DaubleLife Corporation

Sa/ids Contra/ / Centrifugal Pumps

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•MUD MIXING AND SHEARING OPERATIONS •DESAN DING AND DESILTING •DEGASSING •SUPERCHARGING •CENTRIFUGAL FEED •MUD COOLING TOWERS •WASH-DOWN •CHEMICAL, REFINERY, INDUSTRIAL, CONSTRUCTION AND AGRICULTURAL APPLICATIONS

DRILLING APPLICATIONS:

These pumps assure long life, outstanding performance, and ease of maintenance with overall economy and are currently in operation on offshore rigs and land based rigs worldwide.

Double Life pumps performance give them the edge in drilling and industrial operations due to: high volume, high temperature experience, pumping highly abrasive, high viscosity, and corrosive fluids.

The Double Life family of pumps are designed and engineered to provide long lasting, low maintenance service in drilling fluid or industrial slurry applications. These heavy-duty pumps have been filed tested, and meet the most exacting standards for rugged and demanding applications. The Double Life Corporation will offer the best choice for the intended application. taking into consideration fluid conditions.

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THE DOUBLE LIFE 250 MECHANICAL SEAL

This top quality seal is manufactured from the finest material available today. This seal delivers superior performance due to superior design. Our seal distributes drive torque over 10 drive tabs, which are 2 5-50% thicker than others on the market, therefore reducing stress on the outer retainer. All metal parts are manufactured of 31 6 stainless steel. Elastomers are manufactured from Viton. Seal faces are tungsten carbide for both rotating and stationary.

THE 250 SERIES STUFFING BOX COVER

combines the functions of wear plate and stuffing box into a one-piece replacement unit. Two bolts holds the slip fitted stuffing box in place. The 250 series stuffing box is available for packing or mechanical seal operations. The slip fit design allows easy access to the shaft sleeve.

THE 250 SERIES BEARINGS ARE DESIGNED

for easy maintenance. The outboard bearings are comprised of two angular contact bearings with high thrust load ratings and zero end play. The inboard bearing is a heavy-Outy, double row ball bearing with a high radial load capacity to compensate for the larger impeller sizes and heavy-Outy applications. DL only uses the best bearings available.

THE 250 SERIES SHAFT has a greater diameter shaft to provide heavy-duty performance with minimal shaft deflection. This design extends the packing life. The replacement shaft sleeve allows the wear under the packing to be renewed without replacing the entire shaft. The shaft sleeve and mechanical seal can be replaced without removing the shaft from the pump.

THE 250 SERIES OPEN-VANED IMPELLER

eliminates recirculation which occurs in closed impellers. This impeller is designed to reduce turbulence, lower radial and thrust loads, and provides a smooth flow of fluid through the pump. Housing wear is reduced by eliminating high scrubbing action that occurs on conventional pumps. The 250 series impeller is designed to allow fluid leaving the impeller to blend with recirculating fluid to reduce abrasive wear the casing. The impeller is screwed on and the threads are protected by an o-ring. The open-vaned impeller is locked in place by the use of a special reverse thread impeller bolt. The 250 series pump and impeller are designed to increase service life many times over that of conventional pumps.

THE 250 SERIES CONCENTRIC PUMP HOUSINGS

are heavier and stronger to outlast conventional pumps. The housings are thicker for extra strength and extended service life. The concentric design allows the distance between the impellers and the housing to be the same at all points. The pumps provides streamlined flow. even at shutoff. The concentric housing eliminates turbulence and cavitation within the pump. It also reduces the radial load of the bearings. The required suction pressure is lower due to the full pipe diameter of the pump entrance. The housing gasket is recessed to protect it from fluid leaving the impeller.

FEATURES:

THE DOUBLE LIFE 250 SERIES MODEL PUMP

will outlast and is more powerful and easier to maintain than other conventional pumps on the market today. Greater capacity and higher heads can be achieved with the same piping and base mountings as other conventional pumps. The extended life and performance of this pump has proven to show greater savings for the toughest jobs. The sizing offered are 3x2x13 through Bx6x14.

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THE DOUBLE LIFE 250 "DL·DELUX" FLUID END.

Double life is now offering "DL" extended life fluid ends which include the stuffing box, impeller, and housing assembly. These parts are poured form the highest grade of ductile iron, then finished to exacting specifications. After machining and inspections, these parts can be processed through a quench and temper heat treating facility to fully harden the parts throughout if requested. During this process the parts are hardened to 40-45 ROCKWELL-C scale, this gives the "DL" parts the hardness to withstand the harshest of pumping conditions. Look to Double Life for extended pump life.

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The Double Life Corporation ·Double Life 250 Series Pumps·

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The Double Life Corporation ·Double Life 250 Series Pumps·

ooume Life corporation MODEL 260 SERIES PUMP PARTS

1 1 HouK!g Depending on size· - Q 1A 2 GMk.et:, HoiM!ng 720700 c 1B 12 SbJd. Housing B1609212100004l.J "ii a 1C 12 Nut. Hou$ina N19052121000000 :x: 10 1 Plua, Drain (optional) 721650

1E 1 Pk.lo. Neck CJ x 2x13 & 4x3x13 Onlvl 721650 2 1 lmoeller De ' ... on size

2A 1 Boll Impeller BOOF52121000028 28 1 Flatwaaher lmDaller W01052241312000 3 1 Bolt Stufrincl Box BOOF52081300020

3A 1 LockWasher. Stuffina Box I - 1•u1 --

i M3 1 Stuffing Box. Mechanical Seal 721350 - MJ.A , Mechanical Seel Anembtv 721540 I M3-A-1 Statiooary Seat .

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j M3-A-3 Rotatina seai Ring 6 M3-A-4 Catie Assemblv .. M3-A-5 Sorina

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~ M3-A.S Spring Retainer i ~ M3-A-7 Serina Pin ~ M3-B 1 Set Back-LID Paek.na 720441 ::2

~ P3 1 ,§_tuft'ing Box· Packed 721340 - I s , P3A 1 Packlno • K'ina 720470

Pecldng • Graphite 72()4.40 ~i Packina · T don 720500 P38 1 Grease Frtina- Paclcna 03990

! C) >- 4 1 Shaft Sleeve, 416SSC 721560 ~ . Seal, Shatt Sleeve -

U) J i 4A 1 721490 48 1 Seal lmoeller 721480 5 1 Padcina Gland 120590 6 2 Gland Bolt Aaemblv 720600 7 1 Deftedor 721040

7A 1 0-Rha DeftectDr 121500 8 1 Pedestal 720175

8A 2 Pkla Pedestal 721651

~ 9 1 Cover. Inboard Bearina 720780

9A 1 Seal, l~rd Bearing Exduaion 720370 98 1 Sul, Inboard Bearing Cover 720380 ~,.. -

] l5 9C , G•ket, lnboerd Bearina Cover 720670 90 2 Bolt Inboard Beama Covet" B03F52061600044 ji 9E 6 Flatwa&hef. Inboard Beama CoYer W01052140605000 9F 2 Nut. Inboard Bearilg Colier N19052061600000 9G , Grame Frttir:!QJnbo.-cl Beaq 720781

.5 - -- 9H 1 GrNM! Fdtinn Seel 720782 10 1 BeanlV'I Inboard 720300 11 1 Shaft 721227 11A 1 K&V. Shaft 721270

11!' l!'i 12 1 Houlina. Oucboard ~ 720800 12A 1 SealOutboardBearinoHouaing 721510

JIJ 128 2 Bott, hJ" , ... Outbo8rd Brnn.. Hm. B03FS2081300024 12C 2 JlllTI Nut N120S2081300000 120 2 Boll Atl8chrnenl Outboard tsma. HllO 803F52081300020

13 2 Bearina <Mboerd 720320 14 1 Nut, Bearing 721560

14" 1 LockwMher. BearRI Nut 721550

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