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Popular Cylinder TPR28 7 Bar 28mm x 1'' T&P Relief Valve 200mm Probe

Popular Cylinder

Popular Cylinder TPR28 7 Bar 28mm x 1'' T&P Relief Valve 200mm Probe

7 bar temperature and pressure relief valve with 28mm x 1'' connections and a 200mm probe for unvented cylinder cold water inlet controls.

Manufacturer part no.
HRP0171
Showing prices

£360.00

£300.00 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 TPR28 is a 7 bar temperature and pressure relief valve from Popular Cylinder, supplied with 28mm x 1'' connections and a 200mm probe. It forms part of the cold water inlet controls group of Popular Cylinder spares and is used on unvented hot water cylinders. Its function is to discharge water from the cylinder if the stored temperature or system pressure rises above the valve setting.

Signs this part needs replacing

  • Water passing through the tundish during heating or hot water draw-off
  • Continuous weeping or dripping from the valve outlet
  • The valve fails to reseat after discharging and keeps passing water
  • Scale or debris around the seat causing a visible leak
  • Discharge during normal heating cycles with no over-temperature or over-pressure condition

Before you order

  • Confirm the cylinder requires a 7 bar relief valve
  • Check the connections match 28mm and 1''
  • Check that the 200mm probe length suits the cylinder tapping depth
  • Confirm the valve is being fitted to an Andrews HI Flo Unvented cylinder or the cold water inlet control assembly listed

Not sure which part?

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