metal seated butterfly valve (two-way hard-to-hard all-metal hard-sealed butterfly valve) overcomes various shortcomings of ordinary three-eccentric multi-layer metal hard-sealed butterfly valves. Its sealing ring is completely made of metal materials, and there is no PTFE, graphite, rubber The interlayer made of non-metallic materials such as asbestos boards will not cause damage to the sealing ring due to the erosion of high-speed fluid when the valve is fully open or partially open, and can adapt to high temperature (<800C) and low temperature (≥-196°C) ), high pressure (<PN260/Class1500), corrosive, etc., to meet the requirements of various working conditions.
Frequently Asked Questions
How do I confirm the supplied seat has the all-metal construction I require?
Request the exact seat and sealing-ring drawing and material list for the offered valve. Confirm any layers, backing or other sealing components rather than relying only on a hard-metal description.
Can I select this valve using the broad temperature and pressure examples on the page?
Ask for the documented limits of the exact body, trim and sealing arrangement at your conditions. A general description of possible service is not the rating of every product configuration.
What should I send if my service contains abrasive particles?
Provide the medium, solids content, particle characteristics, operating conditions and required duty. Request confirmation of the selected valve and its inspection and maintenance requirements rather than assuming a metal seat prevents wear.