Dial thermometers – test plugs

Self-sealing test plugs with screw connections and rubber self-sealing inserts are predominantly used on pipework installations allowing accessible tapping points for temperature instruments, with a maximum probe diameter of 4mm, when testing, maintaining, and commissioning HVAC installations.

The Brannan range of self-sealing test plugs are suitable for hot water, chilled water, and low temperature steam applications within the temperature range of -8⁰C to +125⁰C and a maximum pressure of 35 bar. They are not suitable for oils, other hydro-carbon fluids, or hazardous media.

They are available in ¼” BSPT M and ½” BSPT M connection size both with and without lagging extension.