Pressure Test Plugs

Pressure Test Plugs

Industrial Solutions for Safe, Accurate Pipe Pressure Testing

Pressure test plugs are essential tools for verifying the integrity of piping systems during fabrication, maintenance, and repair. Whether you’re performing hydrostatic testing, pneumatic testing, weld testing, or isolating a section of pipe, the right plug ensures a secure seal, accurate results, and safe operation.

Justram supplies a wide range of pressure test plugs designed for low‑pressure, medium‑pressure, and high‑pressure applications across industrial, mechanical, and power-generation environments.

Below is an overview of the plug types available in this category and how they differ, helping you choose the safest and most efficient option for your application.

Types of Pressure Test Plugs Available

Aluminum Pipe Plugs

Best for: General-purpose, low‑to‑medium pressure testing
Why choose them:

• Lightweight and easy to handle
• Mechanical expansion seal
• Cost‑effective for routine shop testing

A practical everyday solution for contractors and fabrication shops.

Thaxton High Pressure Test Plugs

Best for: Demanding hydrostatic testing in industrial environments
Why choose them:

• Engineered for high-pressure performance
• Rugged construction
• Reliable mechanical grip

Trusted in refineries, chemical plants, and heavy industry.

Wing Nut Test Plugs

Best for: Quick, tool‑free installation in low-pressure applications
Why choose them:

• Tighten by hand
• Rubber expansion seal
• Ideal for temporary sealing and drain testing

Perfect for maintenance teams needing fast setup and removal.

Economy Test Plugs

Best for: Budget-friendly, low-pressure testing
Why choose them:

• Simple mechanical design
• Suitable for non-critical applications

A cost-effective option for occasional or light-duty use.

GripTight® Elbow Test Plugs

Best for: Testing elbows, bends, and tight-radius pipe sections
Why choose them:

• Designed to seat securely in curved pipe
• Maintains a reliable seal in non-linear geometry

Ideal for complex piping layouts.

GripTight® High Pressure Test Plug

Best for: High-pressure hydrostatic testing of open-end pipe and tubes
Why choose them:

• Seal tightens as pressure increases
• Industry-leading safety design
• Fast installation and removal

Widely used in power generation and heavy industrial testing.

GripTight® MAX High Pressure Test Plug

Best for: Extreme pressure applications
Why choose them:

• Higher pressure ratings than standard GripTight
• Reinforced construction
• Maximum safety margin

Designed for the most demanding test environments.

GripTight® Reverse Pressure Test Plugs

Best for: Applications where pressure is applied from the opposite direction
Why choose them:

• Engineered for back-pressure scenarios
• Prevents blowouts in reverse flow conditions

Used in specialized testing and isolation work.

Flange Weld Test Plugs

Best for: Testing flange welds before system pressurization
Why choose them:

• Designed to seal inside the flange bore
• Allows localized weld testing
• Reduces the need to pressurize entire systems

Ideal for fabrication shops and pipeline construction.

Medium Pressure Bolt-Type Test Plugs

Best for: Controlled, moderate-pressure hydrostatic testing
Why choose them:

• Bolt-driven expansion
• Strong mechanical grip
• Reliable mid-range performance

A versatile option between low-pressure and high-pressure plug families.

Nylon Gripper GripTight® Plugs

Best for: Lightweight, corrosion-resistant testing
Why choose them:

• Non-metallic grippers
• Excellent for stainless steel and corrosion-sensitive applications

A flexible choice for shops and contractors.

OD GripTight® Test Plug

Best for: Applications where internal access is limited
Why choose them:

• Seals on the pipe’s outside diameter
• Ideal for damaged or obstructed internal surfaces

Common in repair, retrofit, and specialty testing.

Socket Weld SQ2 Test Plugs

Best for: Testing socket weld fittings before final weld-out
Why choose them:

• Designed for socket weld geometry
• Prevents rework by verifying weld integrity early

A must-have for fabrication and welding operations.

How to Choose the Right Pressure Test Plug

Pressure Test Plug Selection Support

• Low-, medium- and high-pressure options for a range of test requirements
• Specialized configurations for standard, reverse-pressure, elbow, socket-weld and outside-diameter applications
• Technical support for sizing, pressure ratings and application guidance

Find the Right Pressure Test Plug for Your Application
Whether you’re pressure testing pipelines, isolating sections for repair, or preparing for critical welds, choosing the correct pressure test plug ensures safety, accuracy, and efficiency. Browse the full range above or contact our team for expert support.