Honeywell MS4103 ユーザーズマニュアル
146
VFF2
Resilient seat two-way valves
provide control for HVAC system
applications including chilled
water, hot water, cooling tower
water, thermal storage systems,
and steam.
provide control for HVAC system
applications including chilled
water, hot water, cooling tower
water, thermal storage systems,
and steam.
SPECIFICATIONS
Body Pattern ........................................ 2 way (NC, NC/NO; NSR)
Body Pattern ........................................ 2 way (NC, NC/NO; NSR)
Valve Action ......................................... Normally Closed, convertible
to Normally Open with Spring
Return DCA
Connection Type .................................. Lugged
Controlled Medium ............................... Chilled and hot water, up to
50% glycol
Actuator Control Type .......................... Electric floating, and
modulating; pneumatic spring
and non-spring return
Type of Enclosure ................................. NEMA 2 housing, DCA,
NEMA 4 industrial electric,
pneumatic linear
Flow Characteristic .............................. Modified Equal Percent
Mounting .............................................. ANSI Flanged
Static Pressure Rating (max) ................ 250 psi (1724 kPa)
Maximum Differential Pressure Ratings
(Close-off) ............................................ 175 psi (1206 kPa)
Actuator Ambient Temperature Ratings -5 F to 140 F (-20 C to 60 C)
Temperature Range ............................. -40 F to 250 F (-40 C to 121 C)
Materials
(Body) .................................................. Polyester-coated cast iron
ASTM A126 Class B
(Stem) ................................................... 416 stainless steel
(Seat) .................................................... Peroxide-cured EPDM resilient
seat
(Plug/Ball/Disc) .................................... Nylon 11-coated ductile iron
APPROVALS
CE ........................................................ Compliant
CE ........................................................ Compliant
Underwriters Laboratories, Inc. ........... C/US UL873, Plenum Rated
DIMENSIONS DIAGRAM
M27011
D
R
G
T
R
F
L1
L2
W
H
NEMA 4X ACTUATORS ARE WATERPROOF AND CORROSION-RESISTANT.
1
PIPE SIZE
IN. [mm]
W
H1
L1
L2
G
W
H1
L1
L2
G
2
[DN50]
2-1/2
[DN65]
3
[DN80]
4
[DN100]
7-1/2
6-3/4
5-1/2
2
5-3/4
5
[191]
[170]
[141]
[51]
[147]
[DN125]
6
[DN150]
8
[DN200]
10
[DN250]
12
[DN300]
14
[DN350]
16
[DN400]
18
[DN450]
8-1/2
16
8-3/4
4-1/2 12-1/2
20
8-1/2
16
8-3/4
4-1/2
12-1/2
[DN500]
[217]
[406]
[221]
[115]
[320]
* 175 PSI [1206 KPA] CLOSE-OFF UP TO 12 INCHES [DN 300], 150 PSI [1034 KPA] OTHERWISE
[51]
[147]
7-1/2
[191]
5-3/4
[141]
[81]
[241]
7-3/4
12-1/8
[307]
[217]
[188]
[198]
12-1/8
8-3/4
8-7/8
7-3/8
2-3/4
8-1/8
7-3/8
2-3/4
[68]
[198]
[68]
NEMA 4X (VFF2_W1YXA/B)
5-1/2
6-3/4
[170]
2
10-1/8
[257]
[406]
[224]
8-1/8
[206]
NEMA 4 (VFF2_W1Y4A/4B)
3-1/4
[221]
[115]
[320]
9-1/2
[226]
7-3/4
UNDER CUT DISK, 50 PSI CLOSE-OFF**
**NOTE: VALVE SIZES 2 TO 3 INCHES HAVE 175 PSI [1206 KPA] CLOSE-OFF AND ARE
AVAILABLE ONLY WITH FULL CUT DISKS.
FULL CUT DISK, HIGH CLOSE-OFF*
3-1/4
9-1/2
[257]
[206]
[188]
[307]
[224]
[226]
[81]
[241]
8-7/8
NEMA 4X (VFF2_V1YXA/B)
NEMA 4 (VFF2_V1Y4A/4B)
10-1/8
8-3/4
WITH NEMA 4/4X ACTUATORS
Resilient Seat Butterfly Valves
VFF2