High-pressure shut-off valves
Needle valves (valves), as well as its variety, are used as shut-off and control devices in pipelines with high pressure.
Types of high-pressure shut-off valves
In our assortment you will find valves designed for flanged, welded (with fittings), coupling, trunnion connection to the pipeline.
High-pressure needle valve, capable of operating under conditions of temperature differences in the range from -60 to +60 degrees Celsius. These valves are designed for pressure from 0.6 to 25 MPa.
Carbon steels:
Steel 1.0402, С22/Ск22 DIN; EN (EU), 1020 AISI, G10200 UNS (US), Ст. 20 ГОСТ 1050-88
The use temperature of the medium is from -40 to +425 C, the ambient temperature is from -40 to +40 C.
Cold-resistant steels:
Steel 40Mn4 DIN, G10350 (1035) UNS (US), Ст. 09Г2С (RU) — (body parts, pipes, junctions, spigots)
The use temperature of the medium is from -60 to +425 C, the ambient temperature is from -50 to +50 C.
Stainless steels:
Steel X12CrNiTi 18-9 DIN; EN (EU), 321 S31 ANSI, B.S. (US), Сталь 09Г2С (RU) — (body parts, pipes, junctions, spigots).
Температура использования от -196 до +600 С, окружающего среды от -50 до +50 С.
Carbon steels:
Steel 1.0402, С22/Ск22 DIN; EN (EU), 1020 AISI, G10200 UNS (US), Ст. 20 (RU).
Steel 1.3401 (X120Mn12) DIN, J91171 UNS (US), Ст. 20Х13 (RU).
Cold-resistant steels:
Steel 40Mn4 DIN, G10350 (1035) UNS (US), Ст. 09Г2С (RU)
Steel 1.3401 (X120Mn12) DIN, J91171 UNS (US), Ст. 20Х13 (RU).
Stainless steels:
Steel X12CrNiTi 18-9 DIN; EN (EU), 321 S31 ANSI, B.S. (US), Сталь 09Г2С (RU)
High ductility, heat resistance, high resistance to aggressive and oxidizing environments.
To ensure electrical insulation of the flanges from each other, gaskets made of paronite PMB (4 mm) are provided, a coating made of bakelite varnish protects against moisture saturation. Such gaskets can also be made of vinyl plastic (or fluoropolymer). The tightening pins are enclosed in split fluoroplast bushings.
Surfacing with electrodes or welding wire ESAB, OK Weartrode 55, Т-590Н, Castolin-Eutectic, LINCOLN ELECTRIC, ESAB, ASKAYNAK (EU, US), СВ-04х19н19, ЦН-12м ; ЦН-6л ; УОНИ 13/нж (RU).
The main applicable flange standards are ASME, ANSI, EN, DIN. All metal products are regulated by special documents, which contain all the basic information about the elements: dimensions, shape, types, types of connecting surface, pressure classes, materials and manufacturing methods.
Fasteners (stud, nut, washer) are used according to DIN EN ISO standards, depending on the load, climatic and temperature conditions of the pipeline valves.
Special types of primers and paints are used for anti-corrosion protection and long-term protection of metal in temperate and cold climates.
Service life, not less than (years) — 30.
Full service life (cycles) — 3000.
Time to failure of cycles, not less than — 1000.
Warranty operating time of cycles — 10000.
Until the end of 2021, discounts on products up to 20%.
To the attention of consumers
Production and delivery according to TU 3742-001-96231033-2006 in acc. GOST R 53671. Climatic versions and categories according to GOST 15150. Transportation and storage according to GOST 15150-69. Marking of fittings according to GOST 4666.