The high-temperature steam bellows globe valve utilizes a fully metal bellows seal, capable of withstanding temperatures up to 600℃, with zero external leakage.
○ Nominal diameter: DN15-DN400mm
○ Nominal pressure: PN16-PN64 (corresponding to Class 150 – Class 300)
○ Applicable medium: superheated steam, saturated steam, high-temperature condensate
○ Operating temperature: ≤ 450 °C; high-temperature type can reach 540 °C
○ Connection method: flange
○ Valve body material: WCB, stainless steel
○ Valve stem material: stainless steel, alloy steel
○ Bellows material: stainless steel, alloy steel, special steel
○ Sealing form: full metal bellows seal + high temperature flexible graphite packing (double zero external leakage)
○ Operating mode: handwheel, bevel gear, pneumatic, electric
○ Medium flow direction: low inlet, high outlet
○ Design standard: API 602 / BS 5352 / ASME B16.34
○ Test standards: Shell test at 1.5×PN, seal test at 1.1×PN (as per API 598)
○ Designed specifically for high-temperature steam, it can operate stably at temperatures exceeding 500℃.
○ The fully sealed structure of the bellows prevents high-temperature steam leakage, ensuring safety.
○ The valve body and bonnet are forged as one piece, providing excellent resistance to thermal shock and thermal fatigue.
○ The valve core is guided accurately and reliably, ensuring smooth opening and closing without jamming and long service life.
○ Dual sealing of the packing chamber and bellows ensures zero leakage under extreme operating conditions.
○ High-temperature and high-pressure cutoff and regulation system for main steam pipeline of utility boiler.
○ Overheated steam delivery and reaction heating pipelines for petrochemical cracking units.
○ The steam supply system for drying cylinders in the paper industry requires high-sealing control nodes.
○ On the high-temperature steam setting and heating process pipelines in chemical fiber production.
○ High-temperature saturated or superheated steam pipeline in the waste heat recovery system of a steel plant.
The angle-type bellows globe valve adopts a right-angle flow passage design, saving space. With its built-in metal bellows sealing structure, it eliminates external leakage.
The steam bellows globe valve is specifically designed for high-temperature and high-pressure steam systems. It adopts an all-metal bellows sealing structure, effectively preventing medium leakage.
The bellows globe valve for natural gas utilizes a metal bellows sealing structure to prevent external leakage, making it suitable for gas pipeline systems.