Südmo Constant Pressure Valve

Südmo Constant Pressure Valve

Pentair Südmo designed a balanced, 100 percent stainless steel valve that eliminates the issues related to diaphragm fatigue, while providing excellent control of back pressure with varying flow and viscosity characteristics. Pentair
Südmo’s lip seal arrangement provides easy maintenance compared to valves that use diaphragms.

What sets this Constant Pressure Valve apart from the competition is that it is available in more sizes – from 1 to 4 inches – and has a stainless steel regulating cone instead of a diaphragm. The simple design is a variation on our proven single seat valve range. It can be retrofitted into any existing system, regardless of manufacturer. With no automation required, the self-regulating air supply unit is set at installation and the need for adjustment is eliminated.

Any questions?

Fredrik Malmström
Solution Seller
Phone. +46 40-33 02 33


Anders Praem
Inside Sales Engineer
Phone. +45 2137 7759


Slawka Pedersen
Inside Sales Manager
Phone. +45 2137 7702


Tommi Penttilä
Sales Manager Conventional Power
Phone. +358 207 416 208


Materials Product wetted parts: 1.4404 (AISI 316 L)
Parts not product wetted: 1.4301 (AISI 304), 1.4307 (AISI 304 L)
Other materials on request
Sealing Elements Sealing materials (FDA) EPDM / PEEK
Temperatures Continuous operating temperature EPDM 130° C/265°F *
Sterilization temperature EPDM 150°C/302°F * (approx. 20 min.)
Pressures Operating pressure: 10 bar (145 psi)
Adjustment pressure: On request
Higher pressures on request
Surfaces Product wetted surfaces: Ra ≤ 0,8 μm
Connections Standard: Welding ends for pipes acc. to DIN 11850 series 2 (DIN 11866 series A), OD-tube (ASTM A270, DIN 11866 series C, ASME BPE-2009)
Option: Other tube diameters (e.g. DIN EN ISO 1127) on request

* Depending on operating parameters

  • One-piece balanced solid stainless steel plug
  • Standard FDA elastomers for dairy applications
  • Dual air supply for actuation during CIP to ensure 100% cleaning
  • No automation feedback loops required to ensure accurate constant back pressure
  • “Set and forget” self-regulating air supply unit
  • Low cost seal kit eliminates expensive diaphragm

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