Flow Switch Model Q-5SS Stainless Steel | Fluid Flow and Liquid Level Switches

Flow Switch – Model Q-5SS Stainless Steel

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

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 #
PIPE SIZE	Red Brass	316 Stainless Steel	PIVOT SHAFT #	PADDLE #
1″	5 to 15	10 to 20	2	2
1″	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

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.