Zero Pressure Differential

Zero pressure differential solenoid valves, 3/8” to 2" NPT, for air, water, light oils, and steam. S20, S30, and S27 series with UL, CSA, CE, NEMA 4/4X, NEMA 7/9 explosion proof and NSF-61 approved for drinking water with options in normally closed and normally open versions, in 316 stainless steel, brass, and Nylon 6. Approvals vary by model

Direct-acting and piloted piston solenoid valves can operate at pressures as low as 0 psi in smaller sizes. For larger flows, Solenoid Valves Mart offers GC Valves high-flow models up to 2" pipe size for pressure differentials under 5 psi. Typical applications include:

  • Atmospheric and gravity-fed tank drains
  • Closed-loop cooling systems
  • Low-pressure gas, including UL Safety Rated valves
  • Irrigation systems.

Let us know if you need assistance finding your specific model number.

862 products

  • GC Valves H402GH02T1BF5Z5 – H40 Series Solenoid Valve, 2-Way NO, 1/4" NPT, Stainless Steel

    GC Valves H402GH02T1BF5Z5 – H40 Series Solenoid Valve, 2-Way NO, 1/4" NPT, Stainless Steel

    $391.44
    $498.21 $391.44
    Body: St. St. Size: 1/4" NPT Seal: PTFE Function: 2-Way NO
    Options
  • GC Valves H401GH02T1BF5Z5 – H40 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves H401GH02T1BF5Z5 – H40 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $287.70
    $366.16 $287.70
    Body: St. St. Size: 1/4" NPT Seal: PTFE Function: 2-Way NC
    Options
  • GC Valves SC961YH24VDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC961YH24VDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $882.63
    $1,124.12 $882.63
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC961YH24CBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC961YH24CBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $694.87
    $885.00 $694.87
    Body: Brass Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC961YH24CDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC961YH24CDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $992.56
    $1,264.12 $992.56
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC941YH24VBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC941YH24VBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $456.67
    $581.61 $456.67
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC961YH24CBBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC961YH24CBBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $576.71
    $734.50 $576.71
    Body: Brass Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC961YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC961YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $1,000.79
    $1,274.62 $1,000.79
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC951YH24VBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC951YH24VBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $565.91
    $720.76 $565.91
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC951YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC951YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $743.71
    $947.21 $743.71
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC941YH24VDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC941YH24VDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $588.41
    $749.41 $588.41
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC961YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC961YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $892.47
    $1,136.66 $892.47
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC921YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC921YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $333.60
    $424.89 $333.60
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC951YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC951YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $833.97
    $1,062.15 $833.97
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC951YH24CBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC951YH24CBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $574.09
    $731.16 $574.09
    Body: Brass Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC961YH24VBBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC961YH24VBBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $566.83
    $721.93 $566.83
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC931YH24CDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC931YH24CDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $505.30
    $643.56 $505.30
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC941YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC941YH24VDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $667.20
    $849.74 $667.20
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC931YH24VDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC931YH24VDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $441.31
    $562.07 $441.31
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC931YH24VBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC931YH24VBBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $342.50
    $436.22 $342.50
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC931YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC931YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $446.23
    $568.33 $446.23
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC941YH24VBBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC941YH24VBBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $377.87
    $481.27 $377.87
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC941YH24CDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC941YH24CDBA5F – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $673.77
    $858.13 $673.77
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves SC941YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC941YH24CDBA5 – SC9 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $595.00
    $757.80 $595.00
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options