Valve service life of less than 6 months due to corrosion from high-sulfur crude oil is a major pain point in petroleum extraction. OUWEI's R&D sulfur-resistant fully welded ball valve features a duplex steel 2507 valve body and a nickel-based alloy surfacing seal face, and is certified to NACE MR0175 for hydrogen sulfide resistance. It delivers outstanding performance under the extreme working conditions of the Tarim Oilfield: a corrosion rate of ＜0.03mm/year for the valve body, achieving zero replacement for 3 years; a pneumatic actuator that completes opening and closing in 0.5 seconds for high-efficiency operation; and compliance with API 6FA fire test standards, maintaining sealing integrity in 1000℃ open flame to realize zero leakage.
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