Welcome to the official website of Shanghai Radk-Tech Hydraulic Control System Co., Ltd.
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ABOUT USDedicated to building a company that integrates product R&D, intelligent manufacturing, sales and technical services.
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PRODUCTSMain business includes high-end hydraulic components such as electro-hydraulic servo valves, proportional valves, proportional multi-way valves, high-performance threaded cartridge valves, balancing valves, and hydraulic integrated valve groups.
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APPLICATIONIn the future, Norma Hydraulics will continue to strive forward, aiming to become a significant manufacturer in the high-end hydraulic components segment of the global hydraulic industry.
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One-way balance valve RT-LHDV33(B)P
Maximum pressure of balancing valve: 420 bar
Maximum pressure of buffer valve: 370 bar
Maximum flow rate: 80 L/min
Typical application: Concrete pump truck
- Product Description
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One-way balance valve RT-LHDV33P-11 RT-LHDV33BP-15
Maximum pressure of counterbalance valve: 420 bar
Max. pressure of buffer valve: 370 bar
Max. flow rate: 80L/min
Typical application: Concrete pump truckProduct Overview
The RT-LHDV33BP is a one-way counterbalance valve for constant load direction that effectively stops actuator vibration caused by lifting,
oscillating, rotating or suddenly changing from full speed to crawling speed.
The RT-LHDV33BP achieves control by throttling the return oil to the actuator. It always generates a back pressure slightly higher than the load
pressure. This back pressure is always generated at a negative load. If the load is positive, the load acts in the opposite direction to the hydraulic
pressure and the counterbalance valve will open fully, allowing the return to flow freely.
The LHDV type valve can effectively intervene in a vibration circuit that may be caused by the hydraulic cylinder driving the load, the flow regulating
valve of the reversing valve or the pressure/flow regulator of the variable pump. Its vibration damping performance is more adaptable and the damping
effect can be accurately adjusted.
Working principle and technical characteristics
When the load rises, that is, when the direction of action of the hydraulic cylinder is opposite to the direction of the load, the direction offluid flow from
F to V, the check valve opens, the fluid flows freely. When the load is falling, that is, when the direction of action of the hydraulic cylinder is the same as
the direction of the load, the direction of fluid flow from V to F, Sis the control port. When there is no control oil input to Sport, the load is locked. When
the control oil is input to the Sport, the spool of the counterbalance valve is pushed to move, so that the liquid flow in the direction ofVto F can flow.
Technical characteristics:
The main spool of the LHDV counterbalance valve adopts a slide valve throttling structure; the pilot oil is de pressurized by a hydraulic damping bridge,
and the closing characteristics of the main spool are controlled by a separate adjustable flow orifice. The hydraulic damping bridge consisting of check
valve, pre-pressure valve, threaded orifice and throttle orifice can slightly delay and weaken the violent movement of the spool and rapid pressure
relief, which will effectively stop the vibration caused by starting, stopping or suddenly changing from full speed to crawling speed.
Product Description
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Service Hotline：
Telephone：+86-21-54832120
Address：3229 Jindu Road, Minhang District, Shanghai
WeChat ID：RADK-TECH
Email： info@radk-tech.com
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