by bitboyz | Apr 10, 2017 | Spring 2017
Valves that used to cycle once or twice a year now cycle multiple times a day. High-cycle activity is not good for metal pressure seals. They wear-out, leak or gall and could become one with the valve. It can do major damage to the bonnet cavity and removal can...
by bitboyz | Mar 31, 2017 | Spring 2017
About 25 years ago, we engineered the first of many graphite pressure seals for nuclear service. The US Navy felt that the silver-coated metal seals they had been using were far too heavy. And, and the silver coating, which provided a secure seal on imperfect valve...
by bitboyz | Mar 23, 2017 | Spring 2017
A valve was over-pressurized in a west coast nuclear power plant. It led to an extreme condition called out-of-round in the pressure seal cavity. They called the manufacturer but there was no way to machine the cavity back to accepting a metal seal. And, it would...
by bitboyz | Mar 16, 2017 | Spring 2017
1. It’s the perfect replacement for any metal seal. Thermafoil® flexible graphite is the perfect direct-replacement for any metal pressure seal. With our proprietary process we engineer every VSG Pro, using valve body and bonnet component dimensions. So, the installer...
by bitboyz | Mar 9, 2017 | Spring 2017
Industrial Valve Sales and Service of Mobile, Alabama does valve repairs for a host of power generation, refining, and pulp and paper plant facilities. During the week of Thanksgiving, they were doing routine maintenance during a plant outage at South Mississippi...
