In order to prepare the plant’s pumps for new mechanical seals, Hughes needed to machine the pump casing and keep the gasket surfaces perpendicular to the pump shaft/bore within 0.0004 inch.

Dual Mechanical Seals The dual mechanical seal design features two sets of sealing faces—one set sealing against the process fluid and another set sealing to the atmosphere.

He explained, “This mining operation faced tremendous challenges with its Warman F-frame pumps, ... “Our dual mechanical seal system, enhanced by a pressurised barrier tank system, ...