CENTROTOR Manual Operation Internal Alignment and Purge Gas Clamp Manual clamps are used to accurately align and purge components for welding by hand, or to enable orbital welding heads to be used. Widely used when welding; Stainless Steel tube, fittings, valve and filter bodies, for the food, dairy, brewery and pharmaceutical industries. Also used with non-ferrous materials, such as copper-nickel pipework for submarines and ships.
Operation:- By turning the central actuating handle, two sets of conical fingers are drawn together forcing the backing ring segments radially into the bore of the pipes to be aligned.
Strong clamping force hold the pipes firmly in close abutment permitting welding to take place without the need for tacking.
Pipe with wall thickness up to 5% of pipe diameter are rounded and pipe up to 12 Meters in length can be welded by adding standard extensions.
Backing Ring Segments:- Standard replaceable backing ring segments are made of bronze and are hard Chromium plated.
Gas Purging:- Argon or Helium purging gas is fed into the purge gas manifold and distributed through gas pipes the each individual segment.
Purge gas is concentrated at the underside of the weld, purging is rapid and welding can start immediately. Low gas flow rate and pressure avoids blow back and 1 -2 lit/min is sufficient to provide shielding. |
