Pentair 221, 222 Installation Manual

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Page 1

Keystone Figure 221/222 Butterfly Valve

Flow Control

Installation and Operating Instructions

Before installation or maintenance, these instructions

must be fully read and understood.

Please read these instructions carefully.

This symbol indicates important messages and safety instructions.

Potentially dangerous practices:

disregarding instructions.

•

• improper use of product.

• use of insufficiently qualified personnel.

Application pressure/temperature must not be higher than the pressure/ temperature limits shown on the technical data sheet.

Introduction

The Keystone Figure 221/222 is a rubber lined butterfly valve which has a maximum working pressure of 250 psi over a temperature range of -20°F to +250°F, depending on seat material. The Figure 221/222 utilizes a molded seat design.

Flange and pipeline compatibility

Keystone butterfly valves are designed for installation between ANSI Class 125/150 flat or raised faced flanges. Gaskets are not required. Lined pipe, heavy wall pipe or flanges must have a minimum allowable inside diameter at the centered body face to clear the disc sealing edge when opening the valve.

Weld neck flanges (flange ID approximates flange bore) are recommended to ensure maximum valve performance; however, slip-on flanges may be used.

Do not weld near the valve, as this will result in serious damage to the valve.

Safety related information

1. If in any doubt regarding any aspect of Figure 221/222 valves, contact your local Tyco Flow Control sales office for guidance.

2. Only use properly qualified personnel for installation.

3. Ensure that the pipeline is fully drained or vented before removing the valve from the pipeline.

4. Use appropriate protective equipment/clothing, such as goggles, safety shoes, industrial gloves.

5. This product is not intended for use in areas where external fire is a potential hazard.

6. The piping design must take into account the following factors and any other factors which are not listed here, but known to be relevant to the safe operation of the installation.

6.1. Valve weights which are shown in the technical data sheet.

mation of condensate in gas pipelines.

6.2. For

6.3. Elimination of turbulence and vortex potential at the valve.

6.4. Pipeline vibrations.

6.5. The piping design should preclude the occurrence of water hammer at the valve.

7. The valve design has not taken into account earthquake loading or traffic vibration.

The nor

mal shelf life of the Figure 221/222 valve seat is 5 years under clean, dry

ambient and conditions without UV exposure prior to installation.

9. Tighten all flange bolts as per the nominated flange standards using the diagonal sequence method.

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Page 2

Keystone Figure 221/222 Butterfly Valve

Installation and Operating Instructions

Installation Instructions

Installation in pipeline

Figure 221/222 valves are bi-directional and there is no need to identify upstream and down stream orientation. These valves can be installed in vertical or horizontal pipelines and any intermediate orientation.

There is no restriction on the valve stem position (vertical, horizontal or oblique), although for slurry service and media, which have a tendency to deposit sediment, the recommended installation position is with the stem horizontal and the lower disc edge opening downstream.

Do not use flange gaskets or sealing compounds. The Keystone seat face design eliminates the need for gaskets.

Flow

pen

Maintenance

Routine maintenance or lubrication are not required.

Installation in an existing system

Consideration should be given to the location of the valves in t he piping system. The valve

1. should not be placed too close to other valves, elbows, etc. as its performance may be affected. It is recommended that the valve have a minimum of six pipe diameters upstream and four pipe diameters downstream between it and other valves, elbows, etc. in the piping system.

2. Ensure that the flanges are clean, undamaged and compatible with the valve.

3. Check that the gap between the flanges can accommodate the valve face to face dimension.

4. Spread the flanges using suitable tooling such as flange spreaders to enable ease of insertion of the valve between the flanges.

Warning: Do not use the valve as a lever.

5. Open the valve until the disc is free of the seat but still within the valve body (about 5° open).

6. Loosely insert two or more flange bolts through the holes in the lower part of the flanges to help support the valve.

7. Carefully slide the valve between the flanges, center the valve body with the pipeline axis, and insert the remaining flange bolts.

8. Open the valve fully, checking that the disc edge does not interfere with the pipeline bore.

9. Remove any flange spreaders that have been used and at the same time tighten the flange bolts “hand tight”. Ensure that the valve remains centered to the pipeline axis by slowly closing the valve (clockwise rotation of the disc stem) to check that adequate clearance has been maintained between the disc edge and the pipeline bor

10. Re-open the valve (counter clockwise rotation of the disc stem) and tighten all flange bolts as per flange standar

Operate the valve to the desir

11.

ds using the diagonal sequence method.

ed position.

Preferred Mounting

Existing system

1. Spread the flanges with the adequate tooling. Insert some flange bolts to bear the valve

Open the valve and remove the flange

eads.

spr

Close the valve clockwise, r

3. position and cross-tighten all bolting.

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eturn to open

Page 3

Keystone Figure 221/222 Butterfly Valve

Installation and Operating Instructions

New system

1. Center a flange-valve-flange assembly between the pipes.

2. Tack weld the flanges to the pipes.

Installation in a new system

It is common practice to use the valve to help in alignment of the flanges prior to welding the flanges into the pipeline. In such cases, the following instruction applies:

1. Align both mating flanges with the valve center line and secure in position using the flange bolts.

2. Position the flange/valve/flange assembly in the pipeline.

3. Tack weld the flanges to the pipeline.

4. Remove the flange bolts and the valve.

5. Finish weld the flanges to the pipeline and allow to cool fully.

. Follow the procedure for installation in an existing system.

Warning: Do not finish weld the flanges to the pipeline with the valve still assembled to the flanges as this will result in serious damage to the valve seat.

3. Remove the valve and finish weld. Install the valve according to the procedure in the left column.

arts

Item No. Part Number Quantity

Body

1 2 Bearing 2 3

Seat

1 4 Disc 1 5

Stem

1 6 Spacer 2 7 Packing 1 8 Bushing 1 9 Torque plug 1

Body plug

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Page 4

Keystone Figure 221/222 Butterfly Valve

Installation and Operating Instructionss

Troubleshooting

Symptom Probable Cause Solution

Valve opens only a few degrees and stops (it will not open to the f

ull angle desired).

Leakage past the flange face.

Leakage in the closed position (leakage in the pipeline).

Excessively high torque.

Improper installation. The valve is improperly aligned.

1. Flange bolts are not evenly torqued.

2. Improper flanges.

The disc is not closing fully:

1. Actuator is not properly adjusted.

Line pressure exceeds the valve’s

2. working pressure.

1. Obstruction in the pipeline.

2. Scale build-up on stem or seat.

Loosen the flange bolts, re-align the valve with flanges, and re-tighten the flange bolts to correct torque per ANSI requirements.

. Loosen the flange bolts and tighten the

flange bolts to the correct torque per ANSI requirements.

2. Refer to “Flange and pipeline compatibility” on page 1.

1. Refer to actuator adjustment procedures.

2. Reduce line pressure to the valve’s working pressure.

1. Remove valve from pipeline and remove obstruction.

3. Open and close the valve several times. Operate the valve at least once a month. Check the valve seat for deterioration.

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ut makes no representation as to its comprehensiveness or accuracy. This IOM is intended only as a guide to TFC products and services.

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T Individuals using this IOM m NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT KIND OR NA P

TURE, INCLUDING INCIDENT

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atents and P

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ercise their independent judgment in e

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TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT(S) TO WHICH THE INFORMATION REFERS. ACCORDINGLY, TFC WILL NOT BE RESPONSIBLE FOR DAMAGES (OF ANY

ending in the U

2008

AL, INDIRECT

and foreign countries. Tyco reserves the right to change product designs and specifications without notice.

mation herein in good f

aith b

aluating product selection and deter

, OR CONSEQUENTIAL DAMAGES) RESULTING FROM THE USE OF OR RELIANCE UPON THIS INFORMATION.

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mining product appropr

or their particular purpose and system requirements. TFC MAKES

iateness f