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Bell & Gossett 113247 Brass DB-3/4 DB-Differential Bypass Valve

$ 81.60

The differential bypass valve is used in systems where heating loads may be excluded from the circuit as zone valves close. It controls the excess flow in the system by acting as a bypass while ensuring adequate flow to the remaining open circuits. The differential bypass valve helps reduce velocity noise caused by excess flow through the circuits while maintaining the pump head at a constant value.

Operating Data
Maximum Working Pressure: 150 PSIG (1,034 kPa)
Maximum Operating Temperature: 230°F (110°C)
Adjustment Range: 2 to 10 PSI

Materials of Construction
Valve Body: Brass
Seals: EPDM
Spring: Stainless Steel
Knob: ABS

For hydronic systems utilizing zone valve:
Controls excess flow in the system when there is reduction in demand
Available in 3/4" connection
All brass body with non-ferrous internals

Click to View Spec Sheet

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