Features

The performance pressure seal bonnet Globe valves

Pressure seal bonnet globe valves have the same application Features as bolted bonnet valves shown on this page. The major difference is that the bonnet retention is designed for high-pressure, high-temperature service.

The pressure seal bonnet joint eliminates the body/bonnet flanges, reducing weight and simplifying the application of exterior insulation. Contrary to bolted bonnet valves, internal pressure applied to a pressure seal valve forces the sealing elements into tighter contact-the higher the internal pressure, the tighter the seal.

DONG-A VALVE cast steel pressure seal valves comply with the design and test requirements of ASME B16.34 and the installation dimensions of ASME B16.10.

All DONG-A VALVE pressure seal globe valves have the feature shown below. They are engineered to provide convenience, durability and maintainability.

Basic Design