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Radiant Heat & Heating Supplies
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Relief Valves
Pressure Relief Valves
Mcdonnell & Miller 250 …

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250-2-40, Relief Valve 2" NPT, 40 psi (2.8 kg/cm2)

SKU:183175

Brand: Mcdonnell & Miller

250-2-40, Relief Valve 2" NPT, 40 psi (2.8 kg/cm2)
Qty	Price
	$519.85 / each

Usually Ships in 7-10 Days

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Specs

Product Specs
Pressure Set Point:	40 psi
Capacity:	5000000 BTU/hr
Capacity (BTU):	5000000
Size:	2"
Material:	Bronze
Application:	Heating
Temperature Range (F):	250°F Max
Connection Type:	Threaded
ASME:	Yes

Description for Mcdonnell & Miller 183175

For 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
Sizes and material:
3/4" - 1" NPT - bronze body and seat
2" NPT - cast iron body, brass seat
EPDM rubber diaphragm and seat disc
Maximum temperature 250 Deg. F (121 Deg. C)
Maximum operating pressure range 30 - 125 psig (2.1 - 8.8 kg/cm2)