Burkert Type 2037 - Manual (Page 12)

12
TechnicalData
control pressure for control function a
The values are valid for
• VA tube-formed body with welded nozzles in accordance with
DIN 11850 series 2, with OD weld-on ends, with ANSI and JIS
welding neck flange
connection
size
dn
[mm]
actuator size
[mm]
control pressure [bar]
for medium pressure
0 bar maximum
10 40 5 4
15
50 5 3.5
63 5 4
20
50 5 3.5
63 5 4
25
63 5 4
80 5.5 4
32 63 5 4.5
32 80 5.5 4.5
40 100 5.5 4
50
100 5.5 4
125 5.5 4
65 125 5.5 4.5
Tab. 8: Control pressure CFA
6.4.4 minimum control pressure
required minimum control pressure depending on medium
pressure
The values apply to body made of
• Plastic
• All models with VA forged steel and VA precision casting
• VA tube-formed body with socket, DIN welding neck flange and
weld-on ends in accordance with EN ISO 1127 (ISO 4200)
control function B (cfB)
noTe!
important for the service life of the diaphragm!
• Do not select control pressure higher than required.
DN20,
Ø
80
0
2
4
6
8
10
0 1 2 3 4 5 6 7 8 9 10
DN15,
Ø
63
DN8,
Ø
40
DN15,
Ø
50
DN25,
Ø
80
DN25,
Ø
63
DN20,
Ø
63
Medium pressure [bar]
Control pressure [bar] CFB / EPDM
Actuator size
Orifice
(Diaphragm size)
Fig. 4: Control function B, elastomer diaphragm, actuators
ø 40 – 80 mm
english
Type 2030, 2031, 2031 K, 2032,
2033, 2037