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Parker’s Refrigerating Specialties Division offers the M1 Inline Manifold and the M2, M3 and M4 Dual Stop Manifolds for use in conjunction with their full line of Safety Relief Valves.

Parker’s Refrigerating Specialties Division offers two types of manifolds for use in conjunction with their full line of Safety Relief Valves. The M1 Inline Manifold comes in sizes ranging from 1/2″ to 1-1/4″ (13mm to 20mm), and it is for use with the SR and SRH Relief Valves. The M2, M3 and M4 Dual Stop Manifolds are for use with Parker’s H2, H3, H4 and H5 Relief Valves, and they are available from 3/4″ to 1-1/4″ (20mm to 32mm). All Safety Relief Manifolds are designed to comply with ASHRAE and IIAR standard.

TYPE

M1 Inline or M2, M3, M4 Dual

INLET SIZE (INCH)

1/2 to 1-1/2INLET SIZE (MM)

13 to 38

FLOW COEFFICIENT (CV)

Port 1: 7.2 to 26.5 Port 2: 7.8 to 25.9

FLOW COEFFICIENT (KV)

Port 1: 8.3 to 30.6 Port 2: 9 to 30

MATERIAL

Body: Carbon Steel or Gray Iron, Stem: Stainless Steel

MAXIMUM WORKING PRESSURE (BARG)

27.6

MAXIMUM WORKING PRESSURE (PSIG)

400

MINIMUM OPERATING TEMPERATURE (C)

-40

MINIMUM OPERATING TEMPERATURE (F)

-40

MAXIMUM OPERATING TEMPERATURE (C)

150

MAXIMUM OPERATING TEMPERATURE (F)

300

MINIMUM AMBIENT TEMPERATURE (C)

-29

MINIMUM AMBIENT TEMPERATURE (F)

-20

MAXIMUM AMBIENT TEMPERATURE (C)

94

MAXIMUM AMBIENT TEMPERATURE (F)

200