Emerson Keystone PED Quick guide

KEYSTONE PED - OPERATING AND SAFETY INSTRUCTIONS

Resilient seated ButteRfly ValVes

7 m o

HAZARD POTENTIALS

• Disregarding of instructions

• Improper use of product

• Insufficiently qualified personnel

Ensure that valve materials are compatible with

the pipeline fluid.

Valve application to be within the pressure/

temperature limits indicated in the P/T diagram

of the Product Manual.

If in doubt contact factory.

Check the valve’s functionality on a regular

basis.

When the valve is used in an end-of-line

function, PED Cat-I applications are allowed

only. For other categories, contact factory.

PRECAUTIONS

WARNING

For safety reasons, it is important to take the

following precautions before you start work on

the valve:

1. Personnel making any adjustments to the

valves should utilize suitable equipment.

All required personal protection means should

be worn.

2. The line must be depressurized before

installing the valve. In case of dangerous

pipeline fluids, the pipeline should be drained

and flushed properly with an appropriate

cleaning fluid.

3. Personnel trained in all aspects of manual and

mechanical handling techniques must carry

out handling of all valves.

4. Misuse of the valve is not allowed.

For example: the valve, handles, actuators or

other parts may not be used as ‘climbing tools’.

5. Ensure the valve pressure/temperature

specification as indicated on the identification

label, is within the pressure/temperature

limits of the application. A full pressure/

temperature diagram can be obtained from

the Product Manual. With the use of the figure

and trim number on the valve’s identification

label, the correct diagram can be found.

6. Ensure that valve materials are compatible

with the pipeline fluid.

Before installation, these instructions must be fully read and understood

INSTALLATION

1. Handling and lifting should be performed

according the Maintenance and Installation

Instructions.

2. Keystone valves are bi-directional unless

fitted with a flow direction arrow. If a

directional arrow is fitted then the valve

must be installed with the arrow pointing in

the direction of the flow.

3. For detailed installation instructions

refer to the Maintenance and Installation

Instructions for the specific product.

4. Preferred installation position of butterfly

valves is the shaft horizontal and the lower

disc-edge opening downstream.

5. Do not use the valve to spread the flanges.

6. Instructions whether to use or to omit flange

gaskets are stated in the Maintenance and

Installation Instructions.

Product designation

Mass

Identification

number of

notified body

Trim number

Nominal

diameter

Flange

compatibilty

(drilling)

Temperature

limit in °C

Max. permissible

working pressure

Body material

of construction

Year of construction/JOB number

Tagplate

7. In case the valve is used as spool piece

during erection of piping, do not finish weld

the flanges to the pipes with the valve bolted

between the flanges as this will result in

serious heat-damage to the seat.

8. Valve operation should be checked for

open - close positions. The disc should have

enough clearance from the pipeline in all

positions.

9. In case of CompoSeal valves:

a. Do not overtighten the flange screws.

See the specific Installation and

Maintenance Instructions for maximum

allowable bolting torque.

b. Do not use CompoSeal valves in area’s

sensitive to earthquakes.

VCOSI-00754-EN 15/07

REPAIR

WARNING

The line must be depressurized before carrying

out any repairs to the valve. In case of dangerous

pipeline fluids, the pipeline should be drained

and flushed with an appropriate cleaning fluid.

Failure to do so may cause serious personal

injury and/or equipment damage. Before

disassembling the valve ensure the valve has

been decontaminated correctly from any harmful

gasses or liquids and that it is within a safe

temperature range for handling. Personnel

making any adjustments to the valves should

utilize suitable equipment. All required personal

protection means should be worn. Only qualified

personnel trained in all aspects of manual and

mechanical handling techniques must carry

out lifting and handling of valves. Use Keystone

original spare parts only. For detailed information

on valve (dis)assembly and part replacement, refer

to the Maintenance and Installation Instructions.

KEYSTONE PED - OPERATING AND SAFETY INSTRUCTIONS

Resilient seated ButteRfly ValVes

MAINTENANCE

!! Read all warning labels fitted to the valve

before operation or maintenance !!

Check the valve’s functionality on a regular

basis.

No additional routine maintenance is required.

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