Keystone Figure 89 (F89) Pneumatic Actuator Safety Guide (ATEX), Keystone-EN Manuals & Guides

KEYSTONE F89 PNEUMATIC ACTUATOR

SAFETY GUIDE

Safety guide (ATEX) for F89 Rack and Pinion Pneumatic Actuators

1 SAFETY INSTRUCTIONS

Please read these safety warnings, cautions,
and instructions carefully before using the
product.

These instructions cannot cover every
installation and situation. Do not install,
operate, or maintain this product without being
fully trained and qualified in valve, actuator,
and accessory installation, operation and
maintenance.

To avoid personnel injury or property damage,
it is important to carefully read, understand,
and follow all of the contents of the associated
instruction manual, including all safety cautions
and warnings. If you have any questions
concerning installation, or use of this product,
contact your Emerson sales office before
proceeding.

CONTENTS

1 Safety instructions .................................. 1

1.1 ANSI 534.6 Safety messages ...................... 1

2 General information ................................ 2

2.1 General application ..................................... 2

2.2 Inspection and maintenance schedules .... 2

2.3 Parts ordering .............................................. 2

3 Keystone F89 - Series actuators ............. 3

3.1 Installation ................................................... 3

3.2 Operation ...................................................... 3

3.3 Maintenance ................................................ 4

4 Actuator accessories .............................. 5

5 Instructions for use in (potential)

explosive areas ....................................... 5

5.1 Intended use ................................................ 5

5.2 Safety instructions ....................................... 5

5.3 Maximum temperatures ............................. 6

1.1 ANSI 534.6 Safety messages

WARNING

Indicates a hazardous situation that, if not
avoided, could result in death or serious injury.

CAUTION

Indicates a hazardous situation that, if not avoided,
could result in minor or moderate injury.

NOTE

Indicates information considered important,
but not hazard-related.

Emerson.com/FinalControl VCOSI-15795-EN 21/07

© 2017 Emerson. All Rights Reserved.

KEYSTONE F89 PNEUMATIC ACTUATOR

SAFETY GUIDE

2 GENERAL INFORMATION

2.1 General application

Keystone Rack and Pinion Pneumatic F89
actuators are intended for the automation and
operation of quarter-turn valves like butterfly &
ball valve.

Rack and Pinion actuators can also be used to
operate venting louvers or any other quarter­turn applications.

This product was intended for a specific range
of service conditions: pressure, ambient
temperature, operating media, and possibly
other specifications. Do not expose the product
to service conditions or variables other than
those for which the product was intended.

If you are not sure what these conditions or
variables are, contact your Emerson sales
office for assistance. Provide the product type,
size, serial number and all other pertinent
information that you have available.

2.2 Inspection and maintenance schedules

Keystone F89 - Series actuators must be
inspected periodically and maintained as
needed. Refer to the maintenance section of
manual VCIOM-03059-EN for more detailed
information.

2.3 Parts ordering

When ordering parts for older products, always
specify the type, size and serial number of
the product and provide all other pertinent
information that you can, such as part material,
age of the product, and general service
conditions. If you have reconfigured the product
since it was originally purchased, include that
information with your request.

WARNING - USE GENUINE PARTS

Use only genuine replacement parts. Components
that are not supplied by Emerson should not,
under any circumstances, be used in any Keystone
F89 product. Use of components not supplied by
Emerson may void your warranty, might adversely
affect the performance of the product, and could
cause personal injury and property damage.

The schedule for inspection can only be
determined based on the severity of your
service conditions. Your installation might
also be subject to inspection schedules
set by applicable governmental codes and
regulations, industry standards, company
standards, or plant standards.

In order to avoid increasing dust explosion
risk, periodically clean dust deposits from all
equipment.

When equipment is installed in a hazardous
area (potentially explosive atmosphere), prevent
sparks by proper tool selection and avoiding
other types of impact energy.

Proper care must be taken to avoid
generation of static electricity on the non­conductive external surfaces of the equipment
(e.g. rubbing of surfaces, etc.). The actuator's
surface temperature is dependent upon
process operating conditions.

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KEYSTONE F89 PNEUMATIC ACTUATOR

SAFETY GUIDE

3 KEYSTONE F89 - SERIES ACTUATORS

These safety instructions are limited to
Keystone F89 - Series actuators which
are operating using compressed air. If the
application requires use of a flammable or
hazardous gas, you must contact your Emerson
sales office for assistance.

3.1 Installation

WARNING - DO NOT EXCEED
SPECIFICATION

To avoid personal injury and property damage
caused by bursting of parts and to avoid parts
damage, malfunction of control valve, or loss
of control of the process caused by excessive
pressure, do not exceed the maximum pressures
or temperatures for this actuator, as given
in the applicable product literature or on the
nameplate. Use pressure-limiting or pressure­relieving devices to prevent the actuator pressure
from exceeding specified limits. If you cannot
determine the limits for this product, contact your
Emerson sales office before proceeding.

• To avoid personal injury, always wear protective
gloves, clothing and eye wear when performing
any installation operation.

• If hoisting the actuator, use a nylon sling to
protect the surfaces. Carefully position the
sling to prevent damage to the actuator tubing
and any accessories. Also, take care to prevent
people from being injured in case the hoist
or rigging slips. Be sure to use adequately
sized hoists and chains or slings to handle the
assembly. If an actuator/valve assembly should
be lifted, it is strongly recommended to connect
the nylon lifting slings in such way that the
actuator and valve is supported.

• Check with your process or safety engineer for
any additional measures that must be taken to
protect against process media.

• I

f installing into an existing application, also refer

to the WARNING in the Maintenance section.

• Do not connect a pressure vessel to the actuator
with unrestricted media.

• Do not exceed the MAXIMUM stated operating
pressures.

• Applying pressure directly to the actuator can
turn the actuator's shaft/valve stem.

• Applying a control signal to the actuator's
solenoid can turn the actuator/valve assembly.

WARNING - MOVING PARTS

Stay away from moving parts to prevent serious
injury. When test cycling the actuator and valve
assembly by applying pressure to the A or B port,
be aware that there are moving parts like pinion
top, actuator to valve coupling and the valve stem,
ball, plug, etc.

Isolate the piping system on which an actuator­valve assembly is installed, when removing
this assembly, and relieve any media pressure
that may be trapped in the valve cavities before
removing the actuator for maintenance.

3.2 Operation

WARNING - MOVING PARTS

When rotating the actuator stem or shaft with
loading pressure applied, use caution to keep
hands and tools out of the actuator travel path.
Personal injury and property damage is possible
if something is caught between the actuator stem
and other control valve assembly parts.

3.2.1 Operating media

• Use clean, dry or lubricated air.

• Maximum Operating Pressure (MOP)
= 8.3 bar/120 psi (Dynamic)

- MOP is the pressure required to produce

the maximum rated torque at the break
position for all actuators.

- Pressure should not exceed MOP during

valve rotation.

- MOP should be the maximum pressure

regulator setting.

WARNING - DO NOT EXCEED
SPECIFICATION

It can be assured that the housing will not
rupture or burst when applying 10 bar (145 psi)
of pressure but the cycle function cannot be
guaranteed as it totally depends on the time span
to which actuator is subjected at 10 bar (145 psi)
and the frequency at which these pressure peaks
occurs. Every time this peak occurs it will surely
have a significantly negative effect on the life
expectancy of the actuator.

• Spring stroke of spring-return actuators
should not operate pneumatically.

• Dew point at least 10 K below ambient
temperature.

• For subzero applications take appropriate
measures.

• Mentioned pressure levels are "gauge
pressures". Gauge pressure is equal to
absolute pressure minus atmospheric
pressure

.

3.2.2 Operating temperature range

• Using standard seals and greases,
the operating temperature range is

-20 °C to 80 °C (-4 °F to 176 °F) as is
indicated on the product label.

• Other medias and temperatures may be used
but consult your local Emerson sales office
for confirmation as to suitability.

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KEYSTONE F89 PNEUMATIC ACTUATOR

SAFETY GUIDE

3.3 Maintenance

Before mounting or (dis) assembling the
actuator consult the relevant sections of the
installation, operation and maintenance manual
for more detailed maintenance information.

WARNING

Avoid personnel injury or property damage
from sudden release of process pressure
or uncontrolled movement of parts. Before
performing any maintenance operations:

• Always wear protective gloves, clothing,
and eye wear.

• Disconnect any operating lines providing air
pressure, electric power, or a control signal
to the actuator. Be sure the actuator cannot
suddenly open or close the valve.

• Do not remove the actuator from the valve while
the valve is still pressurized.

•

Vent any pneumatic pressure from the actuator

and relieve any actuator spring pre-compression.

• Use lock-out procedures to be sure that the
above measures stay in effect while you work on
the equipment.

• Never apply pressure to a partially assembled
actuator unless all pressure-retaining parts
have been installed properly.

• Check with your process or safety engineer for
any additional measures that must be taken to
protect against process media.

• Do not remove the pistons from the actuator
body by using air pressure when the end caps
have been removed.

CAUTION

• Do not turn out the travel stops completely
when the actuator is pressurized. When
adjusting the travel stops and the actuator is
still pressurized, the travel stops can “shoot”
away when completely turned out.

CAUTION

• Spring-return actuators contain springs in a
compressed state. Follow these instructions to
release the spring force safely. The end caps
of spring-return actuators should be free of
the spring load after loosening end cap screw
evenly (3-5 mm/0.118-0.197 in). If there is still
spring load on the end cap, this might indicate a
broken spring cartridge. Stop this disassembly
procedure immediately. Continuing might cause
the end cap to be “shot” away causing serious
injury. Retighten the end cap screws and return
the unit to factory for service.

Refer to Appendix A of manual VCIOM-03059-EN

for the instructions on how to safely remove the
spring load before disassembling the end cap
from the spring-return actuator.

• A spring-return actuator mounted on a valve,
which is stuck in mid-stroke, contains a high
spring load which will cause a sudden rotation
during disassembly of the actuator versus the
valve or valve bracket. This can cause serious
injury to personnel or equipment damage. Refer
to Appendix A of manual VCIOM-03059-EN for
instructions to safely remove the spring load
before disassembling the actuator from a valve,
which is stuck in mid-stroke.

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KEYSTONE F89 PNEUMATIC ACTUATOR

SAFETY GUIDE

4 ACTUATOR ACCESSORIES

The actuator may be equipped with
components for control and/or feedback.
Check the instructions of these components
for installation, operation and maintenance
instructions.

5 INSTRUCTIONS FOR USE IN (POTENTIAL)
EXPLOSIVE AREAS

5.1 Intended use

The Keystone F89 - Series pneumatic actuators
are intended for use in areas in which explosive
atmospheres caused by mixtures of air and
gases, vapors, mists or by air/dusts are likely
to occur. Therefore, it may be used in classified
Zones 1, 2 with equipment protection level Gb
(Gasses) and/or Zones 21, 22 with equipment
protection level Db (Dust).

• Assembly, disassembly and maintenance,
are only allowed at the actuator, when, at the
time of the activity, there are no explosive
mixtures.

• Prevent entry of explosive mixtures into the
actuator. We suggest utilizing a solenoid
with a "breather" function on spring-return
actuators when used in potentially explosive
atmospheres.

• In order to avoid increasing dust explosion
risk, periodically clean dust deposits from all
equipment.

• When equipment is installed in a hazardous
area location (potentially explosive
atmosphere), prevent sparks by proper tool
selection and avoiding other types of impact
energy.

• Rack and pinion actuators do not have an
inherent ignition source due to electro­static discharge, but explosion hazards
may be present due to the discharge of
static electricity from other valve assembly
components.

- To avoid personal injury or property damage,

make sure that the valve is grounded to the
pipeline before placing the valve assembly
into service.

- Use and maintain alternate shaft-to-valve

body bonding, such as a shaft-to-body
bonding strap assembly.

• Proper care must be taken to avoid
generation of static electricity on the
non-conductive external surfaces of the
equipment (e.g. rubbing of surfaces, etc.).

• The paint protection must not exceed
200 μm if the actuator is used in a group
IIC atmosphere. For group IIA or IIB
atmospheres the paint protection must not
exceed a thickness of 2 mm (0.08 in).5.2 Safety instructions

5

KEYSTONE F89 PNEUMATIC ACTUATOR

SAFETY GUIDE

5.3 Maximum temperatures

WARNING - SURFACE TEMPERATURE

The actuator's surface temperature is dependent
upon process operating conditions. Personal
injury or property damage, caused by fire or
explosion, can result if the actuator's surface
temperature exceeds the acceptable temperature
for the hazardous area classification. To avoid
an increase of instrumentation and/or accessory
surface temperature due to process operating
conditions, ensure adequate ventilation, shielding,
or insulation of these actuator components
installed in a potentially hazardous or explosive
atmosphere.

TABLE 1- TEMPERATURE RANGE FOR (POTENTIAL) EXPLOSIVE AREAS

Temperature

Ambient range Temperature class Max. (Surface temperature)

-20 °C (-4 °F) to 80 °C (176 °F) T6 85 °C (185 °F) Standard temperature version

-15 °C (-5 °F) to 150 °C (302 °F)

-52 °C (-62 °F) to 65 °C (149 °F)

T3 200 °C (392 °F) High temperature version
T6 85 °C (185 °F) Low temperature version

Valid for actuator model

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unit of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed
as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and
conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Emerson Electric Co. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of
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