James Walker SPS Ltd, Less leakage

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Less leakage
January 1st 2005

Fugitive emissions from hard working control valves can be cut to well below 50ppm, says James Walker, using the company’s Supagraf Control gland packing.

The packing is said to seal efficiently for more than 100 000 stem strokes without gland re-adjustment and its very low coefficient of friction enhances accurate valve movement.

Andrew Goulding, packings expert, confirms the leak tightness claim A five-ring set of Supagraf Control showed maximum emission levels of 10 to 15ppm without gland retightening after 1100 stem strokes with five thermal cycles from ambient to 160°C.

More articles from James Walker SPS Ltd:

Not enough gas to fill a golf ball (1st March 2008)

Supragraf Premier compression packing from James Walker has beaten TA-Luft VDI 2440 emission control requirements by a significant margin to gain an outstanding rating in independent tests carried out at the Amtec labo

From Plant process control

Gland packing (1st July 2007)

Totally carbon-based, the new Supagraf RibbonPak from James Walker provides high integrity sealing for steam valves at high temperatures and pressures. It also works as a long-life gland packing for high speed rotary pu

From Plant process control

Gland packing (1st July 2007)

Totally carbon-based, the new Supagraf RibbonPak from James Walker provides high integrity sealing for steam valves at high temperatures and pressures. It also works as a long-life gland packing for high speed rotary pu

From Plant process control

Shaft sealing for hydropower plants (14th December 2006)

Hydrosele is a shaft sealing system from James Walker that will, the company claims, cut maintenance and improve the reliability and profitability of Francis and Kaplan water turbines in hydropower plant across the world.

From Newsletter Stories

Shaft sealing for hydropower plants (1st November 2006)

Hydrosele is a shaft sealing system from James Walker that will cut maintenance and improve the reliability and profitability of Francis and Kaplan water turbines in hydropower plant across the world.

Simple to install and a

From Plant process control

Free booklet explains IPPC Directive (1st September 2006)

A free 24 page booklet explaining aspects of the EU Integrated Pollution Prevention and Control Directive is now available from James Walker to help companies through this legislation.

From Energy management

Easier to join (1st September 2004)

Split-type lip seals from James Walker are now easier to join around rotary shafts, using a modified fitting kit for the Walkersele OST (On-Site Joining) technique.

From Premises management maintenance

Virtually zero emissions (1st September 2004)

Third party tests on James Walkers Supagraf Premier valve stem packing have shown it to be a technically superior fugitive emissions control product. Emissions levels around the valve stem were so low that they challenged the sensitivity of the heliu

From Premises management maintenance

USA gaskets (1st July 2004)

USA-manufactured Topog-E boiler gaskets are supplied in the UK and across Europe by James Walkers companies and official distributors.

From Plant process control

BEARING PROTECTION (1st July 2004)

James Walker claims field trials of its new high efficiency Walkersele Ultraglide rotary lip seal on a hot steel mill show that it protects bearings for well over 18-months with no obvious signs of wear or damage.

From Plant process control