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The body of the 25M URS valve is of welded construction and consists of a shell, a seat, side and lower nozzles. With the lower branch pipe, the 25M URS valve is connected to the vacuum system with studs. The smooth part of the stem serves as a visual indicator of the "open" or “closed” valve positions. The casing is designed to protect the valve from accidental openings, and also serves as additional protection against precipitation, sand, dust entering the inner cavity of the valve. The valve opens when the flywheel rotates counterclockwise. The valve closes when the flywheel rotates clockwise.

Climatostat V3 (TU 26.51.-70-002-63790925-2021)- it has a new unique control unit UB-04T with a touch screen. This climatostat is universal, it combines the advantages of climatostats B2 and P2, and, accordingly, can perform the functions of one and the other. It is intended for performing works on biotesting the toxicity of aquatic environments on daphnia and ceriodaphnia crustaceans, as well as microalgae (scenedesmus, etc.) in controlled environmental conditions. In the climatostat, it is possible to install exposure devices of the type (UER or similar) and to carry out the exposure of samples under conditions of rotation of samples with test organisms in a plane located at an angle to the horizontal. This ensures the intensification of gas exchange of liquid samples with the external environment. A slow rotation ensures complete uniformity of conditions (temperature, lighting, gas exchange) in all samples, including control, and as a result - high reproducibility of the biotest conditions and reproducibility of the test results. The climatostat has an on-board network for connecting additional sample exposure devices, 5 (five) preset modes and 8 (eight) user modes for free programming of the climatostating parameters by the operator. It is intended for carrying out biotesting (according to the methods of Zhmur N.S., "Aquaross" 2001, 2007), Grigorieva Y.S. (SFU)., Terekhova V.A. (MSU, LATAP), hazard assessment of nanomaterials according to the methods of Morgalev Yu.N. (TomSU) and others. Used with test objects: Crustaceans Daphnia Magna (Daphnia magna Straus); Crustaceans Ceriodaphnia affinis (Ceriodaphnia affinis); Crustaceans of salty reservoirs Artemia Salina (Artemia salina L); Algae Scenedesmus (Scenedesmus quadricauda). Algae chlorella (Chlorella vulgaris Beijer), etc. Additional features of the controller (UB-04T): - setting the contrast of information display - sound notification of an open door - audio notification of the end of the biotest - graphical intuitive parameter setting scales - Fully Russian-language menu and Russian-language design of all text information of the interface - 3 (three) preset modes with the exact name and a brief description of the techniques (can be increased or decreased at the request of the Customer) - quick correction of backlight brightness in preset modes (two touches) - fast temperature correction of temperature control in preset modes (two touches) - 8 user modes (the number of modes can be increased or decreased at the request of the customer when ordering) - graphical intuitive scales for adjusting the brightness of lumostating, temperature of thermostating, automatic adjustment of the photoperiod (with one touch) - built-in countdown timers for setting the exposure time in the biotest (up to 180 days with a minimum discreteness of 1 min) - notification of the power failure of the device during the test - error notification - the ability to update the controller firmware directly by the user at the place of operation - quick reset to factory presets

Metal double support cabinet with 1 door and 3 drawers Length, mm: 860 Depth, mm: 500 Height, mm: 860 The case is metal painted with powder paint (RAL 7035) with the texture of shagreen leather Completely made of steel painted with powder paint (RAL 7035) with the texture of shagreen leather Frameless housing design Two compartments: left - with 3 drawers, right - with a swing door The side walls, partition and facades are double. The thickness of the side walls is 19 mm, the facades are 18 mm The facades are filled with noise-absorbing material Handles - polypropylene Right compartment – Hinges with an opening angle of 270o – Lock – Easily removable shelf with the possibility of installation at 3 different height levels. The shelf has a lock – The permissible load on the shelf is 30 kg

The test tubes contain a buffer solution of sodium citrate, which is an anticoagulant. The ratio of citrate to the amount of blood taken is 1:9. Material for research............... citrate plasma, blood Scope of application............................ coagulation study Centrifugation................................ 2000 - 2500 g - 10-15 minutes

The series is designed for heat treatment according to pre-created programs. The presence of remote control and a number of software options allows you to use the product for long-term heat treatment modes. Vacuum drying cabinets can be used for: - gentle drying of thermo- and oxygen-sensitive substances, such as food, medicinal, cosmetic products; - complete removal of residual moisture from heat-sensitive components with a complex shape, such as components of electronic equipment, jewelry, watches and other precision mechanics; - removal of air when filling the molds with a compound, followed by solidification at a given temperature; - removing air from the product and replacing it with another necessary gas medium; - tempering, annealing or aging of metals with an appropriate processing temperature in a vacuum or protective environment; - drying of products after washing in flammable solvents (special version); - testing devices under low pressure conditions under various temperature conditions.

The Provita company offers adsorption dryers with cold and hot regeneration of its own production. Industrial installations are equipped with high-quality components that ensure reliability and long service life. They are capable of operating at a pressure of 4 to 16 bar and are drained to a TRD (dew point under pressure) of -70 ° C. Working pressure: 4 — 16 bar Dew point: -20 to -70°C Capacity: from 50 to 5000 m3/hour

DPSS lasers of the KLM-470/x series are optimal sources of coherent radiation for the construction of control and automation systems, alignment and marking devices, for scientific and medical purposes. Technical specifications Radiation output power: up to 20W Radiation wavelength: 470 nm Output beam diameter: 1.5mm Divergence of the radiation beam: 1.3 mrad Instability of radiation power: 5% Type of modulation: TTL or analog Time to enter the mode: 15min Spectral line width: 0.1nm

A liquid flask with an adjustable layer thickness of the liquid under study is made in the form of an optical-mechanical attachment installed in the cuvette compartment of the FT-801 spectrometer. It contains focusing optics, removable holders of two windows-substrates with a diameter of 10 mm and two adjusting screws placed on the upper panel of the console housing and designed to set the required gap between the windows. A liquid of any degree of viscosity is pre-applied in the form of a small drop to the lower window and then, in the process of smooth convergence of the windows, evenly fills the gap between them. By rotating the adjusting screws and observing the transmission spectrum online, the user has the opportunity to set the desired thickness of the liquid layer, guided by the overall intensity of the entire spectrum or by the intensity of specific absorption bands. In the presence of calibration, which is easy to create using the ZaIR 3.5 program for several samples with a known concentration, the cuvette allows quantitative measurements. The flask is indispensable in the analysis of mixtures containing impurities in small proportions. Technical specifications Transmission in the operating range of the spectrum, % of the input signal at least 50 The recommended number of scans when registering spectra is 16 Time of spectrum registration at 16 scans (resolution 4 cm-1), sec 20 Minimum volume of the studied liquid, mm3 1 The diameter of the focus spot, mm 3 Overall dimensions, mm 200×90×160 Weight, kg 1,1 The figure shows several spectra of the viscous lubricant "Buxol", illustrating the process of selecting the thickness of the sample layer between the windows. The measurement process has a high expressiveness and reproducibility, inexpensive replaceable substrate windows are used, the system is easy to configure and clean, a very small amount of sample is required to obtain high-quality spectra.