Articles by Bob Donnelly

I am looking for a ball valve for a high temperature fine solids pilot plant operation (~ 1" - 2" valve) that can withstand 550 C temperatures and abrasive solids. Any thoughts on a valve that can withstand this extreme service?

Please define "bubble-tight" service when we have butterfly valves. Does this apply only to ANSI rated high performance valves or does resilient seated valves also have such a rating?

What type of valve is suitable to maintain liquid level in a 7,000 gallon tank?

The extended size range of today’s pneumatic rack-and-pinion valve actuators that can now automate up to 32-inch butterfly valves, and up to 14-inch ball valves, offers an advantageous alternative to the large-size, scotch-yoke actuator mechanism that has been popular in industry for quite some time.

As an alternative to one-piece ball valve body designs, a new split-body valve series with a two-piece bolted-body design meets ANSI take-out dimensions for either a long full port or short reduced port pattern.