Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Tesla EVSV Expansion Vessel Service Valve

Alternative

Tesla EVSV Expansion Vessel Service Valve

Tesla EVSV expansion vessel service valve with 3/4" MBSP x 3/4" FBSP connections and drain-off facility.

At a glance

  • Also known as 2081343
Manufacturer part no.
EVSV
Showing prices

£13.32

£11.10 ex. VAT · VAT at 20%

Available to order · 1-2 working days
Available to order · 1-2 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Tesla EVSV is a 3/4" MBSP x 3/4" FBSP expansion vessel service valve with a drain-off facility. It is fitted on pressure vessel and accessory installations to isolate the expansion vessel from the heating system and to allow the vessel to be drained during servicing. The valve sits within the isolation valve range for boiler and pressure vessel spares.

Signs this part needs replacing

  • Water weeping from the valve body or spindle
  • Drain-off port failing to seal when closed
  • Handle or spindle seized, so the vessel cannot be isolated
  • Corrosion or scale build-up on the brass body
  • Expansion vessel cannot be isolated from the system

Before you order

  • Confirm both connections: 3/4" male BSP and 3/4" female BSP
  • Check whether a drain-off facility is required at this point
  • Verify clearance and access at the expansion vessel connection
  • Isolate and drain the system before fitting

Not sure which part?

Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.