Api 610 vs4 vertical sump pump 3 the flowserve ecpj is a rugged, single stage vertical lineshaft sump pump designed to perform tough jobs reliably, under a variety of difficult conditions. Installation instructions experience in motion isc2 series. In plan 11, product is routed from the pump discharge to the seal chamber to provide cooling for the seal and to vent air or. Standard flush plans for mechanical seal plan 01 see figure 1. The system consists of dual mechanical seals with a barrier fluid between them. Plan 23 seal flush plan 23 cools the seal chamber fluid by using a. High and low pressure liquid backup seal capability allows for safe and convenient equipment shut down if the primary seal fails at pressures up to 600 psi 41. The p50 requires a clean cool environment for maximum seal life. No other pump company in the world has the depth or breadth of expertise in the successful application of preengineered, engineered and special purpose pumps and systems. Eagleburgmann api piping plans overview process side between seals atmospheric side engineered. This document allows users to determine typical surface temperatures based upon seal design, operating conditions and face materials and may be used by the users to comply with atex 199992ec atex 7. Instrumental in this process is the flowserve line of mechanical seals, support systems and services for pumps and other rotating equipment. Flowserve has the products, systems and expertise to help processes run smarter, safer and more efficiently. Ease of maintenance precise seal face setting for maximum seal life back.
Customer specific variants of these plans are possible. Plug valve solutions for the upstream exploration and production pipelines. The success of your application isnt just about seal design. This plan provides an external barrier fluid which circulates from the seal to a reservoir and back to the seal. Why continuous seal chamber venting on vertical pumps. Isc2 seals meet all major international standards and are designed for hundreds. Double mechanical seal arrangement options double seals. Pac seal alc 25 m040, m053 for alfa laval alc pumps pac seal alo 25 1500, 2000 for alfa laval contherm he pac seal kzn 25 m022, 028,038,048 for ksb pumps pac seal mac 25 1250, 1750 for macerator and waste disposal pumps pac seal aws 26 m025, m035 for apv world pumps, single. Flowserve seals are used on a variety of rotating equipment, including pumps, compressors, mixers, steam turbines and other specialty equipment. Originating from the flowserve gw gas seal used in sundyne lmc inline compressors, the flowserve gw liquid seals are traditional, flatfaced, hydraulically balanced, odpressurized, stationary multispring pusher end face mechanical seals run against a hard carbide rotor. With a clean cool product use a bypass flush from the pump discharge plan. With abrasive products or products that are incompatible with the seal. Based on a modular design system, the ecpj pump provides dependable performance while offering maximum mechanical and hydraulic design flexibility. He has over 30 years of experience in pumps, seals and fluid handling equipment.
What deadended seal chamber with recirculation from seal chamber no flush. Increase seal chamber pressure and fluid vapor margin. All three plans require some type of makeup system for barrier. Flowserve engineers make sure you have the most appropriate seal and sealing system to ensure high reliability, long life and low total cost of ownership. Operation maintenance 682 seal cooler experience in motion. With clean hot product, use a bypass flush through a cooler plan 21.
Used for applications where products have high pressure and are. One of these strategies, a plan 53c, utilizes a piston accumulator to pressurize the system. Multiple api seal flushing, barrier fluid and quench system piping plans suction pipe shaft sealing options the ecpj is available with multiple shaft sealing options. Environmental temperature influences on plan 53b mechanical seal systems achema 2015 congress presentation abstract experience in motion flowserve. Most common plans and sealing systems plan 53b plan 53c plan 52 used where the pumped product is harmful hazardous and or buffer fluid may not contaminate the product. An api plan 53aansi 7353a is a pressurized dual seal system which is used in services where no process leakage to atmosphere is tolerated. The flowserve isc2 series is a complete family of mechanical seals that provide exceptional reliability and standardization over the widest variety of industrial applications and equipment. Api plan 75 eagleburgmann api piping plans overview process side between seals atmospheric side engineered a containment seal chamber leakage collection system for condensing or mixed phase leakage on arrangement 2 unpressurized seals with containment seals. The qcd feature allows for the use of a low pressure fluid water quench to be applied to the atmospheric side of the seal faces.
All of this makes flowserve seals the industrys top choice for the most demanding environments. Barrier fluid must be compatable and able to be refilled while pressurized. Isc2 seals meet all major international standards and are designed for hundreds of pump models from global manufacturers. Flowserve announces plans to promote isc2 seal series. Contact a seal oem for estimated leak rates since they allow the use of barrier. Reduces flashing or air intrusion across seal faces by providing a positive flush. The seal flush plan is as equally critical and perhaps more so to help establish a reliable operating mechanical seal. The selection and design of dual pressurized liquid sealing. Cameron hydraulic data the cameron hydraulic data book is a flowserve corporation publication and, as in the previous nineteen editions, is published as an aid to engineers involved with the selection and application of pumping equipment.
They have application in the oil and gas, pharmaceutical, chemical processing, mineral and ore processing, and general industries. This manual covers the installation and operation of flowserve seal support systems for dual unpressurized api plan 52ansi plan 7352 and dual pressurized seals api plan 53a, 53b, 53cansi plan 7353. In addition to its extensive seal portfolio, flowserve offers highquality pumps, valves and actuation for the worlds toughest applications. With assistance from the flowserve services and solutions team, all engagements are tailored to meet.
The barrier fluid is pressurized by means of an externally supplied pressurization gas. It also depends on selecting the right model, design options, materials, arrangements and piping plans. The new draft of the fourth edition of api 682 and the planned update of iso 21049 include a significantly expanded version of. Gw seals originating from the flowserve gw gas seal used in sundyne lmc inline compressors, the flowserve gw liquid seals are traditional, flatfaced, hydraulically balanced, odpressurized, stationary multispring pusher end face mechanical seals run against a hard carbide rotor. If maintained properly the best of all single seal plans subject to acceptance of contamination. See flowserve piping plan guide fta160 or your local flowserve representative for best practice guidelines for installation of plans 53a, 53b or 53c. Flowserve corporation has established industry leadership in the design and manufacture of its products. For example, the flush for piping plans 1175 or 3275 may be the product plan 11 or an external source plan 32. Critical dimensions include shaft or sleeve od a, a chamber depth of at least 25. Piping plans help keep mechanical seals running cool and clean, promote safe handling of dangerous fluids, and extend the operational availability of rotating equipment.
Components are interchangeable with standard qb series. Mechanical seal piping plans webinar session 3 youtube. Clean fluid film formation between the inboard seal faces gives better seal life. These seals often use two rotating seal faces and two stationary seal.
When properly selected, this flowserve product is designed to perform its intended function safely during. Plan 11 takes fluid from the pump discharge or from an intermediate stage and directs it to the seal chamber through a properly designed orifice the side stream should have a slightly bigger pressure than the prevailing pressure directly behind the pump impeller for cooling and lubrication of the seal faces. Api 682 seal chamber accommodates a wide variety of seal configurations including dual pressurized and unpressurized cartridge types for the most severe services. Mechanical seal piping plans single seals plans 01, 02, 03, 11, 14, 21, 23, 31, 32, 41 dual seals plans 52, 53a, 53b, 53c, 54, 55 quench seals. Conclusion all three api plan 53 versions are intended to isolate the pumped product from the atmosphere and create a favorable arti. This is most often the process fluid in the seal chamber since it provides the most relevant pressure for the seals.
The plan 53a is historically the most common method used to pressurize dual pressurized liquid sealing systems. Jun 24, 2011 new flowserve bearing gard extend the life and improve reliability of your rotating equipment duration. Unpressurized containment seal operation may include support system plans 72, 75, 76 for simplified maintenance. The twentieth edition includes some new content additions. Pumping solutions flowserve is providing pumping solutions. This particular article looks at api plan 53b and how paying careful attention to some aspects of this plan can ensure a proper and reliable running seal. Other flowserve products pumps pumping systems from flowserve meet customer demands in the most. A mechanical seal is a device designed to seal a rotating shaft against a stationary housing, e. In addition, a lot of seal vendors publish handy booklets that contain good, brief and quick references and explanations of the different api seal plans. A guide to flowserve seals this catalog will familiarize you with select mechanical seal products, seal support systems and services. Flowserve represents not only a collection of trusted products, but also a single global source that can reduce your total cost of ownership. Common types of pumps mechanical seal piping plans single. Plan 11 is the default seal flush plan for all single seals. Seal product portfolio flowserve pdf book manual free.
Different types of pumps mechanical seal piping plans are detailed in api 682 or iso 21049 standards. Flowserve sales engineer to identify the right solution that satisfies your application requirements. Extends seal life selfventing selfflushing selfdraining reduces maintenance and repair costs provides a safer environment for personnel permits use of less expensive seal and flush plans improves pump reliability cpx 45 seal chamber technology 6 45. Sarbs pump maintenance seminar, june 7, 2012 factors influencing leakage seal face condition runningin process process influences stability of seal face condition of the secondary seals face deformation caused by temperature and pressure vibration and stability of the machine operating mode of the plant characteristics of the sealed fluids. External reservoir at pressure below seal chamber pressure providing buffer liquid forced circulation. Always provided at a pressure greater than seal chamber pressure. Please contact aesseal systems division for further details.
Flowserve recognizes that one of the most effective ways to achieve long, uninterrupted mechanical seal life is to create a healthy environment around the seal faces. A short collection of mechanical seal performance calculations has always been included in the earlier and current editions of the seal standard api 682 and the cobranded version of iso 21049. With a lower k value, the safety against thermal overload will increase, but the mechanical seal may also lift off more easily. In no case will media leak to atmosphere provided the seal support system pressure is not lost. Sealing systems for pumpssealing systems for pumps part i. This is an internal recirculation from the pump discharge into the seal.
Sl 5200 primary seal is the same as the sl 5000 with the addition of a quench containment device qcd. Api plan 53a, 53b, 53cansi plan 7353a for dual pressurized seals. Installation operation maintenance 682 seal cooler flowserve. An alliance customer can select from a variety of programs or create a unique arrangement that best suits their needs, including regional and global plans. Mechanical seal technology and selection eagleburgmann. A seal piping plan is designed to improve the environment around the mechanical seal and therefore increase the performance and reliability of the seal. The slm6200 has been designed to leak water barrier fluid into the process at 4 liters 1 gallon per day. The circulating feature in the p200 provides a positive bufferbarrier fluid flow from the seal cavity to the supply tank and back to the seal. Leakage detection and containment in arrangement 1 seals. Unlike an oring seal, the hydraulic diameter of a bellows seal is not a fixed geometric value. Common types of pumps mechanical seal piping plans.
Pump division pump supplier to the world flowserve is the driving force in the global industrial pump marketplace. A full complement of api 610 seal flush piping plans is available. For double mechanical seals backtoback en specifies the short type only. The bottom of the accumulator is connected to a reference pressure in the pump. In part 2, were taking a closer look at the various rotary and stationary double seal arrangement options configurations, and how to maximize their success.
Works as a plan 52 arrangement if barrier fluid pressure is lost. All red plastic capsthread guards are for shipping protection only and should be replaced with either a piping connection or a metal plug in the same metallurgy as the gland. The following instructions describe the appropriate system, bufferbarrier fluids, installation, startup and maintenance. In part 1 of our series on double dual seals, we discussed the benefits of dual seal design and when to use it. Field troubleshooting common mechanical seal piping plans michael huebner principal engineer flowserve corporation pasadena, tx usa ronald hurst manager, application engineering flowserve corporation pasadena, tx usa michael huebner is a principal engineer at flowserve corporation in pasadena, tx. Solutions to reduce the negative effects will be presented. Flowserve products are designed, developed and manufactured with stateoftheart technologies in modern facilities. The selection and design of dual pressurized liquid. Leakage detection and containment in arrangement 1 seals michael huebner principal engineer flowserve corporation deer park, texas, usa michael huebner is a principal engineer at flowserve corporation in deer park, tx.
Mechanical seal products and services catalog flowserve. Multiple seal types, including iso 709api 610 compliant cartridge seal designs, are available to suit application needs. Api piping plans help to ensure good conditions for mechanical seal operation as well as improving safety and pump reliability. Fluid seal division dura seal selection guide introduction this dura seal selection guide is a general service guide intended to assist in the selection of materials of construction for the dura seal line of endfaced rotary equipment shaft seals manufactured by flowserve fluid sealing division. Single spring and elastomer bellows mechanical seals. 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. The stationary components will consist of a seal ring and depending on the design a springloaded element. Integral internal recirculation is from pump discharge to seal.
Mechanical seals according to en 12756 code system for single mechanical seals there is a distinction drawn between standard n and short k types. The springloaded element can be a spring or a bellows. The seal ring is sealed against the housing with a. Common types of dual seals are addressed in another article. Flowserve product catalog pumps, seals, valves and actuation. Contact flowserve for additional piping plan information or technical support. Most common types of pump seal piping plans for single seals are discussed in following paragraphs. Clean, nonpolymerizing fluids at moderate temperatures. Flowserve corp, a usbased provider of flowcontrol products and services for the global infrastructure markets, recently announced plans to promote, worldwide, its innovative standard cartridge seal series, the isc2.
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