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Fully Welded Ball Valves

DN300 Welded Ball Valve

  • Zero Leakage Design: Fully welded structure with no external leakage points and excellent sealing performance
  • Medium-large Diameter: DN300 diameter meeting medium flow requirements
  • Maintenance-free: Integrated structure requiring no routine maintenance
  • Strong Corrosion Resistance: High-quality materials resistant to various corrosive media
  • Flexible Operation: Flexible opening/closing with small operating torque
  • Safe and Reliable: Strict quality control ensuring safe operation
Download Spec

DN300 Welded Ball Valve is a medium-large diameter fully welded ball valve with an integrated structure design, directly connected to the pipeline through welding with no external leakage points. The product is suitable for medium flow and medium-high pressure pipeline systems, widely used in city gas networks, industrial pipelines, chemical plants and other applications. The DN300 welded ball valve features zero leakage, maintenance-free operation, and corrosion resistance, capable of stable operation in various harsh environments. The ball is manufactured using high-quality stainless steel materials and precision machining to ensure excellent sealing performance and operational flexibility. The product is strictly manufactured according to international standards such as API and ASME to ensure product quality and safety performance. The valve is an important component of modern pipeline systems, especially suitable for critical applications with high sealing requirements.

Technical Standards

Item Technical Standard
Nominal Diameter DN300 (12")
Nominal Pressure 150Lb-900Lb
Operating Temperature -29℃ to +200℃
Applicable Media Natural gas, oil, water, steam, etc.
Body Material A216 WCB, A352 LCB, A182 F304
Ball Material A182 F316, A182 F316L, A182 F327
Seal Material PTFE, RPTFE, Reinforced PPL, Metal Seal
Connection Type Fully Welded Connection
Operation Method Manual, Worm Gear, Pneumatic, Electric
Design Standard ASME B16.34, API 6D, GB/T 12237

Basic Models

Model Type Features
FWBV-300-150 150Lb DN300 Welded Ball Valve Low pressure application, cost-effective
FWBV-300-300 300Lb DN300 Welded Ball Valve Medium pressure application, stable performance
FWBV-300-600 600Lb DN300 Welded Ball Valve High pressure application, high strength
FWBV-300-900 900Lb DN300 Welded Ball Valve Ultra-high pressure application, safe and reliable

Main Components Material Table

No. Part Name Material
1 Valve Body A216 WCB, A352 LCB, A182 F304
2 Ball A182 F316, A182 F316L, A182 F327
3 Valve Stem 440C, 17-4PH, A564 XM-19
4 Sealing Ring PTFE, RPTFE, Reinforced PPL, Metal Seal
5 Packing Flexible Graphite, PTFE
6 Handle/Actuator Carbon Steel, Stainless Steel, Cast Iron
7 Fasteners A193 B7, A193 B8, A193 B8M
8 Internal Coating Hard Chrome, Nickel-based Alloy

No drawing available.