125
125 Swing check valves 1
125
Wafer inter-flanged swing check valve
  • Acceptable working temperature range (peaks): -20 (see suitable fluids)–110 °C
  • Working temperature range: 0 (no frost)–95 °C
  • Check valve opening pressure: 0,05 bar
  • Max working pressure art. 060 - 080: from G 3/8 to G 3 16 bar; from G 4 to G 6 10 bar
  • Max working pressure art. 125: 16 bar
  • Suitable fluids: water for thermal systems, glycol solutions (max 30%), domestic water
  • Threaded connections: ISO 228-1
  • On request: versions with galvanic treatment
  • Product codes
  • Description
  • Documentation
  • Alternative products
Product codes
Item code Size Download the 3D file
125050000 DN 50 1
125065000 DN 65 1
125080000 DN 80 1
125100000 DN 100 1
125125000 DN 125 1
125150000 DN 150 1
125200000 DN 200 1
125250000 DN 250 1
Description
Barberi® swing check valves are monodirectional devices, allowing the backflow prevention of fluid under pressure. They are normally used in heating systems, central heating systems, heat generators (wall-mounted boilers, solid fuel generators, heat pumps), thermal solar systems, generic industrial and agricultural water systems. The inner hydraulic seal is obtained through the forces exerted by the body of a swinging obturator and by the fluid pressure against a gasket which guarantees the seal even at very low back pressures. Since these valves work with gravity force, directly acting on the swinging obturator (clapet or swinging obturator), they don’t have a universal characteristics for the installation position. The advantage of these valves is the low head loss thanks to the body round shape and the big bore obtained from the swinging movement of the obturator; these features make these valves also work silently. There are versions with rubber-metal seal (060 and 125) or metal seal (080) used especially with thick or less liquid fluids (for example sewages). Swing check valves (060, 080) are equipped with a plug to inspect the valve.
Documentation
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