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CRPM:Continious Reinforced Piping Machines

Pipes are produced by filament winding on fully automatic machinery in accordance with the following categories.

CRPM Pipe Production Range Table

Diameter	Pressure	Stiffness	Length
(mm)	(bar)	(N/mm²)	(mt)
300-1400	1-40	up to 10.000	up to 15
1400-2400	1-32
2400-3000	1-25
3000-3400	1-20
3400-4000	1-16

The basic winder is composed of a continuous steel band supported by beams which form a cylindrically shaped mandrel. The beams rotate, friction pulls the band around and roller bearings allow the band to move longitudinally so that the entire mandrel continuously moves in a spiral path toward the end of the machine.

As the mandrel moves, fine graded filler, glass fibers, resin and surface materials are metered on in precise amounts under the direction of a programmable logic controller (PLC) and computer (PC). The PLC-PC modules provide integrated process control based on preprogrammed recipes. Only basic pipe data such as diameter, pressure and stiffness class needs to be entered and the computer calculates all the machine settings.

Curing system consists of induction and infrared heating equipment. During curing of pipe, temperatures are shown graphically on the PC monitor.

The operator presets the length of pipe in the control system so the saw operation is completely automatic

After passing the cutting station, the cured pipe is supported on lifting tables that are specially designed for receiving the pipes. The pipe is then moved by conveyor to the chamfering and calibration unit and then to the hydrostatic pipe tester. All pipes are quality inspected after manufacture. Once inspected the pipe spigots are chamfered and calibrated where necessary for fitment of couplings. Each pipe is pressure tested to twice its nominal pressure class to verify performance.

CRPMs : Continuous Reinforced Piping Machines
    CRPM 300-2400 Winder
    CRPM 300-3000 Winder
    CRPM 900-4000 Winder
    Pipe End Preparation Unit (EPU)
    Pipe Hydrostatic Test Unit (PTU)
    Coupling Installation Unit (CIU)
    Pipe Cutting Station (PCS)