HydraBlock In-Line Weld Test Tool

Hydratight's HydraBlock In-Line Weld Test tools provide a safe, reliable and cost-effective means for the localised pressure testing of piping. Commonly used during the maintenance and modification of piping or process equipment, the tool is inserted into the pipe or equipment component to be tested to provide a fast and efficient method of verifying the integrity of butt welds, joints or other welded pipe components.

Localised pressure testing is a means of verifying the integrity of a welded or formed joint or flange installation/weld which has been made on a piping system. Typically these are made as a repair or modification of part of a process piping system which is undertaken during plant shutdown activities.

The test is typically undertaken using water as the test medium, but can be undertaken using inert gas where necessary. The test undertaken is normally a strength test of the joint at 1.5 times the design pressure, but can also be used as a leak testing means, typically undertaken at 1.1 times the design pressure.

As there are multiple variants in piping nominal size, pipe wall thicknesses and flange configurations, Hydratight supplies a broad range of test tools to accommodate all requirements.

HydraBlock tools feature double block and bleed isolation. Once set in position these tools provide a verified vapour barrier allowing hot work activities to take place safely onsite.

Specification:

• Size range: common pipe sizes ¾"- 14” as standard. Sizes up to 36" available on request
• Hydraulically actuated above 2”
• Verified double block and bleed isolation
• Pressure range: up to 690 Bar/10,000 PSI depending on specification, maximum test pressure to suit system
• Pressure assisted sealing

Key Features:

• Simple, straight forward installation and operation
• Installed and activated in a matter of minutes
• Large section high quality elastomer seals ensure a leak tight seal, even in pitted pipework
• Designed with generous radial clearance to cope with typical internal obstructions such as weld beads, ovality, etc.

Operator Benefits:

• Reduces system down time and increases worksite safety by minimising pressure test volume
• Saves time and reduces costs by limiting the test area to only the new weld or welded component
• Installed and activated in a matter of minutes
• Minimised pressure-test volume reduces system down-time and increases worksite safety
• Operators save time and reduce costs by limiting test area to only the new weld or welded component