| General Information |
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| General Catalogue |
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| At a glance |
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| SDD 911, PRESSURE RELIEF VALVES - ND 10 to ND 25 |
General Catalogue 911-03 |
SDD911
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SDD 911, PRESSURE RELIEF VALVES - ND 10 to ND 25
- All wetted parts in plastic
- Protection of pumps and process lines
- Body parts in PPH
- PTFE coated diaphragm
- Adjustable from 0.5 to 10 bar
- From ND 10 to ND 25
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A pressure relief valve SDD 911 limits the static pressure to a constant and maximal settled value by opening the outlet (to the discharge line) when the pressure is overriding.
An EPDM diaphragm, PTFE coated, separates the mechanical parts body and the channel.
All wetted parts are in plastics.
The seat seal is in EPDM or FPM according to the model and connections.
Without any metallic parts exposed to the atmosphere it allows a location in corroding vapours.
The SDD 911 valves may be used as pressure relief valves on volumetric pumping system.
These equipment protection devices may be fitted in any position, in line, or on by-pass according to the application.
Body: PPH (Glass fibre reinforced Polypropylene)
Diaphragm: EPDM, PTFE coated
Seat seal and O-rings: EPDM or FPM
Pressure: Class PN 10 (at 20°C)
Dimensions: ND 10 to ND 25
Hysteresis: Approx. 0.3 bar
Connections, DIN 8068 threaded
PVC union to glue on site
PPH union to weld on site
Temperature limits
PPH: 10 to 70°C
PVC: 10 to 50°C
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PRESSURE RELIEF VALVES - ND 10 to ND 25
SDD 911 |
General Catalogue
911-03 |
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