GA00H28_Bellows Gate Valve_Steam System Valve_Neptune Valve丨Neptune Industrial Group Inc

Parameter

○ Nominal diameter: DN15 – DN300mm

○ Nominal pressure: PN16 – PN64 (corresponding to Class 150 – Class 300)

○ Applicable medium: steam, hot water, heat transfer oil, corrosive or toxic liquid/gas

○ Operating temperature: –40°C to +450°C (up to 540°C for high-temperature models)

○ Connection method: flange connection

○ Valve body material: WCB, stainless steel 304, 316L

○ Bellows material: stainless steel, special steel, alloy steel

○ Sealing form: Dual sealing with metal bellows and graphite packing

○ Valve stem structure: Overall extended valve stem, with length customizable

○ Operating mode: handwheel, electric, pneumatic

○ Design standards: API 600 / API 602 / BS 1414 / ASME B16.34

○ Test standard: API 598 or ISO 5208 (shell and seal test)

Performance

○ The extended valve stem design is suitable for special installation environments such as underground or deep trenches.

○ The bellows sealing structure effectively prevents medium leakage, ensuring zero leakage.

○ The gate plate operates smoothly with minimal flow resistance, making it suitable for fully open or fully closed conditions.

○ The valve body material is corrosion-resistant and can adapt to various acid-base and high-temperature media.

○ Flexible operation and long lifespan, with an extended rod that has undergone strengthening treatment for resistance to torsion and bending.

Application

○ The cutoff position for ground operation in buried steam or hot water pipe networks.

○ Control points for corrosive medium conveying systems within underground pipe trenches in chemical plants.

○ Maintenance and isolation of key parts of buried main steam pipelines in power plants.

○ Switching of high-temperature water or steam pipelines in valve wells of municipal heating systems.

○ Situations where remote manual operation is required for underground process pipelines in oil storage and transportation stations.