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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Series-5 PSL/PSV proportional multi-way valve
Product Model: RTPSL/V-5
Application Fields: Construction machinery, mining machinery, petroleum machinery, municipal vehicles
Maximum Pressure: 400 bar
Maximum Flow Rate: 240 lpm
- Product Description
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Proportional directional
spool valves type serise 5
RT-PSL/V-5Product overview
Load-sensing Proportional directional spool valves types series 3 can be used in constant displacement pump and variable displacement pump
hydraulic system. Stepless speed regulation can be carried out on the cylinder or motor by means of electronic control, manual and hydraulic
control. The output flow is only proportional to the input current signal or handle lever, and the speed is independent of the load, so several actuators
can work at different pressure and speed independently until the total required flow rate of the actuator is greater than the maximum flow rate that
the pump can provide.
The valve contains three functional blocks: connection block, directional valves and end plate. Each function block has different functions for option.
Maximum of 12 sections in each bank of valve.
l)Hydraulic oil accuracy should reach GB/Tl4039-2002 in -/18/15 grade (Equivalent to Level 7 in America NAS1638
2)Viscosity range: about 4-1500 est, optimum viscosity: about 10-500 est
3)Synthetic medium: poly alkyl ethylene glycol (HEPG) and synthetic grease (HEES), operating temperature is about+70 ° C
4)Operating oil temperature - 25 ° C-+80 ° C
5)Operating ambient temperature - 40 ° C-+80 ° C
6)The oil must be maintained according to the actual cleanliness of the hydraulic oil, the filter element of the oil filter must be replaced
regularly, and the oil tank and pipeline must be cleaned as necessary
Mounting threads: 4 MB deep 10 threaded holes on the connection block and end block
Installation Size :Ask for Engineering Valves Technical Department of Shanghai Norma Hydraulic Systems Co.
Install the base plate: the base plate should be flat, the valve should not have a twisting force after installation, so as not to distort the valve set to
makethespooljammed! ! !
Oil port connection: When connecting, you must pay attention to the letter mark of each oil port, and connect the pipeline strictly according to the
requirements of the hydraulic schematic.
P port: Oil inlet port, connected to pump output port
A/B port: working oil port, respectively connected to the two control ports of the cylinder or motor
R port: oil return port, connected to oil tank
M port: pressure gauge interface, measuring the pressure of the inlet of the proportional directional spool valves
LS port: Load pressure feedback signal output port, usually the LS port on the PSVtype multiway valve connection block is connected to the X port of
the load sensitive pump orto the Y port of the PSL or PSVtype proportional directional spool valves with E2 or E20 type tail plate upstream.
Z port: pilot control oil port, when the proportional directional spool valves is in the form of hydraulic control, it can provide pilot pressure oil for the
hydraulic control handle
U,W port: the load pressure signal output port on the directional spool valves, connected to the travel limit valve to achieve the travel limit of the actuator
Y port: Y port: Load pressure signal input port {E2 or E20 type terminal block only!) usually connected to the LS port on the connection block of the
latter PSV type proportional directional spool valves, if not connected to the latter PSVtype proportional directional spool valves, it must be connected
to the tank; the Y port on the terminal block of El or E4 type is plugged with a steel plug and cannot be taken over!
T port: control oil leakage port, El, E2, E3 type terminal block on the T port must be connected back to the tank, otherwise it will cause proportional
directional spool valves reversing function is not normal and damage can not withstand high pressure spring cover and other parts, thus causing oil
leakage and other problems! If the user privately blocked the port resulting in proportional directional spool valves leakage.
Piping: All welded pipes must be pickled and phosphated; hoses must be cleaned!
Welding pipeline: When welding pipeline or welding work next to the valve group, all oil ports of the proportional directional spool valves must be
sealed, so as to avoid welding slag and other dirt into the proportional directional spool valves, causing unnecessary failure!
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Service Hotline：
+86 400 997 5058
Telephone：+86-21-54832120
Address：3229 Jindu Road, Minhang District, Shanghai
WeChat ID：RADK-TECH
Email： info@radk-tech.com
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