Plidco CLAMP Instrucciones De Instalación página 3

1. Remove all coatings, rust and scale from the pipe surface where the PLIDCO Clamp/Strongback
will contact the pipe. A brush off surface, as noted in SSPC-SP17 / NACE No.4 ISO Sa 1, is
preferred. The cleaner pipe surface will ensure more uniform clamping of the fitting to the pipe.
2. A PLIDCO Clamp/Strongback is capable of clamping on out-of-round pipe up to approximately 5%
ovality. This is based on the ability of the bolting to reshape the pipe. For very thick wall pipe the
bolting may not be able to reshape the pipe. Badly out-of-round pipe may require additional
evaluation.
3. A PLIDCO Clamp/Strongback is not capable of reshaping flattened or dented pipe.
4. PLIDCO manufactures an Ovality Gauge that can measure the cross-sectional shape of the pipe.
This is particularly useful for submerged pipelines where visibility may be limited.
Careless handling can damage the bearing area of the clamp. Lifting devices such as chains, cables or
lift truck forks should be kept away from the clamping surface.
Figure 1 shows labeled parts of the PLIDCO Clamp/Strongback.
1. Clean and lubricate all studbolts and nuts, and prove free and easy nut running prior to the
installation.
2. Assemble the PLIDCO Clamp/Strongback around the pipe directly adjacent to the repair fitting the
clamp is securing. Ensure the PLIDCO Clamp/Strongback is oriented such that the PLIDCO
Clamp/Strongback will resist axial loads applied to the fitting (ex. For vertical installation of a
PLIDCO Split+Sleeve, place the clamp directly below the Split+Sleeve to resist the gravitational
axial load).
Pipe Preparation
Installation
Figure 1
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IP-061
Revision 0