Dome Pressure Regulator 747LE/S, complete solution

Dome Pressure Regulator 747LE/S, complete solution

Brass, connections G 1“ F, Kv value 3.6 / Cv value 4.2

  • maximum pressure stability even during flow and temperature fluctuations
  • outlet pressure 0.5-30 bar
  • suitable for various technical gases
  • ready-to-use
  • option: lockable spindle hood against unauthorized adjustment

Product of WITT 




High-performance dome-loaded pressure regulator set.
For high and varying flows requiring maximum pressure stability.


Pilot Control Tube (PCT)
One of the features enabling highly accurate control of outlet pressure

Balanced Seat Design (BSD)
Further enabling control precision, high reliability and low maintenance

A complete solution, ready to use
With integrated pilot pressure regulator, and stainless steel pressure gauges, completely assembled and tested

Own-medium controlled
Enabling autonomous operation (no separate gas supply required)

Closed system
Self-relieving design, but no gas is released to the atmosphere

Simple to install and operate
Removable spindle enables the simple setting of the required outlet pressure
Can be positioned at any angle/orientation
For indoor and outdoor installation.

Glycerine-filled manometer, unfilled version for oxygen

Operation / Usage:

Ideal for process gas supply where pressure accuracy is required even when inlet pressures and flow rates are varying.
High flow rates and outlet pressure accuracy are achieved, even when the difference between inlet and outlet pressures is small.

Annual testing of body leak tightness is recommended.
Depending on the application, moving wetted parts may need periodic replacement.
Device-specific Repair-Kit is available upon request.

Company certified according to ISO 9001, ISO 22000 and PED 2014/68/EU Module H
CE-marked according to PED 2014/68/EU
ATEX 2014/34/EU with ignition hazard analysis
according to EN 1127-1, DIN EN 13463-1 and ZH1/200
Analysed for Food Safety per HACCP-Analysis
Fulfils the requirements of EU Regulations (EC) 1935/2004, and (EC) 2023/2006
Fulfils the requirements of German Food and Feed (LFGB) Law, and is suitable for contact with food

Lockable spindle hood against unauthorized adjustment

Available upon request:
Certificates and test reports
Other Dome types
Switchover systems / parallel supply systems
Customer-specific / customised versions

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Dome Pressure Regulator 747LE/S, complete solution