Emerson Crosby J Series Installation, Operation And Maintenance Manual

CROSBY J SERIES PRESSURE RELIEF VALVE WITH FISHER™ 4320 WIRELESS POSITION MONITOR

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

Before installation, these instructions must be carefully read and understood.

1 INTRODUCTION

TABLE OF CONTENTS

1. Introduction ...................................................1

1.1 General .....................................................1

1.2 Scope ........................................................1

1.3 Safety Precautions ..................................2

2. Calibration Procedure ...................................2

2.1 Magnetic sensor size selection ..............2

2.2 Calibration ...............................................3

3. Mounting Fisher 4320 to the

J- Series Valve ...............................................6

3.1 Installation ...............................................6

3.2 Bracket Kits .............................................7

4. Selection Tables ..............................................8

1.1 General

NOTICE

Refer to Fisher 4320 wireless position monitor instruction manual for any difficulties with device or calibration.

The Fisher 4320 Wireless Position Monitor is used to monitor the lift of a Crosby J Series Bellows Pressure Relief Valve. This data can be wirelessly transmitted to a control station. The Fisher 4320 wireless position monitor is a true linkage-less non-contacting wireless position transmitter and limit switch. It is a rugged measurement device that provides a precise wireless feedback signal to indicate equipment position with a percent (%) of span plus on/off indication. It is designed to be simple to use, compact, and easily mounted. The wireless position monitor periodically reads the position of a measured device and transmits that data over a wireless network.

1.2 Scope

Calibration of 4320 could be performed before mounting to the Pressure Relief Valve by using a calibration device that simulates the mounting of the 4320 and the magnet sensor, one can easily calibrate the 4320 by moving the magnetic sensor. For the large T orifice JLT-JBS-E, requires a calibration device simulator due to the length of stroke. Calibration could be also performed during mounting to the pressure relief valve by using calibration plate Emerson provides. This procedure provides the calibration methods during mounting 4320 to Crosby J Series Bellows Pressure relief valve only.

1.3 Safety Precautions

The protection and safety of equipment, property and personnel depends on the proper operation of the pressure relief valves described in this manual. All Emerson pressure relief valves should be kept in proper working condition in accordance with the manufacturer’s written instructions. Periodic testing and maintenance by the user of this equipment is essential for reliable and safe valve operation. All installation, maintenance, adjustment, repair and testing performed on pressure relief valves should be done by qualified technicians having the necessary skills and training adequate to perform such work. All applicable Codes and Standards, governing regulations and authorities should be adhered to when performing pressure relief valve repair. No repair, assembly, adjustment or testing performed by other than Emerson or its authorized assemblers and representatives shall be covered by the warranty extended by Emerson to its customers. The user should use only original, factory supplied OEM parts in any maintenance or repair activity involving this product.

SAFETY FIRST

To reduce the risk during installation:

• Comply with all information on the product, in this manual, and in any local and national codes that apply to this product.

• Do not allow untrained personnel to work with his product.

• Use Emerson parts and work procedures specified in this manual.

WARNING

The Crosby J Series valve must have a bellows when using this position monitor. Avoid personal injury from sudden release of process pressure. Failure to do so may result in injury to personnel or cause damage to the equipment.

CROSBY J SERIES PRESSURE RELIEF VALVE WITH FISHER™ 4320 WIRELESS POSITION MONITOR

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

WARNING

Sudden release of pressure may result if the valve assembly is installed where service conditions could exceed the limits on the appropriate nameplates. Never use this equipment for any purpose other than its intended use. This manual is provided as a general guide for the assembly or retrofit on the pressure relief valves described herein. It is not possible to describe all configurations or variations with such equipment. The user is advised to contact Emerson or its authorized assemblers and representatives for assistance in situations that are not adequately covered or described in this manual. Failure to do so may result in injury to personnel or cause damage to the equipment.

WARNING

Avoid personal injury from sudden release of process pressure. Before performing any maintenance operations:

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

• Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury.

• Adhere to all safety standards and best practices for operating the equipment.

• Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure on both sides of the valve. Drain the process media from both sides of the valve.

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

• The valve may contain process media that are pressurized, even when the valve has been removed from the process.

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

Failure to do so may result in injury to personnel or cause damage to the equipment.

The escape of process media indicates that the valve has NOT been properly vent, or process pressure is trapped in the valve body. Check with your process or safety engineer for any additional measures that must be taken to protect against process media. Never attempt to remove the pressure relief valve from a system that is pressurized. Never adjust or perform maintenance on the pressure relief valve while in service unless the valve is isolated from the system pressure. If not properly isolated from the system pressure, the pressure relief valve may inadvertently open resulting in serious injury. Remove the pressure relief valve prior to performing any pressure testing of the system.

CAUTION

When the pressure relief valve is under pressure never place any part of your body near to the outlet/exhaust of the valve. Failure to do so may result in injury to personnel or cause damage to the equipment.

CAUTION

This product is intended for a specific temperature range and other application specifications. Failure to adhere to these specifications could result in the malfunction of the product, property damage, or personal injury.

WARNING

If the process media starts to escape from the valve or pilot, stop immediately! Failure to do so may result in injury to personnel or cause damage to the equipment.

The safety of lives and property often depends on the proper operation of the pressure relief valve. The valve must be maintained according to appropriate instructions and must be periodically tested and reconditioned to ensure correct function.

WARNING

Use only genuine Emerson replacement parts. Components that are not supplied by Emerson should not, under any circumstances, be used. Use of components not supplied by Emerson may void your warranty, might adversely affect the performance of the instrument and could cause personal injury or property damage. Failure to do so may result in injury to personnel or cause damage to the equipment.

NOTICE

Contact your Emerson sales office for replacement parts.

Before installation, the Installation and Operational Safety Instructions should be fully read and understood. These Instructions may be requested from the factory or are available at Emerson.com.

2 CALIBRATION PROCEDURE

CAUTION

When the pressure relief valve is under pressure never place any part of your body near to the outlet/exhaust of the valve. Never use this equipment for any purpose other than its intended use. Failure to do so may result in injury to personnel or cause damage to the equipment.

2.1 Magnetic Sensor Size Selection

To achieve an accurate valve position, the correct magnet size must be selected. Refer to Table 1 for selection.

CAUTION

The magnet material has been specifically chosen to provide a long-term stable magnetic field. However, as with any magnet, care must be taken when handling the magnet assembly. Another high-powered magnet placed in close proximity (less than 25 mm) can cause permanent damage. Potential sources of damaging equipment include, but are not limited to: transformers, dc motors, stacking magnet assemblies. Failure to do so may result in equipment mal function.

Tip: As a general rule, do not use less than 50% of the magnet assembly for full travel measurement. Performance will decrease as the assembly is increasingly subranged. The linear magnet assemblies have a valid travel range indicated by arrows molded into the piece. This means that the hall sensor (on the back of the 4320 housing) has to remain within this range throughout the entire valve travel. The linear magnet assemblies are symmetrical. Either end may be up.

CROSBY J SERIES PRESSURE RELIEF VALVE WITH FISHER™ 4320 WIRELESS POSITION MONITOR

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

2.2 Calibration

Mounting the Fisher 4320 Wireless Position Monitor

1. Install a battery into the Fisher 4320

Wireless Position Monitor.

WARNING

Due to the combustible nature of the lithium content, the power module has special installation, operation, storage, and/or shipping requirements. Observe all warnings included with the power module before installing, operating, storing, or shipping the 4320 Position monitor. Failure to do so may result in personal injury or property damage from fire or explosion.

CAUTION

When installing components, proper means of electrostatic discharge protection is required. Failure to use a grounding strap, or other means of electrostatic discharge protection can result in damage to the electronics.

CAUTION

To avoid static discharge do not rub or clean the antenna with solvents. Failure to do so may result in personal injury or property damage from fire or explosion.

8. Loosen the Screws on 4320 Bracket and line up the mark on the back of 4320 with the top mark on the magnet. Lock 4320 in place on Bracket with quantity of 4, M6 x 10mm HEX CAP Screws and Lock Washers with Torque force listed in Table 2, Location 2. Center the magnet assembly inside the 4320 slot by slightly adjusting the magnet bracket, if it is needed. This represents the “0% position”, valve closed.

CAUTION

Do not install a magnet assembly that is shorter than the physical travel of the valve. Loss of control will result from the magnet assembly moving outside the range of the index mark in the feedback slot of the 4320 housing. Failure to do so may result in personal injury or property damage.

FIGURE 2-1 4320 and Bracket Assembly

FIGURE 2-2 Magnet Alignment

2. Mount the 4320 to the bracket and lightly tighten screws enough to hold in place. The screws will be tightened once calibration step is complete.

3. Mount the calibration plate and bracket on the pressure relief valve bonnet as shown on Figure 2-2.

WARNING

4. Slide the Polytetrafluoroethylene (PTFE) bushing sleeve on the magnet bracket. The PTFE open slot should face in down direction.

5. Secure the Magnet in place under the bend in the Magnet Bracket with 2 screws and lock washers provided with Magnet. Torque force listed in Table 2, Location 1.

6. Position the magnet bracket assembly to the valve stem at the dimension “A” shown in Table 1. Lock in place.

7. Verify dimension “A” by caliper or depth micrometer to ensure it is in the tolerance as shown in the Table 1.

FIGURE 2-3 Measurement for Dim A

FIGURE 2-4 Measurement for Dim A

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Emerson Crosby J Series Installation, Operation And Maintenance Manual

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