or near the pump outlet manifold. Thread a calibrated pressure gauge into the closest test port so you can read live pressure throughout the entire procedure.
Release the Locknut & Adjust the Spring
Loosen the locknut on top of the valve. Using a screwdriver, turn the adjustment screw clockwise to raise the relief pressure or counter-clockwise to lower it. Always work in small, measured increments — a quarter-turn at a time is a good rule of thumb — to prevent accidental over-compensation.
Verify System Pressure
Start the hydraulic power unit and watch the gauge. Compare the live reading against the manufacturer's recommended relief setting. If the pressure overshoots or undershoots, repeat the quarter-turn adjustments until the gauge holds steady at the target value. Once satisfied, tighten the locknut securely to lock the adjuster in place.
Ordering Process
Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service.
Packaging and Shipping
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Packaging |
Standard export carton/plywood case |
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Shipping |
Shipping by sea, by air, by express are acceptable. According to your requirements. |
Our Factory
Founded in 1988, Shijiazhuang Laiye Import & Export Trading Co., Ltd (under Hebei Wendefu Hydraulic Technology Co., Ltd) has spent 35+ years focused entirely on pressure valve components.
Our Certificates
FAQ
Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the most reliable hydraulic pressure control valve manufacturers and suppliers in China. Please feel free to wholesale cheap hydraulic pressure control valve made in China here and get quotation from our factory. All customized products are with high quality and competitive price.
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