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Andrews Expansion Vessel E319

Andrews

Andrews Expansion Vessel E319

Expansion vessel E319 from Andrews Water Heaters, listed for RSC 150, RSC 190 and RSC unvented system kit water heaters.

At a glance

  • Appliance family: RSC water heaters
  • Also known as 1821303
Manufacturer part no.
E319
Showing prices

£204.20

£170.17 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Andrews E319 is an expansion vessel used on Andrews RSC water heaters. It accommodates the expansion of water as it is heated, limiting the pressure rise within the system and reducing stress on the cylinder and its safety components. It is listed for the RSC 150, RSC 190 and the RSC unvented system kit.

Signs this part needs replacing

  • Water discharging from the pressure relief valve as the cylinder heats up
  • System pressure rising quickly during the heat-up cycle
  • Water weeping or pooling around the vessel connection
  • No air charge felt at the vessel valve when checked
  • Frequent topping up of system pressure to keep it within range

Before you order

  • Confirm the appliance model — RSC 150, RSC 190 or the RSC unvented system kit
  • Compare the failed vessel's physical size and connection against the new unit
  • Check whether the pressure relief valve has been discharging, as it may also need attention
  • Confirm the vessel's charge pressure suits the system's requirements

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.