Pressure Reducing Valves

Direct-acting Pressure Sustaining Valves

Pressure sustaining valve PS46

ADCA's PS46 series pressure sustaining valves are bellows-sealed, single seat,diaphragm or piston controllers that operate without auxiliary power.

These valves are designed for use with steam, compressed air and other gases compatible with the construction.

These valves are particularly suitable for maintaining steam pressure in all power systems and processes where they must be kept under control.

  • Specially designed high durability bellows, which provides balanced pressure and frictionless plug stem.
  • Rugged construction (fit and forget).
  • Interchangeable actuators and adjusting springs.
  • PTFE/GR soft gasket for steam use.
  • Soft nitrile rubber gasket for use with air and gases.
  • Silent flow divider.
  • Sensor tube in body.

  • Steam, compressed air and other gases compatible with construction. 
  • Limited use with liquids. 
  • Consult manufacturer before installing valve with liquids.

  • PS46S and PS46ST or N: carbon steel.
  • Suffix T: PTFE/GR soft sealing.
  • Suffix N: soft sealing with nitrile rubber.

  • DN 15 to DN 100.

  • EN 1092-1 flanges PN 16 or PN 40.
  • Standard flanges PN 16 DN 65 are supplied with 4 holes. 8 holes, according to EN 1092-1/-2 on request.

  • A1A, A11A, A3A, A4A and P55 - carbon steel.
  • A2A and A21A - SG iron or carbon steel.

  • See IMI - Installation and maintenance instructions.

Pressure sustaining valve PSW46B

(EN) ADCA's PSW46B series pressure sustaining valves are diaphragm or piston operated without auxiliary power.

Designed for use with water, compressed air and other liquids and gases compatible with the construction.

  • Pressure balanced due to robust piston design.
  • Soft sealing to meet tight shut-off requirements.
  • Robust construction (fit and forget).
  • Interchangeable actuators and adjusting springs.
  • Silent flow divider.
  • Sensor tube in body.

  • Water, compressed air and other liquids or gases compatible with the construction.

  • PSW46BS - carbon steel.

  • DN 50 to DN 100.

  • EN 1092-1 flange PN 16 or PN 40.
  • Standard flanges PN 16 DN 65 are supplied with 4 holes. 8 holes, according to EN 1092-1/-2 on request.

  • A1A, A11A, A3A, A4A and P55 - carbon steel.
  • A2A and A21A - SG iron or carbon steel.

  • See IMI - Installation and maintenance instructions.

Diaphragm sensing pressure sustaining valves PS4

The ADCA PS4 is a series of direct acting, direct acting spring loaded diaphragm diaphragm valves for use with compressed air, water and other gases or liquids compatible with the construction.

The primary purpose of the valve is to maintain upstream pressure in applications with small loads.

These valves are also specifically recommended to function as pilot valves in combination with other pressure regulators.

  • Compact design.
  • External diaphragm sensing connection.
  • Different soft seals for water and gases.
  • Manometer connection on the body.

  • Compressed air, water and other gases and liquids compatible with the construction.

  • PS4S - carbon steel.
  • PS4i - stainless steel.

  • 1/2" a 1".

  • ISO 7 Rp or NPT female thread.

  • Horizontal installation.
  • A "Y" strainer must be installed upstream of the valve.
  • See IMI - Installation and Maintenance Instructions

Diaphragm sensing pressure sustaining valve PS7

ADCA's PS7 series is a spring loaded, direct acting diaphragm valve with sustained pressure sensing. They are designed for use with steam, compressed air and other gases compatible with materials of construction.

They are suitable for pressure sustaining applications involving very small loads. They are also specifically recommended to function as pilot valves in combination with other pressure regulators.

  • Compact design.
  • Stainless steel diaphragm.
  • 1/8" pressure gauge connection on body.
  • Top cap (adjusting screw with cap).
  • External sensing connection.
  • Low pressure cap.
  • Dome version.
  • Steam, compressed air and other gases
  • compatible with the construction.

  • PS7S - carbon steel.
  • PS7SS - stainless steel.

  • 1/4" y 3/8".

  • ISO 7 Rp or NPT female thread.

  • Horizontal installation.
  • A "Y" strainer must be installed upstream of the valve.
  • See IMI - Installation and Maintenance Instructions

Diaphragm sensing pressure sustaining valve PS30SS

The ADCA PS30SS is a series of direct acting, spring loaded, direct acting diaphragm diaphragm pressure sustaining valves.

These regulators are designed for use with compressed air, water and other gases and liquids compatible with the valve's materials of construction and design.

They are suitable for point-of-use pressure maintenance applications in laundries and dry cleaners, food industries, sterilizers, etc.

  • Compact design.
  • All stainless steel construction.
  • Various sealing options to meet compatibility requirements.
  • Pressure gauge connection on the body.
  • Various soft valves for liquids and gases.
  • Dome version.
  • Top cap (adjusting screw with cap).
  • Degreasing for oxygen application.

  • Compressed air, water and other gases and liquids compatible with the construction.

  • PS30SS - stainless steel, membrane sensing.

  • 1/2" to 1"; DN 15 to DN 25.

  • Female thread ISO 7 Rp or NPT.
  • Flanged EN 1092-1 PN 40.
  • Flanged ASME B16.5 Class 150 or 300.

  • Horizontal installation.
  • See IMI - Installation and maintenance instructions.

Diaphragm sensing pressure sustaining valve PS31SS

ADCA's PS31SS is a series of direct-acting, spring-loaded, piston-sensing pressure sustaining valves.

These regulators are designed for use with compressed air, water and other gases and liquids compatible with the valve's materials of construction and design.

They are suitable for point-of-use pressure maintenance applications in laundries and dry cleaners, food industries, sterilizers, etc.

  • Compact design.
  • All stainless steel construction.
  • Various sealing options to meet compatibility requirements.
  • Pressure gauge connection on the body.
  • Various soft valves for liquids and gases.
  • Top plug (adjusting screw with cap).
  • Degreasing for oxygen application.

  • Compressed air, water and other gases and liquids compatible with the construction.

  • PS31SS - stainless steel, piston sensing.

  • 1/2" to 1"; DN 15 to DN 25.

  • Female thread ISO 7 Rp or NPT.
  • Flanged EN 1092-1 PN 40.
  • Flanged ASME B16.5 Class 150 or 300.

  • Horizontal installation.
  • See IMI - Installation and maintenance instructions

Pilot operated Pressure Sustaining Valves

Pilot operated pressure sustaining valves PS47

ADCA's PS47 piloted pressure sustaining valves are designed for use with steam, compressed air, nitrogen and other gases compatible with materials of construction. The PS47 accurately senses upstream pressure and acts to minimize or disperse excess pressure.

  • Precise upstream pressure control from 0.07 bar to 17 bar.
  • Rugged steel or stainless steel construction.
  • Guided piston and valve stem.
  • Hardened plug.
  • Soft plug.
  • Low pressure top.
  • Dome version.
  • Bottom cap drain connection.
  • Stellited plug and seat.
  • External sensing connection.

  • Saturated steam, compressed air and other gases (group 2) compatible with the construction (except oxygen).

  • PS47 - steam steel versions.
  • PS47i - stainless steel steam versions (only available from DN 15 to DN 50).
  • PS47G - steel versions for compressed air and gases.
  • PS47Gi - stainless steel versions for compressed air and gases.

  • 1/2" to 2"; DN 15 to DN 50.

  • Flanged EN 1092-1 PN 40.
  • Flanged ASME B16.5 Class 150 or 300.
  • Female thread ISO 7 Rp or NPT.
  • Socket weld (SW) ASME B16.11.

  • Horizontal installation.
  • See IMI - Installation and Maintenance Instructions.
  • In steam applications, a "Y" strainer, moisture separator and steam trap must be installed upstream of the valve.