Honeywell MS4103 manual Control Valve Selection Criteria

								Control Valve Selection Criteria
										3-Way
				Control Ball			Butterfly
				Threaded	Flanged	Resilient Seat
Attribute	Specification			VBN3	VBF3	VFF3			VFF6
	1/2"		[DN15]	•
	3/4"		[DN20]	•
		1"	[DN25]	•
	1 1/4"		[DN32]	•
	1 1/2"		[DN40]	•
Pipe Size		2"	[DN50]	•		•			•
	2 1/2"		[DN65]	•		•			•
		3"	[DN80]			•			•
		4"	[DN100]		•	•			•
		5"	[DN125]		•	•			•
		6"	[DN150]		•	•			•
	Other		(maximum size)				20" [DN500]
		Sweat
Pipe Fittings	NPT Internal Thread			•
	Inverted Flare
	ANSI Flange				•	•			•
	ANSI 125/150				•
Static Pressure	ANSI 250/300
			Other	360 psi				250 psi
Media	Chilled Water			•	•	•			•
		Hot Water		•	•	•			•
Flow Capacity, Cv	Multiple ratings per pipe size			•	•
	One rating/size above 1/2"					•			•
	Mixing		A-B-AB porting	•	•	•
Valve Action	Mixing		A-AB-B porting						•
	Diverting		AB-B-A porting	•	o	•
	Diverting		A-AB-B porting						•
	Equal Percentage
A-port Flow	Modified Equal Percentage			•	•	•			•
Characteristic		Linear
	Quick Open
	Modified Equal Percentage					•			•
B-port Flow		Linear
	Linear, Reduced Cv			•	•
Characteristic
	Total Constant Flow
	Quick Open
Close-off	High	(60 psid minimum)			•	•			•
	Medium	(30 psid minimum)		•		•			•
pressure***
	Varies with actuator
	ANSI Class III (0.10% Cv max.)
Maximum	ANSI Class IV (0.01% Cv max.)			•	A-port	•			•
Seat
	Bubble-tight design					•			•
Leakage**
	Other (see product data literature)				B-port
	High	(50:1 minimum)		•	•
Rangeability	Medium*	(15~50:1)		o
	Low	(under 15:1)				•			•
	Brass, plated brass, bronze			•
Trim	Stainless Steel				•
	Resilient materials					•			•
In-line		Cartridge
		Packing		•	•
Serviceability
		Rebuild			•
	Electronic Modulating			•	•	•			•
	Tri-state floating			•	•	•			•
	Pulse Width Modulation
	2-position low voltage			•	•			Limited
Actuation Options	2-position line voltage			o	o	•			•
	Electric Spring Return			•	•			Limited
	Electronic Fail Safe
	Pneumatic, low pressure							Limited
	Pnuematic bidirectional (Hi-Pr)					•			•
	Pnuematic spring return (Hi-Pr)					•			•
Notes	* Best used with supply water reset from outdoor air temperature.
	** A port specification
	*** A-port maximum operating differential pressure. Static close-off pressure may be higher. Maximum pressure for quiet service may be less.
	**** Stem down to close
	***** Stem up to close										21
	"Limited" = not available in large sizes

Valve Selection