Pressure reducers are designed to maintain constant pressure downstream the valve regardless of fl uctuation of supply pressure. Regulators are used in steam- and air- pipe networks in order to prevent the installation against excess pressure increase. Other fluids are also permissible.


Reducer comprises three main units:
• valve (1), with stem bellow sealed,
• diaphragm  actuator  (2),
• control pressure adjuster (3).


• steel and stainless steel materials used
• maintenance-free bellows seal ensures high efficiency of the reducer
• high tightness of the shut-off due to the application of plugs with PTFE, EPDM and NBR sealings
• design reducing the noise level
• the possibility of fitting with piston or bellows actuators


Fluid fl owing through the valve constitutes the driving force of the regulator. The impulse of regulated pressure, as measured downstream the valve, is applied to the actuator pressure chamber (2). The resulting pressure on the actuator diaphragm is counterbalanced by the spring tension in the adjuster set (3).Thus, a change in the regulated pressure causes valve (1) opening or closing, and allows for keeping the reduced pressure constant at the valve outlet. .

Technical data
Regulator’s SizeDN 15; 20; 25; 32; 40; 50;
Nominal pressurePN 16; 40
Kvs coefficientKvs 0,6 ...33 m3/h
Max. fluid temp0 / +300°C
Setting ranges0,1 … 11,0 bar
Flow characteristicslinear
Leakage class• IV class PN-EN 60534-4
• VI class PN-EN 60534-4
Body Materials• GP240GH (1.0619)
• GX5CrNiMo 19-11-2, (1.4408)
Download file - Catalog card