Models FCE & HCE, Full & Half-Circle Electrodes by Tinker & Rasor

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Description

The Tinker & Rasor Full-Circle and the Half-Circle Rolling Spring Electrodes are manufactured from square cut, high quality stainless steel wire, coiled into 1-1/4 inch diameter coils. These square cut wire electrode springs are tightly controlled for longitudinal stretch so their own weight does not cause air gaps between each coil or sagging when in a properly applied inspection position. Electrode couplings are pre-packed with high grade lubricant to insure long lasting, free-wheeling of the electrode on the pipe under the most adverse conditions.

The Half-Circle solid steel support brackets are cadmium plated to help prevent corrosion. The flexibility of Coil Spring Electrodes allows intimate contact between the electrode and the coated surface. These precision made inspection tools are designed to work in conjunction with Tinker & Rasor High Voltage Holiday Detectors in applying high voltage to the protective coated surface of the pipe for detection of holidays.

Full-Circle Electrodes
Model FCE

Half-Circle Electrodes
Model HCE

The Tinker & Rasor Full-Circle Electrodes are designed to fit properly around the circumference of a coated pipe to afford complete inspection of the coating's continuity in a single pass of the electrode over the coated surface. Full-Circle Electrodes are available for all pipe sizes from 4" (100 mm) and up. This type electrode is most commonly used for the inspection of protective coatings applied to steel pipe or pen stocks where the steel cylinder is elevated sufficiently to allow the spring electrode to pass over the coated cylinder without touching the ground surface underneath when very few, if any, skids are used.

The Tinker & Rasor Half-Circle Electrodes are designed to fit snug against the coated pipe and covers approximately 190^o of the pipe circumference with each pass. This allows rapid inspection of the protective coating particularly when the pipe is positioned on skids. Inspection speeds are greatly increased since the inspection electrode can be quickly maneuvered around pipe supports. Although both sides of the pipe must be traversed for complete inspection coverage, it is usually faster than using a full-circle electrode. The pipe support areas can be inspected later during lowering in operations in the same expeditious manner. Available for all pipe diameters form 1/2" up. Special orders on sizes 10" are available for rapid shipment.