Pressure reducing valve - Model T679

mediums:

  • gases
  • liquids
  • steam

materials:

  • ductile cast iron
  • cast steel
  • stainless steel
  • bronze
  • DN15 to DN65 (1/2“ bis 2 1/2“)
  • PN16 to PN40
  • outlet pressure: 0,5–20 bar
  • with stainless steel bellow 1.4571
  • for liquids, gases and steam
  • EN-JS1030, 1.0619, 1.7357, 1.4408, 1.4410
Pressure reducing valve – Model T679

Pressure reducing valve – Model T679

self-operated, for steam, fluids and gases

The function of pressure reducing valves (pressure regulating valves) is, to reduce a varying or constant upstream pressure (inlet pressure) of the media to a constant reduced pressure (outlet pressure, back pressure) which is independent of the upstream pressure.

The pressure reduction occurs by throttling the free cross section between the seat and cone. Via a pulse line, which is already installed on the valve, the reduced pressure presses on a control piston. As a result, any change in pressure on the downstream pressure side is immediately converted into a lifting movement of the valve cone.

The valve is well suited for intermittent consumption. At zero consumption, that is, when the consumption on the downstream pressure side is zero, the valve closes safely by low pressure increase.

The pressure reducing valve T679 is suitable for compressible media, e.g. steam, compressed air, natural gas, nitrogen, as well as for incompressible media, e.g. water, oil, fuels, LPG (propane, butane) etc.

They are mainly used in industrial plants, plant engineering and process engineering.

Pressure reducing valves can be supplied with flanges, weld ends or threaded connections.

datasheet back
Installation length acc. EN 558-1
Model T679

Technical specifications

Installation length acc. EN 558-1

DN15202532405065
L(mm)130150160180200230290
H(mm)415415415415415575610
h(mm)9575759095115130
B1(mm)7575757575105105
B2(mm)8080808080110110

Flanges acc. to (DIN, JIS, ASME, ANSI)

view dimensions