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MODEL Q-5

5 to 85,000+ GPM, for pipes 1” – 48”+

Detects and Signals Flow Change

  • Superior Long Term Performance
  • Line Pressure to 300 PSIG
  • Continuous Adjustment While Operating
  • Temperature 180°F Continuous
  • Multiple quick change targets plus continuous spring adjustment provide very wide operating range
  • For use in highly particle contaminated fluids
  • SPDT 15 amp switching capacity model or Dry Circuit Computer/PLC Interface model
  • Intrinsically Safe Relay Allows Model Q-5 to be used in Hazardous Areas.
  • Maintains Calibration Limits When Subjected to Reasonable Line Hydraulic Hammer or Surge Pulses
  • Calibrated Independent of Line Pressure and Temperature

Typical Working Fluids

  • Alcohols
  • Glycols
  • Pure Water
  • Sewage Water
  • Slurries
  • Soap Solutions
  • Tap Water

Typical Uses

Water Treatment

  • Contaminated Groundwater
  • Irrigation Systems
  • Municipal Water Supply Systems
  • Sewage Treatment Plants

In Chemical Processing

  • Fluid Blending Systems
  • Heat Transfer Fluids
  • Liquid Scrubbers
  • Liquid Transfer
  • Monitor Filter Clogging
  • Water Treatment

To Monitor Flow of Coolant Supplied to:

  • Air Condition Systems
  • Brakes & Clutches
  • Computer Systems
  • Diodes, SCR’s, Triacs, etc.
  • Electro Magnets
  • High Power Transistors
  • Plastic Molding Equipment
  • RF and Radar Transmitter
  • Spot welders
  • Transformers
  • Vacuum Diffusion Pumps

Plus:

  • Fire Sprinkler Flow Alarms
  • Oil Supplied to Large Bearing & Gear Systems
  • Steam Boiler Feed Water

Target (Drag Disk/Strip) Number

Specifications

Model Selection Chart

Pipe Size NPT Flow Limits Between Which Switch Point May Be Set GPM Part Number
Model Pivot Shaft # Target # Electric Cable 1 or 2
1 5—15 Q-5 2 2
12—36 Q-5 2 1
1.5 7—21 Q-5 3 3
10—30 Q-5 3 2
20—75 Q-5 3 1
2 14—42 Q-5 3 4
20—60 Q-5 3 2
50—150 Q-5 3 1
2.5 21—63 Q-5 3 4
30—90 Q-5 3 2
70—210 Q-5 3 1
3 27—81 Q-5 5 4
45—135 Q-5 5 2
110—330 Q-5 5 1
3.5 36—108 Q-5 5 4
60—180 Q-5 5 2
150—450 Q-5 5 1
4 45—135 Q-5 5 4
75—225 Q-5 5 2
200—600 Q-5 5 1
5 51—153 Q-5 5 5
120—360 Q-5 5 2
300—900 Q-5 5 1
6 65—195 Q-5 5 6
80—240 Q-5 5 5
190—570 Q-5 5 2
450—1,350 Q-5 5 1
8 103—309 Q-5 5 6
126—378 Q-5 5 5
300—900 Q-5 5 2
800—2,400 Q-5 5 1
10 172—516 Q-5 5 6
211—633 Q-5 5 5
500—1,500 Q-5 5 2
1,200—3,600 Q-5 5 1

Large Pipe Size Information Available By Request.

Hysteresis (% Flow Change to Activate / Deactivate Switch)

  • ˜ 10% at upper end of flow range
  • ˜ 30% at lower end of flow range

Differential Pressure Drops Across Unit (Normal Operating Conditions)

1″ – 3″ Pipe, less than 1 psi

4″ – 48″ Pipe, Negligible

Working Line Pressure

300 psig max. @ 180°F Max

(Proof tested to 1200 psig @ room temperature)

Materials

Brass body, Noryl cover, 316 stainless steel hardware.

Working fluid “sees” Red Brass, 316 stainless steel, phosphor bronze, and EPDM elastomer seal (Hypalon and Viton elastomer seals are available on special order).

Electrical Switch Characteristics

  • SPDT
  • 15 amp, 1/2 hp @ 125 or 250 VAC
  • 1/2 amp @ 125 VDC, 1/4 amp @ 250 VDC
  • 5 amp @ 125 VAC (tungsten lamp load)
  • UL and CSA Listed
  • 10,000,000 Operations Median

Model Q-5 can also be fitted with a SPDT Gold Cross Bar Switch for computer/PLC interface.

Weight: 3.5 lb.

Installation Dimensions

Input Power Cable Interface Options

  • Installation drawing and a numbered parts list is supplied with each unit.
  • Special One Day Delivery Available.