ST-261S W/Switch




  • Switch Specs: 5A @ 125 VAC or 3A @ 250 VAC
  • Pressure Range: up to 3650 PSI
  • Flow Range: up to 8 GPM
  • Temperature: 176 F
  • Inlet: 3/8″ FPT
  • Outlet: 3/8″ FPT
  • Gauge Port: 1/4″ FPT
  • The micro switch is an STSP-NC A.C. switch mounted in the place of the bypass fitting. The switch allows the actuation of solenoids, display lights, timers, or other electrical devices. Switch wired “Normally Closed” and is opened by the unloader piston during the bypass mode. The switch is ideal for solenoid activation, time delay shutdown systems, sequencers, and other related systems
SKU: 2379 Category:





  • Regulating unloader valve
  • Tamper-resistant operator adjustable valve which allows limiting setting on both maximum and minimum pressure
  • Ideal for steam combination applications
  • Straight flow-through design minimizes pressure loss through the valve
  • Working components constructed of high-grade stainless steel, Teflon, and Viton seals for maximum heat/chemical resistance
  • The internal bypass valve can be easily accessed and repaired without removing ST-261S from the unit
  • True to Suttner design tradition, the valve is cartridge type and installed in minutes
  • The pressure adjustment knob can be removed if desired



**ACR Products recommends you do not adjust your pressure from your unloader valve without a pressure gauge installed to ensure no backpressure is building in the pump.**

Additional information

Weight1.70 lbs
Dimensions9.5 × 4 × 2 in


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