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Mc Donnel & Miller Flow Switches

General Purpose Liquid Flow Switch

 

  • Universal design serves the widest variety of applications
  • For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others.
  • Replacement for common flow switches from Johnson/Penn, Potter/Taco, Watts, Hydrolevel and other manufacturers.
  • 1" NPT
  • Two electrical knock-outs allow connection from either end.
  • Sensitivity adjusting screw makes from adjustment easy.
  • Singel pole, double throw snap switch/
  • Hardended stainless steel bearings minimize friction.
  • Sealed Monel bellows.
  • Four stainless steel paddles included: 1", 2", 3" & 6" (25, 50, 80, & 150mm)
  • Optional Features
    • Time delary (5 or 20 seconds)
    • Two SPDT switches to make or break two seperate circuits
    • Reinforced paddles
    • Materials of construction suitable for corrosive liquids
    • Fire sprinkler service - Model FS4-3F only
    • BSPT threads
  • Minimum temperature (fluid or ambient) 32°F (0°C)
  • Maximum temperature 300°F (149°C)
  • Maximum pressure 160 psi (11.3 kg/cm2)
MODE OF OPERATIONS
PIPE SIZE NPT IN. SETTINGS FLOW NO FLOW MAX.FLOW RATE GPM (LPM) W/O PADDLE DAMAGE
1 Factory or Min 6 (22.7) 3.6 (13.6) 27 (102.2)
Maximum 10.2 (38.6) 9.2 (34.8)
11/4 Factory or Min 9.8 (37.1) 5.6 (21.2) 47 (177.9)
Maximum 16.8 (63.6) 15 (56.8)
11/2 Factory or Min 12.7 (48.1) 7 (26.5) 63 (238.5)
Maximum 23 (87.1) 19.5 (73.8)
2 Factory or Min 18.8 (71.2) 9.4 (35.6) 105 (397.4)
Maximum 32.8 (124.1) 24 (90.8)
21/2 Factory or Min 24.3 (92) 11.6 (43.9) 149 (564)
Maximum 42.4 (160.5) 37.5 (141.9)
3 Factory or Min 30 (113.6) 12 (45.4) 230 (870.6)
Maximum 52.1 (197.2) 46.1 (174.5)
4 Factory or Min 39.7 (150.3) 19.8 (74.9) 397 (1502.7)
Maximum 73.5 (278.2) 64.2 (242)
5 Factory or Min 58.7 (222.2) 29.3 (110.9) 654 (2415.4)
Maximum 115 (435.5) 92 (348.2)
6 Factory or Min 79.2 (300) 39.6 (150) 900 (3406.5)
Maximum 166 (628.3) 123 (465.6)
 

1 Product

1" BSP Male Mcdonnell & Miller Flow Switch

Excl. VAT: £146.49

Incl. VAT: £175.79

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