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Altecnic 28mm CxC Single Check Valve DZR BI-100S28

Altecnic

Altecnic 28mm CxC Single Check Valve DZR BI-100S28

Altecnic 28mm CxC single check valve in DZR brass for preventing backflow in heating and plumbing circuits.

Manufacturer part no.
BI-100S28
Showing prices

£29.56

£24.63 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 Altecnic 28mm CxC Single Check Valve DZR is a single check valve from Altecnic, manufactured in dezincification resistant (DZR) brass. It is a compression-ended component that permits flow in one direction only, preventing backflow within pipework and heating circuits.

Signs this part needs replacing

  • Water or system fluid passing in the wrong direction through the valve
  • Persistent noise or vibration from the valve when the pump runs
  • Visible leakage or weeping at either compression connection
  • Loss of system pressure or repeated air ingress linked to backflow
  • Corrosion or scale build-up on the valve body or nuts

Before you order

  • Confirm the pipework is 28mm and that compression connections suit the installation
  • Check the valve orientation and flow direction arrow on the body before fitting
  • Verify the existing valve is a single check type, not a double check or isolation valve
  • Confirm the available space allows the nuts to be tightened onto the pipe ends

Not sure which part?

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