Pressure reducing valves reduce a high and frequently fluctuating pressure to an adjustable constant pressure downstream of the valve. A spring keeps the valve open and this closes as the outlet pressure rises.
1. Universal Valve for Small to Medium Flow Rates - DM 555
The DM 555 pressure reducer
is a spring-loaded proportional controller for universal use with small to medium throughputs. The housing and internal parts in contact with the medium are made of stainless steel (1.4404 / 316L) with excellent corrosion resistance. The valve cone has a soft or hard seal.
2. Standard Cast Valve for Liquids and Gases - DM 618
The DM 618 pressure reducer
is a diaphragm-controlled, spring-loaded proportional regulator with relief for high throughputs. The valve housing is made of cast steel. The diaphragm housing, spring bonnet and inner parts are made of stainless steel (1.4404 / 316L). The valve cone has a soft seal.
The pressure reducer DM 652
is a diaphragm-controlled, spring-loaded proportional regulator with relief for universal use with high throughput. This valve is made of deep-drawn stainless steel with an excellent surface quality. It is corrosion-resistant, very light and compact.
The valve cone is relieved and has a soft seal.
4. Valve for Hygiene Applications / Ultrapure Media - DM152
angled design suitable for small and medium flow rates | useable for liquids, gases, steam | completely made of deep-drawn CrNiMo-steel | virtually pocket-free, can be electropolished, corrosion resistant, lightweight and compact, requires no external energy | extended cleaning intervals for CIP/SIP cleaning procedures, less energy expenditure owing to thin wall thickness, easy-to-maintain owing to the clamp system, can be actuated pneumatically.
5. Valve for High Pressures + High Temperature - DM 401
The Pressure Reducer DM 401 is a diaphragm or piston-controlled spring-loaded proportional control valve with pressure relief for large flow rates at low pressure drops. The valve cone is fitted with a metallic seal.
6. Valve for Hygiene Applications | Ultrapure Media - DM 462
Angled design for large flow rate | usable for liquids, gases, steam | completely made of deep-drawn CrNiMo steel | virtually pocket-free, can be electropolished, is corrosion resistant, lightweight and compact, requires no external energy | extended cleaning intervals for CIP|SIP cleaning procedures, less energy expenditure owing to thin wall thickness, easy-to-maintain owing to the clamp system, can be actuated pneumatically.
7. Valve for Hygiene Applications / Ultrapure Media - DM462V
for medium flow rates | of straight or angled design, also available combined with three connecting pieces | suitable for liquids, gases, steam | completely made of CrNiMo steel with deep-drawn elements | virtually pocket-free, can be electropolished, is corrosion resistant, lightweight and compact | requires no external energy, compressed gas control possible | extended cleaning intervals for CIP/SIP cleaning procedures, less energy expenditure owing to thin wall thickness | easy-to-maintain.
The Pressure Reducer DM 505 is a diaphragm-controlled spring-loaded proportional control valve for small volumes. This pressure reducer is manufactured from deep-drawn stainless steel featuring excellent corrosion-resistance.
The tubular inlet spigot of the valve body accommodates the seat aperture. The soft-sealing valve cone is guided in the seat assembly and connected with the control diaphragm by means of a stirrup which surrounds the seat assembly.
The Pressure Reducer DM 505Z is a diaphragm-controlled spring-loaded proportional control valve for small volumes. This pressure reducer is manufactured from deep-drawn stainless steel featuring excellent corrosion-resistance.
The tubular inlet spigot of the valve body accommodates the seat aperture. The valve cone is guided in the seat assembly and connected with the control diaphragm by means of a stirrup which surrounds the seat assembly.
10. High Pressures for Medium Flow Rate - DM 510, 514
The Pressure Reducer DM 510 and DM 514 are diaphragm, piston or bellows-controlled spring-loaded proportional control valves for high inlet and outlet pressures. They can be supplied with three types of connections: sockets, flanges and welding ends. Each size of valve may be fitted with three different seats. The valve cone may be fitted with a soft or metallic seal.
11. High Press. and Control Ranges lower than 2 bar - DM 512
The Pressure Reducer DM 512 are diaphragm-controlled spring-loaded proportional control valves for high inlet and low outlet pressures. They can be supplied with three types of connections: sockets, flanges and welding ends. Each size of valve may be fitted with three different seats. The valve cone may be fitted with a soft or metallic seal.
12. Milibar Control Valve for High Flow Rates - DM 586
The Pressure Reducer DM 586
is a diaphragm-controlled, spring-loaded and balanced proportional control valve for high flow rates especially for the control of millibar ranges. This pressure reducer is manufactured from deep-drawn stainless steel (1.4404 / 316L) featuring excellent corrosion-resistance. The valve cone is fitted with a soft seal.
13. Milibar Control Valve for potentially explosive atmospheres - DM 586 ATEX
The Pressure Reducer DM 586 ATEX
is a diaphragm-controlled, spring-loaded and balanced proportional control valve for high flow rates especially for the control of millibar ranges in potentially explosive atmospheres. The valve is made of deep-drawn stainless steel (1.4404 / 316L) with excellent corrosion-resistance. The valve cone is soft-sealed.
The Pressure Reducer DM 618Z
is a diaphragm-operated, spring-loaded and balanced proportional valve for high flow rates. The valve body is made of cast steel. Diaphragm housing, spring cap and internal parts are made of stainless steel 316L. The valve cone is fitted with a metallic seal.
15. ASME Valve for Liquids and Gases - DM 618 ASME
The Pressure Reducer DM 618 ASME
is a diaphragm-operated, spring-loaded and balanced proportional valve for high flow rates. The valve body is made of cast steel. Diaphragm housing, spring cap and internal parts are made of stainless steel 316L. The valve cone is fitted with a soft seal.
The pressure reducer DM 618Z ASME is a diaphragm-controlled, spring-loaded proportional regulator with relief for high throughputs. The valve housing is made of cast steel. The membrane housing, spring hood and internal parts are made of CrNiMo stainless steel. The valve cone has a hard seal.
17. High Pressure Valve, Medium and High Flow Rates - DM 620
The Pressure Reducer DM 620
are diaphragm-controlled spring-loaded and balanced proportional control valves for high inlet and outlet pressures. They can be supplied with three types of connections: sockets, flanges or welding spigots. Each size of valve may be fitted with three different seats. The valve cone may be fitted with a soft or metallic seal.
The Pressure Reducer DM 652 ATEX
is a diaphragm-controlled, spring-loaded and balanced proportional control valve for the use in potentially explosive atmospheres. The valve is made of deep-drawn stainless steel (1.4404 / 316L) with excellent corrosion-resistance. The valve cone is soft-sealed.
The Pressure Reducer DM 664 valve is a diaphragm-controlled spring-loaded and balanced proportional control valve for large volumes of non-hazardous media. This pressure reducer is manufactured from deep-drawn stainless steel (1.4404 / 316L) featuring excellent corrosion-resistance. The valve cone is fitted with a soft seal.
21. Valve for High Pressures for Small Flow Rates - DM 701
The Pressure Reducer DM 701 is a piston controlled, spring loaded proportional control valve for small capacities with high pressure drops. The valve cone is fitted with a metallic seal.
Millibar control valve for medium flow rates, very precise, available in various versions | suitable for liquids and gases | completely made of deep-drawn CrNiMo steel | optimal surface characteristics, highest regulating accuracy, lowest control ranges up to a limit of 2 millibar.
23. Millibar Control Valve for potentially explosive atmospheres - DM 762 ATEX
The Pressure Reducer DM 762 ATEX
is a diaphragm-controlled spring-loaded proportional control valve for very small outlet pressures and medium volumes in potentially explosive atmospheres. This pressure reducer is manufactured from deep-drawn stainless steel (1.4404 / 316L) featuring excellent corrosion-resistance. The valve cone is fitted with a soft seal.
How Pressure Reducing Valve Work 
