At the same time, these barrier systems must prevent any external product leakage. Each plan shows all the standard and optional auxiliary components referenced in api standard 682 and recommended by flowserve. Plan 01 what internal seal chamber flush from pump discharge. 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. Applicable to low seal chamber pressure and process temperature. Assures adequate flow for seal cooling eliminates excessive flush rates which can cause seal face erosiondiagnostic instrumentation includes flow and pressure gauges in order to visually check the seals operating environmentalarms alerts control room of a loss of flush water so that immediate action can be taken to save the. The following instructions describe the appropriate system, bufferbarrier fluids, installation, startup. Mechanical seal piping plans flowserve corporation. Industry applications are provided as well as operating parameters, features and equipment suitability for individual products. Plan 23 seal flush plan 23 cools the seal chamber fluid by using a pumping device to circulate the seal chamber fluid out through a seal cooler and back to the seal chamber.
The flow through this gap is generally so low it goes unnoticed if a liquid or inconsequential if a gas. The selection and design of dual pressurized liquid. Ensure that the recirculation is sufficient for seal heat removal. Installation operation maintenance 682 seal cooler. Ensure that the cooler is mounted above the pump centre line. Product recirculation from seal chamber to pump suction via a flow control orifice. View and download flowserve ro installation instructions manual online. Flowserve fsd has an alliance agreement with the sundyne corporation. The flowserve single spring seal range is divided into three main product groups, namely. Considerations in the selection of dual pressurized seal. To find your local flowserve representative and find out more about flowserve corporation, visit. This applies in particular to the seal faces and secondary sealing elements. The bottom of the accumulator is connected to a reference pressure in the pump.
Sealing systems for pumpssealing systems for pumps part i. Designed to support pressurized double or dual seal arrangements, flowserve seal support systems are engineered to extend seal life by. Description dead ended seal chamber with no flush fluid circulation. Manufacture engineered and industrial pumps, industrial valves, control valves, nuclear valves. Api plan a internal or external bearing flushing multiple api seal flushing, barrier fluid and quench. Increase seal chamber pressure and fluid vapor margin. Api piping plans help to ensure good conditions for mechanical seal operation as well as improving safety and pump reliability. Pac seal, incorporated a unit of flowserve corporation flow solutions division 211 frontage road burr ridge, illinois 60521 usa phone 630 986 0430 facsimile 630 986 1033. With a lower k value, the safety against thermal overload will increase, but the mechanical seal may also lift off more easily. These single spring mechanical seals have been designed to service the european pump market and are total. Flowserve offers split seals for applications where downtime and equipment disassembly are critical. The barrier pressure is generated from the seal chamber pressure. After a storage period described in fis222, flowserve mechanical seal and seal support system storage, the mechanical seal must be inspected for its as new properties.
Wuj iso 709api 610 vs1 wetpit pump wuc iso 709api 610 vs6 vertical, double casing, multistage pump cpxv iso vertical sump pump versatile, reliable performer wuj wuc. Flowserve is the recognized world leader in supplying pumps, seals, valves and associated services to the power, oil, gas. Must be finished in the same manner as the rotary face. The selection and design of dual pressurized liquid sealing systems michael huebner principal engineer flowserve corporation pasadena, tx, usa kent appleman senior engineer flowserve corporation tulsa, ok. External reservoir at pressure below seal chamber pressure providing buffer liquid forced circulation. Dirty or contaminated fluids, water with sand or pipe slag. Unlike an oring seal, the hydraulic diameter of a bellows seal is not a fixed geometric value. Whystandard flush plan in hot water seal chamber heat removal. What are the main differences between a mechanical seal for an agitator vs mechanical seal for pumps. Flowserve provides seal support systems used to create a favorable environment around the mechanical seal.
Double cartridge mechanical seal supported by either an api plan 53 or an api plan 54 flush plan. Considerations in the selection of dual pressurized seal piping plans part 2 dual mechanical seals are commonly used to provide enhanced equipment reliability for centrifugal pumps and other rotating equipment. Usa michael huebner is a principal engineer at flowserve corporation. Api plan 53b systems are used extensively in the chemical and petrochemical industry for maintaining optimum cleanliness and temperature around the mechanical seals used in dual pressurized configurations. Jun 24, 2011 new flowserve bearing gard extend the life and improve reliability of your rotating equipment duration. See flowserve piping plan guide fta160 or your local flowserve representative for best practice guidelines for. While its performance is obviously dependent on the design of the seal itself, the ultimate seal performance is influenced by the design and operation of the pump. Carbon can be used as one of the seal faces if plan 32 using recycled effluent is. In addition, as the process side seal leaks in this flush plan, the atmospheric side seal will essentially be sealing the pumped fluid, exposing the plant to the release of flammable andor toxic vapors. The complete cross reference for mechanical face seal replacement how to use this catalogue.
Flowserve pss 4 split seal installation training duration. Flowserve represents not only a collection of trusted products, but also a single global source that can reduce your total cost of ownership. Printed in usa you choose the level of equipment data management you need. With abrasive products or products that are incompatible with the seal. Committed to the complete pump system life cycle for more than two centuries, flowserve has served industries requiring solutions that add value and reduce costs throughout the life cycle of a pumping system. 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. Step into the flowserve library and explore a collection of brochures, catalogs, user instructions and other resources that represents our companys wideranging expertise in the flow control industry. In 1997 with the merger of two leading fluid motion and control companies bwip and durco international stock symbol. Can also be used for water quench plan 62 dual seals seal gard ii launched 1994 seal gard 54 launched 2019 single or dual flowmeters available 5 seal gard i seal gard ii. Mechanical seal for agitator flowserve agitator seal mixer. For the corresponding asme b73 piping plan designation. Consult your local flowserve sales engineer to identify the right solution that satisfies your application requirements. A cooler b piston accumulator c pressure reference d drain e vent. The selection and design of dual pressurized liquid sealing.
Piping plan fundamentals seal manufacturers and end users alike recognize that a mechanical seal does not operate as a single component. It was then modified to be able to operate as a mixer seal isc2mw. Flowserve ro installation instructions manual pdf download. To check out mechanical seal flushing arrangements and piping plans. This is best illustrated by the flowserve standard cartridge seal. Common types of pumps mechanical seal piping plans. 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. Please contact aesseal systems division for further details. One of these strategies, a plan 53c, utilizes a piston accumulator to pressurize the system. Presented by flow solutions division flowserve at a glance founded. The following instructions describe the appropriate system, bufferbarrier fluids, installation, startup and maintenance. The presence of a pressurized barrier fluid between the two seals makes the seal less dependent on the pump process fluid. Flowserve, in addition to suggesting plan 54, recom mended an mw200 cartridge canister seal with a cooling spool. Compared to john crane safeunit, flowserve seal gard 32 and 54 offer.
Plan 21 seal flush plan 21 provides cooling to the seal with high flush. Improvements in piping plans have made seal installations more reliable. In addition to the ecpj, flowserve also can provide the following complementary api standard pump designs. Installation operation maintenance 682 seal cooler flowserve. The appropriate selection of a seal support system will deliver years of reliable service and operating cost savings. Where high temperature service, typically less than 177c 350f.
Installation, operation and maintenance manual nx seal cooler. In plan 53b, the pressurizing gas does not come into. All piping plan designations used in these instructions are from api 682. With a clean cool product use a bypass flush from the pump discharge plan. Standard two piece bearing frame foot mounted, centreline mounted and unitized selfpriming chemical process pumps. Sealing systems for pumpssealing systems for pumps part i presented by. 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. Where custom seal chamber, most likely an ansiasme pump. Other flowserve products pumps pumping systems from flowserve meet customer demands in the most. Vent valve required at highest point of piping system. A guide to flowserve seals this catalog will familiarize you with select mechanical seal products, seal support systems and services designed to improve rotating equipment operations.
We have the ability to go out to the customers site and measure the pump, design the seal, manufacture the seal, put it together and test it in less than 72 hours, husky says. This p50 seal is a cartridge mounted mechanical seal, designed for. He has over 30 years of experience working with mechanical seal design, sealing systems, centrifugal pumps, and fluid handling. Connect gas barrier plan 74 shown in figure 12 to the gas barrier inlet port. An inspection by flowserve or its appointed representative is strongly advised. The seals are arranged by shaft size from smallest to largest. Manufacture engineered and industrial pumps, industrial valves, control valves. 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. Mechanical seal technology and selection eagleburgmann. Michael huebner is a principal engineer at flowserve corporation in pasadena, tx. To order replacement parts, refer to the part code and bm number. Flowserve corporation proprietary and confidential. Api plan 53c barrier fluid system pressurized by a piston accumulator supplying clean liquid for an arrangement 3 pressurized dual seal.
Of course, the mechanical seal should be correctly and most optimally designed for the particular application at hand. New flowserve bearing gard extend the life and improve reliability of your rotating equipment duration. Ou les boites a garnitures larges ou ouvertes pour des temperatures moderees. Plan 03 plan 65b plan 66a plan 66b what seal flush from pump discharge through orifice. A mechanical seal works by creating a restrictive flow path, this is either an axial or radial gap. 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. Shaft sealing options the ecpj is available with multiple shaft sealing options. Ensure that the seal outlet connection is in the top half of the gland. Cpxv iso vertical sump pump versatile, reliable performer. Flowserve can supply information on buffer fluid flow requirements based on seal size, product temperature, buffer fluid characteristics, and shaft speed. With the need to minimize head loss or pressure drop through this recirculation system, the seal cooler is typically piped for parallel or single pass tube flow.
This months sealing sense was prepared by fsa member eric vanhie from the voice of the. Ensure that pump has a close clearance throat bush. The p50 requires a clean cool environment for maximum seal life. Stationary face the mating ring against which the seal face runs. Designed for applications with high hse risks due to high h. Product recirculation from seal chamber to heat exchanger and back to seal chamber. If you are unable to identify the seal, it will be necessary for you to measure the old seal for correct identification. It is a pressurized flush plan that gets used with a dual seal i. Flowserve has the products, systems and expertise to help processes run smarter, safer and more efficiently.
Mechanical seal products and services catalog flowserve. Mp1 multiphase twinscrew pump 3 the flowserve mp1 doublesuction, twinscrew, positive displacement pump was specifically. Pacseal, incorporated a unit of flowserve corporation flow solutions division 211 frontage road burr ridge, illinois 60521 usa phone 630 986 0430 facsimile 630 986 1033. A mechanical seal is a device used to effect a seal between a rotating or reciprocating part and a stationary part on an agitator mixer vessel. Isc2 seals meet all major international standards and are designed for hundreds of pump models from global manufacturers. The pss iii is a split seal for pumps that provides an ease of installation unmatched in the industry. Multiple seal types, including iso 709api 610 compliant cartridge. Reduce risk of freezingpolymerizing fluid in exposed plan 11 piping.
Single spring and elastomer bellows mechanical 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. Used for applications where products have high pressure and are. Api plan 21 provides cooling to the seal by flowing pump discharge fluid through a. The system is selfenergizing and reacts to fluctuations in the seal chamber fluid pressure. See flowserve piping plan guide fta160 or your local flowserve representative for best practice guidelines for installation of plans 53a, 53b or 53c. 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. Instrumental in this process is the flowserve line of mechanical seals, support systems and services for pumps and other rotating equipment. This is most often the process fluid in the seal chamber since it provides the most relevant pressure for the seals. You can use a mechanical seal in 99% of agitator applications. Piping plan fundamentals seal manufacturers and end users alike recognize that a mechanical seal does not operate as a single. Seal support reservoir installation instructions flowserve. With clean hot product, use a bypass flush through a cooler plan 21. The ability of a mechanical seal to meet its performance objectives depends upon a wide range of factors involving equipment design, operating conditions, and support systems.
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