Swing check valves are used in pipeline systems as automated safety devices, which prevent the reverse flow of the working medium in case of emergency situation.
The valves of this type are installed on horizontal as well as on vertical parts of the pipelines, where it’s easy to perform service checks and maintenance. The installation position on a horizontal pipeline – with the cover upward, on vertical pipeline – with working medium flow from beneath, under the valve disc.
The valve body has the welding deposition seal of Cr-Ni alloy which provides better sealing.
During normal operating conditions the check valve is in open position because of the working medium pressure. During emergency situation such as working medium lack or reverse flow the check valve closes automatically.
Leak resistance (standard GOST 9544-2005) – Class D.
Climatic versions (standard GOST 15150-69) – U – for moderate temperature zone; Т – for tropical, high-temperature zones.
Placement category (standard GOST 15150-69) – 1, 2, 3.
When ordering check valves, please specify correctly: product name and identification number, climatic version&placement category under GOST 15150-69 standard, product identification by TS 3740-003-71228244-2004 standard.
|Product ID||DN, mm||Working medium||Рр (PN), MPa||Т, ˚С||Body material||Flow friction characteristic||D1, mm||D2, mm||L, mm||Н, mm||А, mm||Weight, kg||Model|