Burkert 2030 Mode D'emploi page 14

Orifice DN Tightening torques for diaphragms [Nm]
(Diaphragm size)
EPDM/FKM
65
80
100
Tab. 3: Tightening torques for diaphragms
→
A tolerance of +10% of the respective tightening torque applies
to all values.
7.7 VA insert
Devices delivered without a diaphragm and a valve body
have a VA insert (order no. 648 864) enclosed.
• The VA insert is required for devices with a diaphragm featuring a
threaded connection.
→
The VA insert must be inserted into
the groove of the pressure piece
before installing the diaphragm and
the actuator.
• The VA insert is not required for devices with a diaphragm fea-
turing a bayonet catch.
14
PTFE/advanced
PTFE/laminated
PTFE
20 30
30 40
40 50
Insert
english
Type 2030, 2031, 2032,
Installation
7.8 Connection of the control medium
Control function A:
→
Connect control medium to lower connection.
Control function B:
→
Connect control medium to upper connection.
Control function I:
→
Connect control medium to upper and lower connections.
→
Pressure on the upper connection closes the valve.
→
Pressure on the lower connection opens the valve.
Fig. 2: Pilot air connection
2033, 2037
Upper pilot air connection
(for CFB and CFI)
Lower pilot air connection
(for CFA and CFI)