How To Clamp A Leaking Pipe



What are Clamps?

The Clamp is a versatile tool used for holding work securely in place while it is being constructed. It has many applications, such as in construction, and in carpentry and woodworking, as well as furniture making, welding, and metalworking.

What are repair clamps?

In the event of a leak or a burst, pipe repair clamps provide a fast and effective solution. They are typically made up of a metal sleeve with flexible rubber padding on the inside that is applied to the leaking pipe and seals it.

Using the rubber padding on the pipe, you must place the clamp over the problem area to fix the pipe problem. Once you have tightened the screws on the repair clamp, you can now prevent water from leaving the pipe by providing a tight seal over the leak. You can expect the pipe to provide a satisfactory seal for many years to come once it has been fixed.

Types of Repair Clamps

Patch clamp :

A metal patch can be used to repair a small, non-leaking defect. It is simple to use a metallic patch to cover a small defect. The repair involves welding a suitable curved patch, by fillet welding, to the pipe. It is important to ensure that the pipe wall in the areas of welds, which are away from the defect area, is of sufficient thickness and is free of defects. This type of repair is very rarely used in high integrity applications and does not offer any major advantages over the use of a simple patch clamp – a bolted clamp that holds a patch of elastomeric material adjacent to the defect 

Pin-hole leak repair clamp :

It may be appropriate to use a patch clamp or a pin-hole leak repair clamp if there is a small pin-hole leak on a section of pipe. The pin-hole leak repair clamp uses a locator pin that guides a pointed cone seal into the leaking hole using a locator pin. This type of repair allows for the use of a force screw to apply pressure to the cone seal and then remove the pin once the seal has been compressed, thus completing the repair. It is possible for this type of repair to withstand working pressures of up to 138 bars (2000 psi). 

Medium duty ‘stand-off’ type repair clamp :

The most common form of pipe repair component is the ‘stand-off’ repair clamp. These repair clamps are usually cylindrical in shape and are formed in two half shells. Low pressure clamps, however, may be furnished in the form of a flexible one-piece assembly that can be ‘sprung’ over the defective pipe. Stand-off repair clamps are sometimes referred to as ‘enclosures’ by virtue of the fact that they totally enclose the defective area within a sealed pressure containment vessel. 

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