John Crane 5610 - User Manual

4610, 4615, 4620P, 5610, 5610D, 5610L, 5610P, 5610Q, 5610VL,
5610VQ, 5611, 5611L, 5611Q, 5615, 5615L, 5615Q, 5620, 5620D, 5620P,
5620VP, 5620V, 5625, 5625P, EZ-1, FFET, SB1, SB1A, SB2, SB2A, SBW
STANDARD CARTRIDGE SEALS
Installation, Operation & Maintenance Instructions
1
TYPE
1. Foreword
This instruction manual contains standard, generic data and should be
used with the seal family installation instructions. These instructions
must be read and applied whenever work is done on the seal and must be
kept available for future reference.
ATTENTION These instructions are for the installation and operation
of a seal as used in rotating equipment. The instructions
will help to avoid danger and increase reliability. The
information required may change with other types of
equipment or installation arrangements. This manual
must be read in conjunction with the instruction manuals
for both the pump and any ancillary equipment.
If the seal is to be used for an application other than that originally
intended or outside the recommended performance limits, John Crane
must be contacted before its installation and use.
Any warranty may be affected by improper handling, installation or use
of this seal. Contact John Crane for information as to exclusive product
warranty and limitations of liability
If questions or problems arise, contact your local John Crane
representative or the original equipment manufacturer, as appropriate.
ATTENTION John Crane mechanical seals are precision products and
must be handled appropriately. Take particular care to
avoid damage to lapped sealing faces and to flexible
sealing rings. Do not excessively compress the seal
before or during installation.
2. Safety
2.1 Warning symbols
The following designations are used in the installation instructions to
highlight instructions of particular importance.
Danger
Mandatory instructions designed to prevent personal
injury or extensive damage.
ATTENTION Special instructions or information to avoid damage to the
system or its surroundings.
NOTE Information for easy installation and efficient operation.
Environmental note
2.2 Safety instructions
ATTENTION
1. Installation, removal and maintenance of the seal must be carried
out only by qualified personnel who have read and understood these
installation instructions.
2. The seal is designed exclusively for sealing rotating shafts. The
manufacturer cannot be held liable for use of the seal for purposes
other than this.
3. The seal must only be used in technically perfect condition, and
must be operated within the recommended performance limits in
accordance with its designated use and the instructions set out in
these instructions.
4. If the pumped fluid is hazardous or toxic, appropriate precautions must
be taken to ensure that any seal leakage is adequately contained.
Further information on sealing hazardous or toxic fluids should be
obtained from John Crane prior to seal installation.
5. Fluorocarbon components should never be burned or incinerated as the
fumes and residues are highly toxic. If fluorocarbons are accidentally
heated above 400°C/750°F, they can decompose. Protective gloves
should be worn as hydrofluoric acid may be present.
6. PTFE components should never be burned or incinerated as the fumes
are highly toxic.
2.3 Environmental aspects
2.3.1 Company policy extract
“It is the policy of John Crane to manage its business activities in
an environmentally responsible manner, comply with all relevant
laws and regulations, prevent pollution, and continually improve
its environmental performance, certification to the latest issue of
ISO 14001 ensures compliance.”
John Crane adopts the ‘Design For the Environment’ (DFE)
principle in making this product. Using this product will benefit
the environment directly by:
•
Reducing waste of precious resources through decreasing
the risk of leakage and minimizing energy consumption
•
Preventing pollution through controlling harmful emissions
to the atmosphere and ground contamination
•
Preserving valuable materials through the use of high
quality durable materials.
2.3.2 Recycling
Product refurbishment
This product has been designed for long life.
Disposal
When the product is considered to be beyond economical repair and
potential reuse, it should be disposed of by environmentally beneficial
means. The product can be disassembled with ease.
Scrapped components
These should be handled with extra care due to possible contamination.
They should be recycled through local industrial recycling plants.
Packaging
All packaging materials used are made from recyclable, environmentally
friendly materials.
When in doubt or for further information and advice on this subject,
please consult John Crane.
3. Hazardous Environments
Every working practice which compromises safety must
be avoided.

Summary

Safety Information

2.1 Warning Symbols

Designations used to highlight instructions of particular importance.

2.2 Safety Instructions

Mandatory instructions for safe installation, operation, and maintenance.

Hazardous Environments Precautions

Seal Installation and Pre-Start Procedures

6. Seal Installation

Instructions for proper seal installation.

7. Before Starting the Equipment

Verify alignment, tightening, rotation, piping, and liquid fill before starting.

Maintenance Procedures

8. Maintenance

Periodically inspect seals for emissions and replace when unacceptable.

Shaft Movement Precautions

Avoid axial shaft movement that may damage the seal during installation.

8.1 Decommissioning the Equipment

Procedure for safely decommissioning equipment before maintenance.

8.2 Removing the Seal

Instructions for careful removal of the seal for potential reconditioning.

Quality Assurance and Piping Plans

10. Mechanical Seal Piping Plans

Guidance on piping arrangements for optimal seal operation.

Introduction and Key Precautions

Process Fluid Safety Precautions

Precautions for containing emissions of toxic or hazardous process fluids.

Operating and Handling Precautions

Adhere to operating limits and handle seals carefully.

Machine Checking and Installation Steps

Fitting Tolerances

Check machine cleanliness and fitting tolerances before seal installation.

Shaft Lubrication and Cartridge Placement

Lubricate shaft and slide cartridge onto shaft until barrier ports align.

Gland Plate and Shaft Locking

Fit gland plate fasteners and tighten set screws to secure the shaft axially.

Ensuring Free Rotation

Turn shaft by hand to ensure free rotation with no shaft binding.

Piping and Venting Procedures

Complete piping, plug unused ports, and vent seal chamber before operation.

Dual Seal Liquid Filling

Ensure dual seal lubrication system is correctly filled with suitable liquid.

Seal Cross Section Identification

Type 5610 Component Identification

Diagram identifying components of the Type 5610 mechanical seal.

Type 5620 Component Identification

Diagram identifying components of the Type 5620 mechanical seal.

Series Gland Installation Guide

Piping Connections Identification

Explanation of gland plate port markings and standard pipework connections.

Gland Plate Types and Connections

Pipework and Plug Handling

Thermosiphon System Piping Guide

Plan 52: Dual Unpressurized Arrangement

Plan 53 A: Dual Pressurized Arrangement

Overview

This document describes the installation, operation, and maintenance of John Crane Standard Cartridge Seals, specifically covering models 4610, 4615, 4620P, 5610, 5610D, 5610L, 5610P, 5610Q, 5610VL, 5610VQ, 5611, 5611L, 5611Q, 5615, 5615L, 5615Q, 5620, 5620D, 5620P, 5620VP, 5620V, 5625, 5625P, EZ-1, FFET, SB1, SB1A, SB2, SB2A, and SBW. These mechanical seals are precision products designed for use in rotating equipment to minimize process fluid emissions.

The primary function of these seals is to provide a reliable sealing solution for rotating shafts, preventing leakage of process fluids to the atmosphere or ground. They are engineered to operate in various conditions, including those involving hazardous or toxic fluids, requiring appropriate precautions for containment. The design emphasizes long life and environmental responsibility, aiming to reduce waste, prevent pollution, and preserve valuable materials through the use of high-quality, durable components.

For proper usage, it is crucial to adhere to the installation instructions meticulously. The seal must only be used in technically perfect condition and operated within its recommended performance limits. Any deviation from the intended application or performance limits requires consultation with John Crane. Before installation, the machine must be checked for proper alignment of the driver or motor, and all gland plate nuts/bolts and screws must be securely tightened. Setting spacers, if present, must be removed after the seal is in its final working position and the drive collar socket set screws are tightened. The shaft should rotate freely by hand.

Piping and connections, especially for seal recirculation/flush, heating, or cooling requirements, must be correctly installed and unused ports safely plugged. For liquid lubricated seals, proper venting of the seal chamber and adequate liquid lubrication are essential to prevent overheating, scoring, and reduced seal life. Dry running or operation without adequate liquid lubrication can lead to squealing noises and damage.

Maintenance of these seals primarily involves periodic visual external inspection to monitor emission levels. As no maintenance is possible while installed, the seal should be replaced when emissions become unacceptable. It is recommended to keep a spare seal in inventory for immediate replacement. When decommissioning equipment, it must be made safe by isolating the driver, releasing pressure, draining liquids, venting gases, and removing chemicals. If the machine has handled toxic or hazardous fluids, thorough decontamination is mandatory before commencing work, as fluid can remain trapped within the seal chamber.

When removing the seal, care should be taken as it may be suitable for reconditioning. For cartridge seals, setting spacers must be refitted before removal. After removal, mechanical seals should always be serviced. John Crane strongly recommends returning used seals for rebuilding to as-new specifications, especially for non-contacting gas seals, to maximize reliability and minimize safety risks. Only genuine John Crane spare parts should be used for reconditioning.

Environmental aspects are a key consideration in the product's design. John Crane adheres to a "Design For the Environment" (DFE) principle, aiming to reduce waste, prevent pollution, and preserve materials. Fluorocarbon and PTFE components, if present, must never be burned or incinerated due to the highly toxic fumes and residues produced. If fluorocarbons are accidentally heated above 400°C/750°F, protective gloves should be worn as hydrofluoric acid may be present. Scrapped components should be handled with extra care due to potential contamination and recycled through local industrial recycling plants. All packaging materials are recyclable and environmentally friendly.

The installation process involves checking machine tolerances, lubricating the shaft, sliding the cartridge onto the shaft, positioning the barrier inlet ports, ensuring the gland plate sealing ring is in place, fitting and tightening gland plate fasteners, locking the shaft axially, and tightening drive collar socket set screws. Setting clips or spacers must be removed and stored for future use. Proper piping for flush, quench, and barrier liquids is critical, with specific plans provided for single and dual seals on horizontal and vertical shafts, as well as for hot processes and thermosiphon systems. Thorough venting of the seal faces is essential for long seal life, particularly for liquid lubricated seals.

The manual also provides guidance on fitting lubricants, emphasizing the use of lubricants compatible with the machine, ancillary equipment, and sealed product, applied sparingly. Socket set screw tightening torques are specified for different seal series and screw sizes to ensure correct assembly. Overall, the John Crane Standard Cartridge Seals are designed for safe and reliable operation when installed and maintained according to these comprehensive instructions, ensuring optimal performance and environmental responsibility.

John Crane 5610 Specifications

General

Model	5610
Series	5600
Type	Cartridge Seal
Seal Face Materials	Silicon Carbide, Tungsten Carbide, Carbon
Secondary Sealing Element	O-Ring, Gasket
Elastomer Materials	FKM, EPDM
Metal Components	316 Stainless Steel
Temperature Range	-40°C to 205°C (-40°F to 400°F)