72
Dixon Sanitary 2014
800.789.1718
Diaphragm Valves
DV21
Pneumatically Operated Valve DN 15-100 mm (½"-4")
Features
•
high cycle piston stainless steel actuator
•
compact design, the outside diameter of the actuator is the
same size as the bonnet flange
•
available in multiport bodies and manifold valve assemblies
•
control air connection in flow direction
•
circumferential defined sealing angle between process
diaphragm and valve body
•
flexible diaphragm suspension
•
encapsulated diaphragm
•
clean and polished exterior design ideal for sterile
washdowns
Optional
•
available with a wide range of control equipment and
accessories, see pages 82-83, also for retrofitting
•
control air connection 90° to flow direction
•
autoclavable
Technical Data
•
control function: pneumatically operated
fail safe close (NC)
fail safe open (NO)
double acting (DA)
•
direction control connection:
in flow direction, standard
90
° to flow direction, optional
•
maximum working pressure: unidirectional (delta p = 100%),
a higher working pressure may be achieved with a different
actuator
•
maximum working temperature: 350°F (175°C), dependent
on application
•
control pressure:
NC:
DN 15-80, 72-116 PSI (5-8 BAR)
NC:
DN100, 87-116 PSI (6-8 BAR)
NO, DA
DN 15-80, 65-87 PSI (4.5-6 BAR)
NO, DA
DN 100, 80-101 PSI (5.5-7 BAR)
•
diaphragm material: EPDM or PTFE
•
valve body material: forged 1.4435/316L ASME/BPE,
investment cast 1.4435/316L, other alloys
•
end connection: weld ends, clamps (see page 57), special
ends
•
actuators suitable for: two-way bodies, welded
configurations, T-bodies, multiport bodies and tank bottom
bodies
•
flow rate: C
v
in GPM, see page 57
•
diaphragm size: MA see table below
DN
(
mm)
Dimensions (mm)
MA L L
1
A x B H
1
H
2
H
3
D
15-25 25 25 120 73
x79 146 66 133 75
32-40 40 25 153 96
x105 180 75 160 105
50 50 30 173 111
x130 216 77 180 105
65 80 30 216 190
x170 309 135 285 175
80 80 30 254 190
x170 309 135 285 175
100 100 30 305
Ф
238 318 143 295 175
Diaphragm DN 15-50 (2") DN65-80 (2.5"-3") DN100 (4")
EPDM 145PSI (10BAR) 101 PSI (7 BAR) 87 PSI (6 BAR)
PTFE 116 PSI (8 BAR) 87 PSI (6 BAR) 72 PSI (5 BAR)
DN 15-50
DV21
p
Ф
s
L
1
L
oD
5
H
1
H
3
H
2
G1/4
AxB
F