Vickers | DGMR5B1FW30
DGMR5B1FW30
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The DGMR5B1FW30 valve belongs to the SystemStak Modular Valves series from Vickers and serves as a pressure-operated element for hydraulic automation. Its port function is B, piloted from A, so pilot flow from line A controls relief in line B. A 4:1 pilot ratio lets the main stage open with one-quarter of the downstream pressure, giving predictable response. The assembly withstands up to 315 bar (4,500 psi) and accommodates flows to 120 L/min (32 US gpm), matching many medium-capacity circuits. It is suitable for petroleum oils commonly used in industrial hydraulics, and the internal design returns leakage fluid to tank because the unit has no external drain.
Pressure settings are changed with a screw and locknut, allowing secure adjustment that resists vibration. Total case leakage at 315 bar and 50 °C is limited to 5 drops per minute, while load-holding leakage at 70 percent of rated pressure is 0.35 ml per minute, helping actuators stay in position. The mounting face follows ISO 4401-AC-05-4-A (NFPA D05) so it stacks directly on corresponding subplates. Overall dimensions are 142.6 mm in length, 71.6 mm in width, and 60 mm in height, creating a compact block for manifold assemblies. The valve weighs 4.5 kg (10 lb), which allows manual handling during installation.
Technical Specifications
Actuation Type
Pressure Operated
Adjustment Device
Screw With Locknut
External Drain
No
Fluid Compatibility
Petroleum Oils
Height
60 mm
Interface Standard
ISO 4401-AC-05-4-A (NFPA D05)
Leakage @315 Bar (50°c)
5 drops/min
Length
142.6 mm
Load Holding Leakage (70%)
0.35 ml/min
Max Flow Rate
120 L/min (32 USgpm)
Max Operating Pressure
315 bar (4500 psi)
Pilot Ratio
4:1
Port Function
B (Piloted From A)
Weight
4.5 kg (10 lb)
Width
71.6 mm
1620 Old Apex Road
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