DBW20 Rexroth Pressure Relief Valve from China manufacturer

Price:	28.0~42.0 USD
Payment Terms:	T/T,L/C,D/A,D/P,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: DBW20 3X series-112055

Production Capacity: 8,000pcs.

Delivery Date: 15-30days and upon discussi...

Standard or Nonstandard: Standard

Structure: Control

Temperature of Media: Medium Temperature

Brand Name: EGMEC

Max. operation pressure inlet X, P, A, B port:: 315Bar / 4567.50PSI

Max. operation pressure of outlet T or Y port for AC voltage:: 160Bar / 2320PSI

Max. flow rate:: 500L/min.

Working temperature:: -30/+80℃ of NBR seals and -...

Valve net weight:: 4.75Kgs

Means of Transport: Ocean,Land,Air;Express

Packing: Standard packing for export...

Power: Hydraulic

Pressure: High Pressure

Material: Casting

Media: Oil

Product description:: Rexroth DBW20, size10mm, so...

Max. operation pressure of outlet T or Y port for DC voltage:: 200Bar / 2900PSI

Four presetting pressure stages:: 50bar, 100bar, 200bar, 315b...

Installation bolts:: Metric ISO 4762- M16X50 Thr...

Recommended medium filtration:: ISO 4406 (C class) 20/18/15...

1. Directional valve control with CE certificated
2. Rotary knob for pressure adjustment
3. Subplate mounting with standard pattern

Rexroth DBW20 solenoid operated unloading pressure relief valve is controlled by a solenoid, which is on or off depends on the solenoid energized or de-energized and the pilot pressure is controlled by the main pilot relief valve

The upper chamber pressure of the pilot relief valve of the main valve is controlled by the pilot valve, if the pilot relief valve normally works, the upper chamber of the main valve keeping the presetting pressure.

Rexroth DBW20 Solenoid Operated Unloading Pressure Relief Valve

The solenoid will open if the hydraulic system pressure reaches the set pressure, on the one hand, it can drain the excess flow back to tank and maintaining the system pressure as set value. The solenoid valve maintain or unload the pressure, the main valve is to respond the solenoid valve, when the main valve port open to the right size when it is unloading , the excess flow is released out but also not affect the system pressure .

If the solenoid valve without pressure, there is no pressure in the upper chamber of the main valves, therefore, the poppet in the main valve is open at the largest size to release the pressure to the oil tank and not to system.

Rexroth DBW20 solenoid operated unloading pressure relief valve is connected with the main pilot valve the pressure in the upper chamber of the main valve is same with the connected part , this connected parts is no pressure unloading , the system does not require unloading through solenoid valve when the it is closed, which will return the pressure to the oil tank by the main valve.
Rexroth DBW20 Solenoid Operated Unloading Pressure Relief Valve