VACUUM OIL
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The viscosity class according to ISO 3448 is 15, 22 and 68/100, respectively. Close to VM-4 oil in the main indicators is VM-6 oil for mechanical vacuum pumps operating at a residual pressure of up to 1,3-10-1 PA.
VM-Z, VM-11 and VM-4 vacuum oils are working fluids for high-performance steam-oil booster, auxiliary steam-jet and special fore-vacuum pumps, respectively.
Depending on the purpose, the following brands of vacuum oils are installed: VM-3-for booster ferry oil pumps, VM-4 and VM-6 — for mechanical vacuum pumps with oil seal, VM-11 — for booster ferry oil pumps.
Oil vacuum oils are produced in accordance with TU 38.401-58-3-90.
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