Suttner ST-280 Unloader Valve, 4060 PSI 8.0 GPM

SKU 8.712-674.0 Category
  • PSI: 500-4060
  • GPM: 8.0
  • Max Temp: 176 ° F
  • 3/8″ FPT Inlet & Outlet
  • 1/4″ FPT Bypass
Genuine Suttner OEM Parts


Part Number: 8.712-674.0
Cross Reference Part Number(s): 462680, 87126740
Manufacturer’s Part Number (MPN): 200280510

This Suttner ST-280 Unloader Valve has a universal design that can be used on a large range of hot water- and cold water-pressure washers. This pressure regulating valve is designed with a forged brass body, and stainless steel valve. Operating pressure can be set from 500 – 4060 PSI, up to 8 GPM and 176 Degrees F temperature.


1/4" FPT

Connector / Inlet

3/8" FPT




3/8" FPT



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