Description
Bell & Gossett 110121 – 790 30 ASME Relief Valve
SKU: 110121
Model: 790-3/4-30
3/4" NPT | 30 PSI Set Pressure | 790,000 BTU/hr Capacity | ASME Certified
Description
The Bell & Gossett 110121 (Model 790-3/4-30) is a high-efficiency ASME safety relief valve designed for hydronic heating systems, boilers, and other hot water applications. With a 30 PSI set point and 790,000 BTU/hr discharge capacity, this valve provides essential overpressure protection while maintaining dependable system performance.
Built from durable bronze, the 790 Series offers outstanding reliability, high capacity discharge, and easy installation for both commercial and residential use.
Features & Benefits
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ASME Section IV Compliant – Engineered and certified for use in heating boilers and vessels
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30 PSI Factory Set Pressure – Ideal for standard hot water and hydronic systems
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Extra-Large Relief Diaphragm – Ensures quick, positive response to excess pressure
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Diaphragm Assisted Design – Provides five times the effective area of typical “pop-type” valves
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Threaded 3/4" NPT Connection – Simple, secure installation
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Low Pressure Differential – Reduces risk of steam flash and water hammer
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Certified by National Board – Guaranteed performance and reliability
Specifications
| Attribute | Details |
|---|---|
| Model Number | 790-3/4-30 |
| SKU | 110121 |
| Valve Type | Relief Valve |
| Connection Size | 3/4" NPT |
| Pressure Set Point | 30 PSI |
| BTU Capacity | 790,000 BTU/hr |
| Material | Bronze |
| Connection Type | Threaded |
| ASME Certification | Yes – Section IV |
| Max Working Pressure | 125 PSI |
| Max Temperature | 250°F |
| Application | Hydronic Heating, Boilers |
