Emerson 903 Manuale utente

Installation, Operation

and Maintenance Manual

Handwheel Operated Valves (903, 913, 963)

Designed and Manufactured by ITT

IOM.HWO.ASCO.en-US.2017-11

Table of Contents

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual 1

Table of Contents

Introduction and Safety .......................................................................................................... 2

Safety message levels ............................................................................................................ 2

User health and safety ............................................................................................................ 2

Transportation and storage .................................................................................................... 4

Handling and unpacking guidelines ........................................................................................ 4

Storage, disposal, and return requirements ............................................................................ 4

Product Description ................................................................................................................ 5

Topworks identification ........................................................................................................... 5

Bonnet description .................................................................................................................. 5

Valve diaphragm identification ................................................................................................ 5

Installation ............................................................................................................................... 7

Install the valve and topworks ................................................................................................. 7

Tighten the bonnet fasteners .................................................................................................. 7

Fastener torque table for valve body to topworks ................................................................. 8

the travel stop ......................................................................................................................... 9

Operation ............................................................................................................................... 10

Topworks operation .............................................................................................................. 10

Operate the Adjustable Open Stop ....................................................................................... 10

Maintenance ........................................................................................................................... 12

Precautions ........................................................................................................................... 12

Inspection ............................................................................................................................. 12

Lubrication requirements ...................................................................................................... 12

Disassemble the valve .......................................................................................................... 12

Replace the valve diaphragm ................................................................................................ 13

Change the diaphragm type .................................................................................................. 14

Replace the o-rings ............................................................................................................... 15

Parts Listing and Cross-Sectional Drawings ...................................................................... 17

963 PAS plastic bonnet ......................................................................................................... 17

Designed and Manufactured by ITT

Introduction and Safety

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual2

Introduction and Safety

Safety message levels

Definitions

Safety message level Indication

DANGER: A hazardous situation which, if not avoided, will

result in death or serious injury

WARNING: A hazardous situation which, if not avoided,

could result in death or serious injury

CAUTION: A hazardous situation which, if not avoided,

could result in minor or moderate injury

Electrical Hazard: The possibility of electrical risks if instructions

are not followed in a proper manner

NOTICE: • A potential situation which, if not avoided,

could result in an undesirable result or

state

• A practice not related to personal injury

User health and safety

General precautions

This product is designed and manufactured using good workmanship and materials, and meets

all applicable industry standards. This product should be used only as recommended by ITT or

ASCO.

WARNING:

• Misapplication of the valve can result in injury or property damage. Select valves and valve

components of the proper materials and make sure that they are consistent with your

specific performance requirements. Incorrect application of this product includes but is not

limited to:

• Exceeding the pressure or temperature rating

• Failing to maintain this product according to the recommendations

• Using this product to contain or control media that is incompatible with the materials of

construction

• Proper containment or protection from hazardous media must be provided by the end

user to protect employees and the environment from valve discharge.

• If the product exhibits any indication of leakage, do not operate. Isolate the product and

either repair it or replace it as outlined within this manual.

Designed and Manufactured by ITT

Introduction and Safety

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual 3

Qualifications and training

The personnel responsible for the assembly, operation, inspection, and maintenance of the

valve must be appropriately qualified. The operating company must do the following tasks:

• Define the responsibilities and competency of all personnel handling this equipment.

• Provide instruction and training.

• Ensure that the contents of the operating instructions have been fully understood by the

personnel.

Instruction and training can be carried out by ASCO as the reseller of the valve by order of the

manufacturer.

Non-compliance risks

Failure to comply with all safety precautions can result in the following conditions:

• Death or serious injury due to electrical, mechanical, and chemical influences

• Environmental damage due to the leakage of dangerous materials

• Product damage

• Property damage

• Loss of all claims for damages

Operational safety precautions

Be aware of these safety precautions when operating this product:

• Do not leave hot or cold components of the product unsecured against contact if they are a

source of danger.

• Do not remove the contact guard for moving parts when the product is in operation. Never

operate the product without the contact guard installed.

• Do not hang items from the product. Any accessories must be firmly or permanently

attached.

• Do not use the product as a step or hand hold.

• Do not paint over the identification tag, warnings, notices, or other identification marks

associated with the product.

Maintenance safety precautions

Be aware of these safety precautions when performing maintenance on this product:

• You must decontaminate the product if it has been exposed to harmful substances such as

caustic chemicals.

Use of unauthorized parts

Reconstruction or modification of the product is only permissible after consultation with ITT.

Genuine spare parts and accessories authorized by ITT serve to maintain safety. Use of non-

genuine ITT parts can annul liability of the manufacturer for the consequences. ITT parts are

not to be used in conjunction with products not supplied by ITT as this improper use can annul

all liability for the consequences.

Unacceptable modes of operation

The operational reliability of this product is only guaranteed when it is used as designated. The

operating limits given on the identification tag and in the data sheet may not be exceeded under

any circumstances. If the identification tag is missing or worn, contact ASCO for specific

instructions.

Do not use "cheater bars" to operate manual valves. Damage to the valve or personal injury

could result.

Designed and Manufactured by ITT

Transportation and storage

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual4

Transportation and storage

Handling and unpacking guidelines

CAUTION:

Always observe the applicable standards and regulations regarding the prevention of

accidents when handling the product.

Handling guidelines

Follow these guidelines when handling the product to prevent damage:

• Use care when handling the product.

• Leave protective caps and covers on the product until installation.

Unpacking guidelines

Follow these guidelines when unpacking the product:

1. Inspect the package for damaged or missing items upon delivery.

2. Note any damaged or missing items on the receipt and freight bill.

3. Do not lift or pull on the electrical conduit lines. Doing so may cause the POC switches to

come out of calibration.

Storage, disposal, and return requirements

Storage If you are not immediately installing the product after delivery, store it as follows:

• Store the product in a dry room that maintains a constant temperature.

• Make sure that the products are not stacked on top of one another.

Disposal Dispose of this product and associated components in compliance with federal, state, and local

regulations.

Return Ensure these requirements are met before you return a product to ASCO:

• Contact ASCO for specific instructions on how to return the product.

• Clean the valve of all hazardous material.

• Complete a Material Safety Data Sheet or Process Data Sheet for any process fluid that

could remain on the valve.

• Obtain a Return Material Authorization from the factory.

Designed and Manufactured by ITT

Product Description

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual 5

Product Description

Topworks identification

Model number

Code Description

903 Cast iron bonnet with rising stem and travel stop

903S Cast iron sealed bonnet with rising stem and travel stop

913 Stainless steel bonnet with rising stem and travel stop

913S Stainless steel sealed bonnet with rising stem and travel stop

963 PAS plastic bonnet with rising handwheel and travel stop

963S PAS plastic sealed bonnet with rising handwheel and travel stop

Bonnet description

Non-Sealed bonnetThe non-sealed bonnet has a weep hole that indicates a diaphragm failure by allowing process

fluid that accumulates in the bonnet to pass through the hole.

Sealed bonnet The sealed bonnet uses a special “V-notch” vent plug, which permits leak detection.

Figure 1: Weep hole and V-notch vent plug

Valve diaphragm identification

Diaphragm tab codes

All diaphragm materials and physical properties are batch traceable via permanent codes

molded into the diaphragm tabs. The molding date, grade of diaphragm, and size provide

traceability to original batch records.

Designed and Manufactured by ITT

Product Description

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual6

1. Date code

2. Supplier code

Figure 2: Elastomer diaphragm front

1. Valve size

2. Grade of diaphragm

Figure 3: Elastomer diaphragm back

1. Material code

2. Date code

Figure 4: PTFE diaphragm

Designed and Manufactured by ITT

Installation

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual 7

Installation

Install the valve and topworks

NOTICE:

The topworks size and configuration can limit the actual operating pressure. Consult the Pure-

Flo catalog for pressure limitations. Consult the factory or engineering catalog for vacuum

operation.

1. If you have a weld end valve, then consider the following:

If you are welding ... Then ...

Manually Remove the topworks.

Remove the diaphragm.

In line for schedule 10

or heavier pipe Remove the topworks.

Remove the diaphragm.

In line for schedule 5

or lighter pipe and tub-

ing

You can weld with automatic equipment. Before you perform the weld:

1. Remove the topworks (optional).

2. If left installed, set the valve to the open position.

3. Properly purge the valve with an inert gas.

2. Install the valve.

Install with the raised hash marks (castings) or small machined dots (forgings) on the valve

body at the 12 o'clock position to achieve the optimum drain angle.

3. Prior to pressurization (with the valve slightly open), tighten the bonnet fasteners.

For more information, see Tighten the bonnet fasteners (page 7).

4. Cycle the valve two to three times to verify smooth operation.

5. Set the travel stop.

For more information, see the travel stop (page 9).

Tighten the bonnet fasteners

CAUTION:

Do not tighten fasteners while the system is pressurized or at elevated temperatures (greater

than 38°C | 100°F).

1. Depressurize the system.

2. Position diaphragm so that valve is slightly open.

For valves with an actuator, you may need to use regulated air pressure to actuate the

valve.

3. Tighten the bonnet fasteners in a crisscross pattern.

For more information, see Fastener torque table for valve body to topworks (page 8).

Designed and Manufactured by ITT

Installation

Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual8

4. Make multiple crisscross passes to build up torque to the final table value. Make additional

crisscross passes using final table values to evenly tighten each fastener to within 5% of

torque value.

5. Retighten the bonnet fasteners as noted above at ambient conditions after the system has

cycled through operating pressure and temperature.

6. Monitor the valve for leakage:

If leakage ... Then ...

Occurs at the body/bonnet flange

sealing area Depressurize the system and retighten the bonnet fasteners as

noted above.

Continues Depressurize the system and retighten the bonnet fasteners as

noted above. (maximum 3rd re-torque)

Continues Replace the valve diaphragm.

For more information, see Replace the valve diaphragm (page 13).

Fastener torque table for valve body to topworks

Table 1: PAS bonnet (963)

Values given are for lubricated fasteners.

Valve size, inches (DN) PTFE diaphragm Elastomer diaphragm

Inches DN in-lb N-m in-lb N-m

0.50 15 20-50 2.3-5.7 20-40 2.3-4.5

0.75 20 40-70 4.5-7.9 20-50 2.3-5.7

1.00 25 45-80 5.1-9.1 25-70 2.8-7.9

1.50 40 145-170 16-19 75-130 8.5-14.7

2.00 50 225-275 25-31 100-180 11-20

2.50 65 500-830 57-94 300-420 34-48

3.00 80 500-830 57-94 300-420 34-48

4.00 100 200-575 23-65 180-220 20-25

Table 2: Metal bonnet (903, 913)

Values given are for lubricated fasteners.

Valve size PTFE diaphragm Elastomer diaphragm

Inch DN in-lb N-m in-lb N-m

0.50 15 25-80 2.8-9.1 20-40 2.3-4.5

0.75 20 50-80 5.7-9.1 20-50 2.3-5.7

1.00 25 65-120 7.4-13.6 45-70 5.1-7.9

1.25 and 1.50 32 and 40 200-225 23-25 75-130 8.5-14.7

2.00 50 225-300 25-34 100-180 11-20

2.50 65 750-1000 85-113 300-420 34-48

3.00 80 750-1000 85-113 300-420 34-48

4.00 100 540-600 61-68 190-230 22-26

NOTICE:

1. Make multiple criss-cross passes to build up torque to final table values. Make additional

criss-cross passes using table vales to evenly tighten each bolt to within 5% of stated

torque.

2. Values given are for lubricated fasteners.

3. Minimum values given will provide longer diaphragm cycle life for valves in non-autoclave

and low thermal cycle conditions.

4. Maximum values given will be required for autoclave conditions and for high thermal cycle

conditions.

5. Torques should be applied at or near ambient conditions <38°C |100°F.

Designed and Manufactured by ITT

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