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B&G ASME Safety Relief Valves


Protect against hazardous operating pressures

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 & 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.

Documentation: B_G ASME Safety Relief.pdf


Part No. Qty Unit Price
↓   Series 790 Bronze (3/4")   ↓
110120 790-15 ASME relief valve (15 PSIG) $81.18
110750 790-20 ASME relief valve (20 PSIG) $99.00
110751 790-25 ASME relief valve (25 PSIG) $99.00
110121 790-30 ASME relief valve (30 PSIG) $81.18
110122 790-36 ASME relief valve (36 PSIG) $81.18
110752 790-40 ASME relief valve (40 PSIG) $99.00
110123 790-45 ASME relief valve (45 PSIG) $81.18
110124 790-50 ASME relief valve (50 PSIG) $81.18
110753 790-55 ASME relief valve (55 PSIG) $99.00
110754 790-60 ASME relief valve (60 PSIG) $99.00
110755 790-65 ASME relief valve (65 PSIG) $99.00
110756 790-70 ASME relief valve (70 PSIG) $99.00
110125 790-75 ASME relief valve (75 PSIG) $81.18
110757 790-80 ASME relief valve (80 PSIG) $99.00
110758 790-85 ASME relief valve (85 PSIG) $99.00
110759 790-90 ASME relief valve (90 PSIG) $99.00
110760 790-95 ASME relief valve (95 PSIG) $99.00
110126 790-100 ASME relief valve (100 PSIG) $81.18
110761 790-105 ASME relief valve (105 PSIG) $99.00
110762 790-110 ASME relief valve (110 PSIG) $99.00
110763 790-115 ASME relief valve (115 PSIG) $99.00
110764 790-120 ASME relief valve (120 PSIG) $99.00
110127 790-125 ASME relief valve (125 PSIG) $81.18
↓   Series 1170 Bronze (1")   ↓
110765 1170-20 ASME relief valve (20 PSIG) $161.70
110766 1170-25 ASME relief valve (25 PSIG) $161.70
110129 1170-30 ASME relief valve (30 PSIG) $125.40
110130 1170-36 ASME relief valve (36 PSIG) $125.40
110767 1170-40 ASME relief valve (40 PSIG) $161.70
110131 1170-45 ASME relief valve (45 PSIG) $125.40
110132 1170-50 ASME relief valve (50 PSIG) $125.40
110768 1170-55 ASME relief valve (55 PSIG) $161.70
110769 1170-60 ASME relief valve (60 PSIG) $161.70
110770 1170-65 ASME relief valve (65 PSIG) $161.70
110771 1170-70 ASME relief valve (70 PSIG) $161.70
110133 1170-75 ASME relief valve (75 PSIG) $125.40
110772 1170-80 ASME relief valve (80 PSIG) $161.70
110773 1170-85 ASME relief valve (85 PSIG) $161.70
110774 1170-90 ASME relief valve (90 PSIG) $161.70
110775 1170-95 ASME relief valve (95 PSIG) $161.70
110134 1170-100 ASME relief valve (100 PSIG) $125.40
110776 1170-105 ASME relief valve (105 PSIG) $161.70
110777 1170-110 ASME relief valve (110 PSIG) $161.70
110778 1170-115 ASME relief valve (115 PSIG) $161.70
110779 1170-120 ASME relief valve (120 PSIG) $161.70
110135 1170-125 ASME relief valve (125 PSIG) $125.40
↓   Series 3301 Iron (1-1/2")   ↓
110033 3301-30 ASME relief valve (30 PSIG) $623.70
110080 3301-36 ASME relief valve (36 PSIG) $673.20
110081 3301-45 ASME relief valve (45 PSIG) $673.20
110082 3301-50 ASME relief valve (50 PSIG) $673.20
↓   Series 4100 Iron (2")   ↓
110034 4100-30 ASME relief valve (30 PSIG) $617.10
110084 4100-36 ASME relief valve (36 PSIG) $689.70
110085 4100-45 ASME relief valve (45 PSIG) $689.70
110086 4100-50 ASME relief valve (50 PSIG) $689.70

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