Burkert Type 2731 - Manual (Page 12)

diaphragm medium remarks
EPDM -10 – +130 °C Steam sterilization: up to +150 °C
FKM 0 – +130 °C
• dry up to + 150 °C
• otherwise only briefly up
to +150 °C
PTFE -10 – +130 °C Steam sterilization: up to +150 °C
Tab. 4: Permitted medium temperature for diaphragms
6.6.2 pressure ranges
Warning!
risk of injury, chemical burns, scalding due to the device
rupturing at excessively high pressure!
▶ Do not exceed the maximum pilot and medium pressure.
▶ Observe permitted ambient and medium temperature.
▶ Observe specifications on the type label.
pilot pressure for valves with pneumatic position controller
To ensure reliable operation with pneumatic position controller,
observe the permitted minimum and maximum pilot pressure!
actuator size [mm] pilot pressure
ш 80, ш 100, ш 125 5.5 – 7.0 bar
Tab. 5: Pilot pressure for valves with pneumatic position controller
maximum pilot pressure for valves without pneumatic position
controller
actuator size [mm] actuator material
max. permitted pilot
pressure
2)
ш 80, ш 100 PA 10 bar
ø 125 PA 7 bar
ш 80, ш 100, ш 125 PPS 7 bar
Tab. 6: Maximum pilot pressure for valves without pneumatic
position controller
maximum pilot pressure for valves without pneumatic position
controller - only control function B and stainless steel body (Va)
actuator size [mm] actuator material
max. permitted pilot
pressure
2)
ш 80, ш 100, ш 125 PA, PPS 6 bar
Tab. 7: Maximum pilot pressure for valves without pneumatic
position controller - only CFB and stainless steel body (VA)
2)
Observe the maximum pressure range according to the type
label!
12
Technicaldata
english
Type 2730 / 2731 / 2731K