Free Vents | Rim Vents | Gauge Hatches

Rim Vent

Rim Vent

CNC 104 Series Rim Vent provides low pressure only relief for storage tanks and originally designed for floating roof tanks.

Our Floating Roof vents come in the following configuration

  • Aluminium construction
  • Standard 6″ flanged or screwed units
  • Set pressure 0.865″ wg
  • Low cost pressure relief
  • Stainless steel screen mesh
  • Ideal for floating roof tanks
  • Instantly available

The Floating roof rim Vent has a cast body which can be flanged or threaded for connection to the storage tank, the weatherhood protects the exhaust port of the rim vent from atmospheric conditions. The rim vents are fitted with a hinged pallet lift set to lift when the set pressure in the tank exceeds the set-pressure allaowing the air/gas to flow

CNC104 Rim Vent

Free Vents | Rim Vents | Gauge Hatches

Tank Free Vents

Tank Free Vents or Conservation vent prevents the build-up of internal tank pressure.

CNC 101 Atmospheric Gauge hatch

Foot Operated Non Lockable Gauge Hatches for atmospheric tanks

CNC 102 Lockable Gauge Hatch

Foot operated Lockable gauge hatches to allow easy access to liquid storage tanks for manual level measurement, Gauge hatches are available in aluminium or steel from 2" to 12"

CNC 103 Combination Gauge Hatch

Gauge Hatches combined with Pressure and Vacuum Relief CNC 103 Combination Gauge Hatches are a combined unit allowing access for manual level gauging or sampling and providing pressure & vacuum relief

Combined Free Vents & Sampling Hatch

Gauge Hatches combined with Free Vent Hatches