Safe Replacement of Pipeline Spool Section Without Welding from PLIDCO



PLIDCO® Weld+Ends, a safety welding coupling for crude oil, gasoline, gas, asphalt, steam, chemical process and other pipelines, joins pipe so that flow can be resumed immediately at pressures shown in table below.

No special preparation of pipe ends is required. Just cut the pipe and slide the PLIDCO® Weld+Ends coupling on. With clamping and thrust screws fully tightened, pipe is joined and leakproof seals are completed.

PLIDCO® Weld+Ends coupling can be left with screws tightened or they can be welded. The safest condition for welding on a pipeline is with the line in operation. If welding is specified, it can be delayed for several weeks until conditions are safewith pipeline in operation.

If welding is specified, pipeline is put in operation. Refer to the chart below for recommended pressures. Thrust screws are cut/burned off flush. End of coupling is fillet-welded around circumference, including seal-welding of thrust screws. Clamping screws are cut/burned off and seal-welded.

Standard PLIDCO® Weld+Ends couplings have a single row of clamping screws at each end. Where excessive end-pulling loads are involved and it is not feasible to weld, additional rows of clamping screws can be provided or the PLIDCO® Clamp+Ring may be used.

Available in standard sizes from 1-1/2 through 48. Special sizes, diameters, pressures and lengths, on application. Buna-N packing is standard. Other packing available.

Standard body materials: 1-1/2 thru 2-1/2, seamless mechanical tubing; 3 and up, A-106 seamless pipe, A-105 forging, A-285, A-516, steel plate or equivalent.


Post time: 05-20-2017