Drain Line Flow Control And Fitting Assembly - Ecosoft WS1 DV Programming And Service Manual

WATER SPECIALIST DISC VALVE PROGRAMMING AND SERVICE MANUAL
22

17. DRAIN LINE FLOW CONTROL AND FITTING ASSEMBLY

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