Burkert 2657 Instructions De Service page 12

name and material of the individual parts
position Components
1 Insert
2 Handle
3 Shaft O-ring
4 Shaft
5 Ball seat
6 Ball
7 Body
8 Support O-ring for ball seat EPDM-FKM
9 Radial seal O-ring
10 Socket seal O-ring
11 Support for ball seat
12 End connector
13 Union nut
14 Spring for lock (optional)
Safety handle block for lock
15
(optional)
16 Dual Block Locking device
12
Material
PVC-U
PVC-U
EPDM-FKM
PVC-U/PP/PVC-C/PVDF
PTFE
PVC-U/PP/PVC-C/PVDF
PVC-U/PP/PVC-C/PVDF
EPDM-FKM
EPDM-FKM
PVC-U/PP/PVC-C/PVDF
PVC-U/PP/PVC-C/PVDF
PVC-U/PP/PVC-C/PVDF
Stainless steel
PP-GR
POM
english
Type 2657
TechnicalData
exploded view 3-way model
Fig. 3: Exploded view 3-way model of the plastic ball valve