Контакты:

Rotary check valves

  1. Home
  2. Rotary check valves
Клапан 19с38нж сборный
Клапан 19с38нж сборный
Клапан 19с38нж сборныйКлапан обратный фланцевыйКлапан 19с38нж приварной

Rotary check valves

It is used in the installation of modern pipelines as a protective valve that excludes the reverse flow of the working medium, special check valves are used.

Types of valves

Rotary check valves are manufactured in 3 variants of connection to the pipeline:
— Prefabricated inter-flange with mating flanges ( fig. 1 )
— Flanged (fig. 2 )
— Welded (fig. 3 )
All 3 options are fully ready for installation.
They are also distributed according to climatic conditions and environment: U1, CL, and UHL.

Valve type: Check valve. Dn (mm.): 15-600, Ru (kgf / cm2): 1.6-35 MPa

The simplicity and reliability of the design ensures smooth operation of the valve in all climatic conditions and pressure environments. The valves are repair-fit in the field.

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 of up to 20% for all customers!

This site uses cookies to store data. By continuing to use the site, you consent to the use of these files.