ST forging steel ball valve mainly has two - piece and three - piece forging steel floating ball valve;The surfaces are phosphated;
Flexible sealed floating ball valves and metal hard sealed floating ball valves are available according to the sealing material;
Full size or reduced size structure can also be selected as required.
Structural features:
1. The valve body is made of high-quality materials with phosphating treatment on the surface
2, ST floating ball valve using lip seal seat, sealing performance is good, low friction coefficient, small operating force
3. Fire prevention and anti-static device
4. The valve stem has a fly-proof structure
5. Handle indicating switch status.The flat - headed stem is well connected to the handle to ensure that the on-off state indicated by the handle is consistent with the valve.
6, floating ball valve is suitable for frequent operation, close and start quickly;Small in size and light in weight;Not subject to the direction of installation;Low fluid resistance, no vibration, low noise.
Design specification:
Design criteria: API 6D, GB/T 19672, GB/T 12237
Structure length: API 6D, ASME B16.10, GB/T 12221
Flange connection standard: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592
For welding connection standard: ASME B16.25, GB/T 12234
Fire protection requirements :API 6FA, API 607
Pressure test: API 6D, API 598, GB/T 13927, GB/T 26480
Performance parameters:
Main material: carbon steel, forged steel, duplex steel, aluminum bronze, etc
Nominal size: NPS 1/2 "~6" DN15~DN200
Pressure range: Class 150~600 PN10~PN100
Operating temperature: -29℃~+200℃
