PNEUMATIC ANSI STAINLESS STEEL BALL VALVE
PRODUCT STRUCTURE
ANSI stainless steel valve body
Precision casting: valve body is integrally formed, inner wall is mirror polished (Ra≤0.6μm), flow resistance is reduced, and medium residue is eliminated.
Flange end face: RF raised flange/FF flat welding flange is optional, sealing face is clad with STL carbide, and the erosion resistance life is increased by 3 times.
Pneumatic actuator system
Actuator type: double acting/spring return (single acting) is optional, and standard interface is supported.
Intelligent control: integrated IP67 protection positioner, supports 4-20mA/Modbus signal feedback, and opening accuracy is ±0.5%.
Metal seal/soft seal dual solution
Metal seal: tungsten carbide ball + Stellite valve seat, temperature resistance 450C, pressure resistance
Class600, zero leakage (ANSIVI grade).
Soft seal: PTFE+graphite composite valve seat, -196C ultra-low temperature seal, FDA food grade certification.
TECHNICAL PARAMETERS
Design standard ASME B16.34, API 608
Pressure level Class150/300/600
Valve body material 304/316L stainless steel (optional duplex steel)
Connection method RF flange, butt welding (BW), thread (NPT)
Applicable media Steam, strong acid/alkali, liquefied gas, food slurry
Leakage level ANSI VI (soft seal), IV (hard seal)
Gas source pressure 0.4~0.7MPa (customizable high pressure type)
SOLVE INDUSTRY ISSUES
Chemical Industry
Challenges: Highly corrosive media such as chlorine-alkali and sulfur recovery can easily cause valves to rust and fail.
Solution: 316L stainless steel valve body + metal seal, passed NACE MR0103 standard, corrosion-resistant.
Food and Pharmaceuticals
Challenges: High media hygiene requirements, cross contamination must be avoided.
Solution: Mirror polishing + full bore design.
Ocean
Challenge: High salt spray environment accelerates metal oxidation and seals are prone to failure.
Solution: Ultra-low carbon stainless steel + EPDM sealing ring.
SELECTION
Confirm the media type: corrosive/non-corrosive, particulate content.
Determine the operating parameters: pressure, temperature, flow requirements (full bore or reduced bore).
Select the actuator: single-acting/double-acting, explosion-proof level, signal feedback requirements.
Adapter flange standard: match the national standard/American standard/German standard according to the pipeline interface.
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