Rexroth DBD20 Direct Operated G304/1 Subplate Mounting Pressure Adjustment Relief Valve

Model: DBDS20P series -112044
Place of Origin: Zhejiang,China (Mainland)
Power: Hydraulic
Standard or Nonstandard: Standard
Pressure: High Pressure
Structure: Check
Material: Casting
Temperature of Media: Medium Temperature
Media: Oil
Brand Name: EGMEC
Product description:: Rexroth DBDS20P, supplate mounting pressure adjustment relief valve, size20mm
Subplate code:: G304/1
Screw-in cartridge valve threaded connection:: M45X1.5
P and T O-ring size:: 22x3mm
Max. inlet P port operation pressure:: 400Bar / 5800PSI
Max. outlet T port operation pressure:: 315Bar /4567.50PSI
Max flow rate:: 250L/min.
Pressure gauge port:: M27x2
Installation bolts:: M8X90 Threaded, Class: 10.9
Valve net weight:: 6.40Kgs

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Product Description

Payment & Shipping Terms Supply Capacity
Trade Term:CIFProduction Capacity:100,000
Payment Terms:L/C, D/P, D/A, T/T, WUPacking:Standard packing for...
Min. Order:150 Set/SetsDelivery Date:Depending quantity
Means of Transport:Express, Ocean, Air, Land

Rexroth DBD20 direct operated G304/1 subplate mounting pressure adjustment relief valves are pressure relief function, when the flow changes in the valve, the size of open spool and spool position change accordingly, the spring force on the spool is much smaller because the small movement of spool position and little rigid spring.
When the inlet port opens, some partial oil from the cylinder flows to oil tank through relief valve, the pressure on the P oil port is stable and the system pressure changes as per the pressure relief valves is the important indicator quality measurement of the pressure relief valve.
Rexroth DBD20 Direct Operated G304/1 Subplate Mounting Pressure Adjustment Relief Valve
Rexroth DBD20 Direct Operated G304/1 Subplate Mounting Pressure Adjustment Relief Valve

The P port of pressure relief valve can be adjustable by adjustment of bolts and spring force
The pressure relief valve is charged with pressure as a signal to change the amount of compression of the spring, changing the valve opening area of the through-flow and overflow to achieve the purpose of the fixed pressure. When the system pressure increases, the spool increased, increase in the flow area of the valve port, the overflow flow rate increases, thereby enabling the system pressure drop. The relief valve internal balance and movement of the spool is constituted by this negative feedback effect is the basic principle of the fixed pressure, but also all the basic working principle of the constant pressure valve.
The direct proportion to the size of the control pressure of the spring force, so if improve charged with pressure and available on the one hand to reduce the area of the spool to achieve, on the other hand, which is need to increase the spring force, due to structural constraints, the need to use more rigid of the springs.
Rexroth DBD20 Direct Operated G304/1 Subplate Mounting Pressure Adjustment Relief Valve
Rexroth DBD20 Direct Operated G304/1 Subplate Mounting Pressure Adjustment Relief Valve

Category: Rexroth DBD Valves