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NASH Case Studies – sharing experiences

Welcome to NASH’s case study files.

We hope they help you to understand why many engineered mechanical seal problems occur and how a range of repair and replacement solutions, along with advice on better operating conditions, can extend seal life and improve rotating equipment performance.

If you have questions about any case study – or a similar situation – please talk to us directly here.

We will be delighted to help you.

Home   |   Case Studies

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Oil & Gas

Cost-saving solution for ageing North Sea platform

Flowserve BWI/P GUHTW-4250 & BWI/P GU-3250

Savings of £450,000 were made by NASH’s upgrading and re-use of six Flowserve BWI/P GUHTW-4250 and Flowserve BWI/P GU-3250 seals used on MOL and MOL booster pumps operated by an ageing North Sea platform.

Read full case study
Pharmaceutical

Production maintained during upgrade

EagleBurgmann HSMR5S1-D1-400-KB2-A1 & HSMR5S1-130

A year-on-year £150,000 repair cost saving was made on EagleBurgmann HSMR5S1-D1-400-KB2-A1 and EagleBurgmann HSMR5S1-130 mechanical seals operating on another pharmaceutical maker’s high-dependency Krauss Maffei Vertical Cone Dryer.

Read full case study
Chemical

£140,000 of problems eliminated in four days

John Crane T151 Coaxial Cartridge

A problem causing £20,000 repair and £120,000 lost production costs due to three unnecessary John Crane T151 Coaxial Cartridge changes in three months was diagnosed and eliminated by NASH in four days.

Read full case study
Coatings & Inks

Reducing downtime while boosting performance

Buhler Cobra Mill Seal

Buhler Seal and Bearing Head problems on an ink manufacturer’s Buhler Cobra Vertical Bead Mill were resolved by NASH through an extension of seal life, reduced downtime and avoiding costly pressurised double seal unit upgrades.

Read full case study
Oil & Gas

Protecting North Sea crude oil production

John Crane Flexibox DRSP-1000

NASH eliminated significant unplanned outages on North Sea main oil line (MOL) pumps caused by poor John Crane Flexibox DRSP-1000 seal performance. MTBF was extended from four weeks to three years. Crude output losses stopped. Maintenance costs were cut.

Read full case study
Pharmaceutical

Swift turnaround meets pharmaceutical deadline

John Crane CK738G

NASH achieved a 50% reduction in barrier gas consumption by repairing John Crane CK738G seals and reconfiguring them as John Crane CK738GD seals on an Eire pharmaceutical maker’s six Pfaudler glass-lined reactors in just four-weeks.

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Coatings & Inks

24-hour response, analysis and advice

EagleBurgmann MR1SF5-125

Output was restored within 24-hours on a Netzsch LMZ Bead Mill suffering a EagleBurgmann MR1SF5-125 double seal unit failure through NASH’s guaranteed next-day assessment, repair and delivery service.

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Chemical

Swift action prevents severe production losses

Pfaudler Flexeal UF8

Another printing ink manufacturer’s plant downtime was reduced by NASH from four weeks to four days during a Pfaudler Flexeal UF8 seal cartridge refurbishment project on four newly-commissioned Pfaudler glass-lined reactors that saved potentially £600,000 in lost production.

Read full case study
Partnerships

Profitable 200K seal repair revenue stream for filter dryer manufacturer

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  • NASH Mechanical Seal Services Ltd, Nile Street, Bolton, Lancashire, BL3 6DW, England
    Company Registration Number: 01803027

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