VB80A-150-SS Stainless Unloader | 2500 PSI, 21 GPM, 1/2 in. Female Ports
The VB80A-150-SS is a stainless steel unloader rated 2,500 PSI at up to 21 GPM, with 1/2 in. female inlet, outlet and bypass ports. When the trigger closes, it sends pump flow to bypass so the pump is not dead-headed, and when the trigger opens, full pressure returns.
Stainless holds up where a brass unloader corrodes or dezincifies: caustic cleaners, sanitizers, chlorides and the daily washdown of food, beverage, chemical and marine plants. At 21 GPM it handles high-flow skids and multi-station systems.
Where It Works Best
- Food and beverage sanitation and washdown systems
- Chemical and process plant cleaning
- Marine and saltwater-exposed equipment
- High-flow stainless pump skids up to 21 GPM
Will It Fit My System?
- Pressure and flow: for systems up to 2,500 PSI and 21 GPM.
- Ports: 1/2 in. female inlet, outlet and bypass.
- Temperature: up to 158°F.
- Need BSP threads? The VB80-170-SS is the 2,450 PSI, 21 GPM stainless sibling with BSP ports.
Not sure it fits? Text a specialist at (505) 226-6061 with your pump model and flow and we’ll confirm.
Good to Know
- Set the working pressure with a gauge at the pump outlet.
- Keep a thermal relief valve on the pump to protect it during long bypass periods.
- A stainless unloader pairs best with a stainless-head pump, so the whole wet end resists corrosion.
VB80A-150-SS Specifications
- Model: VB80A-150-SS
- Max Pressure: 2,500 PSI
- Max Flow: 21 GPM
- Inlet / Outlet / Bypass: 1/2 in. female
- Max Temperature: 158°F
- Body: Stainless steel
- Weight: 2.5 lbs
Shipping: Usually ships via UPS in 1 to 3 days.









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