Technical data 

- Valve body thread with Female connection: UNI EN 10226-1 (ISO 7-1: 1994)

- Male connection valve sleeve thread: UNI EN ISO 228-1 

- Shank and nut thread: UNI EN ISO 228-1 

- REDUCED PASSAGE DN20

 

Flow direction: in both directions 

Minimum and maximum working temperature: -20 °C/+ 120 °C **

Maximum pressure (T = 120 ° C): 10 bar 

Nominal pressure (T = 20 ° C): PN 40 

** In the absence of steam; use with water and glycol mixtures for temperatures below 0 ° C

 

The valves must be used in the fully open or closed position.

 

Sealing O-Ring

Upper shaft seal O-Ring: VITON 70 Sh A (ASTM D2240) 

Lower shaft seal O-Ring: EPDM Peroxide 70 Sh A (ASTM D2240)

Shank O-Ring: Peroxide EPDM 70 Sh A (ASTM D2240)

Use the pair of red O-Rings for valve installation on Topway S steel manifolds, and the pair of black O-Rings for valve installation on Topway brass manifolds.

Both pairs of O-Rings are supplied in the package.