Zero Process Emissions & Dry-Running Protection
Double mechanical seals consist of two primary sealing interfaces (inner/inboard and outer/outboard pairs) oriented back-to-back, face-to-face, or in tandem. The space between the inboard and outboard seal faces is filled with a clean buffer or barrier fluid (often supplied by an external reservoir under API Plan 52, 53A, or 54). By maintaining the barrier fluid at a higher pressure than the process media, any leakage across the inboard seal is pure barrier fluid—guaranteeing that zero process hazardous media escapes to the atmosphere.
Micro Engineering designs and manufactures premium double mechanical seals optimized for high-risk operations. These dual-face configurations isolate the atmosphere from dangerous, toxic, abrasive, or volatile organic compounds (VOCs). If the process fluid lacks lubricating qualities, or if the system runs dry, the barrier fluid continues to lubricate and cool the faces, preventing catastrophic seal failures and extending operational lifetimes.
Preferred choice for toxic chemicals, hazardous hydrocarbons, abrasive mineral slurries, polymerizing fluids, and thermal transfer fluids.