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The NVD-600 two-rotor vacuum pump is not designed for pumping air, vapors and vapor-gas mixtures from one volume to another. The NVD-600 two-rotor pump can only work in conjunction with a pre-vacuum pump, and is designed for pumping in the pressure range from 1.3·102Pa (1 mm Hg) to the maximum residual pressure. The speed of action of the forvacuum pump for NVD-600 is not less than 60 m3/h. The temperature of the pumped media at the inlet to the pump NVD-600 should not exceed the maximum operating values of the ambient temperature according to GOST standard 15150-69, at which the pump is operated. At an operating pressure of more than 5 mm Hg for the HVD-600, the bypass valve is in the open position. The pumped gas is partially bypassed through channels in the pump housing from the outlet to the inlet of the pump NVD-600, which ensures the operability of the pre-vacuum pump and prevents overheating of the pump NVD-600. The NVD-600 double-rotor vacuum pump can operate continuously at an inlet pressure of no more than 133 Pa (1 mm Hg) or pumping out one or more sealed vessels with a total volume of 7.5 m3 for the pump from atmospheric to the maximum residual pressure for 8 hours.

The 2ZVE-160 vacuum shutter with electromechanical drive equipped with 160mm conditional passages is designed to overlap vacuum systems in the range of operating pressures from 1x10-6 to 1.07x105 Pa (0.75x10–8 to 800 mm Hg). The 2ZVE-160 shutter is pendulum-type. The 23VE-160 shutter is manufactured in the climatic version UHL (i.e. for moderate and cold climate) and O (i.e. general) 4 according to GOST standard 15150-69. The working environment is air and non–aggressive gases. It is not intended for use in fire and explosive hazardous industries. The 23VE-160 shutter meets the requirements of technical specifications TU 3648-040-00218526-2003. According to the method of protecting a person from electric shock, the gate belongs to Class I electrical equipment according to GOST 12.2.007.0-75.

The integrated flanged trap LI-500 is installed inside the diffusion pump instead of the standard oil reflector, without increasing the overall dimensions of the diffusion pump. The LI-500 trap performs the function of an oil reflector, is installed instead of a standard oil reflector in pumps, has an additional number of cooled screens for capturing oil return flow vapors (more than that of the MU trap), covers the entire area of the input high-vacuum flange.

The LA-100 nitrogen filler trap is installed on the inlet flange of the diffusion pump and is designed to reduce the flow of working fluid vapors into the pumped volume by condensing them on the elements of the freezing device cooled with liquid nitrogen.

The operation of the NVDM-160 diffusion pump is based on the capture and transfer of the pumped gas by a steam jet flowing from the slit gaps of the steam line nozzles towards the outlet flange. The oil reflector of the NVDM-160 diffusion pump is a flange with a cooling tube passing through it, soldered to a cap located in the center of the flange. The NVDM-160 closed-type diffusion pump heater consists of tubular electric heaters fixed in the heater housing. During the operation of the pump, it is necessary to monitor the flow rate and temperature of the cooling water, the level of the working fluid and its temperature. Replacement or refilling of the working fluid depends on the operating mode of the pump (inlet pressure, pumping duration, etc.) and the composition of the pumped medium. Therefore, the time after which the working fluid is replaced or refilled can be from 100 to 1000 or more hours. A large flow rate of the working fluid is observed when the pump is operating in the range of inlet pressures from 6.6×10-2 to 13.3 Pa (from 5×10-4 to 1×10-1 mm Hg). Water at the inlet to the cooling systems of the housing and oil reflector must be supplied with a pressure of no more than 0.5 MPa (5 kgf / cm2) and temperature from plus 40C to plus 250C. The recommended cooling water consumption is 60+10 l/h and is regulated by the outlet water temperature, which should not exceed plus 400C. The water drain should be free (with a jet break). Not allowed: operation of the pump without water cooling, exceeding the maximum exhaust pressure of 33.3 Pa (0.25 mm Hg). The level of the working fluid during operation, at which the parameters of the NVDM-160 pump are provided, must correspond to min 10mm, max 17mm. The volume of the filled working fluid is 0.3 liters

The clamp connection (DIN 28 404 and ISO 1609) allows connecting components from DN 63 to DN 630 in any position, on any fixed flange regardless of the location of the bolt holes.

The MU-800 flanged enlarged oil reflector performs the function of an oil reflector, is installed instead of a standard oil reflector in ND pumps and has an additional number of cooled screens to capture oil return flow vapors.

The use of a 2VVN1-6M(H) water-ring vacuum pump for pumping out water-gas mixtures is allowed only if the bulk of the water is separated and discharged at the pump entrance. Failure to comply with this requirement may lead to unacceptable overload of the electric motor and destruction of the details of the 2VVN1-6M(H) pump. The 2VVN1-6M(H) vacuum water ring pump is manufactured in the climatic version of UHL (i.e. for moderate and cold climate) 4 and O4 according to GOST standard 15150-69, meets the requirements of technical specifications TU 3648-015-00218526-2000, designed and manufactured taking into account the requirements of GOST R 52615-2006. Electricity grid must meet the requrimemnts of GOST 32144-2013.