Catalog: Heating | |
| 16 2 1/2 fig no price purge and balance valves fig no size price 8800 expansion tank ... | |
| duff co watts relief valves heating watts 374a special pressure hot ... water boiler relief valve 3/4 only 550,000 btu watts 530 ... calibrated pressure relief valve calibrated adjustment feature for ... setting valve to relief pressure adjustable range 50- ... as by-pass thermal expansion relief valve 3/4 fig no 3842 price fig no 3774 ... asme rated self-closing t&p relief valve for water heaters up to 100,000 btu/hr ... extends the effective life of the valve of overcoming problems created by ... 340 a.s.m.e rated ansi z21.22 relief valves and automatic gas shut-off devices ... safety fuse plug vacuum relief valve vent in drain tamper-resistant bonnet ... | |
