MHV designs and manufactures pumps and systems vacuum piping and manifolds flexible connectors vacuum valves and custom oil filtration systems and it provides helium leak testing and field repair services
MHV designs and manufactures pumps and systems, vacuum piping and manifolds, flexible connectors, vacuum valves, and custom oil filtration systems, and it provides helium leak testing and field repair services.

Extended-Service Vacuum Pumps

Pressurized oil lubrication Oil-sealed rotary piston design

METALLURGICAL HIGH VACUUM’s HS430 "Survivor" pumps incorporate multiple oil filters that extend the life of the pump by removing harmful particles and acid. This design extends pump life and increases the return on investment significantly. "We have 15 Survivor pumps with over 350,000 hours in operation. Their 'Smart Filters' are soaking up the acids and particles that can kill standard pumps," explained Geoff Humberstone, MHV president.

MHV products and services include new pumps and systems, vacuum piping and manifolds, flexible connectors, vacuum valves, custom oil filtration systems, helium leak testing, and field repair. It describes itself as the only manufacturer that builds filtration into the original pump design, to reduce maintenance costs significantly over the service life of the pump.

"In many vacuum systems contamination from the heat treating or brazing furnaces can kill a pump long before its time is up,” Humberstonecontinued. “Corroded bearings and worn out internal parts can result from particles and acid."

MHV Survivor vacuum pumps use a proven oil-sealed rotary piston design for reliability even in demanding operating conditions encountered in heat treating operations. Pressurized oil lubrication increases pump life significantly with filters that clean the oil of particulates and acids. This pump design reduces the cost of ownership over the life of the pump, and helps to reduce periodic maintenance.

A standard gear-type oil pump provides positive lubrication of bearings and all other moving parts. Clean oil is forced into the critical hinge bar/piston slide tang interface. The eccentric bearing bands are also pressure lubricated. The heavy-duty roller bearing design on main shaft extends life and gives better resistance to corrosion.

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