• Pressure: Up to 3625 PSI
  • Flow rate: Up to 8 GPM
  • Temperature: Up to 176 F
  • Inlet: 3/8″ FPT
  • Outlet: 3/8″ FPT
  • Bypass: 1/4″ FPT
  • Gauge Port: 1/4″ FPT
SKU: 1396 Category:


ST-261 Suttner Unloader


  • 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 unloader 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 the unloader 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

The ST-261 can be panel mounted

**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

Weight1.4 lbs
Dimensions5.5 × 3.5 × 1.75 in


There are no reviews yet.

Be the first to review “ST-261”

Your email address will not be published. Required fields are marked *