Honeywell MS4103 manual MN/MS Series Direct Coupled, Actuators with Q5020 valve, Linkage, 142

Flanged Globe Valve

VGF2

VGF Flanged Globe Valves are used for 2-position or modulating control of steam, hot water, or chilled water-glycol solutions up to 50 percent concentration in heating, ventilation and air conditioning (HVAC) systems. They can be operated by ML6984/7984, ML6420/6425, ML6421/7421 Electric Linear Actuators, MP953 Pneumatic Actuators, Modutrol™ Motors with Q5001 valve linkage, or

MN/MS Series Direct Coupled
Actuators with Q5020 valve
linkage.
SPECIFICATIONS
Valve Type	Globe Valve
Body Pattern	Two-way
Flow characteristic	Equal percentage or Linear
Connection Type	Flanged
Valve Action	Step down to close
Controlled Medium	Hot/Chilled Water with up to
	50% Glycol; Steam
Leakage Rating	0.05% of Cv
Maximum Safe Operating Pressure	400 psig (2750 kPa)
Maximum Differential Pressure Ratings
(Close-off)	Varies with actuator force
Fluid Temperature Range	20 F to 250 F, steam 335 F
	(-7 C to 120 C, steam 180 C)
Actuation	Must be purchased separately
Stem Travel
2-1/2 and 3 in. valves	3/4 in. (20 mm)
4 to 6 in. valves	1-1/2 in. (39 mm)
Bonnet Size
2-1/2 and 3 in. valves	1-3/8 in. (35 mm)
4 to 6 in. valves	1-7/8 in. (47.6 mm)
Materials
(Body)	Cast Iron ASTM A126 Class B
(Stem)	Stainless Steel
(Seat)	Stainless Steel
(Cartridge)	Stainless Steel
(Plug/Ball/Disc)	Stainless Steel
(Packing)	Spring-loaded PTFE cone
	rings

FEATURES

•ANSI Class 125 and Class 250 cast iron bodies with flanged end connections.

•Equal percentage and linear flow characteristics

•Face-to-face flange dimensions per ANSI/ISA S75.03 standard.

•Sizes from 2-1/2 to 6 in.

•Stainless steel trim standard for long life span.

•ANSI CLass III seat leakage

•Steam inlet pressure up to 125 psig and 353 F maximum temperature.

•Self-adjusting packing.

•Accurate positioning with equal percentage and linear flow characteristics to ensure precise temperature control.

•Universal bonnet for direct-coupled electric and pneumatic actuators for easy mounting, or linkage coupled Modutrol™ Motors and MN/MS Series direct coupled actuators.

•Not suitable for combustible gasses.

DIMENSIONS DIAGRAM

STROKE Y

D

B

C

A

1 DOTTED LINE REPRESENTS ANSI 125 VALVE BONNET.

MODEL		DIMENSIONS, IN. (MM)
NUMBER	A	B	C	E	Y
2-WAY VALVES, ANSI CLASS 125. STEM DOWN TO CLOSE. EQUAL
PERCENTAGE OR LINEAR FLOW CHARACTERISTIC
VGF21_S25	10-7/8 (276)	4-3/8 (112)	7 (178)	3-1/2 (89)	13/16 (20)
VGF21_S30	11-3/4 (298)	6-3/8 (161)	7-1/2 (191)
VGF21_S40	13-7/8 (352)	5-7/8 (150)	9 (229)	5-1/4 (133)	1-1/2 (38)
VGF21_S50	15-3/4 (400)	6-3/16 (157)	10 (254)
VGF21_S60	17-3/4 (451)	6-3/16 (157)	11 (279)
2-WAY VALVES, ANSI CLASS 250. STEM DOWN TO CLOSE. EQUAL
PERCENTAGE FLOW CHARACTERISTIC
VGF22ES25	11-1/2 (292)	4-3/8 (112)	7-1/2 (191)	3-1/2 (89)	13/16 (20)
VGF22ES30	12-1/2 (318)	6-3/8 (161)	8-1/4 (210)
VGF22ES40	14-1/2 (368)	5-7/8 (150)	10 (254)	5-1/4 (133)	1-1/2 (38)
VGF22ES50	16-5/8 (422)	6-3/16 (157)	11 (279)
VGF22ES60	18-5/8 (473)	6-3/16 (157)	12-1/2 (318)
2-WAY VALVES, PRESSURE-BALANCED, ANSI CLASS 125. STEM DOWN TO
CLOSE. EQUAL PERCENTAGE OR LINEAR FLOW CHARACTERISTIC
VGF21_P25	10-7/8 (276)	4-3/16 (107)	7 (178)	3-1/2 (89)	13/16 (20)
VGF21_P30	11-3/4 (298)	5-7/8 (150)	7-1/2 (191)
VGF21_P40	13-7/8 (352)	5-7/8 (150)	9 (229)	5-1/4 (133)	1-1/2 (38)
VGF21_P50	15-3/4 (400)	6-1/8 (156)	10 (254)
VGF21_P60	17-3/4 (451)	6-1/8 (156)	11 (279)
					M27603

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