Pneumatic Products, Air Treatment (FRL)

Regulator Model 652

  • Rolling diaphragm to maximize 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 Model 652 ensures minimal pressure differences between set point and operating pressure. It has an adjustment range of 0.5-10 bar to maintain the required pressure level. It has been designed with a rolling diaphragm to maximize service life, a gauge for visual pressure control and a locking device to prevent accidental adjustment. Its high flow capacity of up to 7000 l/min and low pressure drop help save energy and cut costs. CEJN Model 652 is available with G 3/8" and G 1/2" 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 and larger sizes, refer to Model Mini, Model 651 and Model 160. Additional air preparation products are available in our air treatment range, including preassembled units.

Part No. A B C D F G H I J  
19 503 5204195035204 125 66 G 1/8" G 3/8" 34.5 69 71.5 63.5 61.5 -
19 503 5205195035205 125 66 G 1/8" G 1/2" 34.5 69 71.5 63.5 61.5 -
Regulators Part No. Connection Max inlet pressure Controlled pressure Max flow
  19 503 5204 195035204G 3/8"16 bar (232 PSI)0.5-10 bar (7-145 PSI)6530 l/min (230.5 CFM)
 19 503 5205 195035205G 1/2"16 bar (232 PSI)0.5-10 bar (7-145 PSI)7000 l/min (247.1 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: 16 bar (232 PSI)
Temperature range: -20°C — + 50°C (-4°F — + 122°F)
Material body: Aluminum
Controlled pressure: 0.5-10 bar (7-145 PSI)
Hysterisis: 0.2 bar (2 PSI)
Regulating device: Rolling diaphragm (very low hysterisis)
Material seal: Nitrile
Air Flow
Outlet pressure, bar (PSI) Regulator Model 652 Flow, l/min. (CFM)

Available files for download

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