Keystone Guide: ATEX - Operating and Safety Instructions, Keystone-EN Manuals & Guides

KEYSTONE ATEX - OPERATING AND SAFETY INSTRUCTIONS

HIGH PERFORMANCE BUTTERFLY VALVES (MODEL WINN HISEAL)

Additional Safety Instructions for Valves and Accessories being used in
aPotentially Explosive Atmosphere under ATEX 94/9/EC

REFERENCE

These are additional safety instructions to
PEDdocument number: VCOSI-01734.
See also: Emerson.com/FinalControl

MARKING

Strictly in accordance with the requirements of
ATEX 94/9/EC. Marking includes:

• CE Mark.

• The Notified Body number if applicable
(1180SGS Baseefa).

• Epsilon X (Ex Mark).

• The Equipment Group II (non-mining
equipment).

• The Equipment Category 1, 2 or 3, see label.

• The Type of Explosive Atmosphere GD
(gasand dust).

• The Means of Protection Used (c) (Voluntary).

• The Temperature Class T1-T6 (Voluntary),
seethe third note in selection below.

• The Applicable Certificate Number from
theNotified Body.

SELECTION

• During installation ensure that no metallic
shocks/impacts are made to the equipment
or the adjacent pipework.

• Ensure that the equipment is suitably
earthed, through the pipe or individually.

• The installer should thoroughly follow the
operating and safety instructions provided
foreach individual item of equipment.

• When the valve is to handle hot fluids or fluids
where exothermic reactions may take place,
the end user must take al the necessary
measures to ensure that the hot surface of
the valve cannot provide a source of ignition
to the surrounding gas, vapor, mist or dust
atmosphere.

• Before putting into use or during operation
with a dangerous fluid, ensure that no release
of the fluid to atmosphere can take place.

• In case of actuated valves, ensure no brittle
materials are used for the bracket and
coupling.

• The risk assessment of the actuated
packages has been performed supposing
themaximum tangential velocity of the
moving parts is less than 1 m/s. If the actual
velocity exceeds 1 m/s, a new conformity
assessment is required.

SPECIAL CONDITIONS FOR SAFE USE

• When connected to an actuator the maximum
rubbing speed of any component within the
valve must not exceed 1 ms

• The ambient temperature range for which
these valves are suitable depends on the
materials used in their construction and
the pressure at which they will be used. The
maximum withstand temperature is included
in the Equipment Directive (PED) marking.
The lower ambient will be specified in the
documentation provided with each valve.

-

¹.

• Ensure that the equipment is marked with
thecorrect equipment group, category and
type of atmosphere for the application and
that the safety instructions are followed for
each item of the equipment.

• In particular, all items included in an actuator
package, including valve, actuator and all
accessories should be CE marked to ATEX in
the appropriate and/or requested category.

• The temperature classification of valves
is entirely dependant on the process fluid
passing through the valve. If relevant, this
must be established by the end user and
must not exceed the maximum temperature
rating of the valve, marked on the valves
identification label.

INSTALLATION

• The installer must only use tooling
appropriate to the working area,
seeEN1127-1 Annex A.

• Installation has to be carried out at ambient
temperature.

Emerson.com/FinalControl

MAINTENANCE

• The operator must ensure that only personnel
qualified to work in a potentially hazardous
area are allowed to carry out maintenance
appropriate to the category of the equipment
in use.

• The end user must ensure that only tooling
appropriate to the working area is used, see
EN1127-1 Annex A.

• All equipment must only be fitted with
manufacturer’s original spare parts.

VCOSI-01755-EN 14/09© 2017 Emerson. All rights reserved.