UNLOADERS
Industrial Duty Pressure Regulating Unloaders for Trigger Gun Applications
Primary Pressure Control: Sets and maintains consistent system pressure.
Energy and System Savings: Allows the pump to run at low pressure when downstream flow is interrupted.
Check Valve Mechanism: Contains a check valve that traps pressure between the closed downstream device (shut-off gun) and the unloader.
Internal Piston Operation: When pressure is trapped, the internal piston opens, enabling the pump to unload at low pressure.
Unload at Low Pressure: Facilitates pump operation at lower pressure levels during periods of reduced demand.
Seamless Return to Operating Pressure: When the shut-off gun is reopened, the system seamlessly returns to its designated operating pressure.
| Pressure range | 100 psi to 7.250 psi |
|---|---|
|
Flow range |
0.49 lpm to 454 lpm |
|
Material |
brass, 304, and 316 stainless steel |
|
Typical usage |
Used for single pump, single or multiple-gun, and nozzle applications. |
Brass
| MODEL | MIN FLOW | MAX FLOW | MIN PRESSURE | MAX PRESSURE | INLET/DISCHARGE PORTS | BYPASS PORTS |
|---|---|---|---|---|---|---|
| 2.00 GPM / 8.00 LPM | 5.00 GPM / 19.00 LPM | 700 PSI / 49 BAR | 3500 PSI / 245 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) | |
| 3.00 GPM / 7.60 LPM | 5.00 GPM / 19.00 LPM | 700 PSI / 50 BAR | 4000 PSI / 275 BAR | 1/2'' NPT(F) / 3/8'' NPT(F) | Built-in Channel | |
| 0.50 GPM / 1.90 LPM | 6.00 GPM / 22.70 LPM | 100 PSI / 7 BAR | 2000 PSI / 138 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) | |
| 0.50 GPM / 1.90 LPM | 6.00 GPM / 23.00 LPM | 100 PSI / 7 BAR | 2000 PSI / 138 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 1/4'' Barb | |
| 0.50 GPM / 1.90 LPM | 6.00 GPM / 23.00 LPM | 100 PSI / 7 BAR | 4000 PSI / 275 BAR | 1/2'' NPT(F) / 3/8'' NPT(F) | Built-in Channel | |
| 0.50 GPM / 1.90 LPM | 6.50 GPM / 25.00 LPM | 400 PSI / 28 BAR | 1000 PSI / 69 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) | |
| 0.50 GPM / 1.90 LPM | 6.60 GPM / 25.00 LPM | 232 PSI / 16 BAR | 2320 PSI / 160 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) | |
| 0.50 GPM / 1.90 LPM | 8.00 GPM / 30.00 LPM | 100 PSI / 7 BAR | 1000 PSI / 69 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) | |
| 0.50 GPM / 1.90 LPM | 8.00 GPM / 30.00 LPM | 250 PSI / 18 BAR | 2000 PSI / 138 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) | |
| 0.50 GPM / 1.90 LPM | 8.00 GPM / 30.00 LPM | 319 PSI / 22 BAR | 3190 PSI / 220 BAR | 3/8'' BSPP(M) / 3/8'' BSPP(M) | 3/8'' BSPP(F) | |
| 2.50 GPM / 9.50 LPM | 10.50 GPM / 40.00 LPM | 232 PSI / 16 BAR | 2320 PSI / 160 BAR | 3/8'' NPT(F) / 3/8'' NPT(F) | 3/8'' NPT(F) | |
| 2.50 GPM / 9.50 LPM | 10.50 GPM / 40.00 LPM | 406 PSI / 28 BAR | 4060 PSI / 280 BAR | 3/8'' NPT(F) / 3/8'' NPT(F) | 3/8'' NPT(F) | |
| 2.00 GPM / 7.60 LPM | 10.50 GPM / 40.00 LPM | 507 PSI / 35 BAR | 5076 PSI / 350 BAR | 3/8'' BSPP(M) / 3/8'' BSPP(F) | 1/2'' BSPP(F) | |
| 1.00 GPM / 3.80 LPM | 21.00 GPM / 80.00 LPM | 406 PSI / 28 BAR | 2320 PSI / 160 BAR | 1/2'' NPT(F) / 1/2'' NPT(F) | 1/2'' NPT(F) | |
| 1.00 GPM / 3.80 LPM | 21.00 GPM / 80.00 LPM | 406 PSI / 28 BAR | 4060 PSI / 280 BAR | 1/2'' NPT(F) / 1/2'' NPT(F) | 1/2'' NPT(F) | |
| 10.00 GPM / 38.00 LPM | 52.80 GPM / 200.00 LPM | 218 PSI / 15 BAR | 2175 PSI / 150 BAR | 1'' NPT(F) / 1'' NPT(F) | 1'' NPT(F) | |
| 10.00 GPM / 38.00 LPM | 52.80 GPM / 200.00 LPM | 450 PSI / 31 BAR | 2500 PSI / 172 BAR | 1'' NPT(F) / 1'' NPT(F) | 1'' NPT(F) | |
| 10.00 GPM / 38.00 LPM | 52.80 GPM / 200.00 LPM | 406 PSI / 28 BAR | 4060 PSI / 280 BAR | 1'' BSPP(F) / 1'' BSPP(F) | 1'' BSPP(F) | |
| 50.00 GPM / 189.00 LPM | 120.00 GPM / 450.00 LPM | 290 PSI / 20 BAR | 2900 PSI / 200 BAR | 1 1/4'' BSPP(F) / 1 1/4'' BSPP(F) | 1 1/2'' BSPP(F) |
Stainless Steel 316
| MODEL | MIN FLOW | MAX FLOW | MIN PRESSURE | MAX PRESSURE | INLET/DISCHARGE PORTS | BYPASS PORTS |
|---|---|---|---|---|---|---|
| 0.50 GPM / 1.90 LPM | 6.00 GPM / 23.00 LPM | 100 PSI / 7 BAR | 2000 PSI / 138 BAR | 3/8'' NPT(M) / 3/8'' NPT(M) | 3/8'' NPT(F) |
Stainless Steel 316
| MODEL | MIN FLOW | MAX FLOW | MIN PRESSURE | MAX PRESSURE | INLET/DISCHARGE PORTS | BYPASS PORTS |
|---|---|---|---|---|---|---|
| 0.00 GPM / 0.00 LPM | 15.90 GPM / 60.00 LPM | 1160 PSI / 80 BAR | 11600 PSI / 800 BAR | 1/2'' BSPP(F) / 1/2'' BSPP(F) | 1/2'' BSPP(F) | |
| 1.00 GPM / 3.80 LPM | 21.00 GPM / 80.00 LPM | 218 PSI / 15 BAR | 2175 PSI / 150 BAR | 1/2'' NPT(F) / 1/2'' NPT(F) | 1/2'' NPT(F) | |
| 1.00 GPM / 3.80 LPM | 21.00 GPM / 80.00 LPM | 406 PSI / 28 BAR | 4060 PSI / 280 BAR | 1/2'' NPT(F) / 1/2'' NPT(F) | 1/2'' NPT(F) | |
| 1.00 GPM / 3.80 LPM | 21.00 GPM / 80.00 LPM | 580 PSI / 40 BAR | 5800 PSI / 400 BAR | 1/2'' NPT(F) / 1/2'' NPT(F) | 1/2'' NPT(F) |
