This valve is typically used in air handling units on heating or cooling coils, and fan coil unit heating or cooling coils. Some other common applications include Unit Ventilators and VAV Box re-heat coils. This valve is suitable for use in a hydronic system with variable flow. This valve is designed for floating point control using 24VAC/DC where fail safe is required.

Valve Specifications
Service	chilled or hot water, 60% glycol
Flow characteristic	A port equal percentage
Action	Max 95 rotation
Sizes	1/2" to 3/4"
Type of end fitting	female, NPT
Materials:
Body	forged brass, nickel plated
Ball	chrome plated brass
Stem	brass
Seats	PTFE
Characterizing disc	TEFZEL®
Packing	2 EPDM O-rings, lubricated
Pressure rating	600 psi
Ambient temp. range	-22 F to 122 F [-30 C to 50 C]
Media temp. range	0 F to 212 F [-18 C to 100 C]
Close off pressure	200 psi
Maximum differential:	For Characterized A-port
pressure (∆P)	20 psi for typical applications
	30 psi max for quiet service
	For full flow versions only (no A-disc) On/Off control 150 psi
Leakage	0%
Cv rating	A port: see product chart for values

Actuator Specifications
❏	TF24-3 US
❏	TF24-3-S US
Control		Floating
Power supply		24VAC +- 20%, 50/60Hz
Power consumption:		running: 2.5 W
		holding: 1.0 W
Transformer sizing		4 VA (class 2 power source)
Electrical connection		TF24-3 US 3 ft, 18 GA plenum rated cable
		TF24-3-S US 3 ft, 18 GA appl. cables (2)
		(6 ft, 10 ft cables optional)
		1/2" conduit connector
Overload protection		electronic throughout 0 to 95 rotation
Input impedance		1000 (0.6w) control inputs
Angle of rotation		90 , adjust. with mechanical stop
Direction of rotation		spring: reversible with cw/ccw mounting
		motor: reversible with built-in switch
Position indication		visual indicator, 0 to 95
		(0 spring return position)
Auxiliary switch		1 x SPDT 3A (0.5A) @ 250 VAC,
(-S models)		UL listed adjustable 0 to 95
Running time		motor: 1s / for 90
		independent of load
		spring:< 25 sec @-4 F to +122 F [-20 C to +50 C]
		< 60 sec @-22 F [-30 C]
Humidity		5 to 95% RH non-condensing
Ambient temperature		-22 F to +122 F [-30 C to +50 C]
Storage temperature		-40 F to +176 F [-40 C to +80 C]
Housing		NEMA type 2 / IP42
Housing material		UL94 -5VA
Agency listings		cULus listed acc. to UL 60730-1/-2-14
		and CAN/CSA C22.2 No.24, CE
		according to 73 / 23 / EEC
Noise level		max:	running < 35 db (A)
			spring return 62 dB (A)
Quality standard		ISO 9001