Pneumatic Products, Air Treatment (FRL)

Regulators Model 653

  • Rolling diaphragm to maximise service life
  • Constant output pressure
  • Accurate pressure regulation


The job of a regulator is to regulate air pressure and keep it constant. This is especially important for certain pneumatic equipment. CEJN’s Model 653 ensures minimal pressure differences between the set point and the operating pressure. It has an adjustment range of 0.5 to 10 bar, to maintain the required pressure level. It has been designed with a rolling diaphragm to maximise service life, a gauge for visual pressure control and a locking device to prevent accidental adjustment. Its high flow capacity of up to 11500 l/min and its low pressure drop help save energy and cut costs. CEJN’s Model 653 is available with G 3/4" and G 1" threads. Application: Virtually every industry, e.g. manufacturing, food, processing, carpentry, paper mills, etc., relies on compressed air as an energy source. In a shared compressed air network, with numerous outlets and an extensive pipework system, air preparation units are especially important.


For smaller sizes please see Model Mini, Model 651 and Model 652. Additional air preparation products, including preassembled units, are available in our air-treatment range.

Part No. A B C D F G H I J L
19 503 2207195032207 178.4 90 - G 3/4" 46.5 93 96 76.5 101.9 -
19 503 2209195032209 178.4 90 - G 1" 46.5 93 96 76.5 101.9 -
Regulators Part No. Connection Max inlet pressure Controlled pressure Max flow
  19 503 2207 195032207G 3/420 bar (290 PSI)0.5-10 bar (7-145 PSI)10000 l/min (353.0 CFM)
 19 503 2209 195032209G 1"20 bar (290 PSI)0.5-10 bar (7-145 PSI)11500 l/min (406.0 CFM)


Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards.
Technical data
Media: Compressed air, neutral gas
Max. working pressure: 20 bar (290 PSI)
Temperature range: 5°C — + 50°C (41°F — + 122°F)
Material body: Aluminium
Controlled pressure: 0.5-10 bar (7-145 PSI)
Hysterisis: 0.4 bar (5 PSI)
Regulating device: Rolling Diaphragm
Material seal: Nitrile
Air Flow
Outlet pressure, bar (PSI) Regulators Model 653 Flow, l/min. (CFM)

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