FAN COIL VALVE BODIES - STROKE 2,5 mm VFX

FAN COIL VALVE BODIES - STROKE 2,5 mm VFX
VFX
FAN COIL VALVE BODIES - STROKE 2,5 mm
APPLICATION
VFX valves series are used in heating, cooling and air-conditioning systems. Two-way and three-way VFX valves are normally
closed on direct way. VFX valves are compact, reliable and can
be easy mounted.
TYPE
WAY
On request they can be supplied with plastic cap that ensures
stem protection and manual action.
They can be used with SE1 electrothermal actuators.
CONNECTION
KVs
m3/h
DIRECT WAY
ANGLE WAY
MAX DIFF. PRESS.
bar
ACTUATOR
VFX210
2
DN15 (G 1/2)
0.25
-
2.5
SE1T / SE1M
VFX211
2
DN15 (G 1/2)
0.4
-
2.5
SE1T / SE1M
VFX212
2
DN15 (G 1/2)
0.6
-
2.5
SE1T / SE1M
VFX213
2
DN15 (G 1/2)
1.0
-
2.5
SE1T / SE1M
VFX214
2
DN15 (G 1/2)
1.6
-
2.5
SE1T / SE1M
VFX235
2
DN20 (G 3/4)
2.5
-
2.5
SE1T / SE1M
VFX237
2
DN20 (G 3/4)
4.0
-
0.8
SE1TP / SE1MP
VFX239
2
DN20 (G 3/4)
6.0
-
0.8
SE1TP / SE1MP
VFX310
3
DN15 (G 1/2)
0.25
0.25
2.5
SE1T / SE1M
VFX311
3
DN15 (G 1/2)
0.4
0.4
2.5
SE1T / SE1M
VFX312
3
DN15 (G 1/2)
0.6
0.6
2.5
SE1T / SE1M
VFX313
3
DN15 (G 1/2)
1.0
0.8
2.5
SE1T / SE1M
VFX314
3
DN15 (G 1/2)
1.6
1.0
2.5
SE1T / SE1M
VFX335
3
DN20 (G 3/4)
2.5
1.6
2.5
SE1T / SE1M
VFX337
3
DN20 (G 3/4)
4.0
2.5
0.8
SE1TP / SE1MP
VFX339
3
DN20 (G 3/4)
6.0
4.0
0.8
SE1TP / SE1MP
VFX410
3 (4 port)
DN15 (G 1/2)
0.25
0.25
2.5
SE1T / SE1M
VFX411
3 (4 port)
DN15 (G 1/2)
0.4
0.4
2.5
SE1T / SE1M
VFX412
3 (4 port)
DN15 (G 1/2)
0.6
0.6
2.5
SE1T / SE1M
VFX413
3 (4 port)
DN15 (G 1/2)
1.0
0.8
2.5
SE1T / SE1M
VFX414
3 (4 port)
DN15 (G 1/2)
1.6
1.0
2.5
SE1T / SE1M
VFX435
3 (4 port)
DN20 (G 3/4)
2.5
1.6
2.5
SE1T / SE1M
VFX437
3 (4 port)
DN20 (G 3/4)
4.0
2.5
0.8
SE1TP / SE1MP
VFX439
3 (4 port)
DN20 (G 3/4)
6.0
4.0
0.8
SE1TP / SE1MP
Accessories
VTP - Override control
ADVFX - Adapter for SE1C/VFX coupling up to KVS 2,5 to allow the valve to be normally open on direct way
TECHNICAL DATA
Nominal pressure:
Stroke:
Regulation mode:
Leakage:
Valve body:
Stem:
Stem gland seal:
Plug spring:
Flow guide:
Plug:
Fluids type:
PN16
2,5 mm
linear
perfect sealing
forged brass
PA + GF
“O“ ring FKM
stainless steel
PPO + GP
PA + GF
water with max. 40% of glycol
Fluid temperature:
Actuator:
Dimensions:
Weight:
+2...+95 ºC
electrothermal SE1 series
see next page
see schedule on next page
FEATURES AND ADVANTAGES
- Connection between actuator and valve by threaded male M30x1.5
ring nut
- Threaded connection GAS with smooth beat
- S ilent operating
-Reliability
1
FAN COIL VALVE BODIES - STROKE 2,5
VFX
mm
INSTALLATION
Before mounting the valve body be sure that the pipes are clean
and free of soldering scraps. Pipes must be lined up squarely
with the valve at each connection and free of vibrations. Install
the valve/actuator vertically or horizontally but never upside
down. Leave enough clearance to facilitate the dismounting of
actuator from the valve body for maintenance purpose.
Valve must not be subjected to water or steam jets or dripping
liquid. 3-way valve must be used in mixing way (2 inlets 1
output). If the valve is used in diverting way (1 inlet 2 outputs),
the max differential pressure allowed is one third of the value
indicated in the schedule.
user
user
2-way valve
3-way valve
PRESSURE DROP CHART
user
3-way valve with 4 ports
E >= 130 mm
G
manual control VTP
VFX2xx
KVs V 100
Δ pv100
DIMENSIONS (mm)
B
G
WEIGHT (g)
C
D
G 1/2
52
46
20
62
110
G 3/4
56
46
22
62
120
VFX237
G 3/4
78
59
35
75
420
VFX239
G 3/4
78
59
35
75
420
VFX310-314
G 1/2
52
52
26
68
116
VFX335
G 3/4
56
57
32
73
144
VFX337
G 3/4
78
70
45
86
430
VFX339
G 3/4
78
70
45
86
430
VFX410-414
G 1/2
52
70
35
86
164
VFX435
G 3/4
56
88
50
104
228
VFX437
G 3/4
78
82
44
98
520
VFX439
G 3/4
78
82
44
98
520
G
VFX210-214
VFX235
2
G
A
G
G
VFX3xx
G
DIMENSIONS (mm)
TYPE
nominal flow coefficient
evaluated flow coefficient at ∆pv100
differential pressure of valve
completely open
G
G
G
G
4.0
20DN
2.5
20DN -1.6
15
DN
.0
5-1
1
DN
3
.
06
15DN
.4
0
15
DN .25
5-0
1
DN
VFX4xx
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