REGO AR4108A250 1″ Angle Cryogenic Pressure Relief Valve — 250 PSIG

Item Specifics

REGO’s AR4100 Series documentation confirms the AR4108A configuration uses a 1″ inlet, 1-1/4″ outlet, threaded NPT connections, with a listed weight of approximately 3.75 lb. The series is oxygen-cleaned per CGA G-4.1 and certified for ASME, PED, TPED and CRN requirements.

Product Description

REGO AR4108A250 1″ MNPT × 1-1/4″ FNPT 250 PSIG Angle Pressure Relief Valve

The REGO AR4108A250 is a 90° angle pressure relief valve designed to provide over-pressure protection for compatible cryogenic vessels and piping systems.

This configuration has a 1″ male NPT inlet, 1-1/4″ female NPT outlet, and a 250 PSIG set pressure. The 90° design directs discharged gas away from the spring area and facilitates integration into discharge piping. REGO also specifies a bubble-tight seat designed to shut off when the valve reseats.

The AR4100 Series is cleaned for oxygen service according to CGA G-4.1 and is 100% factory tested.

Key Features

• Genuine REGO AR Series valve
• Part Number: AR4108A250
• 90° angle configuration
• 1″ MNPT inlet
• 1-1/4″ FNPT outlet
• 250 PSIG factory-set pressure
• Oxygen cleaned
• ASME certified
• PED certified
• TPED certified
• CRN certified
• Bubble-tight seat
• Designed for cryogenic service
• High-flow capacity
• Factory tested

Manufacturer Dimensions

For the AR4108A configuration:

• Overall Height (A): 6.88″
• B Dimension: 2.37″
• C Dimension: 2.00″
• D Dimension: 1.90″
• E Dimension: 3.01″
• Inlet: 1″
• Outlet: 1-1/4″
• Weight: 3.75 lb (1.70 kg)

Flow Capacity

REGO lists the AR4108A at 1,003 SCFM air at 250 PSIG set pressure under the specified ASME flow-rating basis. 

Product details

Part / SKU	AR4108A250

Package includes

• REGO AR4108A250 1" Angle Cryogenic Pressure Relief Valve — 250 PSIG

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.