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October 30, 2023

FITT Resources Keeps Sydney Water Pumping

Category: Water and Wastewater

Sydney Water provides water and wastewater services to the Sydney metropolitan, Illawarra, and Blue Mountains regions with an operational area of approximately 13,000 km2. The network comprises water and wastewater treatment facilities, distribution/collection, and stormwater assets. In July 2020, Sydney Water launched its new infrastructure and delivery model – P4S: Partnering for Success. This program would simplify procurement, optimise value, and deliver $4 billion of construction works and services between 2020 and 2030. Water and wastewater specialists FITT Resources successfully tendered to undertake work in three main areas: the repair and overhaul of submersible, centrifugal, and positive displacement pumping units.

Photo: St Mary's Sewage Pump Station – Vertical split pump units, Chesterton 442 Split Seal and overhaul including ARC Industrial Coatings.

St Mary’s Sewage Pump Station – Vertical split pump units, Chesterton 442 Split Seal and overhaul including ARC Industrial Coatings.

Pump repair and overhaul using Chesterton® seals and packing

The scope meant FITT Resources would work on pumps from various manufacturers, all needing repair, maintenance and overhaul depending on the age, condition, location, and equipment use. Since their last overhaul in 2015, two tunnel pumps have started leaking excess glands due to shaft wear and packing degradation. As part of the ‘stop-gap’ solution, they were re-packed with the Chesterton DualPac® 2211 1″ section in a bull ring configuration at the bottom and sealing ring configuration on the top. This packing upgrade has been very successful in terms of the ongoing gland operation.

Photo: Main outfall pump packed gland upgrade to Chesterton 2211 DualPac®

Main outfall pump packed gland upgrade to Chesterton 2211 DualPac®

Photo: Main outfall pump packed gland upgrade to Chesterton DualPac® 2211

Main outfall pump packed gland upgrade to Chesterton DualPac® 2211

 

 

 

 

 

 

 

 

Chesterton 442 Split Mechanical Seal Program

FITT Resources was also tasked with upgrading and maintaining existing raw sewage pumps using Chesterton 442 Split Mechanical Seals. These pumps had been initially fitted with packing and then later cartridge seals. However, the decision was made to replace these with split mechanical seals. The seal set-up utilises either an API Plan 11 or 13, with close clearance or EnviroSeal SpiralTrac™ gland bushes. Additional benefits of the 442 mechanical split seals include protection and security for seal faces during installation, less heat under extreme pressure, and a compact gland design.

Photo: Chesterton 442 Split Mechanical seal

Chesterton 442 Split Mechanical seal

Photo: Vertical Sewage pump upgraded during overhaul with Chesterton 442 split seal, EnviroSeal SpiralTrac™ and Chesterton ARC ceramic coating

Vertical Sewage pump upgraded during overhaul with Chesterton 442 split seal, EnviroSeal SpiralTrac™ and Chesterton ARC ceramic coating

Photo: Potable Water pump overhauled with Chesterton ARC ceramic coating and 1810 cartridge seals

The potable Water pump was overhauled with Chesterton ARC ceramic coating and 1810 cartridge seals

 

 

 

 

 

 

 

 

 

 

 

 

Chesterton ARC Industrial Coatings

All sewage units were rebuilt and reclaimed using a Chesterton ARC industrial coating. This coating was chosen to ensure that reclaimed casings and impellers are in the best possible condition to provide prolonged operational life in harsh pumping environments. Chesterton ARC coatings also offer protection against erosion and corrosion attacks, making them ideal solutions for potable water and sewage pumps.

Photo: Vertical Sewage pump unit overhauled with hardened 420SS casing & impeller rings combined with ARC ceramic coating, reducing erosion wear.

A Vertical Sewage pump unit was overhauled with hardened 420SS casing and impeller rings combined with an ARC ceramic coating, reducing erosion wear.

Photo: Pump casing repair and coating process showing machined wear ring locations and ARC ceramic coating applied.

Pump casing repair and coating process showing machined wear ring locations and ARC ceramic coating applied.

Photo: Pump casing repair and coating process showing machined wear ring locations and ARC ceramic coating applied.

Pump casing repair and coating process showing machined wear ring locations and ARC ceramic coating applied.

 

 

 

 

 

 

 

 

 

 

The Results

Using Chesterton’s range increased efficiency, extended equipment life, and reduced downtime. The partnership between FITT Resources and Chesterton continues to be important and fruitful, with both companies constantly looking for ways to improve and innovate to increase plant operating life and reduce the cost of ownership.

Want to know more?

Contact us to explore comprehensive solutions and learn how we can assist your business. Connect with one of our specialists to find the perfect sealing solution tailored to your business needs.

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