Water Specialist WS1TT, Drawings And Service Manual

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WS1TT Drawings and Service Manual Page 23
Drain Line Flow Control and Fitting Assembly
The drain line fl ow control assembly includes a drain line fl ow control and a fi tting. The drain line fl ow control allows proper media
bed expansion by regulating the fl ow rate to the drain. The drain line fl ow control is a fl exible washer-like part with an ori fi ce and
a precision molded contour. The fl ow rates are within
±
10% over the pressure range of 20 psi to 125 psi (1.4 bar to 8.6 bar). See
table for fl ow rate information.
The drain line fl ow control and fi tting are located on top of the control valve and replaceable without the use of special tools.
The drain line fl ow control can be installed in the standard ¾ ” drain line elbow, which accommodates 5/8 ” polytube or ¾ ” NPT drain
line connections. The optional nut and polytube insert for the ¾” drain line elbow is designed for use with fl exible polytube only.
The ¾ ” drain line elbow can be rotated 180 degrees so the outlet can be orientated to the nearest drain. The same retainer is used for
all drain line fl ow controls for the ¾ ” fi tting. Drain line fl ow controls designed for the 3/4” fi tting are available for fl ow rates ranging
from 0.7 to 10 gpm (2.6 to 37.9 lpm).
An optional 1 ” straight drain line fi tting is available to accommodate drain line fl ow rates ranging from 9 to 25 gpm (34.1 to 94.6
lpm). This fi tting is straight but still connects to the control valve using the same locking clip. The drain line fl ow control is located
between two fi tted parts (i.e. the fi tting acts as the retainer). The nut is unscrewed to access the drain line fl ow control.
Drain Line Flow Control and Fitting Assembly Information
Drain Line
Fitting
Drain Line Flow
Control Order No.
Number on Drain
Line Flow Control
Backwash Flow Rate
(gpm)
Backwash Flow Rate
(lpm)
¾” V3162-007 007 0.7 2.6
¾” V3162-010 010 1.0 3.8
¾” V3162-013 013 1.3 4.9
¾” V3162-017 017 1.7 6.4
¾” V3162-022 022 2.2 8.3
¾” V3162-027 027 2.7 10.2
¾” V3162-032 032 3.2 12.1
¾” V3162-042 042 4.2 15.9
¾” V3162-053 053 5.3 20.1
¾” V3162-065 065 6.5 24.6
¾” V3162-075 075 7.5 28.4
¾” V3162-090 090 9.0 34.1
¾” V3162-100 100 10.0 37.9
1” V3190-090 090 9.0 34.1
1” V3190-100 100 10.0 37.9
1” V3190-110 110 11 41.6
1” V3190-130 130 13 49.2
1” V3190-150 150 15 56.8
1” V3190-170 170 17 64.3
1” V3190-200 200 20 75.7
1” V3190-250 250 25 94.6