EasyManuals Logo

BIFFI RPS User Manual

BIFFI RPS
21 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #11 background imageLoading...
Page #11 background image
11
3.5 Calibration of the operating time
(optional- if foreseen)
The calibration of the operating time is made
according to customer requirements and to
technical data sheet included in technical
documentation. If necessary it’s possible to
modify or reset the operating time through
the flow regulator valve placed on inlet of
pneumatic supply (figure 19).
Pneumatic connection
Pneumatic connection
(close) screw for decrease speed
(open) unscrew for increase speed of operation
Screwdriver
Wrench
FIGURE19
Example of operating time adjustment by flowregulator valve (please refer to specific operating
diagram)
4 OPERATIONAL TESTS AND INSPECTIONS
IMPORTANT
To ensure the guaranteed SIL Level, according
to IEC 61508, the functionality of actuator must
be checked with regular intervals of time, as
described following.
For safety related applications, the following
test operation has to be performed:
1. Full stroke of actuator once a year.
2. Partial stroking test at least every six
months (if applicable, please refer to
operating diagram and operate accordingly).
3. Visual inspection-checks , according to
section 5.1, but with a frequency of once
a year.
For standard applications please refer to
section 5.1.
5 MAINTENANCE
IMPORTANT
Before executing any maintenance operation, it
is necessary to close the pneumatic supply line
and discharge pressure from the cylinder of the
actuator and from the control unit (if foreseen).
WARNING
Installation, commissioning and maintenance
and repair works should be carried out by
qualified staff.
5.1 Periodic maintenance
RPS actuators are designed to operate long-
term in heavy-duty operating conditions,
without maintenance needs.
IMPORTANT
Periodicity and regularity of inspections is
particularly influenced by specific environmental
and working conditions.
They can be initially determined experimentally
and then be improved according to actual
maintenance conditions and needs.
Anyway every 2 years of operation the following
is recommended:
• Check that the actuator operates the valve
correctly and with the required operating
times. If the actuator operation is very
infrequent, carry out a few opening and
closing operations with all the existing
controls (remote control, local control,
emergency controls, etc.), if this is allowed by
the conditions of the plant.
• Check all the paint-coat of the actuator.
If some areas are damaged, repair the
paint-coat according to the applicable
specification.
• Check there are no pneumatic leakages If
necessary tighten the nuts of the pipe-fittings.
• Check the integrity of worn out parts (gaskets,
pads etc.).
• If there is an air filter on the actuator, bleed
the condense water accumulated in the cup
by opening the drain cock. Disassemble the
cup periodically and wash it with soap and
water; disassemble the filter: if this is made
up of a sintered cartridge, wash it with nitrate
solvent and blow through with air. If the filter
is made of cellulose, it must be replaced
when clogged.
RPS SPRING RETURN PNEUMATIC ACTUATOR
INSTALLATION, OPERATION AND MAINTENANCE MANUAL

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the BIFFI RPS and is the answer not in the manual?

BIFFI RPS Specifications

General IconGeneral
BrandBIFFI
ModelRPS
CategoryController
LanguageEnglish

Related product manuals