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ST261 UNLOADER VALVE
SKU
200261500
Technical Spec
| Inlet | 3/8" Female |
|---|---|
| Outlet | 3/8" Female |
| Max LPM | 30 LPM |
| Material | Brass |
| Bar | 250 |
| Colour | Black |
| Max Temp °C | 80 |
| Weight | 0.62 |
| Country of Origin | Germany |
Description
This is the RM Suttner ST261 unloader valve, it has 3/8" female inlet and outlet. Unloader valves are essential for regulating the water pressure when pressure washing and prevent pressure from building up when the pressure washer is idling.
Datasheets
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Overview
ST261 Unloader valve
The Suttner ST261 Unloader Valve is a high-quality pressure-actuated valve designed to regulate system pressure and protect pressure washer pumps from over-pressurisation. Manufactured in Germany, it delivers reliable performance for professional and industrial high-pressure cleaning systems.
Key Features
- Regulates pressure to protect pumps and system components
- Pressure-actuated design for smooth bypass operation
- Durable brass construction for long service life
- 3/8" female inlet and outlet connections


Technical Specification
- Bypass: 1/4" F
- Inlet / Outlet: 3/8" F
- Material: Brass
- Max Pressure: 250bar / 580psi
- Max Temperature: 80°C
- Max Flow: 30 lpm
Export Information
- Commodity Code: 8481805940
- Country of Origin: Germany
- Weight: 0.62kg
| Pos | Part No | Description |
|---|---|---|
| 1 | 010001690 | Cap nut |
| 2 | 010001790 | Distance bushing |
| 3 | 200260520 | Section assembly close road |
| 4 | 200261524 | Section assembly seat |
| 5 | 010004250 | Restrictions Part |
| 6 | 200261529 | Section assembly piston |
| 7 | 050001350 | O-Ring 7,65x1,78 |
| 8 | 050000390 | Back Ring |
| 9 | 040001270 | Hex Socket head screw M4X5 |
| 10 | 050000051 | O-Ring 5X2,5 |
| 11 | 040000440 | Valve part |
| 12 | 060000310 | Spring |
| 13 | 020001290 | Valce cage |
| 14 | 010001700 | Protection screw |
| 16 | 020002850 | Bushing |
| 17 | 060000301 | Spring |
| 18 | 040001490 | Cilinder pin |
| 19 | 040000406 | pull rod |
| 20 | 040001610 | Hex nut M8X1 |
| 21 | 010004480 | Adjusting nut |
| 22 | 020001341 | Glide ring |
| 23 | 040001630 | Hex socket head screw |
| 24 | 100001700 | Adjusting nut |
| 25 | 040001621 | Nut M6 |
| 26 | 200260547 | Hand wheel complete |






















