Blower Relief Valves
NBR Series
3 Sizes: 2”, 2 1⁄2”, 3”
High Flow, Low Pressure Relief Application
Unique Seat Design Minimizes Leakage
NBR Has “T” Handle For Manual Testing
High Capacity
Adjustable Or Preset
Low Pressure And Vacuum
Tested For Set Pressure And Leakage
Construction:
Inlet, Piston, Stem, Spring Guide, Cap: Brass
Body: Cast Iron
Spring, Set Screws: Stainless Steel
Weighted Relief Valve
Available in 1 PSI – 15 PSI (Calibrated 0.5 PSI increment per removeable disc)
Low Maintenance
High Flow-Through Capacity
Virtually Chatter-Free
Simple Operation
Tamper Resistant
