James Walker SPS Ltd, Not enough gas to fill a golf ball

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Not enough gas to fill a golf ball
March 1st 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 laboratory in Germany. Recorded gas emission levels in tests at 240 and 400°C would not fill a golf ball or tennis ball in a year.

Tests on a set of 56mm OD Supagraf Premier rings were undertaken for BP Refining & Petrochemicals, which operates the Ruhr Oel Gelsenkirchen refinery in Germany and needed to know the sealing efficiency of graphite valve packings.

The target was to confirm TALuft leakage rates of less than 10-4mbar.l/(s.m) at sealing system temperatures below 250°C, and less than 10-2mbar.l/(s.m) at above 250°C. Leakage measurements after 24h at 240°C showed 7.0 x 10- 6 mbar.l (s.m) and, at 400°C the rate was 2.3 x 10-5mbar.l(s.m).

More articles from James Walker SPS Ltd:

Definitive guide published for rotary sealing applications (5th May 2009)

A new publication is proving an essential time-saving tool for engineers working on rotary sealing issues. The new guide, from fluid sealing specialist James Walker, has been published in two parts and focuses on the company’s Walkersele high-efficiency radial lip seals...

From Newsletter Stories

Rotary sealing application guide (1st May 2009)

A new guide for engineers working on rotary sealing issues from fluid sealing specialist, James Walker, has been published in two parts. It focuses on the company's Walkersele high-efficiency radial lip seals.

From Plant process control

Replacement seals (1st March 2009)

Replacement dome seals for use in the food and pharmaceutical sectors are now available from James Walker Keaflex.Made from Elast-O-Pure, an ethylene-propylene (EPDM) synthetic rubber, the seals are available in a wide

From Plant process control

24/7 joint expansion hotline (1st November 2008)

Engineers concerned with the health of an expansion joint can now ring an emergency response line. The new service from James Walker Townson offers inspection of the problem within 24h, anywhere in the UK.

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

Less leakage (1st January 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.

From News

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