
Clack - DLFC - 3/4" DFLC - Drain Line Flow Control Washer
DLFC Drain Line Flow Control Washer — 3/4" Connection
Precision flow control buttons engineered to regulate backwash drainage rates and optimize media retention during regeneration cycles
Drain Line Flow Control buttons are critical components in water softener and filter valve systems, designed to restrict drainage flow to precise GPM rates. By limiting discharge velocity during backwash and regeneration, DLFC washers ensure proper media bed expansion without fines loss. Available in 13 calibrated flow rates from 0.7 to 10.0 GPM to match your system's specific backwash requirements.
Engineering Purpose and Function
Backwash Rate Control
Restricts drain flow to maintain optimal bed expansion velocity, preventing channeling and ensuring complete media cleaning during regeneration
Media Retention
Prevents loss of filter media or resin fines by keeping discharge velocity below the media's fluidization threshold during backwash cycles
System Matching
13 calibrated orifice sizes allow precise matching to your tank diameter, media type, and service flow rate requirements
Simple Installation
Button installs directly into 3/4" drain line fitting on Clack control valves — no tools required, press-fit design ensures secure placement
Select the Correct GPM Rating for Your System
| Part Number | Flow Rate | Typical Application |
|---|---|---|
| V3162-007 | 0.7 GPM | Small residential softeners, 6" tanks |
| V3162-010 | 1.0 GPM | Compact systems, low service flow |
| V3162-013 | 1.3 GPM | 8" diameter tanks, standard residential |
| V3162-017 | 1.7 GPM | 9" tanks, moderate flow systems |
| V3162-022 | 2.2 GPM | 10" tanks, typical whole-house softeners |
| V3162-027 | 2.7 GPM | 12" tanks, higher service flow |
| V3162-032 | 3.2 GPM | 13" tanks, commercial residential |
| V3162-042 | 4.2 GPM | 14" tanks, light commercial |
| V3162-053 | 5.3 GPM | 16" tanks, commercial softeners |
| V3162-065 | 6.5 GPM | 18" tanks, large commercial |
| V3162-075 | 7.5 GPM | 21" tanks, high-capacity systems |
| V3162-090 | 9.0 GPM | 24" tanks, industrial applications |
| V3162-100 | 10.0 GPM | Large industrial, duplex systems |
System Fitment
These DLFC washers are designed for Clack WS1 control valves with 3/4" drain line connections. Compatible with water softeners, backwashing carbon filters, iron filters, and media-based filtration systems using Clack valve platforms. When replacing an existing flow control button, match the GPM rating to your system's specifications or consult your valve's backwash flow rate requirements based on tank diameter and media type. Proper flow control selection is essential for valve longevity and effective regeneration performance.
Clack control valve components are manufactured to strict tolerances for reliable, long-term performance in residential and commercial water treatment systems.
DLFC Drain Line Flow Control Washer — 3/4" Connection
Precision flow control buttons engineered to regulate backwash drainage rates and optimize media retention during regeneration cycles
Drain Line Flow Control buttons are critical components in water softener and filter valve systems, designed to restrict drainage flow to precise GPM rates. By limiting discharge velocity during backwash and regeneration, DLFC washers ensure proper media bed expansion without fines loss. Available in 13 calibrated flow rates from 0.7 to 10.0 GPM to match your system's specific backwash requirements.
Engineering Purpose and Function
Backwash Rate Control
Restricts drain flow to maintain optimal bed expansion velocity, preventing channeling and ensuring complete media cleaning during regeneration
Media Retention
Prevents loss of filter media or resin fines by keeping discharge velocity below the media's fluidization threshold during backwash cycles
System Matching
13 calibrated orifice sizes allow precise matching to your tank diameter, media type, and service flow rate requirements
Simple Installation
Button installs directly into 3/4" drain line fitting on Clack control valves — no tools required, press-fit design ensures secure placement
Select the Correct GPM Rating for Your System
| Part Number | Flow Rate | Typical Application |
|---|---|---|
| V3162-007 | 0.7 GPM | Small residential softeners, 6" tanks |
| V3162-010 | 1.0 GPM | Compact systems, low service flow |
| V3162-013 | 1.3 GPM | 8" diameter tanks, standard residential |
| V3162-017 | 1.7 GPM | 9" tanks, moderate flow systems |
| V3162-022 | 2.2 GPM | 10" tanks, typical whole-house softeners |
| V3162-027 | 2.7 GPM | 12" tanks, higher service flow |
| V3162-032 | 3.2 GPM | 13" tanks, commercial residential |
| V3162-042 | 4.2 GPM | 14" tanks, light commercial |
| V3162-053 | 5.3 GPM | 16" tanks, commercial softeners |
| V3162-065 | 6.5 GPM | 18" tanks, large commercial |
| V3162-075 | 7.5 GPM | 21" tanks, high-capacity systems |
| V3162-090 | 9.0 GPM | 24" tanks, industrial applications |
| V3162-100 | 10.0 GPM | Large industrial, duplex systems |
System Fitment
These DLFC washers are designed for Clack WS1 control valves with 3/4" drain line connections. Compatible with water softeners, backwashing carbon filters, iron filters, and media-based filtration systems using Clack valve platforms. When replacing an existing flow control button, match the GPM rating to your system's specifications or consult your valve's backwash flow rate requirements based on tank diameter and media type. Proper flow control selection is essential for valve longevity and effective regeneration performance.
Clack control valve components are manufactured to strict tolerances for reliable, long-term performance in residential and commercial water treatment systems.
Description
DLFC Drain Line Flow Control Washer — 3/4" Connection
Precision flow control buttons engineered to regulate backwash drainage rates and optimize media retention during regeneration cycles
Drain Line Flow Control buttons are critical components in water softener and filter valve systems, designed to restrict drainage flow to precise GPM rates. By limiting discharge velocity during backwash and regeneration, DLFC washers ensure proper media bed expansion without fines loss. Available in 13 calibrated flow rates from 0.7 to 10.0 GPM to match your system's specific backwash requirements.
Engineering Purpose and Function
Backwash Rate Control
Restricts drain flow to maintain optimal bed expansion velocity, preventing channeling and ensuring complete media cleaning during regeneration
Media Retention
Prevents loss of filter media or resin fines by keeping discharge velocity below the media's fluidization threshold during backwash cycles
System Matching
13 calibrated orifice sizes allow precise matching to your tank diameter, media type, and service flow rate requirements
Simple Installation
Button installs directly into 3/4" drain line fitting on Clack control valves — no tools required, press-fit design ensures secure placement
Select the Correct GPM Rating for Your System
| Part Number | Flow Rate | Typical Application |
|---|---|---|
| V3162-007 | 0.7 GPM | Small residential softeners, 6" tanks |
| V3162-010 | 1.0 GPM | Compact systems, low service flow |
| V3162-013 | 1.3 GPM | 8" diameter tanks, standard residential |
| V3162-017 | 1.7 GPM | 9" tanks, moderate flow systems |
| V3162-022 | 2.2 GPM | 10" tanks, typical whole-house softeners |
| V3162-027 | 2.7 GPM | 12" tanks, higher service flow |
| V3162-032 | 3.2 GPM | 13" tanks, commercial residential |
| V3162-042 | 4.2 GPM | 14" tanks, light commercial |
| V3162-053 | 5.3 GPM | 16" tanks, commercial softeners |
| V3162-065 | 6.5 GPM | 18" tanks, large commercial |
| V3162-075 | 7.5 GPM | 21" tanks, high-capacity systems |
| V3162-090 | 9.0 GPM | 24" tanks, industrial applications |
| V3162-100 | 10.0 GPM | Large industrial, duplex systems |
System Fitment
These DLFC washers are designed for Clack WS1 control valves with 3/4" drain line connections. Compatible with water softeners, backwashing carbon filters, iron filters, and media-based filtration systems using Clack valve platforms. When replacing an existing flow control button, match the GPM rating to your system's specifications or consult your valve's backwash flow rate requirements based on tank diameter and media type. Proper flow control selection is essential for valve longevity and effective regeneration performance.
Clack control valve components are manufactured to strict tolerances for reliable, long-term performance in residential and commercial water treatment systems.
















