Kitz Fugitive Emissions Solutions
100 ppm at no extra cost
Kitz Corporation of America's standard production specification for Gate, Globe, Check and Floating Ball valves is a maximum emission level of 100 ppm - at no extra cost.
As confirmation of our extensive in-house research and testing which began in 1992, Kitz has successfully completed and fully documented independent third party performance testing by Lloyd's Register of Shipping-Japan and Yarmouth Research and Technology in Maine.
Success Story
Further confirmation comes from an end user in Montreal Canada. Petromont, Inc. installed a 4" Class 150 API-600 Carbon Steel Gate valve on July 31, 1995.
The valve was installed in the vertical regeneration line of a Molecular Sieve Trap. The traps are used to eliminate any humidity from the gas stream before feed to the concentrate column. Other contaminants present in the sieve are ammonia and H2S. Normal operation calls for the valve to be normally open with no flow through. The pressure is 100 psig and the temperature could go as low as 20ºC.
Every one or two days, the valve is submitted to the regeneration stream, which is at 150 psig and -200ºC. The gas is mainly methane and hydrogen and the regeneration cycle normally lasts around 8 hours.
All test monitoring was conducted with a Foxboro 108 Organic Vapor Analyzer calibrated with methane. Testing with the valve in static position and the stem in motion were performed, both during normal operation and the regeneration cycle.
Test Results
8-01-95: Static position 0 ppm; stem in motion 3 ppm.
8-30-95: Static position 0 ppm; stem in motion 0 ppm.
2-08-96* Static position 2-10 ppm*; stem in motion 2-10 ppm*.
6-17-96* Static position 2-8 ppm*; stem in motion 2-8 ppm*.
6-15-97* Static position<2 ppm*; stem in motion 2-8 ppm*.
* The person conducting the tests commented that these readings may have been influenced from other valves located in close proximity.
Conclusion
6-27-97: Due to a change in the regeneration process, the valve was exposed to more severe conditions than first anticipated. In fact, the valve has been subjected to pressures as high as 275 psig. Even then, the emissions were not increased. The valve has exceeded the customers expectations in terms of emissions and the operators have not mentioned any problems operating the valve in two years of continuous service.

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