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Main O-Ring Volumetric Water Governor Under Valve 5110977

Main

Main O-Ring Volumetric Water Governor Under Valve 5110977

O-ring seal for the volumetric water governor valve on Main Multipoint BF and Multipoint BF ErP water heaters.

At a glance

  • Part type: O-ring
  • Also known as 1160654
Manufacturer part no.
5110977
GC number
H18-238
Showing prices

£12.17

£10.14 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Main 5110977 is an O-ring that seals the volumetric water governor valve on Main Multipoint BF water heaters. It fits under the valve and prevents water escaping past the valve body. Part number 5110977.

Signs this part needs replacing

  • Water weeping or dripping from beneath the volumetric water governor valve
  • Visible perishing, flattening or cracking of the O-ring
  • Scale or corrosion deposits around the valve seating
  • Water tracking down the valve body or nearby pipework

Before you order

  • Confirm your appliance is a Main Multipoint BF or Multipoint BF ErP
  • Check part number 5110977 against the manufacturer's parts list for your model
  • Inspect the valve seating and mating surfaces for scale or damage before fitting

Not sure which part?

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