Unloader & Relief Valves
Showing 33–48 of 92 results
Category Products
General Products
Interpump W3 Controlset – 16-21 Lpm
- 275 Bar max pressure
- 16-21 Lpm flow
- 75°C max water temperature
- Trapped pressure valve & bypass
- Adjustable chemical injection
- Fits IP 44-47-49-50-52-53...
- ...58-59-60-63 series pumps
- Brass & st.steel construction
- 1/2"BSPF inlet
- 3/8"BSPM outlet
Quick View- 275 Bar max pressure
- 16-21 Lpm flow
- 75°C max water temperature
- Trapped pressure valve & bypass
- Adjustable chemical injection
- Fits IP 44-47-49-50-52-53…
- …58-59-60-63 series pumps
- Brass & st.steel construction
- 1/2″BSPF inlet
- 3/8″BSPM outlet
Interpump W3 Controlset – 7-10 Lpm
- 275 Bar max pressure
- 7-10 Lpm flow
- 75°C max water temperature
- Trapped pressure valve & bypass
- Adjustable chemical injection
- Fits IP 44-47-49-50-52-53...
- ...58-59-60-63 series pumps
- Brass & st.steel construction
- 1/2"BSPF inlet
- 3/8"BSPM outlet
Quick View- 275 Bar max pressure
- 7-10 Lpm flow
- 75°C max water temperature
- Trapped pressure valve & bypass
- Adjustable chemical injection
- Fits IP 44-47-49-50-52-53…
- …58-59-60-63 series pumps
- Brass & st.steel construction
- 1/2″BSPF inlet
- 3/8″BSPM outlet
MG4000 Unloader Valve
- 280 Bar rated pressure
- 40 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- Brass & steel construction
- Blue spring with regulator knob
- 3/8"BSPF inlet
- 3/8"BSPF outlet
- 3/8"BSPF bypass
- 1/4"BSPF gauge port
Quick View- 280 Bar rated pressure
- 40 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- Brass & steel construction
- Blue spring with regulator knob
- 3/8″BSPF inlet
- 3/8″BSPF outlet
- 3/8″BSPF bypass
- 1/4″BSPF gauge port
Pratissoli RA2 Unloader Valve
- 210 Bar max pressure
- 20-230 Lpm flow
- 85°C max water temperature
- Trapped pressure valve
- Brass body
- Pressure adjusting knob
- 1"BSPF inlet
- 3/4"BSPF outlet
- 1"1/4BSPF bypass
- Call sales office for installation advice
Quick View- 210 Bar max pressure
- 20-230 Lpm flow
- 85°C max water temperature
- Trapped pressure valve
- Brass body
- Pressure adjusting knob
- 1″BSPF inlet
- 3/4″BSPF outlet
- 1″1/4BSPF bypass
- Call sales office for installation advice
Pratissoli RA2L Unloader Valve
- 210 Bar max pressure
- 20-230 Lpm flow
- 85°C max water temperature
- Trapped pressure valve
- Brass body
- Manual bypass lever
- Pressure adjusting knob
- 1"BSPF inlet
- 3/4"BSPF outlet
- 1"1/4BSPF bypass
- Call sales office for installation advice
Quick View- 210 Bar max pressure
- 20-230 Lpm flow
- 85°C max water temperature
- Trapped pressure valve
- Brass body
- Manual bypass lever
- Pressure adjusting knob
- 1″BSPF inlet
- 3/4″BSPF outlet
- 1″1/4BSPF bypass
- Call sales office for installation advice
Pratissoli VP12 Foot Operated Bypass Valve
- 1500 Bar max pressure
- 80 Lpm max flow
- 30° max water temperature
- 3/8"F threaded inlet
- 3/8"F threaded outlet
- 3/8"F threaded bypass
- Can be mounted inline or offline
- Call sales office for installation advice
Quick View- 1500 Bar max pressure
- 80 Lpm max flow
- 30° max water temperature
- 3/8″F threaded inlet
- 3/8″F threaded outlet
- 3/8″F threaded bypass
- Can be mounted inline or offline
- Call sales office for installation advice
Pulsar 4RV Unloader Valve
- 280 Bar rated pressure
- 40 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- Brass & steel construction
- Blue spring with regulator knob
- 3/8"BSPF inlet
- 3/8"BSPF outlet
- 3/8"BSPF bypass
Quick View- 280 Bar rated pressure
- 40 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- Brass & steel construction
- Blue spring with regulator knob
- 3/8″BSPF inlet
- 3/8″BSPF outlet
- 3/8″BSPF bypass
Pulsar Zero Flow Sensitive Unloader Valve
- 280 Bar rated pressure
- 9-40 Lpm flow
- 60°C rated water temperature
- Flow sensitive valve
- Brass & st.steel construction
- 3/8"BSPF inlet
- 3/8"BSPF outlet
- 3/8"BSPF bypass
Quick View- 280 Bar rated pressure
- 9-40 Lpm flow
- 60°C rated water temperature
- Flow sensitive valve
- Brass & st.steel construction
- 3/8″BSPF inlet
- 3/8″BSPF outlet
- 3/8″BSPF bypass
RF120/280 Foot Operated On/Off Valve
- 280 Bar rated pressure
- 120 Lpm max flow
- 90°C rated temperature
- Brass internals
- 3/4"BSPF inlet
- 3/4"BSPF outlet
Quick View- 280 Bar rated pressure
- 120 Lpm max flow
- 90°C rated temperature
- Brass internals
- 3/4″BSPF inlet
- 3/4″BSPF outlet
RF80/500 Foot Operated On/Off Valve
- 500 Bar rated pressure
- 80 Lpm max flow
- 90°C rated temperature
- Brass internals
- 1/2"BSPF inlet
- 1/2"BSPF outlet
Quick View- 500 Bar rated pressure
- 80 Lpm max flow
- 90°C rated temperature
- Brass internals
- 1/2″BSPF inlet
- 1/2″BSPF outlet
UV31 Unloader Valve & Pressure Switch
- 220 Bar rated pressure
- 45 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- 5A - 250V microswitch
- Brass & steel construction
- Pressure adjusting knob
- 3/8" & 1/2"BSPF inlets
- 3/8"BSPF outlet
- 3/8"BSPF bypass
- 1/4"BSPF gauge port
Quick View- 220 Bar rated pressure
- 45 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- 5A – 250V microswitch
- Brass & steel construction
- Pressure adjusting knob
- 3/8″ & 1/2″BSPF inlets
- 3/8″BSPF outlet
- 3/8″BSPF bypass
- 1/4″BSPF gauge port
UV31 Unloader Valve & Pressure Switch
- 280 Bar rated pressure
- 45 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- 5A - 250V microswitch
- Brass & steel construction
- Pressure adjusting knob
- 3/8" & 1/2"BSPF inlets
- 3/8"BSPF outlet
- 3/8"BSPF bypass
- 1/4"BSPF gauge port
Quick View- 280 Bar rated pressure
- 45 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- 5A – 250V microswitch
- Brass & steel construction
- Pressure adjusting knob
- 3/8″ & 1/2″BSPF inlets
- 3/8″BSPF outlet
- 3/8″BSPF bypass
- 1/4″BSPF gauge port
VB10/2 Soft Start Unloader Valve
- 220 Bar rated pressure
- 30 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve - Soft start
- Panel mount
- Brass body
- Stainless steel piston
- Plastic regulator knob
- 3/8"BSPF inlet
- 3/8"BSPF outlet
- 3/8"BSPF bypass
Quick View- 220 Bar rated pressure
- 30 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve – Soft start
- Panel mount
- Brass body
- Stainless steel piston
- Plastic regulator knob
- 3/8″BSPF inlet
- 3/8″BSPF outlet
- 3/8″BSPF bypass
VB130 Unloader Valve
- 160 Bar rated pressure
- 25 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- Brass & steel construction
- White spring, no regulator knob
- 3/8"BSPM inlet
- 3/8"BSPM outlet
- 3/8"BSPF bypass
Quick View- 160 Bar rated pressure
- 25 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- Brass & steel construction
- White spring, no regulator knob
- 3/8″BSPM inlet
- 3/8″BSPM outlet
- 3/8″BSPF bypass
VB16 Soft Start Unloader Valve
- 500 Bar rated pressure
- 80 Lpm max flow
- 90°C rated water temperature
- Flow sensitive valve
- Soft Start action
- Brass & steel construction
- 1/2"BSPF inlet
- 1/2"BSPF outlet
- 1/2"BSPF bypass
- 1/4"BSPF gauge port
Quick View- 500 Bar rated pressure
- 80 Lpm max flow
- 90°C rated water temperature
- Flow sensitive valve
- Soft Start action
- Brass & steel construction
- 1/2″BSPF inlet
- 1/2″BSPF outlet
- 1/2″BSPF bypass
- 1/4″BSPF gauge port
VB26 Unloader Valve – AISI 316
- 280 Bar rated pressure
- 80 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- AISI 316 stainless steel
- Plastic regulator knob
- 1/2"BSPF inlet
- 1/2"BSPF outlet
- 1/2"BSPF bypass
Quick View- 280 Bar rated pressure
- 80 Lpm max flow
- 90°C rated water temperature
- Trapped pressure valve
- AISI 316 stainless steel
- Plastic regulator knob
- 1/2″BSPF inlet
- 1/2″BSPF outlet
- 1/2″BSPF bypass
