• Face To Face: ASME 816.10. GB/T12221
• Flange Standard: ASME 816.5. GB/T9113
• Test: API598. GB/T13927
• Special molding process
• Fire safety design
• Trim with pressure balance holes
Installable Accessories
Solenoid Valve
Limit Switch
Positioner
Air-Filter Regulator
Hand Wheel
Pneumatic Valve, Fast Vent Valve Speed Control Valve