Description
Bell & Gossett 110125 Relief Valve – 3/4", 75 psi Set, 1,615,000 BTU/hr
Overview
The Bell & Gossett 110125 (790-75) is a high-performance ASME-certified safety relief valve engineered to safeguard hydronic heating systems. With a set pressure of 75 psi and capacity up to 1,615,000 BTU/hr, this 3/4" bronze valve is ideal for protecting both fired and unfired hot water vessels from pressure buildup.
Its diaphragm-assisted EPDM mechanism delivers faster response, minimal fouling, and reduces the chance of system shock caused by water flashing to steam.
Key Features
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ASME Section IV Certified – Approved for heating boilers
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High Capacity Relief – Discharges up to 1,615,000 BTU/hr
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Durable Construction – Bronze body with brass and EPDM internals
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Threaded (NPT) Connection – Easy installation into existing systems
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Anti-Fouling Design – Diaphragm-assisted to reduce buildup and ensure long-term performance
Specifications
| Feature | Details |
|---|---|
| Model | 110125 / 790-75 |
| Size | 3/4" |
| Set Pressure | 75 psi |
| BTU Discharge Capacity | 1,615,000 BTU/hr |
| Material | Bronze |
| Connection Type | Threaded (NPT) |
| Max Working Pressure | 125 PSIG (8.6 bar) |
| Max Temperature | 250°F (121°C) |
| Internal Components | Brass (wetted parts), EPDM diaphragm |
| Application | Hydronic Heating Systems |
| ASME Certified | Yes |
