Inlet traps help prevent premature pump failure
PosiTrap vacuum-inlet traps (photo) feature a fully positive seal at both ends to prevent contaminants from entering the pump, potentially causing premature failure. The traps come in sizes of 4 and 8 in. for pumps with capacities of up to 25 and 50 ft3/min, respectively. Made of stainless steel with straight-through and right-angle ports and flange sizes from NW 25 up to ISO 80, they can be supplied with a wide variety of filter elements. Designed to protect pumps from particulate matter, organic solvents, hydrogen peroxide, acids and water vapor, filter media offered for PosiTrap traps include stainless-steel mesh, activated charcoal, molecular sieve, polypro and Sodasorb. — Mass-Vac, Inc., North Billerica, Mass.