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VALVES: Pressure Relief & Relief Valve Manifolds

External "Pop-Action" Supplementary Pressure Relief Valves for Small ASME Containers and DOT Cylinders 3127 and 3129 Series

Designed for use as a supplementary relief valve on small ASME above ground and underground containers. They may also be used as a primary or secondary relief device on DOT cylinders, or as hydrostatic relief valves.

All working components of these relief valves are outside the container connection, so the valves must be protected from physical damage.

Unit of Measure

Specifications

Container Type

 N/A Department of Telecommunication (DOT)

Approximate Overall Height (B)

 N/A 2-19/32 in

Section Hexagonal Wrench (C)

 N/A 1 1/8 in

Rating

 N/A Department of Telecommunication (DOT) American Society of Mechanical Engineers (ASME) Underwriters Laboratories (UL®) Listed

Size

 N/A 1/2 in

Capacity

 N/A 250 lb

Material

 N/A Brass

Connection

Container Connection Size (A)

 N/A 1/2 in

Container Connection Type (A)

 N/A Male National Pipe Thread (MNPT)

Flow Capacity

Underwriter Laboratories (UL®) Rated Flow Capacity Per Air at 120 Percent (%) of Set Pressure

 N/A 465 scfm

Accessories

Accessories

 N/A

Part Number - 3129-40P
Part Name - Protective Cap

Part Number - 3129-10
Part Name - Pipe-away Adapter
Outlet Size - 1/2" F. NPT

Note

Note for Surface Area

 N/A

Flow rates shown are for bare relief valves. Adapters and pipe-aways will reduce flow as discussed in the Foreword section.

Note for Air Flow Capacity

 N/A

Not UL or ASME rated. Rego rated at 480 PSIG.

Note for Rego Rating

 N/A

Meets DOT requirements.

Additional Information

Additional Information

 N/A

VALVES: Pressure Relief and Relief Valve Manifolds

External "Pop-Action" Supplementary Pressure Relief Valves for Small ASME Containers and DOT Cylinders 3127 and 3129 Series.