CASTLE WFS-25-S, WFS Series Operating Instructions Manual

WFS SERIES

FLOW CONTROLLERS

C:RSTLE@

Pipe Size"

Minimum
Adjustment
(Factory Set)

Flow
Increase

Mm 20 25 32 38 51 63 76 102 127

Inches 3/4 1 1-1/4 1-1/2 2 2-1/2

USGPM

LPM 21 23 37 48 71

m3/h

USGPM

I

Flow
Decrease

Flow
Increase

Minimum
Adjustment

Flow
Decrease

*

Use or trim standard paddle size.

LPM 10

m3/h 0.66

USGPM

LPM 33

m3/h 2.12

USGPM

LPM

m3/h 1.82

5.50 6.00 9.80 12.70 18.80 24.30

92 113 150 222

1.11

1.36 2.22 2.89 4.27 5.51 6.82

2.90 3.60 5.60 7.00

13.62 21 26

0.82 1.27 1.59 2.13 2.63 2.72

8.80 10.20 16.80

38 63

2.32 3.80 5.22

8.50 9.20

32

15.00 19.50 24.00 37.50 46.10 64.20 92.00 123.00

35 56

2.09 3.41

23.00

87 124

74 91 142 174 243 348 465

4.43 5.45

9.40

35

32.80

7.45

11.60 12.00 19.80 29.30

44 45 75 110

42.40

160

9.63 11.83

8.51

Flow Rates, m3th, US GPM&LPM

Operating Instructions

3

30.00 39.70

52.10 73.50 115.00 166.00

197

10.47

4

9.02 13.33 17.99

4.49

278 435 628

16:69

14.58 20.89 27.94

5.-

.58.70 79.20

6.65 8.99

26.12

152

6

300

39.60

150

37.70

.I

Setting Adjustment.

1. Remove flow controller cover.

2. For higher flow rate, turn range adjusting
screw clockwise.

3. For lower flow rate, turn range adjusting
screw counter-clockwise.

4. Be sure that flow controller cover is
replaced before leaving jobsite.

79

50

FI.OW

---'"-

FLOW OECREASE

NO NC

\0

COM

Wiring Diagram

FLOW SWITCH

DIMENSION "AMMUST BE AT LEAST 5 PIPE
DIAMETERS FROM NEAREST ELBOW,
VALVE OR OTHER PIPE RESTRICTION

FLOW

RANGE
ADJUSTING
SCREW

FLOW INCREASE

~!

COM

RANGE
ADJUSTING
SCREW

- FLOW

P5

Dimensions in mm

Typical Installation

C:r-ISTLE@

GENERAL PURPOSE FLOW CONTROLLERS

General,

The paddle type WFS series flow controllers are

specifically designed for use on liquid lines such
as water, ethylene glycol or any other fluid

which is not harmful to brass or phosper bronze

and which is not classified as a hazardous fluid.

When a WFS series flow controller is used as an
operating control device and where an operating
control device failure would result in personal

injury and/or loss of property, it is the
responsibility of the user to add safety devices

that protect against control device failure.

Mounting.
The flow controller can be mounted in a
horizontal or vertical pipeline but must be
located in a section of pipe where there is a
straight run of atleast 5 pipe diameters on each
side of the switch.

WFS SERIES-

FLOW CONTROLLERS

Cover

~~~~~~ Micro81W

Adjusting Screw

IU

J'~~~~f

Ik

Seesaw Plate,
Bellows

Balance Spring
1" Connection

SPECIFICATIONS

Model Number WFS-25-S
Pipe Connection 1" male NPT
Materials Brass

Maximum Operating Pressure
Liquid Temperature

Setpoint Adjustment

Ambient Temperature Limits

Flow rates
Bellow life
Switch Action
Electrical Ratings

Wire Connections

Paddles
Enclosure Protection Class
Conduit Opening
Dimensions
Shipping Weight

I

Stainless Steel 304

Phosphor Bronze
Mild Steel
Palstic
10 bar ( 140 Psi)

1 to 100° C
Screw under cover.

o

to 60°C

See chart overleaf. Flow Rates m3/h, US GPM&LPM

5.00,000 cycles
SPOT, Snap-acting.
Upto 250VAC, 15(7.5) A, 50/60 Hz
Screw-down Terminals
Supplied in 5-piece package in sizes of 1",2",3",5" and 6"
I.P 55

22 mm diameter hole for%"Conduit.
See overleaf. Dimension in mm. '

O.6/kgs

The specifications above are normal and confirm to generally acceptable industry standards.
Castle is not responsible for damages resulting from misapplication or misuse of it's products.