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DLFC Drain Line Controllers for Filter Valves with NO TOP SCREEN

DLFC Drain Line Controllers for Filter Valves with NO TOP SCREEN

10445000185

£21.00 inc. VAT
£17.50 ex. VAT
£21.00 inc. VAT
£17.50 ex. VAT
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Shipping is calculated at checkout
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Product Description

This drain line flow controller (DLFC) is the complete backwash flow control assembly for filter valves built without a top screen design, covering carbon and multimedia filter control valves that rely on this housing to regulate drain flow during regeneration. WrekinWater stocks this DLFC assembly as a direct replacement for worn, cracked or missing controllers on compatible filter valves.

Technical specifications

Part Number 10445000185
Part Type DLFC housing and disc assembly
Compatible With Filter valves with no top screen design
Material Engineered plastic
Function Regulates backwash drain flow rate during regeneration
Fitting Location Drain line elbow on the filter control valve

Symptoms that mean you need this part

  • The drain line flow controller housing is cracked, split or leaking
  • Backwash drain flow during regeneration is clearly too fast or too slow
  • Filter media appears in the drain water after a regeneration cycle
  • Filtered water quality worsens after regeneration, suggesting a poor backwash

Why it fails / why it matters

On filter valves without a top screen, the DLFC assembly does the job of controlling how quickly water leaves the media tank during backwash, protecting the media bed from being disturbed too aggressively while still lifting and cleaning it properly. Years of exposure to grit, iron and mains pressure cycling can crack the housing or wear the internal disc, throwing off the backwash flow rate and reducing filter performance.

Why buy this from WrekinWater

WrekinWater has served more than 50,000 customers over 15 years from Bettisfield, Shropshire, and stocks a wide range of filter valve spares alongside major brands including Pentair Fleck, Autotrol, Clack and Kinetico. As a UK company (Company No. 11000488) rated Excellent on Trustpilot, we help customers identify the correct DLFC assembly for their specific valve type, including no-top-screen designs.

How to fit it

  1. Shut off the water supply and place the filter valve in bypass
  2. Locate the DLFC fitting on the drain line elbow at the base of the valve
  3. Unscrew the old DLFC housing from the drain line fitting
  4. Check the seating O-ring and clean any debris from the fitting
  5. Fit the new DLFC assembly, selecting the correct flow rating for your media type and vessel size
  6. Restore the water supply and run a manual regeneration to confirm correct backwash flow

Frequently asked questions

No-top-screen valves rely on the DLFC assembly rather than an internal screen to control backwash flow — check your valve's original spec sheet or compare against your existing controller before ordering.

Yes, this is a complete assembly including the housing and internal flow control disc, ready to fit as a direct replacement.

You only need to place the valve in bypass and relieve pressure at the drain line fitting — there's no need to fully drain the media tank to change the DLFC assembly.
DLFC Drain Line Controllers for Filter Valves with NO TOP SCREEN

DLFC Drain Line Controllers for Filter Valves with NO TOP SCREEN

£21.00 inc. VAT
£17.50 ex. VAT
£21.00 inc. VAT
£17.50 ex. VAT