金屬密封浮動、固定式球閥   
ANSI VI 級密封性能   采用先進的球體研磨工藝球體和密封面達到極高的圓度和光潔度。
球體和閥座硬化技術   超音速噴涂、鎳基噴焊、硬質合金噴焊、高強高硬陶瓷加工的球體和閥座，表面硬度達到HRC60~74,耐溫540℃,最高980℃。
防止閥門高溫時脹卡   采用專利技術高溫時,零部件膨脹量，由特殊結構吸納,使開關靈活。
密封緊急救護     　　高壓固定式球閥帶有密封注脂孔，可修補密封面，保證密封還可清洗閥腔密封面。
ANSI VI Leakage      Advanced ball skiving craft, between the ball and the seal face, there appears roundness and cleanness. 
Vulcanize techniques on ball and seat ring     HRC60~74 on the surface, 540℃-980℃ 
Prevent bulge when meet high temperature     Adopts patent technical, the bulge of the parts was absorbed by special machinery, open and close flexibly
Repair seal          the seal face can be repaired

☆固定球閥球前雙向密封  ☆球腔內超壓釋放功能  ☆自然防靜電結構  ☆防火安全設計
Double directions seal    pressure relief    prevent static structure    Fireproofing design 
   

 密封性能可靠（見圖一）:PTFE彈性材料密封圈嵌于不銹鋼閥座內，金屬閥座尾端設有彈簧保證密封圈足夠的預緊力，閥門在使用過程中密封面磨損時，在彈簧作用下閥門繼續保證良好的密封性能。 
防火結構（見圖二）：為防止由于驟熱或火災的出現，使聚四氟乙烯密封圈燒毀，發生較大泄露，而助長火勢，在球體與閥座間設置防火密封環，在密封圈燒毀時在彈簧力作用下，將閥座密封環迅速推向球體上，形成金屬與金屬密封，起到一定程度的密封效果。耐火試驗符合API  6FA和API  607標準要求。
Seal is reliability (Picture one): PTFE O-ring was set in stainless steel seat ring, and there is spring at the end which makes the seal ring have enough tighten. Under the action of the spring the valve still has a good seal when the seal face is abrade.
Airproofing structure(Picture two):In order to prevent heat and fire from burning Teflon which makes leakage, fostering fire, we set fireproofing seal ring. When the seal ring was burnt, at the action of the spring, it drives the seal ring to the ball which makes the metal touches with each other. Fireproofing testing comply with API 6FA and API 607  

自動泄壓功能（見圖三）：當閥門中腔停滯的介質壓力異常升高超過彈簧的預緊力時，閥座后退脫離球體，達到自動卸壓的效果，卸壓后閥座自動復位。
可修補密封面（見圖四）：本閥門設計有輔助的閥座緊急密封系統，一旦密封受損或出現緊急情況而不能密封時，通過輔助密封系統向密封面注射相應的密封劑即可修復密封面，達到緊急密封。當輸送的介質不潔或含有少量顆粒時，為保護密封面，確保達到可靠的密封，還可給這一裝置注射相應的清洗劑或潤滑劑對密封面進行清洗。
Pressure Relief Automatically (Picture three):When the pressure inside the valve is much higher which exceeds the spring’s power, the valve seat is back ,breaking away from the ball. The pressures can relief automatically. At the same time, the seat is able to return automatically.
Seal face can be repaired (Picture Four): This kind of valve has assistant seal system. In case of emergency or the seal is damaged, the assistant seal system can repair the seal face. When the operating medium contains some granules, you can squirt lotion or lubricant to clean the seal face, making sure a reliable seal.