WD Series Coils

Western Instrument coils are set apart from any other type of Coil, Cable Wrap, or Mobile Power Supply. These World Famous Coils have gained an unparalleled reputation for their portability and ability for performing DC De-Magnetization. WD Series Coils offer a Powerful Full Wave DC Output, Optional AC Output and a Pulse DC Option, which emulates a Half Wave DC Magnetizing Field to aid in Particle mobility. WD-Series Coils are offered with numerous Mechanical Options for protection, convenience and fixturing.

Commonly referred to as End Area Coils in the Oilfield Drilling and Production industries. WD-Series Coils have numerous other applications, due to their portability and high Full Wave DC output. WD-Series Coils are manufactured large enough to provide Pre-Weld Demagnetization of Line Pipe for Pipelines and other process applications.

WD-Series Coils are the industry standard for Fracturing and Cementing Connections (Hammer Unions and Fittings). WD-Series Coils are commonly used for testing and demagnetizing Castings and Forgings. These Coils are also found in Aircraft Service Centres, for not only testing but also for DC Demagnetization.

The WD-Series are available in 5 Models, with their Model Number designation in ID size Western Instrument coils ;

WDV-8 (8-5/8”/219mm ID), DC Coil 12,500 Amp Turns
WDV-10 (10-¾”/273mm ID), DC Coil 12,000 Amp Turns
WDV-14 (14”/356mm ID), DC Coil 14,000 Amp Turns
WDV-16 (16”/406mm ID), DC Coil 16,000 Amp Turns
WDV-18 (18″/457mm ID),DC Coil 18,000 Amp Turns
WDV-25 (25”/635mm ID), DC Coil 24,000 Amp Turns
WDV-8,10, & 14 are available in 115 Volt/60 Hz and 230 Volt/50 Hz Models.
WDV-16 and 24 are available in 220 Volt/60 Hz and 230 Volt/50 Hz Models.

The WDV Power Supplies offer the operator infinite variable control on the DC output of the coil. All WD series coils have a DC output greater than 10,000 Amp Turns, meeting the most stringent specifications. WDV Series coils have gained a very favorable, worldwide, reputation for their manual reversing DC Demagnetization capability. Reversing DC Demagnetization is accomplished by reversing the polarity switch, reducing the amperage followed by a brief shot, by energizing the coil. This reducing-reversing step is repeated until the field is reduced to a desirable level. The Ac option would be selected if the operator wants to demagnetization small parts, or must inspect in an active AC field. WDV-AC coils typically provide an AC field over 4000 Amp Tuns.