Control Valves
Autotrol Residential Control Valves

255/940M
Max. Flow Rate
(Valve Only)
163/440i 168/440i 168/460i 255/940M 255/940 255/960
Service @ 8 PSI
(0.55 Bar) Drop
12.5 GPM
(47.3 LPM)
12.5 GPM
(47.3 LPM)
12.5 GPM
(47.3 LPM)
11.1 GPM
(42.0 LPM)
11.1 GPM
(42.0 LPM)
11.1 GPM
(42.0 LPM)
Backwash @ 60 PSI
(4.14 Bar) Inlet
6.1 GPM*
(23.1 LPM)
6.1 GPM*
(23.1 LPM)
6.1 GPM*
(23.1 LPM)
5.4 GPM
(20.4 LPM)
5.4 GPM
(20.4 LPM)
5.4 GPM
(20.4 LPM)
*163 & 168 Valves Using Auxiliary Backwash Controls Have a Maximum Backwash Rate of 10.1 GPM (38.2 LPM) at 60 PSI (4.14 Bar).

3/4" Softener Control Valves
Part Number Description Dist.
Size
Regen.
Style
Qty./
Cycle
Carton
Weight
2544-(I)(BW) 255/440i Clock Softener, No Cover 1.050" 6 or 7 Day 8 47#
2594-(I)(BW) 255/940 Clock Softener, with Cover 1.050" 7 or 12 Day 8 62#
2594M-(I)(BW) 255/940 Manual Softener, with Cover 1.050" Manual 8 62#
6844-(I)(BW) 168/440i Clock Softener, No Cover 1.050" 6 or 7 Day 4 26#
2546-(I)(BW) 255/460i Demand Softener, No Cover 1.050" Demand 8 49#
2596-(I)(BW) 255/960 Demand Softener, with Cover 1.050" Demand 8 63#
2596B-(I)(BW) 255/960 Dem. Soft., with Battery Back-Up 1.050" Demand 8 63#
6846-(I)(BW) 168/460i Demand Softener, No Cover 1.050" Demand 4 34#
Plumbing connections are not supplied with any control valves.

3/4" Filter Control Valves
Part Number Description Dist.
Size
Regen.
Style
Qty./
Cycle
Carton
Weight
2394M-(BW) 255/940 Manual Softener, with Cover 1.050" Manual 8 62#
6344-(BW) 163/440i Clock Filter, No Cover 1.050" 6 or 7 Day 4 26#

Options (Must choose from the following when ordering control valves)
Option Code
(x)
Description
(I)=A,B, or C Injector Nozzle: (A: 6"-7" Tanks), (B: 8"-10" Tanks), (C: 12"-14" Tanks)
(BW)=00 No Backwash Flow Control - "OPEN"
(BW)=PL No Backwash Flow Control - "Plugged"
(BW)=06, 07, 08, 09, 10, 12, or 14 Back Wash Flow Control: (06 - 0.9 GPM: 6" Tank), (07 - 1.2 GPM: 7" Tank), (08 - 1.6 GPM: 8" Tank), (09 - 2.0 GPM: 9" Tank), (10 - 2.5 GPM: 10" Tank), (12 - 3.5 GPM: 12" Tank), (13 - 4.1 GPM: 13" Tank), (14 - 4.8 GPM: 14" Tank) - Tank Sizes are for typical softener applications.
(BW)=A0 Auxillary Backwash Flow Control: No Flow Disc - "OPEN" - For 163/168 Valves Only.
(BW)=A1, A2, A3, A4, A5, or A6 Auxillary Backwash Flow Control: (A1 - 5 GPM), (A2 - 6 GPM), (A3 - 7 GPM), (A4 - 8 GPM),(A5 - 9 GPM), (A6 - 10 GPM) - For 163/168 Valves Only.

Covers
Part Number Description
UA-1000062 "i-Lid" Cover for All 400 Series Timers
Other special covers are available upon request. Orders in quantities of 8 pcs. only. Contact your SWT representative for details.

Manual Bypass (Optional)
Part Number Description
UA/BV256 Manual Bypass Valve for All 255 Valves
UA/BV165 Manual Bypass Valve for All 163 & 168 Valves

Adapter Kits (Required for 163 & 168 Valves. Also Required for 255 Valves Using Manual Bypass Valves)
Part Number Description
UA-1001606 3/4" Copper Tube Adapter Kit
UA-1001613 3/4" PVC Tube Adapter Kit
UA-1001769 3/4" NPT ABS Plastic Pipe Adapter Kit
UA-1001604 3/4" BSPT ABS Plastic Pipe Adapter Kit
UA-1001611 3/4" BSPT Brass Adapter Kit
UA-1001670 1" Copper Tube Adapter Kit
UA-1001614 1" PVC Tube Adapter Kit
UA-1001603 1" NPT ABS Plastic Pipe Adapter Kit
UA-1001610 1" NPT Brass Pipe Adapter Kit
UA-1001605 1" BSPT ABS Plastic Pipe Adapter Kit
UA-1001612 1" BSPT Brass Pipe Adapter Kit
UA-1001608 22mm Copper Tube Adapter Kit
UA-1001615 25mm PVC Tube Adapter Kit
UA-1001609 28mm Copper Tube Adapter Kit
UA-1040547 90º Elbow Adapter Kit for All Above Adapter Kits
Manual bypass valves must be purchaced to use adapter kits with all 255 valves.

Manifold Kits Used wit 255 Valves Only. Not to be used with Manifold Bypass Valves or Adapter Kits.
Part Number Description
UA-1040279 3/4" NPT Noryl Manifold Kit
UA-1040277 3/4" NPT Brass Manifold Kit
UA-1040281 3/4" BSPT Brass Manifold Kit
UA-1040280 1" NPT Noryl Manifold Kit
UA-1040278 1" NPT Brass Manifold Kit
UA-1040282 1" BSPT Brass Manifold Kit


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