销售原装进口日本YUKEN先导式溢流阀
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Direct Type Relief Valves This valve is used in a hydraulic circuit to prevent damage
 due to o ver pressure and to adjust the maximum circuit pressure of small c apacity
Pilot Operated Relief Valves These valves protect the hydraulic system from excessive pressure,
and can be used to maintain constant pressure in a hydraulic system.
Recommended Viscosity and Oil Temperatures 2  Viscosity ranging between 15 - 400 mm /s
(77 - 1800 SSU).  Oil temperatures between -15/+70°C (5 - 158°F).  Use hydraulic fluids
 which satisfy the recommended viscosity and oil temperatures given above.
Control of Contamination Due caution must be paid to maintaining control over contamination
After adjustments, do not forget to tighten the lock nut.
Remote Control Relief Valves This valve is used as a remote control valve for pilot operated type p ressure control valves.
 Solenoid Controlled Relief Valves The low-noise solenoid controlled
relief valve is a combination of a low-noise type pilot operated relief valve
and a solenoid operated directional valve.  It is used for no-load pump operation by using electric signals or,
 together with a remote control relief valve, for two or three pressure control of the hydraulic system.
Instructions To adjust the pressure, loosen the lock nut and turn the handle
 slowly clockwise for higher pressures or anti-clockwise for lower pressures.
 Please maintain the degree of contamination within NAS 1638-Grade 12.  Use 25 μm or finer line filter.
particularly develop-ed a s low-noise types.  Able to protect pumps
and control valves against excessive pressures, they are used to control the pressure
 in the hydraulic system to a constant level.  Remote control and unloading are permitted by using vent circuits. 
Solenoid Controlled Relief Valves These valves are a combination of a pilot
Any type of hydraulic fluids listed in the table below can be used.
 Pilot Operated Relief Valves Pilot operated relief valves here have been
Piping of the tank line should not be connected to any tank line of the other valves, but connected directly to the tank.
operated relief valve and a solenoid operated directional valve. 
Piping between the two is eliminated as the solenoid valve is directly mounted
Remote control and unloading are permitted by u sing vent circuits.
on the relief valve and connected with the relief valve vent. 
Pump pressure may be unloaded remotely by an electrical signal to the solenoid,
 or by connecting pilot relief valves to the solenoid valve ports
of the hydraulic fluids which may otherwise lead to breakdowns and shorten the life of the valves.

销售原装进口日本YUKEN先导式溢流阀