Part number 940-561 is a shutoff valve used to control the flow of fluid in compatible sprayer systems. This valve allows the operator to start or stop material flow at a convenient point in the system. It is compatible with Commander and PowrTex 15-1 models. Replacing a leaking or difficult-to-operate shutoff valve restores positive flow control and prevents material waste.
| Part Number | 940-561 |
|---|---|
| Part Description | Shutoff Valve |
| Fits | Commander; PowrTex 15-1 |
| Condition | New |
The 940-561 shutoff valve is a manually operated valve designed to control the flow of coating material in compatible sprayer systems. It is specifically engineered for use with Commander and PowrTex 15-1 models. The valve provides a reliable means to start or stop fluid flow at a convenient location, such as near the gun or at the pump outlet. This allows the operator to isolate sections of the system for maintenance, change tips, or stop flow without shutting down the entire pump. The valve typically features a ball or gate mechanism that provides a full, unrestricted flow when open and a positive seal when closed. It is constructed from materials resistant to corrosion and wear from common paints and solvents. Over time, shutoff valves can develop leaks due to worn seals, debris damage, or corrosion. They may also become difficult to operate due to buildup of dried material. Symptoms of a faulty valve include visible leakage when closed, difficulty turning the handle, or failure to fully stop flow. Replacing a worn or leaking valve with this genuine part restores positive shutoff capability. This prevents material waste, reduces cleanup time, and improves safety. Using the correct replacement ensures proper fit and reliable long-term performance.
| Flow control | Starts and stops fluid flow on demand |
|---|---|
| System isolation | Allows maintenance without draining entire system |
| Leak prevention | Provides positive seal when closed |
| Leakage | Fluid seeps through valve when closed |
|---|---|
| Difficult operation | Handle hard to turn or stuck |
| Corrosion or damage | Visible wear or material degradation |
| Failure to shut off | Flow continues when valve is closed |
Part number 940-561 is compatible with the following sprayer models. Always verify using your equipment's serial number and parts manual.
| Brand / Series | Specific Models |
|---|---|
| Commander | All models (verify specifications) |
| PowrTex | 15-1 |
When replacing the shutoff valve, inspecting these associated components can help ensure a complete repair.
Check for thread damage or corrosion at valve connections.
Inspect for wear if valve uses replaceable seals.
Clean or replace if debris may have damaged valve.
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