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The working condition of the ND-500 diffusion pump depends on the temperature of the working fluid in the pump boiler. During the initial filling, it is recommended to fill the maximum volume of the working fluid. Working fluid is "VACMA OIL 500" vacuum oil (under technical specifications TU 19.20.29-061-00218526-2019). The total amount of working fluid in the ND-500 diffusion pump is a maximum of 5.5 liters, a minimum of 4 liters. The viewing window for visual inspection of the working fluid has marks of its maximum and minimum amounts. During normal operation of the pump, the level of the working fluid practically does not change.The temperature of the working fluid when the pump is operating at the maximum residual pressure is about 240°C to 255°C. It is recommended to monitor the operation of the heaters in the ND-500 diffusion pump using one temperature sensor. The temperature sensor must be installed in a special radiator socket above the heater. If there is a loss of working fluid and an increase in the temperature of the radiators of the ND-500 diffusion pump up to 320°C, the temperature sensor should give the command to automatically turn off the heaters. The subsequent activation of the pump heaters should not be automatic and should be carried out only after cooling the system. Water at the inlet to the cooling systems of the housing and the oil reflector must be supplied with a pressure of 0.3 MPa (3 kgf/cm2) to 0.5 MPa (5 kgf/cm2) and a temperature of plus 4 ° C to plus 25 ° C. The recommended cooling water consumption for the housing is 500 l/h, for the oil reflector it is 50 l / h. It is regulated by the outlet water temperature, which should not exceed plus 40°C. The water drain should be free (with a jet break). The required speed of action of pre-vacuum pumps at a pressure of 26 Pa (0.2 mm Hg.st) in the outlet section of the ND-500 diffusion pump should be at least 42 l/s. To reduce the losses of the working fluid of the ND-500 diffusion pump at pressures (1·10-1- 1) Pa [(7,5·10-4- 7,5·10-3) mmHg] it is recommended to install an additional LP-500 flow-through water trap on the outlet flange.

The working condition of the ND-400(R) diffusion pump depends on the temperature of the working fluid in the pump boiler. During the initial filling, it is recommended to fill the maximum volume of the working fluid. Working fluid is "VACMA OIL 500" vacuum oil (under technical specifications TU 19.20.29-061-00218526-2019). The total amount of working fluid in the ND-400(R) diffusion pump is a maximum of 5 liters, a minimum of 3.3 liters. The viewing window for visual inspection of the working fluid has marks of its maximum and minimum amounts. During normal operation of the pump, the level of the working fluid practically does not change. The temperature of the working fluid when the pump is operating at the maximum residual pressure is about 240°C to 255°C. It is recommended to monitor the operation of heaters in the ND-400(R) diffusion pump using one temperature sensor. The temperature sensor must be installed in a special radiator socket above the heater. If there is a loss of working fluid and an increase in the temperature of the radiators of the ND-400(P) diffusion pump to 320°C, the temperature sensor must give the command to automatically turn off the heaters. The subsequent activation of the pump heaters should not be automatic and should be performed only after cooling the system. Water at the inlet to the cooling systems of the housing and the oil reflector must be supplied with a pressure of 0.3 MPa (3 kgf/cm2) to 0.5 MPa (5 kgf/cm2) and a temperature of plus 4°C to plus 25°C. The recommended cooling water consumption for the housing is 250 l/h, for the oil reflector it is 40 l / h. It is regulated by the outlet water temperature, which should not exceed plus 40°C. The water drain should be free (with a jet break).

Vacuum membrane pump PL.HM03.02.45 Primelab is an effective device for creating a vacuum, pumping gases and vapors. It has a high pumping speed (38 l/min) with a maximum residual pressure of 45 mbar. All materials in contact with the working fluid are made of PTFE. This material has rare chemical and physical properties. In this case, the pump does not require regular maintenance. Ease of use and reliability make the PL.HM03.02.45 diaphragm vacuum pump an ideal option for laboratories of any scale and production that require high-quality and controlled evacuation.

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 3VVN1-3M(N) water ring vacuum pump with a capacity of 3.5 m3/min at an initial pressure of 0.04 MPa is designed for general industrial use, to create and maintain a vacuum in the operating pressure range from atmospheric to 10 kPa. The working fluid of the pump is water. The use of the 3VVN1-3M(H) 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 engine and destruction of the pump's working organs. The 3VVN1-3M(H) water ring vacuum pump is not intended for use in fire and explosion hazardous industries. The 3VVN1-3M(H) vacuum water ring pump is manufactured in the climatic version of UHL 4 and O4 (i.e. for moderate and cold climate) according to GOST standard 15150-69, meets the requirements of technical specifications TU 3648-053-00218526-2013, designed and manufactured taking into account the requirements of GOST R 52615-2006.

The NVSp-35 dry vacuum spiral pump can operate continuously at an inlet pressure of no more than 10 kPa (75 mm Hg), pumping out one or more sealed vessels with a total volume of no more than 3.5 m3 from atmospheric to residual pressure during the day. Pumping of vessels of the specified volume with leakage is allowed, but the leakage should not cause an increase in pressure at the pump inlet of more than 10 kPa (75 mm Hg).

The 3VVN2-50(H) water ring vacuum pump is not intended for use in fire and explosion hazardous industries. The 3VVN2-50(H) vacuum water ring pump is manufactured in the climatic version of UHL 4 and O4 (i.e. for moderate and cold climate) according to GOST standard 15150-69, meets the requirements of technical specifications TU 3648-053-00218526-2013, designed and manufactured taking into account the requirements of GOST R 52615-2006.

Pumping out steam-gas mixtures is allowed only when the gas-ballast device is open. The NVR-0,1D vacuum plate-rotary pump is manufactured in the climatic version of UHL 4 (i.e. for moderate and cold climate) according to GOST standard 15150-69, but to be used at ambient temperature and pumped medium 283 K to 308 K (+10˚C to +35˚C). It meets the requirements of technical specifications TU 3648-021-00218526-2001, designed and manufactured taking into account the requirements of GOST R 52615-2006. The quality of electricity must meet the requrimemnts of GOST 53390-2009.

Vacuum membrane pump PL.HM02.02.10 Primelab is an effective, compact and powerful device for creating a vacuum or pumping gases. It makes virtually no noise, is suitable for constant use, and does not cause discomfort. Overheating protection is provided. All chambers are made of fluoroplastic, connections are coated with fluoroplastic, and valves are made of FFKM, which guarantees maximum safety of the device. Elements and parts of the device do not react with working substances. Device performance depends on the camera connection method: • Independent. Pumping speed – 38 l/min with a maximum of 45 mbar; • Parallel. Pumping speed – 76 l/min at a maximum pressure of 45 mbar; • Consistent. Pumping speed – 38 l/min at a maximum pressure of 10 mbar.

High-pressure syringe pump (NSHVD-1) with a continuous highly stable fluid flow in a wide flow range of 0.01-10ml/min. with the functions of introducing a correction factor after calibration, setting the volume or pumping time, displaying the amount of pumped, temporary suspension of pumping with automatic resumption, the ability to adjust the flow and volume of the pumped liquid during operation without stops, automatic shut-off of the pump when the set maximum pressure is exceeded, remote control, compensation for changes in the mass flow rate of the liquid pumped by the pump when its temperature changes. TECHNICAL CHARACTERISTICS Flow range, ml/min 0.01 - 10 Dosing error, % 0.2 The discreteness of the task, % 0.01 Maximum working pressure, 12 bar Lifting height of the suction fluid, m2 Accuracy of pressure measurement, % 0.2 The maximum liquid temperature is 60 °C Modbus RTU communication interface Power supply AC 220 V, 50 Hz Dimensions: W x D x H, mm 140 x 335 x 270 Materials in contact with the pumped liquid glass, fluoroplast, stainless steel 316 L

The 2NVBM-630(R)/18000 pump is designed for pumping out of sealed volumes of air, gases, vapors and vapor-gas mixtures that are non-aggressive to the materials of the structure and the working fluid of the pump in the range of inlet pressures from 13.3 to 6.6x10-2 Pa (from 1x10-1 to 5x10-4 mmHg.) and do not contain droplet moisture and mechanical impurities. The 2NVBM-630(R)/18000 pump is used in conjunction with pre-vacuum pumps as part of technological installations or systems in stationary conditions. The type of climatic version of UHL4 and O4 (i.e. for moderate and cold climate) according to GOST standard 15150-69, but it is intended for operation at ambient temperature from plus 10°C to plus 35°C for UHL4 and from plus 10°C to plus 45°C for O4, at cooling water temperature from plus 10°C to plus 20°C. The 2NVBM-630(R)/18000 pump is not intended for use in fire dangerous and explosive industries.

The working fluid of the pump is water. These pumps are designed to work with liquids as well as gases and vapors slightly soluble in them that are not aggressive to the materials of the 2VVN1-3M pump design, not explosive and non-toxic. The use of a 2VVN1-3M(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 working bodies of the 2VVN1-3M(H) pump. The vacuum water ring pump 2VVN1-3M (H) is manufactured in the climatic version of UHL (i.e. for moderate and cold climate) 4 and O4 according to the 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