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 S201GH02J7HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Stainless Steel

    GC Valves S201GH02J7HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Stainless Steel

    $1,246.77
    $1,586.80 $1,246.77
    Body: St. St. Size: 1 1/2" NPT Seal: Nitrile Function: 2-Way NC
    Options
  • GC Valves S201GH02J7GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Stainless Steel

    GC Valves S201GH02J7GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Stainless Steel

    $1,232.09
    $1,568.11 $1,232.09
    Body: St. St. Size: 1 1/4" NPT Seal: Nitrile Function: 2-Way NC
    Options
  • GC Valves S201GH02J7FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Stainless Steel

    GC Valves S201GH02J7FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Stainless Steel

    $1,053.86
    $1,341.26 $1,053.86
    Body: St. St. Size: 1" NPT Seal: Nitrile Function: 2-Way NC
    Options
  • GC Valves S201GH02J7EG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Stainless Steel

    GC Valves S201GH02J7EG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Stainless Steel

    $462.50
    $588.63 $462.50
    Body: St. St. Size: 3/4" NPT Seal: Nitrile Function: 2-Way NC
    Options
  • GC Valves S201GH02J7DG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Stainless Steel

    GC Valves S201GH02J7DG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Stainless Steel

    $415.53
    $528.85 $415.53
    Body: St. St. Size: 1/2" NPT Seal: Nitrile Function: 2-Way NC
    Options
  • GC Valves S201GH02J7CG4 – S20 Series Solenoid Valve, 2-Way NC, 3/8" NPT, Stainless Steel

    GC Valves S201GH02J7CG4 – S20 Series Solenoid Valve, 2-Way NC, 3/8" NPT, Stainless Steel

    $415.53
    $528.85 $415.53
    Body: St. St. Size: 3/8" NPT Seal: Nitrile Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02E7HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Stainless Steel

    GC Valves S201GH02E7HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Stainless Steel

    $1,289.44
    $1,641.10 $1,289.44
    Body: St. St. Size: 1 1/2" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02E7GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Stainless Steel

    GC Valves S201GH02E7GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Stainless Steel

    $1,259.57
    $1,603.09 $1,259.57
    Body: St. St. Size: 1 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02E7FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Stainless Steel

    GC Valves S201GH02E7FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Stainless Steel

    $1,062.77
    $1,352.62 $1,062.77
    Body: St. St. Size: 1" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02E7EG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Stainless Steel

    GC Valves S201GH02E7EG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Stainless Steel

    $465.07
    $591.91 $465.07
    Body: St. St. Size: 3/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02E7DG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Stainless Steel

    GC Valves S201GH02E7DG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Stainless Steel

    $430.64
    $548.09 $430.64
    Body: St. St. Size: 1/2" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02E7CG4 – S20 Series Solenoid Valve, 2-Way NC, 3/8" NPT, Stainless Steel

    GC Valves S201GH02E7CG4 – S20 Series Solenoid Valve, 2-Way NC, 3/8" NPT, Stainless Steel

    $430.64
    $548.09 $430.64
    Body: St. St. Size: 3/8" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves S201GH02CPFG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Reinforced Nylon

    GC Valves S201GH02CPFG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Reinforced Nylon

    $192.17
    $244.57 $192.17
    Body: Reinforced Nylon Size: 1" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves S201GH02CPEG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Reinforced Nylon

    GC Valves S201GH02CPEG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Reinforced Nylon

    $148.64
    $189.18 $148.64
    Body: Reinforced Nylon Size: 3/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves S201GH02CPDG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Reinforced Nylon

    GC Valves S201GH02CPDG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Reinforced Nylon

    $145.81
    $185.59 $145.81
    Body: Reinforced Nylon Size: 1/2" NPT Seal: EPDM Function: 2-Way NC
    Options
  • GC Valves S201GH02CPCG4 – S20 Series Solenoid Valve, 2-Way NC, 3/8" NPT, Reinforced Nylon

    GC Valves S201GH02CPCG4 – S20 Series Solenoid Valve, 2-Way NC, 3/8" NPT, Reinforced Nylon

    $145.81
    $185.59 $145.81
    Body: Reinforced Nylon Size: 3/8" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C7HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Stainless Steel

    GC Valves S201GH02C7HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Stainless Steel

    $1,261.91
    $1,606.07 $1,261.91
    Body: St. St. Size: 1 1/2" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C7GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Stainless Steel

    GC Valves S201GH02C7GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Stainless Steel

    $1,232.06
    $1,568.07 $1,232.06
    Body: St. St. Size: 1 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C7FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Stainless Steel

    GC Valves S201GH02C7FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Stainless Steel

    $1,036.90
    $1,319.69 $1,036.90
    Body: St. St. Size: 1" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C7EG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Stainless Steel

    GC Valves S201GH02C7EG5 – S20 Series Solenoid Valve, 2-Way NC, 3/4" NPT, Stainless Steel

    $442.09
    $562.66 $442.09
    Body: St. St. Size: 3/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C7DG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Stainless Steel

    GC Valves S201GH02C7DG4 – S20 Series Solenoid Valve, 2-Way NC, 1/2" NPT, Stainless Steel

    $407.49
    $518.61 $407.49
    Body: St. St. Size: 1/2" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C5HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Brass

    GC Valves S201GH02C5HJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/2" NPT, Brass

    $524.21
    $667.19 $524.21
    Body: Brass Size: 1 1/2" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C5GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Brass

    GC Valves S201GH02C5GJ2 – S20 Series Solenoid Valve, 2-Way NC, 1 1/4" NPT, Brass

    $516.51
    $657.38 $516.51
    Body: Brass Size: 1 1/4" NPT Seal: EPDM Function: 2-Way NC
    Options
  • For Steam
    GC Valves S201GH02C5FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Brass

    GC Valves S201GH02C5FG9 – S20 Series Solenoid Valve, 2-Way NC, 1" NPT, Brass

    $358.00
    $455.63 $358.00
    Body: Brass Size: 1" NPT Seal: EPDM Function: 2-Way NC
    Options