Product Overview
KASI supplies the GripSafe® ST Inboard Insertion Blocking (IIB) Reverse Pressure Test Plug for rent and sale across Canada and Alberta. Manufactured by USA Industries, the GripSafe® ST IIB represents a major advancement in test plug design, improving safety and reliability compared to outdated flange test plugs.
As the official, authorized distributor of USA Industries in Canada, KASI ensures customers have access to the safest and most effective piping isolation plugs for welding and pressure vessel testing.
After decades of industries relying on the same basic plug technology — often leading to dangerous plug ejections, the GripSafe® ST IIB plug redefines safety in piping isolation. With its inboard insertion blocking design, the IIB plug ensures secure performance in critical pressure applications.
Unlike traditional flange test plugs (FTPs), which only apply hoop and radial stresses, the GripSafe® ST IIB plug accurately replicates the full stress conditions of real hydrotests by applying longitudinal (axial), circumferential (hoop), and radial pressures. This makes it a superior choice for flange weld testing and pressure vessel applications.
Key features:
- Innovative Safety Design: Prevents plug ejections common with outdated technology.
- Accurate Stress Simulation: Replicates full hydrotest stresses (axial, hoop, and radial).
- Reverse Pressure Ready: Handles reverse pressure testing safely and effectively.
- Durable Construction: Built for demanding industrial environments.
- Trusted Manufacturer: Produced by USA Industries with decades of expertise.
IIB Applications:
- Flange Weld Testing: Used with a ported blind flange, GripSafe® ST IIB plugs simulate stresses identical to a full hydrotest, ensuring weld joints are properly validated.
- Pressure Vessels: Blocks outlet piping in vessels to allow safe pressurization for cleaning or testing.
Larger sizes and custom configurations available upon request
Note: For 4” NPS, Pipe Schedules 120 , 160, and XXH require the smaller plug configuration
Product brochure
What is the GripSafe® ST IIB Reverse Pressure Test Plug used for?
It is primarily used for flange weld testing and pressure vessel isolation, ensuring full stress replication and improved safety.
How does the IIB plug improve safety over traditional flange test plugs?
Traditional FTPs only apply hoop and radial stresses, while the IIB plug replicates axial, hoop, and radial stresses, making tests more accurate and secure.
What makes the GripSafe® ST IIB superior for flange weld testing?
By simulating real hydrotest conditions, the IIB ensures weld joints are properly validated before commissioning
Can GripSafe® ST IIB plugs be rented as well as purchased?
Yes. KASI offers GripSafe® ST IIB plugs for rent and sale, providing flexibility for projects of any size.
Where can I buy GripSafe® ST IIB plugs in Canada?
KASI is the official USA Industries distributor in Canada, with local distribution and support from Edmonton, Alberta.
