Festo — VTOP — 2021-07
Product overview
7
4
Product overview
4.1
Function
The valve terminal VTOP has a modular design and, depending on the modules used, the following
additional pneumatic functions can be implemented:
–
Compressed air regulation and filtering
–
Volume flow boost
–
Reaching a defined end position in the event of a pressure failure
–
Safe venting
–
Direction reversal for double-acting pneumatic drives
The valve terminal VTOP, the pneumatic drive and the positioner are mechanically and pneumatically
connected by the adapter plate VABA. The compressed air supply is connected centrally to the pneu-
matic ports of the adapter plate VABA. The AiRing function distributes the compressed air internally.
This eliminates the need for complex tubing or piping for the individual modules.
4.2
Module overview
Module
Function
Adapter plate VABA
VABA-C13-100-1-F90-G12
Interface between valve terminal VTOP, pneumatic actuator and
positioner
VABA-C13-100-2-F90-G12
Volume booster VOGM
VOGM-FD100-M33E-M-F90
Boosting the compressed air flow rate specified by the positioner
for single-acting pneumatic drives
VOGM-FD100-T33H-M-F90
Boosting the compressed air flow rate specified by the positioner
for double-acting pneumatic drives
Filter regulator PCRI
PCRI-100-F90-12-C-T3
Filtering 5 µm and regulation of the filtered compressed air
PCRI-100-F90-12-E-T3
Filtering 40 µm and regulation of the filtered compressed air
Fail-safe module VOGI
VOGI-F100FS-T32H-M-F90
Reaching a defined end position in the event of pressure failure
for double-acting applications
Flange module for safety functions VABP
VABP-C13-100HFT0-F90
Interface for safe venting in different safety architectures for
single-acting applications
VABP-C13-100HFT1-F90
End plate VABE
VABE-C13-100-F90-DU
Reversal of the effective direction with double-acting pneumatic
drives
Tab. 4: Module overview