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Flow Switch Model Q-5SS Stainless Steel

Uses

Monitoring flow of coolants and fluids supplied to:

  • Air Conditioning Systems
  • Plastic Molding Equipment
  • Boilers
  • Scrubbers
  • Cooling in Data Centers
  • Spot Welders
  • Diodes, SCRs, Triacs, etc.
  • Transformers
  • Fluid Blending Systems
  • Vacuum Systems
  • High Power Transistors

Other Uses:

  • Fire Sprinkler Flow Alarms
  • Municipal Water Supply Systems
  • Oil Supply to Bearing & Gear Systems

Models

Q-5N: WETTED MATERIALS:
Body and Lid: Brass
Hardware: Noryl® (PPO) (10% glass fibers), 316 stainless steel
Working fluid “sees” red brass, phosphor bronze and EPDM elastomer seal
Gasket: Cork/Nitrile blend Optional Seal: Hypalon, Viton® or FKM
Q-5SS: WETTED MATERIALS:
Body and Lid: 316 Stainless steel. Hardware: Noryl® (PPO) (10% glass fibers), 316 stainless steel
Working fluid “sees” 316 stainless, Teflon® or PTFE gasket and Viton® or FKM elastomer seal.

 

PIPE SIZE CONTINUOUS SWITCH POINT ADJUSTMENT RANGE (GPM) PIVOT SHAFT # PADDLE #
Red Brass 316 Stainless Steel
1″ 5 to 15 10 to 20 2 2
12 to 36 20 to 60 2 1
1 1/2″ 7 to 21 14 to 42 3 3
10 to 30 20 to 60 3 2
20 to 75 30 to 90 3 1
2″ 14 to 42 21 to 63 3 4
20 to 60 30 to 90 3 2
50 to 150 60 to 180 3 1
3″ 27 to 81 45 to 135 5 4
45 to 135 75 to 225 5 2
110 to 330 130 to 390 5 1
6″ 65 to 195 103 to 309 5 6
80 to 240 125 to 375 5 5
190 to 570 300 to 900 5 2
450 to 1,350 550 to 1,650 5 1

Specs

HYSTERESIS (Δ FLOW RATE TO ACTIVATE/DEACTIVATE SWITCH)
≈ 5% at upper end of flow range
≈ 25% at lower end of flow range

DIFFERENTIAL PRESSURE DROPS ACROSS UNIT
Under normal operating conditions:
≈ 1.0 psig at upper end of flow range
≈ 5.0 psig at lower end of flow range

WORKING LINE PRESSURE
300 psig max. @ 180˚F max (Proof tested to 1,200 psi @ 70˚F)

WORKING TEMPERATURE
180˚F max. (May be extended to 200˚F for short periods.)

WETTED MATERIALS
Body: Red brass Hardware: Noryl® (PPO) (10% glass fibers), 316 stainless steel, Plastic Working fluid “sees” red brass, 316 stainless steel, phosphor bronze, and EPDM Elastomer Seal Gasket: Cork/Nitrile blend Optional Seal: Hypalon, Viton® or FKM

ELECTRICAL SWITCH CHARACTERISTICS
SPDT (single pole double throw) 15A, 1/2 hp @ 125 or 250VAC .A @ 125VDC, .A @ 250VDC 5A @ 125VAC (tungsten lamp load) 10,000,000 Operations Median Switch may be overloaded to 20A @ 125 or 250VAC for a minimum of 20,000 operations. Model Q-5 and Q-5SS can also be fitted with a SPDT Gold Cross Bar Switch for computer/PLC interface.

Diagram

diagram_q-5