The complete cross reference for mechanical face seal replacement how to use this catalogue locate the manufacturer of the equipment. Read online mechanical seal repair and maintenance program book pdf free download link book now. If the seal faces are not flat and perpendicular to the shaft, then the seal will leak regardless of all other parameters. The purpose of the seal is to prevent leakage of pumped product from escaping to. A mechanical seal is simply a method of containing fluid within a vessel typically pumps, mixers, etc. Dec 10, 2014 possible causes of mechanical seal failures by william forsthoffer on december 10, 2014 to ensure reliable, troublefree operation for extended periods of time, the seal must operate in a properly controlled environment. Mechanical sealmechanical seal mechanical seal is a device used to achieve sealing of a rotating shaft of pump, compressor, mixing vessels at its entry or exit to the casing. Also, in case of any mechanical failure or physical damage of. The results indicated that over 90% lacked complete basic fundamentals of mechanical maintenance.
Also called the heart of the curve, it assures maximum centrifugal pump mtbf by avoiding all operating areas of hydraulic disturbances. Swagelok mechanical seal support systems api 682 solutions configured locally from the company you trust. Mechanical seals have been a source of failure of pumps in the oil industry. Installation, operation, and maintenance manual goulds pumps. When the sealing is achieved by means of a mechanical seal, the chamber is commonly referred to as a seal chamber. Mechanical seal repair and maintenance program pdf. Pdf unique failure mode for double mechanical seals api seal. However, it is also crucial to take note that improper mechanical seal maintenance can also lead to failure of the seal. Download mechanical seal repair and maintenance program book pdf free download link or read online here in pdf. Sealing systems for pumps sealing systems for pumps. Factors which led to this type of failure and the critical steps in seal maintenance practices will be discussed. Cartridge seal mounting assures ease of maintenance and precise seal face setting for maximum seal life. Thermoplastics have good ductility and formability. The powerseal mechanical seal repair program in many cases, the repair of the mechanical seal can be a feasible and economical option to replacing the seal with a new seal.
Centrifugal pump maintenance is important to keep it operational. All zm technologies engineered mechanical seals are waterless flushless, and are repairable for a fraction of the price of new. If the drill bit bindsin the material being drilled, whats the first action you should take. Mechanical seal technology and selection eagleburgmann. Mechanical seals come in a wide variety of configurations and manufacturers. After completing a recent training class, i had opportunity to ask our customer what were some of the highest cost failures they experienced. An essential mechanical seal contains three sealing points.
Possible causes of mechanical seal failures turbomachinery. This integral system was a technological advance that allowed manufacturers to take responsibility for the entire sealing system and not just the seal. Mechanical seal working animation types of mechanical seal. Project standard and specifications inspection of pump. It covers the various mechanical seal types and explains the mechanical seal working in detail. The seal flush plan is as equally critical and perhaps more so to help establish a reliable operating mechanical seal. Maintenancefree, compact cartridge labyrinth seals with long service life and best. To prevent the seals from failing, it is extremely crucial for them to undergo proper maintenance on a regular basis. Ensure that there are no leaks from the mechanical seal. Pdf mechanical maintenance of kiln systems evgeniy.
Jan 03, 2015 for optimum mechanical seal mtbfs, execute the following mechanical seal monitoring best practices. We now offer on site training in both public and private locations for mechanical seals and pumps. As a worldwide mechanical seals manufacturer we offer our maintenance and repair program, providing costeffective and reliable performance. Primary sealing takes place where the rotating and stationary faces are in. Model 3196 iframe installation, operation, and maintenance manual 5 introduction and safety introduction purpose of this manual the purpose of this manual is to provide necessary information for. Typical type 2100 seal arrangement type 2100 seal installation dimensions. Singleacting mechanical seals are designed with two seal rings with one interface and without any seal liquid chamber. After nearly six years of intensive work, the american petroleum institute api 682 mechanical seal standard is soon to be adopted. Model 3196 iframe installation, operation, and maintenance manual.
An api 682 guided seal selection tool is included along with details like seal. John crane is an american company, now a subsidiary of smiths group and provider of engineered products and services including mechanical seals, couplings, seal support systems, filtration systems and artificial lift. In order for mechanical seals perform extended time periods with low surfaces friction, is necessary good maintenance monitoring for hydrodynamic lubrication. The mechanical seal training course has been developed to assist in maintenance and operation. The dynamic sealing surface was incorporated into the seal assembly. Seal end view piping plan layout what, why, and where pump crosssection mechanical seal preventative maintenance viewed from drive end shows preferred gland connection orientation illustrated schematic of auxiliary components describes piping plans, their purpose, and typical applications simplified centrifugal.
We can help you save your maintenance costs, and guarantee reliable sealing solutions. Failure to observe the instructions contained in this manual could result in personal injury and. The mechanical seals course consists of four lessons designed for persons with a basic understanding of the operation and maintenance of pumps, agitators, and rotating equipment. For optimum mechanical seal mtbfs, execute the following mechanical seal monitoring best practices. The manufacturer listings are alphabetical, refer to pages 7. The lessons in this course train participants to work effectively with mechanical seals. When the sealing is achieved by means of packing, the chamber is referred to as a. The training course also includes an api682 guided seal selection tool and a troubleshooting guide. Mechanical maintenance entry test enabling objectives site maintenance training program page 2of 5 portable power tools describe the use of portable power tools. About esp esp offers a suite of products and services that are critical to.
Never put hands on lapped seal faces or put lapped seal parts face down on the workbench. Slide seal parts onto shaft in order according to the drawings in front of manual and any seal instructions at end of manual. With a lower k value, the safety against thermal overload will increase, but the mechanical seal may also lift off more easily. Recent design like dry mechanical seal will also be addressed. Seal chamber and stuffing box seal chamber and stuffing box both refer to a chamber, either integral with or separate from the pump case housing that forms the region between the shaft and casing where sealing media are installed. The reality is that most facilities have several pumps performing a variety of functions that are integral to the successful operation of the plant. Since its introduction in 1994, api 682 has become the standard that sets the global tone for the procurement and operation of seal and supply systems for centrifugal pumps in the oil and gas sector as well as in the petrochemical industry. In tandem mechanical seal the outer seal is flushed with a compatible fluid at lower pressure than the stuffing box pressure. The seal ring which rotates with the shaft is called the rotary ring.
Unlike an oring seal, the hydraulic diameter of a bellows seal is not a fixed geometric value. Slowly close delivery valve and shut down driving unit in accordance with manufacturers instructions. The functions, operation, and repair of common mechanical seals are demonstrated. Mechanical maintenance entry test enabling objectives site maintenance training program page 1of 5 safety industrial describe industrial and mechanical safety. Mechanical seals first in a series by ann attenasio. This type of mechanical seal has therefore to be operated either under dry conditions or must be lubricated and cooled by the liquid product. A typical seal system for a simple, single, mechanical seal is comprised of the seal, stuffing box throat bushing, liquid flush system, auxiliary seal and auxiliary flush or barrier fluid when required. The seal will not seal unless the seal faces are flat, smooth and perpendicular to the shaft, and remain so during operation. Collar and gland assemblies have builtin axial and radial setting clips that simplify and ensure installation accuracy. The initial closing force ensures that the seal will function properly from startup.
John crane mechanical seals and seatsmating rings are precision prod. Take particular care to avoid damage to lapped sealing faces and flexible sealing rings. To install a seal, the pump would have to be taken offline and disassembled. The course, designed with extensive graphics and animation, gives a virtual practical exposure on. General installation, operation, maintenance and troubleshooting manual for. Doing this created a series of lips with horizontal as well as vertical contact points.
The purpose of this document is to instruct to a responsible use on installation, operation and maintenance of pumps series cn sealm. Maintenance of mechanical seal 6 references appendix i selection of mechanical seals 16. There is a lot at stake when mechanical seals break down. Project standard and specifications inspection of pump seals. General installation, operation, maintenance and troubleshooting manual for three. If the exam covers spatial aptitude, youll get lots of practice solving that kind of problem as well. To combat the growing labor shortage and continual turnover in the maintenance industry, american seal and packing co now offers training in industrial pumps. Api standard 682 from the american petroleum institute provides various seal plan configurations, their advantages and disadvantages and a good description of each of the plans. Guidelines for predictive maintenance of mechanical seals. Adjust or replace the packing in the stuffing box if you notice excessive leaking.
Mechanical seal training course with working animation. Change out mechanical seal for a rebuilt mechanical seal cartridge. Do not exces sively compress the seal before or during installation. Our mechanical seals are easier to install than the oem, and offer 34 times the life of the original seal. Mechanical seal for pump and compressor applications will be addressed. As part of the german freudenberg and japanese ekk group, eagleburgmann is one of the worlds leading. Jul 12, 2017 the training course on mechanical seals covers the working, design, maintenance, installation and operation details. Leadon chamfer for ease of installation, the leadon edge of the shaft or sleeve should be chamfered as shown. Operation and maintenance instructions for sharpe mixers. Packing although mechanical seals had been around for many decades, by 1955 industry had converted only a small percentage of pumps from packing to mechanical seals.
Recent design like dry mechanical seal will also be. Different mechanical seals require different maintenance steps and while it is best to leave the maintenance to professionals, it pays to know about proper maintenance tips so that you will be able to know if your mechanical seals need maintenance or not. In many cases, the repair of the mechanical seal can be a feasible option to replacing the seal with a new seal. The seal is designed exclusively for sealing rotating shafts. Outside mounted configuration with product located. Installation, operation, and maintenance manual itt pro services. Waukesha seals zm technologies sanitary mechanical seals. Have tools required at the work bench have a clean work space free from particulate, dirt, metal shavings, etc. This article focuses on best maintenance repair practices necessary for maintenance personnel to keep equipment operating at peak reliability and. John crane mechanical seals and seatsmating rings are precision prod ucts and must be handled appropriately. When things are running smoothly its easy to overlook common maintenance chores and rationalize that its not worth the time to regularly inspect and replace parts.
Pump maintenance michigan water environment association. Sulzer has expertise to repair all mechanical seal brands to a condition as good as new. Keep the mechanical seal in its original container until ready for installation. The principle of the mechanical seal is to use two replaceable antifriction mating ringswith. Sep 17, 2014 after completing a recent training class, i had opportunity to ask our customer what were some of the highest cost failures they experienced. The participant will gain uptodate information and practical understanding of the basics, applications, troubleshooting and failure diagnosis, installation and maintenance of mechanical seal. The initial cost of a mechanical seal is high as compared to compression packings. Inner mechanical seal always takes high pressure, but the outer mechanical seal must also be able to withstand full pressure in the event of inner mechanical seal failure. Check for a plugged flush line orifice by taking temperature. The sealchamber cover meets api 682 3rd edition dimensions for improved performance of mechanical seals. Some mechanical devices the lever, the wheel, and many hand toolsare thousands of years old.
However, the power consumed, maintenance and downtime spent in renewing or tightening the compression packing overweigh the initial cost of a mechanical seal, which works unattended for a long time. About us at the leading edge of industrial sealing technology. Swageloks mechanical seal support systems are designed to maximize the life of mechanical seals and the reliability of rotating equipment by maintaining lubrication and system pressure and providing properly conditioned fluid flows. Mechanical seal support systems api 682 solutions configured locally from the company you trust. Klm technology group project engineering standard inspection and maintenance of mechanical pump seals project standards and specifications page 2 of 17 rev. The training course on mechanical seals covers the working, design, maintenance, installation and operation details. Confirm that the pump is operating in its equipment reliability operating envelope eroe. See what measures help to prevent pump damage along with inspection maintenance schedule. This article will explain what a mechanical seal is and the key design features that make them work. In end or rotatingface mechanical seal designs, the initial closing force is provided by a spring component, which can be a single coil spring, multiple coil back to basics.
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