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SISTO-20 Diaphragm valve

Diaphragm valve SISTO-20

Weir-type diaphragm valve to DIN/EN with flanged ends, threaded socket ends or socket weld ends, in straight-way pattern; shut-off and sealing to atmosphere by supported and confined diaphragm; body with coating or lining, position indicator with integrated stem protection. All moving parts are separated from the fluid by the diaphragm. Maintenance-free.
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Main Applications

  • Mining
  • General irrigation systems
  • Chemical industry
  • Homogenisation

Technical Data

Nominal pressure
PN 16
Max. nominal size
DN 200
Maximum allowable fluid temperature
160 °C

Material number list – SISTO-20

32 products
Material number
Price
SISTO-20 1.4409-EPDM Rp1 (DN25) PN162.5 kgM284A003
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SISTO-20 1.4409-EPDM Rp1 1/2 (DN40) PN163 kgM284A005
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SISTO-20 1.4409-EPDM Rp1 1/4 (DN32) PN162.5 kgM284A004
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SISTO-20 1.4409-EPDM Rp1/2 (DN15) PN160.5 kgM284A001
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SISTO-20 1.4409-EPDM Rp2 (DN50) PN165 kgM284A006
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Benefits

  • Reliable sealing to atmosphere and absolutely tight shut-off
  • The diaphragm provides absolutely tight shut-off as well as hermetic sealing to atmosphere and of all operating elements.
  • Maximum service life and pressure limit

Technical Data

Function
Shut off/control flow
Connection type
Internal-thread connection,
Flange,
Butt weld ends,
Socket weld ends
Design concept Drive
With electric actuator,
With handwheel,
With pneumatic actuator
Casing material
EN-GJS-400-18-LT,
1.4408
Nominal pressure
PN 16
Max. nominal size
DN 200
Min. nominal size
DN 15
Maximum allowable fluid temperature
160 °C
Minimum allowable fluid temperature
-20 °C

Sectional Drawings

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