Imprint The complete guide to all plans for supplying mechanical seals Rely on excellence API 682 4th edition piping plans Plan overview < Introduction < Symbols < Process side Between seals Atmospheric side Plan 01Internal circulation in pump Plan 52 Buffer liquid reservoir Plan 51 Dead-end quench reservoir, vertical pumps Plan 02Dead ended, clean medium Plan 53A Barrier liquid, reservoir Plan 61 Tapped connections Plan 03Tapered seal chamber bore Plan 53B Barrier liquid, bladder accumulator for purchaser's use Plan 11 Circulation, pressure increase Plan 53C Barrier liquid, piston accumulator Plan 62 External quench Plan 12 Circulation, pressure increase + strainer Plan 54 External barrier liquid system Plan 65A Leakage collection and alarm, reservoir Plan 13 Circulation, venting Plan 55 External buffer liquid system Plan 65B Leakage collection and alarm, reservoir Plan 14Circulation, venting, Plan 71 Tapped connections Plan 66A Leakage detection and alarm, Plan 11+13, vertical pumps for purchaser's use two bushings Plan 21Circulation via cooler Plan 72 Buffer gas system Plan 66B Leakage detection and alarm, orifice plug Plan 22Circulation via cooler, strainer Plan 74 Barrier gas system Plan 23Forced loop via cooler Plan 75 Leakage collection and alarm, reservoir Engineered Plan 31Circulation, cyclone separator Plan 76 Vapor leakage to flare Plan 99 Engineered to customer’s specifications Plan 41Circulation, cyclone separator + cooler Plan 32External flush Remark The configurations listed for each individual piping plan are to be understood as recommendations including possible utilizations which may also be applied. Introduction < Symbols < Front page < Preface EagleBurgmann in profile A sealing provider you can count on A sealing system, consisting of a mechanical seal EagleBurgmann is one of the internationally leading More than 21,000 EagleBurgmann API-seals and and an associated supply system that is balanced companies for industrial sealing technology. Our systems are installed world-wide. by individual applications, is the utmost guarantee products are used wherever safety and reliability for a reliable sealing point and uninterrupted pump are important: in the oil and gas industry, refining service. The performance of the seal is greatly technology, the petrochemical, chemical and influenced by the environment around the seal pharmaceutical industries, food processing, power, faces, making the provision of suitable, clean fluids water, mining, pulp & paper and many others. More as well as a moderate temperature an essential than 6,000 employees contribute their ideas, topic. solutions and commitment towards ensuring that customers all over the world can rely on our seals This guiding booklet provides a condensed overview and services. of all piping plans established by the API 682 4th edition guidelines. Each illustrated piping plan is briefly described, and a recommendation that EagleBurgmann and API 682 considers the media characteristics in terms of the relevant application and corresponding We offer our customers the widest product portfolio configurations is given to help you reliably select of seals and seal supply systems according to API your sealing system. 682 4th edition. EagleBurgmann SPB6 seal supply system Plan 53B Furthermore, we have enriched this booklet's content by providing clues – so-called ‘remarks and checkpoints’ – where we share the experiences we have gained from multiple equipped plants. EagleBurgmann range of balanced pusher and metal bellows mechanical seals acc. to API 682 4th ed. Plan overview < Symbols < Front page < Color key Symbols library Plan location: Instrument symbols Equipment symbols Process side plans Between seals plans FO Flow orifice Bladder accumulator Atmospheric side plans LI Level indicator Piston accumulator Seals: LIT Level transmitter with local indicator Cyclone separator Stationary seal parts Differential pressure transmitter Filter, coalescing Mating ring (stationary) PDIT with local indicator Rotary seal parts Flow orifice Seal ring (rotating) PI Pressure indicator Seal cooler PIT Pressure transmitter with local indicator Strainer, Y Pump medium TI Temperature indicator Valve, normally open Temperature transmitter TIT with local indicator Valve, normally closed HLA High level alarm set point Valve, needle LLA Low level alarm set point Valve, check NLL Normal liquid level Valve, pressure control Valve, pressure relief Plan overview < Introduction < Front page < Process side Plan 01 Integral (internal) recirculation from the pump discharge to the seal chamber. A PLAN 03 APITEX–SC © EagleBurgmann PLAN 03 APITEX–SC © EagleBurgmann A Internal recirculation Drawings < Description < Applicable Seals & Systems < Plan overview < Seal chamber details 2 3 4 1 Inlet 1 2 Flush (F), plugged (for possible future circulating fluid or for venting on vertical pumps) 3 Quench (Q) 4 Drain (D) 5 Seal chamber 5 Example seal: EagleBurgmann APItex-S single pusher mechanical seal. P&ID according to API PLAN 01 APITEX–SC © EagleBurgmann Description < Applicable Seals & Systems < Plan 01 < Plan overview < Features Application Remarks, checkpoints Pump media characteristics • • • • Plan 01 does not need any external Generally used for horizontal The flow of the flush fluid must be Highly viscous media with a piping. pumps. sufficient to remove the heat from tendency to congeal or polymerize • • Acts as an internal flushing line for Highly viscous fluids which tend to the mechanical seal chamber. when cooled. • the mechanical seal. thicken, solidify or polymerize. Unlike in Plan 11, the flush is • Prevents highly viscous fluids from • More applicable to ANSI pumps. seldom directed over the seal Location, function • freezing/polymerizing at lower faces. Process side • • temperatures because the flushing Not recommended for dirty products Flushing and cooling line is not exposed to the as they will tend to clog the atmosphere like in Plan 11. flushing line. Configurations • Not applicable for vertical pumps. 1CW-FX, 2CW-CW, 3CW-FB 1CW-FL*, 2CW-CS*, 3CW-BB*, 3CW-FF*, 3NC-FB*, 3NC-BB*, 3NC-FF* * Possible, see remark on page >plan overview. Applicable Seals & Systems < Drawings < Plan 01 < Plan overview < Applicable EagleBurgmann seals Category 1 Configuration 1CW-FX: APItex-S Configuration 2CW-CW: APItex-T Configuration 3CW-FB: APItex-T Learn more about our products: eagleburgmann.com/api682 Plan 01 < Drawings < Description < Plan overview < Process side Plan 02 Dead-ended seal chamber with no recirculation of flushed fluid. Flush connections plugged. A PLAN 02 LY9TC © EagleBurgmann PLAN 02 LY9TC © EagleBurgmann A Flush connection plugged Drawings < Description < Applicable Seals & Systems < Plan overview < Seal chamber details 3 2 1 1 Flush (F), plugged (for possible future circulating fluid or for venting on vertical 4 5 pumps) 2 Vent (V), if required 3 Heating/cooling inlet (HI or CI), heating/cooling outlet (HO or CO), if required 4 Quench (Q) 5 Drain (D) 6 Seal chamber Example seal: EagleBurgmann LY9TC 6 single stationary metal bellows mechanical seal. P&ID according to API PLAN 02 LY9TC © EagleBurgmann Description < Applicable Seals & Systems < Plan 02 < Plan overview <