PIPING PLAN 2

Pump Jacket

PIPING PLAN 23

Cooled Seal Recirculation

PIPING PLAN 52

Circulation with External Buffer Fluid Tank

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PIPING PLAN 62

Quench

Global Solutions, Local Service.

• Use with single seal or dualseal to control seal chambettemperature

• Maintains or elevates boxtemperature to prevent productsolidification with polymers.resins, tars

• Lowers seal chamber temp!!raturein hot environmer'\IS

• Common heat transfer fluids:-Water -Thermal oils- Steam

• Close tolerance throat bushingis required for optimum efficiency

• Use with a single seal andpump mechanism

• Minimizes heat exchanger sizeand coolant water usage

• Cools seal while pumpinghot and/or volatile fluids

• Use with close tolerancethroat/restriction bushing

• Venting is important

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• Use with a dual seal

• Low pressure buffer fluid,10 psig (0.7 bar g) minimum

• Buffer fltJid should be clean,compatible and lubricating

• Buffer fluid pressure lowerthan seal chamber pressure

• Seal venting is important• Use long sweeps in

tubing bends

• Use with a single seal

• Prevents coking,crystallization

• Low pressure only

• Cleans atmospheric sideof seal faces

• Common quench fluids:- steam-water-nitrogen

PIPING PLAN 11

Discharge Recirculation

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PIPING PLAN 31

Discharge Recirculation with Cyclone Separator

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PIPING PLAN 53A

Circulation with Pressurized External Barrier Fluid Tank

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PIPING PLAN 74

Externally Supplied Barrier Gas

• Use with single seal or dual seal

• Increases circulation

• Increases pressure in sealchamber

• Clean fluids only- Solids can erode seal

• An orifice can can be usedto reduce flow and pressure

• Use with a single seal wherefluid contains some ab1asives

• Cools seal

• Increases seal chamberp1essure

• Density of solids must be significantly greater than fluid

• Use caution with highviscosity fluids

• Requires pressure differential

• Will not remove micronsize particles

• Use with a dual seal

• Pressurize barrier fluid15·30psig (1·2barg)over maximum sealchamber pressure

• Barrier fluid should be dean,compatible and lubricating

• Provides clean fluid 10the inboard seal faces

• Use long sweeps Intubing bends

g,=nr=iilc=;, • Use with a non-volatile gas• Provide gas at 25 psig

(1,7 bar g) above seal chamber pressure

• Venting of the seal chambermay be required prior tostart-up

• Use Nitrogen, Carbon Dioxideor Compressed Air

• Zero emmissions andleakage to atmosphere

MECHANICAL SEAL

Pl Pl NG PLANS

PIPING PLAN 12

Discharge Recirculation with Strainer

PIPING PLAN 32

Clean Flush

PIPING PLAN 538

Closed Loop with Heat Exchanger and Accumulator

• Use with single seal

• Cools seal

• Increases pressure in sealchamber- Throat bushing optional

• Clean fluids only- Solids ccm erode seal- Solids can dog seal when

bushing is used

• An orifice can be used toreduce flow and pressure

• Use with a single seal

• Provides clean flllid to seal

• Prevents clogging

• Acceptable flush fluids- Clean, compatible fluid-Water, ii compatible-Clean product-Downstream additive.-Carrier solvent

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4400 GAS SEAL

• Optional thermocouple

• No foaming

• Heat is removed by an ai1-cooled 0< water-cooledheat exchanger

• Accumulator sizing crucial

• Maintains constant pressureon the circulation system

IN GLAND CONTROL SYSTEM

PIPING PLAN 13

Suction Recirculation

PIPING PLAN 33H

SpiralTrac'" Version D Type I

PIPING PLAN 53C

Heat Exchanger and Piston Accumulator

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442 SPLIT

MECHANICAL SEAL

• Vents air and prevents dry run

• Prevent5 dogging

• lowers pressure in sealchamber

• Cools seal• Reduces seal generated heat

• Use caution with low vaporpressure liquids

• Use with a single seal

• Removes solids

• Seal runs in dean fluid

• Prevents clogging

• Removes vapor fromseal chamber

• Preverns dry running

• No flush required

• Optional thermocouple

• No foaming

• Heat Is removed by anair-cooled or water-cooledheat exchanger

• Tracks product pressurein seal chamber

• Maintains constant pressureon the circulation system

PIPING PLAN 14

Suction and Discharge Recirculation (Vertical)

PIPING PLAN 335

SpiralTrac'" Version F Type S

PIPING PLAN 53P

Circulation with Pressurized External Barrier Fluid Tank

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S10 SINGLE AND S20 DUAL

STREAMLINE'M CASSETTE SEALS

IDEAL

• Vents air and preventsdry ,un

• Use with single sealor dual seal

• Prevents clogging

• Cools seal

• Promotes flow

• Reduces seal generated heat• Use caution with low vapor

pressure liquids

• Use with a single seal

• Removes solids

• Seal runs in clean fluid

• Prevents dogging

• Prevents dry running

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• Maintains constant pressure and liquid supply to the dual seal

• External water pressureis set at 30 psig {2 bar g)over maximum sealchamber pressure

• Initial tank level is set throughthe external warer pressure line

• Pressurize tank to 25 psig(1,7 bar g) over maximumseal chamber pressure witha regulated gas pad, thenisolate gas pressure

• Tank is then charged Withregulated external waterpressure

• System operates with a constantexternal water pressure

180 HEAVY DUTY

SINGLE SEAL

PIPING PLAN 21

Cooled Discharge Recirculation

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PIPING PLAN 41

Cooled Discharge Recirculation with Cyclone Separator

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PIPING PLAN 54DM

Circulation with Pressurized External Barrier Fluid Source and Flow Guardian'" DP50

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280 HEAVY DUTY

DUAL SEAL

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• use with a single seal

• Cools hot, volatile flLJids

• Cools seal

• lnaeases seal chamberpressure

• An orifice can be usedto control flow and reducepressure

• Use with close tolerancethroat/restriction bushing

• Use with a single seal wherefluid contains some abrasi�es

• Cools seal

• Increases seal chamber pressure

• Supplies cleaner fluid

• Reduces clogging potential

• Density of solids must besignificantly greater than fluid

• Use caution with high viscosity fluids

• Requires pressLJre differential

• Will not remove micron sizeparticles

• Use with a dual seal

• Pressurize barrier fluid15 • 30 psig (1 - 2 bar g) over maximum sealchamber pressure

• DP50 provides inboard sealleak detection, pressureregulation and flow control

• Barrier fluid should be clean,compatible and lubricating

• Provides clean fluid to inboardseal faces

PHONE: 618 9302 8400 FAX: 618 9302 6186 www.chesterton.com

EMAIL: service@pumpnseal.com www.pumpnseal.com