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category:
Relief Valves
manufacturer:
McDonnell & Miller
mpn:
182925
subcategory:
Pressure Relief Valves
type:
260 Series Relief Valves
weight:
17.3
Product Overview
For water tanks and hydronic heating systems
Specifications- Protects against over-pressure
- Minimizes hammering with flash steam
- Low differential pressure - 3 psi (.21 kg/cm2) between
- opening and closing
- Meets ASME Pressure Vessel and Boiler Code, Section IV
- Sealed spring chamber prevents scale or sediment build-up around seal
- 1-1/2" NPT Inlet and 2" NPT Discharge
- Cast iron body, brass seat
- Maximum temperature 250 Deg. F (121 Deg. C)
- Maximum operating pressure range 30 - 50 psig (2.1 - 3.5 kg/cm2)
Additional Information
Pressure Set Point50 psi
Capacity4900000 BTU/hr
ASME Rating (BTU/HR)4900000
Size1-1/2"
ApplicationHeating
MaterialIron
Temperature Range (F)250°F Max
Connection TypeThreaded