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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| Max pressure (bar) | 500 |
| Max flow rate (l/min) | 40 |
| Body | stainless steel |
| Current intensity (A) | 5 (2) |
| Voltage (V) | 250 |
| Cable length (mm) | 1200 |
| PN | MAX PRESSURE (BAR) | INLET | OUTLET | BY-PASS | JIT DELIVERY |
|---|---|---|---|---|---|
| 216200275550 | 500 | G 3/8" F | G 1/2" F | G 3/8" F |
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