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Swagelok has introduced two new options for its M200 power supply, both designed to enhance weld consistency and quality.

The first is an automatic inside-diameter (ID) purge control system that dynamically changes purge flow to maintain proper ID pressure at the weld joint.

The second is a manual mode and hand torch accessory for welders who prefer the flexibility of manual welding with the consistency of orbital welding.

The Swagelok M200 power supply offers precision and control combined with touch-screen operation for orbital welding.

According to John Glessman, product manager, these new solutions are designed to enhance output consistency for a more streamlined experience and provide the ability to produce more welds per day.

The Swagelok patent-pending ID purge control dynamically changes purge flow to maintain proper ID pressure at the weld joint.

When combined with the M200’s automatic control for outside-diameter (OD) shield gas, the result is a complete, automated system for purge control and consistent weld process and quality.

Glessman said: ‘In general, ID purge control is a large variable in orbital welding.

‘Some applications require the constant manual adjustment of ID purge throughout the welding process.

‘This takes a certain amount of skill and if not done properly may cause significant rework due to poor weld quality,’ he added.

Automatic ID purge control helps to eliminate these undesirable welds, which is critical for industries with high-purity requirements such as semiconductor and biopharmaceutical.

The ID purge settings are established through either automatic weld procedure generation or simple key entry.

A highly responsive mass flow controller (MFC) inside the M200 and an external pressure sensor provide more accurate and consistent purge gas control than manual processes.

The real-time monitoring of all purge operations is recorded in the M200 weld log detail.

The automatic ID purge control option is available with initial M200 power supply orders or can be integrated into an existing machine at any of the nine equipment service centres located around the world.

Installation includes a software upgrade, MFC for the ID purge gas supply and an external component kit.

Equipment service centres, a supplement to the company’s 200-plus sales and service centres, are located in the US, Switzerland, Japan, India, Singapore, Malaysia, China, Korea and Taiwan.

For added flexibility in the welding process, Swagelok’s new manual mode allows for manual TIG welding with the consistency of orbital welding.

When the hand torch accessory is plugged into the power supply, all weld output and adjustments are graphically displayed.

Manual weld controls are brought up on the high-resolution, 12.1in (30.7cm) colour industrial touch screen.

The power supply features a built-in MFC that automatically sets the flow rate for shield gas.

Any adjustments made by the operator are shown on screen.

The manual mode is designed for use in many markets, including oil and gas, semiconductor and biopharmaceutical.

While the upgrade will be standard for all new power supplies, equipment currently deployed in the field can be updated by a Swagelok weld specialist.

The hand torch accessory kit includes one torch, cabling, a clamp and 10 electrodes.

The gas-cooled, 125A-capacity torch features a brass head, failsafe hose fittings and silicon rubber insulation.

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