Burkert Type 2731 - Manual (Page 29)

12 replaceMenT parTs
Warning!
risk of injury when opening the actuator!
The actuator contains a tensioned spring. If the actuator is opened,
there is a risk of injury from the spring jumping out!
▶ The actuator must not be opened.
CauTion!
risk of injury and/or damage by the use of incorrect parts!
Incorrect accessories and unsuitable replacement parts may
cause injuries and damage the device and the surrounding area.
▶ Use only original accessories and original replacement parts
from Bürkert.
The diaphragm is available as a replacement part for the piston-con-
trolled diaphragm control valve Type 2730 / 2731 / 2731K.
If you have any queries, please contact your Bürkert sales
office.
Diaphragm
Fig. 21: Diaphragm replacement part
12.1 Order table
Orifice dn
(diaphragm
size) [mm] Order numbers for diaphragms
epdm
fkm ptfe
15 677 664 677 685 677 675
20 677 665 677 686 677 676
25 677 667 677 687 677 677
32 677 668 677 688 677 678
40 677 669 677 689 677 679
50 677 670 677 690 677 680
Tab. 15: Order numbers for diaphragms
29
Replacementparts
english
Type 2730 / 2731 / 2731K