Search

ConFlat (CF) standard connections are used to ensure the connection of components of vacuum systems operating in the field of high and ultra-high vacuum.

The AVB-50 vacuum water ring unit consists of a 3BBH2-50 vacuum water ring pump and an EV-50 water ring vacuum ejector

The LA-400 nitrogen filling 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 working condition of the ND-1000 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. The 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-1000 diffusion pump is a maximum of 23 liters, a minimum of 16 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-1000 diffusion pump using two temperature sensors. The temperature sensor must be installed in a special radiator socket above the heater. In the event that there is a loss of working fluid and an increase in the temperature of the radiators to 360 0C for the ND-1000 diffusion pump, 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 1500 l/h, for the oil reflector 150 l / h and 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 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.

Size of DN: 10,16,20,25,32,40,50.

The 2NVBM-160(R)/1000 booster pump is a structure consisting of housings, a steam pipe, a trap and a heater. The alignment of the steam line in the 2NVBM-160(R)/1000 pump housing is carried out by a rod inserted into the hole of the hood (oil reflector) and screwed into the upper part of the steam line. The required effective speed of action of the pre-vacuum pump (pumps) at a pressure of 93 Pa (0.7 mm Hg) at the outlet of the booster pump 2NVBM-160(P)/1000 is not less than 15 l/s. The maximum residual pressure of the 2NVBM-160(P)/1000 pump, measured by the PMI-2 manometric ionization converter with nitrogen filled into its trap, is no more than 1.3×10-3 Pa (1×10-5 mm Hg). The pressure of cooling water at the inlet to the 2NVBM-160 pump should be from 0.2 to 0.5 MPa (from 2 to 5 kgf/cm2). The drain from the pump must be free with a jet break. Cooling water consumption is 145 l/h. The total amount of working fluid for the 2NVBM-160(P)/1000 pump is 5 liters., the level of working fluid should be between the upper and lower risks of the level gauge. 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, so the time after which the working fluid is replaced or refilled can be 100 hours or more. A large flow rate of the working fluid is observed when the pump is operating in the input pressure range from 1.33 to 13.3 Pa (from 1·10-2 to 1·10-1 mm Hg). The operating mode of the pump in the range from 13.3 Pa (0.1 mmHg) to the maximum residual pressure is cyclically irregular.

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 LI-630 integrated flanged trap is installed inside the diffusion pump instead of the standard oil reflector, without increasing the overall dimensions of the diffusion pump. The LI-630 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 LI-1000 integrated flanged trap is installed inside the diffusion pump instead of the standard oil reflector, without increasing the overall dimensions of the diffusion pump. The LI-1000 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.