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GAK Expansion Vessel Fitting- 3 Bar with Insulation 77932

Pre-assembled combination fitting for the connection of diaphragm expansion vessels up to 50 litres in sealed heating systems, according to DIN EN 12828 with a capacity of up to 50 kW.
Consisting of: Carrier made of solid cast brass with ¾” female connection at boiler end, integrated cap valve for connection of the diaphragm expansion vessel, approved safety valve ½” x ¾” with Teflon sealing ring can be rotated (response pressure 3 bar, capacity 50 kW).
Pressure gauge for heating installations Ø 63- ?” bottom connection (range 0-4 bar with red reference pointer) with mounting valve, self-sealing. Air vent ?”, 12 bar, with mounting valve – self-sealing, plus a two part insulation case.

Benefits
• Time saving installation with pre-assembled,leak tested assembly.
• Service friendly – pressure gauge and air vent with self-sealing mounting valves, can be replaced  without  draining the system.
• Safe venting due to top mounted connection for air vent.
• Environmentally friendly – packing material is used as the insulation.

Anti-Tamper Valve 77924 (3/4")

Anti-tamper valve ¾ x ¾”  for diaphragm expansion vessels in heating systems according to DIN EN 12828.
To be mounted at the water inlet of the expansion vessel.
The cap and lead seal of the anti-tamper valve safeguard against inadvertent valve closure.
The expansion vessel can be isolated from the heating system and drained via the drain valve for the required system test function or for replacement.
Nominal pressure PN 10.  Max. operating temperature 120°C.

Anti-Tamper Valve 77934 (1")

Anti-tamper valve 1 x 1”  for diaphragm expansion vessels in heating systems according to DIN EN 12828. To be mounted at the water inlet of the expansion vessel.

The cap and lead seal of the anti-tamper valve safeguard against inadvertent valve closure.

The expansion vessel can be isolated from the heating system and drained via the drain valve for the required system test function or for replacement.

Nominal pressure PN 10.  Max. operating temperature 120°C.

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