Harris model 351 regulator helps improve weld when using shielding gas
The Harris Products Group “zero” compensated flowmeter regulator for use with shielding gas protects the weld puddle against contamination from atmospheric air and other elements that can cause weld defects.
The device uses a ball float and a variable area flowmeter to yield precise control of the welding gas. The control valve is placed on the upstream side of the flowmeter, which means that it can operate accurately at virtually any inlet pressure, the company states. This design also reduces the surge associated with pressure-compensated flowmeters, allowing it also to function as a gas-saving device.
Two versions are available: one for pipeline applications up to 200-PSI inlet pressure and one for cylinder applications up to 3,000-PSI inlet pressure.
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