SISTO-16TWA
Diaphragm valve to DIN/EN with flanged ends, straight-way pattern, for drinking water installations to DIN 1988, DIN-DVGW-approved for water acc. to test W 270, in compliance with the latest elastomers guideline of the German Environment Agency; shut-off and sealing to atmosphere by confined and supported SISTOMaXX diaphragm; position indicator with integrated stem protection. All moving parts are separated from the fluid by the diaphragm. Maintenance-free.
Technical Data
- Function Shut off/control flow
- Connection type Flange
- Design concept Drive With handwheel
- Casing material
- EN-GJL-250
- GX2CRNIMO19-11-2
| - Nominal pressure PN 16
- Max. nominal size DN 200
- Min. nominal size DN 15
- Max. allowed fluid temperature 90 °C
- Min. allowed fluid temperature -10 °C
|
Benefits
-
eliable sealing ensured by one single sealing element (the diaphragm), which provides hermetic sealing to atmosphere and absolutely tight shut-off. The specially enclosed diaphragm ensures long service life and high operating reliability. -
Increased functional reliability of the diaphragm thanks to balanced diaphragm suspension -
Maintenance-free as all moving parts are separated from the fluid by the diaphragm. -
High level of reliability as the thrust bearing minimises the closing torques required. | - Optimised long-term operation as the position indicator with integrated stem protection prevents the ingress of contaminants.
- High level of reliability as the valve hydraulics without dead volume ensure optimum conditions for high-purity fluids.
-
Long service life as the diaphragm support increases valve life and extends the pressure limit of the diaphragm. -
Both the SISTOMaXX diaphragm material and the body material 1.4409 and coating material polyamide (Rilsan) meet the recommendations of the German Environment Agency (Elastomer Guideline) and DVGW Worksheet W270. |
