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110121 | 790-30 790K Relief Valve | Bell & Gossett
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Overview
Details for 110121
790-30 790K Relief Valve
Features:- Installed in systems to discharge water should excessive pressure develop
- Features an extra large relief diaphragm to assure positive action
- ASME Safety Relief Valves
- Protect fired and unfired hot water vessels against hazardous operating pressures.
- Engineered in accordance with Section IV of the ASME boiler and pressure code for heating boilers with capacities certified by the National Board of Boiler and Pressure Vessel Inspectors.
- Offer the highest BTUH ratings available on the market today for valves in their class (790,000 to 5,999,000 BTUH)
- EPDM diaphragm operated (cast iron models) and diaphragm assisted (bronze models) have an effective area approximately 5 times greater than conventional "pop-type" relief valves to help overcome the effects of fouling.
- Low differential between opening and closing pressures helps to prevent conditions under which system water might flash to steam and cause hammering
- Model 790 and 1170 Operating Data & Construction
- Maximum working pressure 125 PSIG (8.6 bar)
Specifications
Item Number | 110121 |
Brand | Bell & Gossett |
Application | Heating |
ASME | Yes |
Capacity | 790000 BTU/hr |
Connection Type | Threaded |
Material | Bronze |
Max Pressure (PSI) | 125 |
Max Pressure (PSIG) | 125 |
Max. Working Pressure | 125 PSIG |
Pressure Set Point | 30 psi |
Size | 3/4" |
SubType | Pressure Release Valve |
Temperature Range (F) | 250°F Max |
Type | Relief Valve |
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