Bolted Bonnet Globe Valve, DIN 3356, GS-C25, PN16, DN50

Product Name: Bolted Bonnet Globe Valve, Bellows Sealed
Design Standard: DIN 3356
Body Material: GS-C25
Size: 2 Inch, DN50
Pressure: Class 150 LB, PN16
End Connection: RF Flange
Operation: Handwheel

The Bellows-Sealed Globe Valve incorporates advanced foreign technology and features a double bellows design, welded directly to the valve stem to maintain stable performance and prevent valve plug vibration. This innovative design ensures that the stem does not come into contact with the medium at high temperatures, guaranteeing zero leakage and enhancing reliability. The valve is built to withstand tens of thousands of switching cycles, offering exceptional strength and toughness.
The ergonomically designed handwheel improves ease of operation and extends the valve's service life. The bellows cut-off valve operates with a plug-shaped valve, featuring either a flat or conical sealing face. The valve moves straight along the fluid's centerline, making it one of the most widely used valve types due to its low friction between sealing surfaces during operation. This results in greater durability, smaller opening heights, ease of manufacturing, and manageable dimensions.
 

Technical Specifications

» Nominal Diameter: DN15–DN400 (1/2–16 Inch)
» Design Pressure: PN16–PN64 (Class 150–600 LB)
» Temperature Range: -29°C to 595°C
» Materials:
  Body: 1.0619, GS-C25, ASTM A216 WCB, WCC, A352 LCB, LCC, A351 CF8, CF8M, CF3, CF3M
  Bellows: SS 304, SS 316, SS 316L, etc
» End Connection: Flanged, Welded, or Threaded Ends
» Operation: Handwheel, Bevel Gear, Electric, Pneumatic
» Design and Manufacture: DIN 3356
» Inspection and Testing: ISO 5208, EN 12266
» Flanged Ends Dimension: DIN 2543, DIN 2544, DIN 2545
» Butt-Welded Ends Dimension: EN 12627
» Face-to-Face and End-to-End: DIN 3202, EN 558-1, ISO 5752
» Pressure-Temperature Ratings: DIN 2401
» Test & Inspection: DIN 3230
» Medium: Water, Gas, Oil, etc.
 

Product Features

» Reliable Performance & Aesthetic Design: Bellow-Sealed Globe Valves offer a well-balanced structure, reliable sealing, outstanding performance, and an attractive appearance.
» Versatile Material Options: With a wide range of cast body and trim materials available, KOSEN Bellow Valves provide economical solutions tailored to your process and steam system needs.
» Durable Sealing Surface: The sealing surface is hard-faced with chromium alloy, ensuring exceptional resistance to wear, corrosion, and friction, which enhances the valve's service life. Double sealing ensures tight shut-off for flawless operation.
» Advanced Stem Design: The valve stem undergoes quenching, tempering, and nitriding treatment, providing superior anti-corrosion and anti-friction properties.
» Optional Stem Position Indicator: For easy monitoring, an optional stem position indicator clearly shows the valve's on/off status for enhanced operational visibility.