Elbow Test Plugs — EST GripTight

EST GripTight elbow test plugs provide a reusable test closure for pipe spools and piping systems terminating in long-radius elbows. The self-aligning seal and gripper design avoids the need to orient the plug around the elbow during installation.

Elbow plug range

• Manufacturer size range: 2–48 inch NPS (DN50–DN1200).
• Published test pressure: up to 3,350 psig (231 barg), subject to the selected size and configuration.
• Standard seal: urethane; other materials can be reviewed for the service.
• Larger sizes and higher-pressure requirements need specific engineering review.

The design fits most long-radius elbows. It is not a universal fit for every elbow, schedule or surface condition. Identify the nominal size, wall thickness, actual bore, elbow radius and angle, and available installation depth.

Material and test requirements

Provide the pipe alloy, hardness, surface finish, coating or cladding, test medium, temperature and required pressure. Confirm compatibility against the exact plug specifications before selection. A family pressure rating does not override the limits of the pipe or other test-system components.

Installation and documentation

Dual-serrated grippers use test pressure to supplement holding force. Follow the applicable manufacturer procedure for inspection, installation torque, restraints, venting and depressurization. Identification markings on the supplied plug provide the part number and relevant reference information.

See the GripTight elbow plug literature (PDF) and contact Justram for the technical specification and procedure matching your size.

Compare test-plug applications

For straight open-ended pipe, see GripTight MAX test plugs. For flange-to-pipe weld testing, compare high-lift flange weld test plugs. For isolation requirements, review double block and bleed test/isolation plugs. Request an elbow test-plug quotation.