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R+M Suttner

ST 275

R+M ST275 unloader valve

The ST-275 unloader valve is designed for high-pressure cleaning applications up to 500 bar and 40 l/min. Made entirely of stainless steel, it offers outstanding durability and corrosion resistance.

Its automatic bypass system reduces line pressure to 70% when the spray gun is closed, enhancing safety and operator comfort. The spring-loaded proportional valve design allows smooth, precise and continuous pressure adjustment.

Featuring a high-performance ceramic ball and an innovative sealing system with no moving high-pressure seals, the ST-275 delivers extended service life. A pressure adjustment handwheel and switch can also be retrofitted.

Ideal for industrial cleaning, sandblasting, paint removal and all applications requiring very high pressure.
Made in Germany.

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Technical data

Max pressure (bar) 500
Max flow rate (l/min) 40
Body stainless steel

Part numbers

PN MAX PRESSURE (BAR) INLET OUTLET BY-PASS JIT DELIVERY
216200275500 500 G 3/8" F G 1/2" F G 3/8" F Check

MORE INFORMATION

  • Brand: R+M
  • Plastic knob available on request (PN 216200280492)
  • Made in Germany