Switzer Instrument Limited
 
 
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FLOW INSTRUMENTS

Switzer flow switches / indicators are versatile instruments designed suitable for different pipe sizes with sensors such as Paddle, Piston, Valve disc to handle any fluid. Delta tube, multi port averaging Pitot Tube flow element, is an excellent device which provides stable differential pressure output. Delta Tube has low installation and operating costs which is a major factor in large diameter piping and results in energy savings and years of trouble-free operation
 

Flow Switches

Paddle Type PADDLE TYPE
  • Models AM / BM / CM
  • SS Paddle with Bellows Seal
  • Body & Bellows Brass + Ph.Bronze or SS
  • Line Size 5 to 300 mm NB
  • Actuation Limits 3 to 3600 L / Min
  • Switching Accuracy 2%
  • Snap acting micro switch - One or Two
  • Weatherproof Engineering Plastic / Aluminium or Flame proof Aluminium enclosures
  • Model AM is for Air flow in ducts only - Actuation can be set between 2 to 9 Mtrs. / sec

Brochures
Manuals
AM , BM
CM
  • Models HM
  • All plastic (GF Nylon) wetted parts
  • For aggressive liquids and chemical solutions
  • Line size 25 150 mm NB
  • Magnetic actuation no O ring Seals or Bellows
  • Manual override with lock
  • Actuation limits 4 to 75 l / min
  • Switching accuracy 3% FSR
  • One snap acting micro switch

 

Brochures

 

Piston & Magnet Mini Paddle Type
  • Models HR
  • SS Piston with Barium Ferrite Magnet
  • Body SS or Brass
  • Line Size 8 to 80 mm
  • Actuation Limits 0.5 to 500 L / Min.
  • Max. Working Pr. 100 bar
  • Snap acting Micro switch or Reed switch
  • Switching Accuracy 2%
  • Engineering Plastic IP : 55 enclosure
  • Application Liquids only (viscosity up to 220 cst)
Brochures
Manuals
  • Model PM
  • SS Paddle
  • Body Brass or SS
  • Line Size 10 to 50 mm
  • Actuation Limits 2 to 53 L / Min.(Narrow Adjustability)
  • Max. Working Pr. 16 bar
  • Snap acting micro switch
  • Engineering Plastic IP : 55 enclosur
  • Application - Liquids only

Brochures

 

Piston Type
  • Models FM
  • Brass Piston and Body/li>
  • Line Size 8 to 15 mm
  • Actuation Limits 0.4 to 23 L / Min (factory set – Not field adjustable)
  • Max. Working Pr. 15 bar std. 100 bar optional
  • Switching Accuracy 2%
  • Snap acting micro switch
  • Engineering Plastic IP : 55 enclosure
  • Application Liquids only
Brochures
 
 

FLOW INDICATOR

Flow Indicator
  • Model UZ
  • Body 394 / 316 SS
  • Line Size 15 to 50 mm NB
  • Actuation Limits 60 to 600 L / Min.
  • Max. Working Pr. 16 bar
  • Snap acting micro switch with LED Indication
  • Switching Accuracy 3%
  • Dial 150 mm Nominal, Scale 270°
  • Gauge Case IP : 66 Aluminium
  • Application water only
Brochures
Manuals

 

   


ELEMENTS

DELTA TUBE - MULTI PORT AVERAGING PITOT TUBE
  • Models 300, 301, 302, 306, 307/308
  • Models 311/312, 321, 322, 331, 332, 323
  • Models 341 thru 391, 342 thru 392, 343 thru 393
  • “Tear-Drop” Shaped Flow Elements
  • In line, Insertion and Hot Tap versions
  • Line sizes from 1/2” to 72” standard. Larger sizes optional
  • Safety chain option
  • Connections Both 1/4" FNPT (Standard) and 1/2" FNPT
  • Accuracy up to +/- 1.0% of Actual Flow,
  • Repeat Accuracy +/- 0.1%. )
  • Low pressure loss
  • Measurement of Liquids, Gases, or Steam.
  • Designed for Use with Differential Pressure Gauges, Transmitters, Totalizers, and Chart Recorders.
  • Easy, Cost-efficient Installation and Operation.
  • Custom Application Design and Manufacture Available
  • Instrument Valves (Needle) Available in Carbon Steel or Stainless Steel
  • Direct Transmitter Mounts Available on “Insertion-Type Sensors”
  • OS&Y Gate Valves can be substituted for Ball Valves on Hot Tap


Brochures
300
301/ 302
307/308
311-Duct
311-Pipe
323
341