Description
Series FS5
General Purpose Liquid Flow Switches
• For general purpose applications requiring low flow rate
sensitivity
• In-line configuration eliminates need for a pipe tee
• Sizes available
–
3⁄4” NPT
– 1″ NPT
• Materials of construction
– Brass, carbon & EPDM elastomer (for water);
Models FS5 & FS5-D
– Stainless steel, carbon & Buna N (for water or
water and petroleum base compounds)
Models FS5-S & FS5-DS
• Single pole, double throw snap switch
• Sensitivity adjusting screw makes flow adjustment easy
• Optional feature
– BSPT threads
• Minimum temperature (fluid or ambient) 32°F (0°C)
• Maximum temperature
225°F (107°C) – Stainless Steel models
250°F (121°C) – Brass
• Maximum operating pressure 150 psi (10.5 kg/cm2)
Dimensions, in. (mm)
| A | B | C | D |
| 37⁄16 (87) | 19⁄16 (40) | 15⁄16 (33) | 33⁄16 (56) |
| E | F | G | H |
| 51⁄16 (129) | 31⁄4 (83) | 7⁄8 (22) | 119⁄32 (40.5) |
| J | K | L | M |
| 33⁄16 (81) | 7⁄8 (22) | 13⁄8 (35) | 111⁄16 (43) |
Flow Rates
| Pipe Size NPT in. |
Mode of Operation | Settings | ||
| Flow gpm (lpm) |
No Flow gpm (lpm) |
|||
| 3⁄4 or 1 |
Factory or Minimum |
1.5 (5.7) | 1.1 (4.2) | 16.62 (62.9) |
| Maximum | 15 (56.8) | 10 (37.9) | 27 (102.2) |
Values are ± 10%
Ordering Information
| Model Part Weight Number Number Description lbs. (kg) |
| FS5-3⁄4 114760 General purpose flow switch 2.5 (1.1) 3⁄4” NPT FS5-D-3⁄4 114763 FS5-3⁄4 w/2 SPDT switches 2.5 (1.1) FS5-J-3⁄FS5-3⁄4 w/BSPT connections 2.5 (1.1) General purpose flow switch 2.5 (1.1) 1″ NPT FS5-1 w/2 SPDT switches 2.5 (1.1) FS5-1 w/BSPT connections 2.5 (1.1) FS5-1 w/SS body 2.3 (1.0) FS5-DS-1 114793 FS5-1 w/SS body, 2 SPDT switches 2.5 (1.1) FS5-J-3⁄4-E 114766 FS5-J-3⁄4 – CE conformance rated 2.5 (1.1) FS5-J-1-E 114787 FS5-J-1 – CE conformance rated 2.5 (1.1) |
Electrical Ratings
| Motor Switch Rating (Amperes) | Voltage | Pilot Duty | |
| Full Load | Locked Rotor | ||
| 120 VAC | 7.4 | 44.4 | 125 VA at 120 or 240 VAC 50 or 60 cycles |
| 240 VAC | 3.7 | 22.2 |
NOTE: DO NOT USE LIQUID FLOW SWITCHES ON
SYSTEMS WITH FLOW GREATER THAN
10 FEET (3M) PER SECOND.
