On the occasion of Dervos Valve’s 17th anniversary, we proudly continued our tradition by inviting partners from Australia, Turkey, Italy, Russia, Argentina, South Africa, the United States, and other countries to gather in the ancient city of Xi’an to witness this milestone together. This event was not only a continuation of long-standing partnerships but also a testament to mutual trust.     Dervos warmly welcomed our global partners, and through in-depth exchanges, both sides further deepened cooperation and understanding. The gathering showcased Dervos’ openness as a global valve brand and its confidence in sharing Chinese culture.   To help our overseas guests gain deeper insights into Chinese heritage, we thoughtfully organized a cultural tour of Xi’an. Highlights included visits to the UNESCO-listed Terracotta Warriors, a walk atop the ancient city wall, scenic views at the Giant Wild Goose Pagoda, and hands-on experiences such as trying on traditional Hanfu attire—activities that were greatly enjoyed by our international friends.   In front of the Terracotta Army of Emperor Qin Shi Huang, our guests were deeply impressed and inspired as they carefully admired the grandeur of this underground legion. Captivated by its majestic scale and historical significance, they took group photos to commemorate the moment—creating unforgettable memories of this awe-inspiring experience.     Guests strolled leisurely beneath the Xi’an City Wall, taking photos and sharing conversations, while enjoying the rich blend of history and culture that surrounds this ancient landmark.     Guests strolled leisurely beneath the Giant Wild Goose Pagoda, soaking in the unique charm of Xi’an where history and culture intertwine.     Guests strolled leisurely beneath the Giant Wild Goose Pagoda, soaking in the unique charm of Xi’an where history and culture intertwine.     The first leg of Dervos’ 17th anniversary celebration came to a successful close, leaving every participant with joyful memories. More than just a journey, the Xi’an visit deepened the trust and friendship between Dervos and its global partners.       The Xi’an journey marks only the beginning of Dervos’ 17th anniversary celebrations—more exciting events are on the way. We sincerely thank every partner for your continued support. Let us witness our growth together and stride toward a broader, brighter future.  

In a major copper-gold mining project in Indonesia, DERVOS supplied multiple high-performance triple offset metal seated C95500 butterfly valves, which were applied in slurry transportation and process pipeline systems. The operating conditions on site are highly challenging, with media containing a large number of solid particles, posing significant risks of abrasion and corrosion. The valves were required to offer excellent wear resistance, corrosion resistance, and bidirectional zero leakage sealing performance.   As a professional triple offset butterfly valve supplier, DERVOS VALVE provided a customized solution tailored to the client’s specific needs, ensuring stable system operation even in such harsh environments. Client Need In a large-scale copper-gold mining project in Indonesia, DERVOS supplied multiple high-performance C95500 triple offset metal seated butterfly valves, specifically engineered for slurry transportation and process pipeline systems. The site presented extremely demanding conditions, with media containing high concentrations of solid particles—posing serious challenges related to abrasion and corrosion. To meet these requirements, the valves were designed to deliver exceptional wear resistance, corrosion resistance, and bidirectional zero-leakage sealing performance.   As a trusted triple offset butterfly valve manufacturer, DERVOS VALVE delivered a customized valve solution precisely tailored to the client's operational needs, ensuring long-term reliability and stable system performance under harsh industrial environments.   Devos Solution DERVOS custom-engineered triple offset nickel-aluminum bronze metal seated butterfly valves for this project, featuring C95500 nickel-aluminum bronze valve bodies and F53+STL hard-faced welded seats, specifically designed for highly corrosive and abrasive environments.   Triple Offset Butterfly Valve – DN900/DN1500, 150LB, FF, API 609 Standard • Size: DN900 • Pressure Rating: 150LB • Design Features: Triple offset structure with bidirectional, zero-leakage • sealing under equal pressure.• Equipped with independent seat material: F53 + STL hard-facing. Operated via gear box. Connection Type: FF (Flat Face) dual flange ends. • Special Requirements:    Face-to-face dimension per ISO 5752 (short pattern)    Heat-treated and annealed castings   Excellent Wear and Corrosion Resistance The valve body is made of C95500 nickel-aluminum bronze, known for its high strength, hardness, and outstanding wear resistance. It also offers excellent resistance to cavitation erosion and flow-induced corrosion.In addition, C95500 exhibits good ductility and toughness—maintaining high mechanical strength while providing a certain degree of plasticity and impact resistance, which helps prevent brittle failure.It demonstrates superior corrosion resistance in harsh media such as slurry, brine, an...

산업 생산에서 밸브는 유체 제어에 필수적인 부품이며, 밸브의 밀봉 성능은 시스템 안전과 안정성에 직접적인 영향을 미칩니다. 누출은 운영 효율성을 저하시킬 뿐만 아니라 유체 누출로 이어져 심각한 안전 위험을 초래할 수 있습니다. 이 기사에서는 밸브 누출의 세 가지 일반적인 원인을 간략하게 설명하고, 문제를 신속하게 식별하고, 조치를 취하고, 위험을 완화하는 데 도움이 되는 비상 대응 권장 사항을 제공합니다. 1. 씰 표면 마모 또는 손상 원인: 장기 작동 중에 씰링 쌍(예: 밸브 시트와 디스크, 밸브 볼과 시트)은 매체 침식, 입자 마모 또는 부식으로 인해 씰링 표면이 고르지 않고 사소하거나 심각한 누출이 발생합니다. 비상 조치: · 사소한 누출: 압축력을 조정하여(예: 보닛 볼트를 조여) 누출을 일시적으로 줄입니다. · 심각한 누출: 즉시 시스템을 종료하고 밀봉 부품을 교체하거나 재연마하세요. 필요한 경우 밸브 전체를 교체하세요. 예방 권장 사항: 정기적인 검사를 실시하고 선택하십시오 밸브 적절한 재질과 내마모성 설계를 사용하십시오. 고체 입자가 포함된 매체의 경우, 견고한 밀봉 구조를 사용하십시오. 2. 패킹 노화 또는 글랜드 느슨해짐 원인: 밸브 스템 밀봉에는 흑연, PTFE 등의 패킹재가 사용되는데, 이러한 패킹재는 장기간 사용 시 노화, 건조 또는 균열이 발생할 수 있습니다. 또한 온도 변화로 인해 글랜드가 느슨해져 패킹 박스에서 누출이 발생할 수 있습니다. 비상 조치: · 패킹 글랜드 볼트를 조여 패킹 압축을 증가시킵니다. · 효과가 없을 경우, 포장재를 추가하거나 교체하세요. · 작동 토크 증가나 스템 손상을 방지하려면 과도한 조임을 피하세요. 예방 권장 사항: 패킹을 정기적으로 교체하십시오. 매체 및 작동 온도에 적합한 재질을 선택하십시오. 중요 장비에는 스프링 장착 패킹 글랜드를 고려하십시오. 3. 밸브 본체/보닛의 주조 결함 또는 부식 천공 원인: 일부 저품질 밸브에는 모래 구멍이나 수축공과 같은 주조 결함이 있습니다. 부식성 매체에 장시간 노출되면 밸브 본체에 국부적인 천공이 발생하여 제어할 수 없는 누출이 발생할 수 있습니다. 비상 조치: · 작은 누수의 경우 금속 접착제나 냉간 용접을 이용한 임시 수리가 가능합니다. · 대규모 손상의 경우 즉각적인 밸브 교체가 필요합니다. · 고압 또는 독성/위험 매체의 경우, 가압 수리는 허용되지 않습니다. 종료 절차를 엄격히 준수하세요. 예방 권장 사항: 평판이 좋은 제조업체의 밸브를 구입하고, 내식성 재질(예: 304/316L 스테인리스 스틸)을 사용하십�