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SISTO-10M Diaphragm valve
Diaphragm valve


Diaphragm valve to DIN/EN with threaded sockets; shut-off and sealing to atmosphere by spiral-supported diaphragm (DN 65 and above); 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
  • Industrial recirculation systems
  • Air-conditioning systems
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Technical Data

  • Nominal pressurePN 10
  • Max. nominal sizeDN 80
  • Max. allowed fluid temperature140 °C


  • 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.
  • Extended service life and pressure limit

Material number list – SISTO-10M

13 products
NameNominal size InletNominal pressureWeightMaterial numberPrice
SISTO-10M 5.1301-EPDM RP 1 1/2"Rp 1 1/2 (DN40)PN 104.1 KilogramM430A007
SISTO-10M 5.1301-EPDM RP 1 1/4"Rp 1 1/4 (DN32)PN 102.5 KilogramM430A006
SISTO-10M 5.1301-EPDM RP 1"Rp 1 (DN25)PN 101.6 KilogramM430A005
SISTO-10M 5.1301-EPDM RP 1/2"Rp 1/2 (DN15)PN 100.6 KilogramM430A003
SISTO-10M 5.1301-EPDM RP 2"Rp 2 (DN50)PN 106.4 KilogramM430A008


TitleFormatSizeLast change
Declaration of conformity (8630.8507_EN)PDF0.194/19/2021
TitleFormatSizeLast change
Operating Manual (0570.821_EN)PDF4.054/19/2021
TitleFormatSizeLast change
Type Series Booklet SISTO-10M (8641.102_EN)PDF0.324/19/2021

Technical Data

  • FunctionShut off/control flow
  • Connection typeInternal-thread connection
  • Design concept DriveWith electric actuator, With handwheel, With pneumatic actuator
  • Casing materialEN-GJL-250
  • Nominal pressurePN 10
  • Max. nominal sizeDN 80
  • Min. nominal sizeDN 15
  • Max. allowed fluid temperature140 °C
  • Min. allowed fluid temperature-10 °C

Sectional Drawings