Multiport™ Pressure Relief Valve Manifold Assemblies for Large Storage Containers A8560, A8570 and AA8570 Series
Designed especially for use as a primary relief device on large stationary pressurized storage containers with flanged openings. These manifolds incorporate an additional relief valve, not included in the flow rating, allowing for servicing or replacement of any one of the relief valves without evacuating the container. The hand wheel on the manifold selectively closes off the entrance port to the relief valve being removed while the remaining relief valves provide protection for the container and its contents. All manifold flow ratings are based on flow through the relief valves after one has been removed for service or replacement.
Material |
N/A Ductile Iron |
Start To Discharge Setting |
N/A 250 psig |
Rating |
N/A American Society of Mechanical Engineers (ASME) Underwriters Laboratories (UL®) Listed |
Container Flange Connection Size |
N/A 4 in |
Container Flange Connection Capacity |
N/A 300 lb |
Quantity |
N/A 4 |
Part Number |
N/A A3149MG |
Inlet Connection Size |
N/A 2-1/2 in |
Inlet Connection Type |
N/A Male National Pipe Thread (MNPT) |
Underwriter Laboratories (UL®) Rated Flow Capacity Per Air at 120 Percent (%) of Set Pressure |
N/A 27,750 scfm |
ASME Rated Flow Capacity Per Air at 120 Percent (%) of Set Pressure |
N/A Not Applicable scfm |
Note for Air Flow Capacity |
N/A
Flow rating based on number of relief valves indicated in parentheses ( ). Flow rates shown are for bare relief valves. Adapters and pipe-aways will reduce flow rates as discussed in the Foreword section. |
Note for Accessories |
N/A
Outlet 3 1/2-8N (F) thread, will accept 3" M. NPT pipe thread. |
Note for Container Flange Connection |
N/A
For use with modified 300# ANSI flange with 4" port. |
Additional Information |
N/A
The hand wheel on the manifold selectively closes off the entrance port to the relief valve being removed while the remaining relief valves provide protection for the container and its contents. All manifold flow ratings are based on flow through the relief valves after one has been removed for service or replacement. |