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Worcester Bosch Flow Regulator Type E-W 11Ltr Brown 87161070440

Worcester Bosch

Worcester Bosch Flow Regulator Type E-W 11Ltr Brown 87161070440

Worcester Bosch 87161070440 Type E-W 11 litre brown flow regulator for Greenstar combi and system appliances.

At a glance

  • Part type: Flow regulator
  • Also known as 1015121, N7009
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161070440
GC number
H22-460
Showing prices

£9.19

£7.66 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 Worcester Bosch 87161070440 is a Type E-W flow regulator rated at 11 litres and supplied in brown. It is fitted in the water circuit of Worcester Bosch Greenstar combi and system appliances, where it holds the flow rate to the value the appliance was designed around. Keeping flow within that limit protects the heat exchanger and helps the boiler maintain a stable outlet temperature.

Signs this part needs replacing

  • Domestic hot water flow at the tap falls below the level the appliance normally delivers
  • Outlet temperature swings, or the boiler cycles repeatedly while a hot tap is running
  • Measured flow rate is short of the appliance rating with no other restriction found elsewhere in the circuit
  • Scale or debris is visible in or around the regulator body
  • The regulator body is cracked, distorted or no longer seats correctly in its housing

Before you order

  • Confirm the appliance GC number against the compatibility list before ordering, as more than one flow regulator is used across the Greenstar range
  • Check the number on the existing regulator matches 87161070440
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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