AHPB brochure - WEIR Oil & Gas - #1

the foundation of the company

Pompe Gabbioneta has been engaged in design and

The AHPB, AHPB-DS line heavy duty barrel pumps are multistage, radial split, diffuser type with single or double entry 1^ststage impeller, fully designed according to latest Edition of API 610 Std. Pump components geometry optimised through hydraulic, structural, thermal and dynamic F.E.M. analysis lead to an high product reliability.

The "modular design" philosophy permits to cover a wide range of applications replacing the main hydraulic components i.e. only impeller/diffuser. Casing, shaft, mechanical seals, bearing frames result therefore fully interchangeable and reusable.

A wide range of sizes, number of stages and material combinations complete the variety of the offered product.

Main design features are:

■ Opposed impeller and diffuser configuration to minimise axial and radial hydraulic thrusts.

■ Large eye single suction or double suction 1^st stage impeller to meet low NPSH requirements.

■ Hydraulic performances checked on a Single Stage Test Equipment. This is particulary useful to verify the effective 1^st stage NPSHR.

^■ Full cartridge design.

■ Easy maintenance procedure.

■ Number of stages rangeable from 4 to 14.

■ Shrink fitted impellers for higher operational speed (over 4500 rpm).

■ "Stiff shaft" design. Rotor operates below it's 1^st wet critical speed.

■ Central and lateral balancing drums adequately shaped to optimise pump rotordynamic behaviour.

^■ Barrel forged in suitable material to improve stress and corrosion resistance.

■ Centerline casing mounting for high temperature stability.

■ Deep stuffing boxes, designed in accordance to API 682 Std., suitable to accept any type of mechanical or packing seals.

^■ Labyrinths and deflectors at either bearing housing to maximise protection against dirt.

■ Three bearings arrangements available:

manufacture of high quality centrifugal pumps.

The products and the markets served progressively changed from water to chemical industry and finally,

in the last thirty years, to API 610 heavy duty pumps for refinery and petrochemical industries.

The product development is based on a thorough interchange of marketing and operating experience

within the company and in close cooperation with project and plant engineers.

The manufacturing is made in a factory equipped with several modern cnc machines and machine tools,

special note has to be given to the machining centers where pump casings can be machined

completely with only two settings.

In house facilities are designed to meet the performance and NPSH testing requirements of all pumps manufactured in the company in full compliance with API 610 standards.

A quality assurance system certified in accordance with ISO 9001 is granting the achievement of highest quality for manufactured pumps.

Q

I

CÛ

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X

m

CL X <

TDH (m)

5000 4000

3000

1. Ball Radial / Ball Thrust

2. Sleeve Radial / Ball Thrust

3. Sleeve Radial / Tilting Pads Thrust (Kingsbury Type).

1003

5O0 400

300

. An example of solid model: half-crossover/diffuser created by I-DEAS Master Modeler.

. An example of a 3D mesh generated by I-DEAS Finite Element Modeling: solid elements (" triangle and linear quadrilater) ;

■ fluid transport

■ refineries

■ petrochemical plants

■ power plant boiler feedwater

■ water injection

■ reverse osmosis

■ "hot" charge

. Results of a Static Analysis: the different levels of stresses (Von Mises) are displayed on the model using the capability of I-DEAS Post Processing.

200 3O0

500

200C

Capacity (m³/h)

POMPE GABBIONETA Inc

17 South Biar Hblcw Ln., Ste 207 Houston Texas 77027 Teephone 001.713.3554900 Teefax 001.713.3556200 e-mail: wcat20@ab.cbm

POMPE GABBIONETA

Ftegistered Office: \fale Gramsci 79 Headquarters: \fale Casiraghi 68 23099 Sesto San Govanni MI Italy Teephone +39 02.241001 r.a Teefax +39 02.2424550

e-mail: pcmpegabbicnetaSpcmpegabbicnetaccm

http://www.pcmpegabbicnetaccm

RI. MI n.° 90297/1999 REA MI n° 1584044

Ocdice Rsrale 12759010155

Raiita IVA - VAT IT 02894200969