Vacuum BrEaker & Air Vent Valves

Thank to the compact design, our vacuum breaker and air vent valves are suitable for clean water, sea water and cooling water.

vacumm breaker

Technical specifications

Nominal Size
From DN 1” up to 16”

Class
150 to 300

Materials

  • Lined carbon steel
  • Stainless steel
  • Duplex
  • Body material ASTM A890 GR4A
  • Body material ASTM A182 F51 (bar stock)
Request data sheet

Features

  • Connection flanged #150 RF or DIN PN 16/40
  • Connection to pipe DN 4” #150 RF
  • Simple and reliable design
  • EPDM o-rings
  • HDPE floating buoy FDA service
  • Orifice of the same DN size to ensurea great air flow
  • Small orifice for water de-aeration under pressure (operating conditions)

All valves can be provided with or without spring closing cartridge and adjustable under pressure.

The VTS type includes a spring-loaded third float, to control outwards air release when filling in the pipe.

custom air vent valves

test

Bremer tests and certifies all valves according to API598, BS6755 part I or DIN3230. Upon request Bremer can perform all the following additional tests, internally or using:

  • High Temperature Test
  • Low Temperature Test
  • Vacuum Test
  • Cycle Test
  • Nitrogen Hight Pressure Gas Test
  • Fugitive Emission with Helium
  • Dye Penetrant Test
  • Magnetic Particles Test PMI
  • Ultrasonic Test
  • RX Test