HomeSitemap P. 714.257.4800
DRV Direct Acting Relief Valves

Product Features and Specifications

  • General Product Information
    • schydraulic-drvreliefvalve
      COMPATIBLE WITH MOST FLUIDS
      ADJUSTABLE SENSING PRESSURE
      FACTORY SET PER CUSTOMER REQUEST
      PRESSURES FROM 100-PSI TO 60,000-PSI
      MODELS SUITABLE FOR BOTH LIQUID OR GAS

      SC Hydraulic Engineering direct acting relief valves are available in 1/4" NPT and 9/16-18 60 cone high pressure fitting for relieving pressures from 100 to 60,000 psi. The stainless steel construction makes these valves suitable for hydraulic fluids, water and gas applications. Standard seal material is Buna-N (-N). Substitute a "-V" for Viton or "-E" for EPR after the part number for these seals. Specify "-V" seals for gas applications.

  • Applications
    • Prevent downstream system overload
      Minimize effects of system back pressure
      Prevent pipeline or system component failure
      Maintain operating pressures within nominal pressure range
  • Dimensions
    • schydraulic-drvdirectactingreliefvalvedims
      DIRECT ACTING RELIEF VALVE
      Model No. Type Adjustment
      Range
      Connection Ports Service "L" Dim.
      Inch
      "A" Dim.
      Inch
      "B" Dim.
      Inch
      "D" Dim.
      Inch
      Inlet Tank
      DRV-010-N-025 A 100 to 1,000
      psig
      2ea
      1/4" NPT
      1/4" NPT Gas **
      Liquid
      7.31 Max 1.84 1.73 1.50
      DRV-050-N-025 A 500 to 5,000
      psig
      2ea
      1/4" NPT
      1/4" NPT Gas **
      Liquid
      7.31 Max 1.84 1.73 1.50
      DRV-100-N-025 A 1,000 to
      10,000 psig
      2ea
      1/4" NPT
      1/4" NPT Gas **
      Liquid
      7.85 Max 1.84 1.73 1.50
      DRV-200-N-HF4 B 5,000 to
      20,000 psig
      9/16-18
      HF4*
      9/16-18
      HF4*
      Gas **
      Liquid
      8.79 Max 1.76 2.02 2.00
      DRV-300-N-HF4 B 10,000 to
      30,000 psig
      9/16-18
      HF4*
      9/16-18
      HF4*
      Liquid 8.79 Max 1.76 2.02 2.00
      DRV-600-N-HF4 B 10,000 to
      60,000 psig
      9/16-18
      HF4*
      9/16-18
      HF4*
      Liquid 8.79 Max 1.76 2.02 2.00
  • Ordering
    • schydraulic-valveordering
      TABLE 1 Valve Series
      DRV Direct Acting Relief Valve
      TABLE 2 Max Operating Pressure Examples
      000 Less than 100 PSI
      001 100 PSI
      010 1,000 PSI
      011 1,100 PSI
      100 10,000 PSI
      110 11,000 PSI
      TABLE 3 Seal Compound (1)
      N Buna-N
      V Viton
      E EPR
      T PTFE
      TABLE 4 Pressure Port Size (1)
      025 1/4" NPT
      037 3/8" NPT
      050 1/2" NPT
      100 1" NPT
      HF4 High Pressure for 60 KSI
      HF9 High Pressure for 40 KSI
      Notes: (1) Not all options are available on all valves