Single Stem Bellows Globe Valve

Design Standards

Design and manufacturing standard: (GB/T 12235) 

Connection size: HG 20592 

Structural length: GB 12221 

Inspection and testing standard: GB/T 26480 

Helium mass spectrometer leak detection: API 600 

Pressure-temperature: GB/T 12224

Design Features

●Featuring a dual-seal design with metal bellows and packing, this valve ensures zero leakage for maximum reliability;

●The flow passage is optimized using computer-aided simulation (CAE). As a result, the optimized valve offers a 10% to 50% higher flow capacity and a significantly reduced flow resistance coefficient compared to valves of the same specification.

●Its compact design, characterized by a reduced overall height, requires less installation space,making it ideal for confined or space-limited piping layouts.

Main parts & materials

Valve body: ASTM A105, ASTM A182 F91/F304/F316/F316L

Bellows: ASTM A276 304/316/316L, ASTM A494 Hastelloy C-22

Valve stem: ASTM A276 304/316/316L

Sealing surface: stainless steel, stellite alloy

Packing: flexible graphite

Note: Assist customers in selecting specific materials based on their specific media

Applications

This valve is designed for handling flammable, explosive, permeable, and radioactive media. It is particularly advantageous for achieving zero leakage in transferring hot media like thermal oil, thanks to its reliable dual-seal design and excellent performance.