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 M215GH02V5DG5 – M21 Series Solenoid Valve, 3-Way Diverting, 1/2" NPT, Brass

    GC Valves M215GH02V5DG5 – M21 Series Solenoid Valve, 3-Way Diverting, 1/2" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 1/2" NPT Seal: FKM Function: 3-Way Diverting
    Options
  • GC Valves SC431YH24VKBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC431YH24VKBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $605.44
    $771.11 $605.44
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC421YH24VKBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC421YH24VKBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $403.61
    $514.04 $403.61
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC312YH24VIAA3 – SC3 Series Solenoid Valve, 2-Way NO, 1/8" NPT, Reinforced Nylon

    GC Valves SC312YH24VIAA3 – SC3 Series Solenoid Valve, 2-Way NO, 1/8" NPT, Reinforced Nylon

    $112.83
    $143.69 $112.83
    Body: Reinforced Nylon Size: 1/8" NPT Seal: FKM Function: 2-Way NO
    Options
  • GC Valves M215GH02V5CG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/8" NPT, Brass

    GC Valves M215GH02V5CG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/8" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/8" NPT Seal: FKM Function: 3-Way Diverting
    Options
  • For Steam
    GC Valves M215GH02C5DG5 – M21 Series Solenoid Valve, 3-Way Diverting, 1/2" NPT, Brass

    GC Valves M215GH02C5DG5 – M21 Series Solenoid Valve, 3-Way Diverting, 1/2" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 1/2" NPT Seal: EPDM Function: 3-Way Diverting
    Options
  • GC Valves SC411YH24VKBA6 – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    GC Valves SC411YH24VKBA6 – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Brass

    $182.13
    $231.96 $182.13
    Body: Brass Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves M215GH02N5EG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/4" NPT, Brass

    GC Valves M215GH02N5EG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/4" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/4" NPT Seal: Nitrile Function: 3-Way Diverting
    Options
  • GC Valves SC441YH24VDBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC441YH24VDBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $880.33
    $1,121.19 $880.33
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC311YH24VIBA6 – SC3 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Reinforced Nylon

    GC Valves SC311YH24VIBA6 – SC3 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Reinforced Nylon

    $76.74
    $97.74 $76.74
    Body: Reinforced Nylon Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC421YH24VDBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC421YH24VDBA6F – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $440.16
    $560.59 $440.16
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves SC411YH24VDBA6 – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    GC Valves SC411YH24VDBA6 – SC4 Series Solenoid Valve, 2-Way NC, 1/4" NPT, Stainless Steel

    $200.39
    $255.21 $200.39
    Body: St. St. Size: 1/4" NPT Seal: FKM Function: 2-Way NC
    Options
  • GC Valves M215GH02V5EG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/4" NPT, Brass

    GC Valves M215GH02V5EG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/4" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/4" NPT Seal: FKM Function: 3-Way Diverting
    Options
  • For Steam
    GC Valves M214GH02C5EG5 – M21 Series Solenoid Valve, 3-Way NO, 3/4" NPT, Brass

    GC Valves M214GH02C5EG5 – M21 Series Solenoid Valve, 3-Way NO, 3/4" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/4" NPT Seal: EPDM Function: 3-Way NO
    Options
  • GC Valves M214GH02V5EG5 – M21 Series Solenoid Valve, 3-Way NO, 3/4" NPT, Brass

    GC Valves M214GH02V5EG5 – M21 Series Solenoid Valve, 3-Way NO, 3/4" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/4" NPT Seal: FKM Function: 3-Way NO
    Options
  • NSF Certified
    GC Valves NS312GH02C3BE1 – NS31 Series Solenoid Valve, 2-Way NO, 1/4" NPT, Stainless Steel

    GC Valves NS312GH02C3BE1 – NS31 Series Solenoid Valve, 2-Way NO, 1/4" NPT, Stainless Steel

    $168.77
    $214.80 $168.77
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NO
    Options
  • NSF Certified
    GC Valves NS312GH02C3BC7 – NS31 Series Solenoid Valve, 2-Way NO, 1/4" NPT, Stainless Steel

    GC Valves NS312GH02C3BC7 – NS31 Series Solenoid Valve, 2-Way NO, 1/4" NPT, Stainless Steel

    $168.77
    $214.80 $168.77
    Body: St. St. Size: 1/4" NPT Seal: EPDM Function: 2-Way NO
    Options
  • GC Valves M213GH02N5CG5 – M21 Series Solenoid Valve, 3-way NC, 3/8" NPT, Brass

    GC Valves M213GH02N5CG5 – M21 Series Solenoid Valve, 3-way NC, 3/8" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/8" NPT Seal: Nitrile Function: 3-way NC
    Options
  • For Steam
    GC Valves M213GH02C5DG5 – M21 Series Solenoid Valve, 3-way NC, 1/2" NPT, Brass

    GC Valves M213GH02C5DG5 – M21 Series Solenoid Valve, 3-way NC, 1/2" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 1/2" NPT Seal: EPDM Function: 3-way NC
    Options
  • GC Valves M213GH02V5CG5 – M21 Series Solenoid Valve, 3-way NC, 3/8" NPT, Brass

    GC Valves M213GH02V5CG5 – M21 Series Solenoid Valve, 3-way NC, 3/8" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/8" NPT Seal: FKM Function: 3-way NC
    Options
  • GC Valves M214GH02N5CG5 – M21 Series Solenoid Valve, 3-Way NO, 3/8" NPT, Brass

    GC Valves M214GH02N5CG5 – M21 Series Solenoid Valve, 3-Way NO, 3/8" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/8" NPT Seal: Nitrile Function: 3-Way NO
    Options
  • For Steam
    GC Valves M213GH02C5EG5 – M21 Series Solenoid Valve, 3-way NC, 3/4" NPT, Brass

    GC Valves M213GH02C5EG5 – M21 Series Solenoid Valve, 3-way NC, 3/4" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/4" NPT Seal: EPDM Function: 3-way NC
    Options
  • For Steam
    GC Valves M215GH02C5CG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/8" NPT, Brass

    GC Valves M215GH02C5CG5 – M21 Series Solenoid Valve, 3-Way Diverting, 3/8" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/8" NPT Seal: EPDM Function: 3-Way Diverting
    Options
  • GC Valves M214GH02V5CG5 – M21 Series Solenoid Valve, 3-Way NO, 3/8" NPT, Brass

    GC Valves M214GH02V5CG5 – M21 Series Solenoid Valve, 3-Way NO, 3/8" NPT, Brass

    $514.83
    $655.24 $514.83
    Body: Brass Size: 3/8" NPT Seal: FKM Function: 3-Way NO
    Options