Cast Steel Pressure Relief Hoods – Model 53-OS-250, ANSI 250# Flanged

The 53-OS-250 Cast Steel Pressure Relief Hood is a robust outlet accessory designed for use in pressure relief systems on tanks, pipelines, or vent stacks. Constructed from durable cast steel, the hood is coated with red oxide primer to enhance resistance against corrosion in outdoor or industrial environments. The unit features an ANSI 250# flanged connection (estimated rating) for secure attachment to mating flanged components. This design helps deflect and safely direct vented gases or fluids away from critical equipment or personnel areas. Commonly used in refineries, storage depots, and chemical plants, this model is identifiable by its cast marking “53-OS-250”, typically found on the body.

Specification:

– Model Number (Casting): 53-OS-250
– Design Type: Pressure Relief Hood / Outlet Vent Cap
– Material: Cast Steel
– Flange Type: ANSI Flanged
– Pressure Class: Estimated ANSI 250#
– End Connection: Flanged – bolt circle dimensions per ANSI B16.5 (to be confirmed)
– Coating: Red oxide primer (corrosion-resistant)
– Application: Pressure/vacuum relief on tanks, piping venting, or discharge stacks
– Installation: Bolt-on flange mount
– Surface Finish: Coated, rough-cast steel body
– Markings: Model number cast on body (“53-OS-250”)
– Typical Orientation: Vertical vent termination or horizontal piping outlets
– Country of Origin: To be confirmed
– Estimated Size Range: Typically suited for 4"–12" nominal pipe flanges
– Inspection: Visual and dimensional checks – no internal moving parts
For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com