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一、執行標準：
1、設計和制作：GB/12237-1989； API1608
2、檢驗和試驗：GB/T13927-1992； API1608
3、法蘭連接：JB/T79.1-2 -1994； ASME/ANSIB16.5
4、結構長度：GB/T12221-1989； ASME/ANSIB16.10
二、產品說明：
雙偏心式辦球閥是近年來看法的*產品，以其設計合理，結果*，具有流通阻力小，密封性能好，使用壽命長等特點，利用偏心閥體和閥座、閥桿作旋轉運動時在共同軌跡自動定心，關閉過程中越關越緊，*達到良好的密封目的，閥門的球體于閥座*脫開，消除了密封副的磨損，克服了傳統球體閥座與球體密封免始終磨損的問題非金屬彈性材料被嵌于金屬座中，閥座金屬密封面受到良好的保護，偏心半球體特別適用于鋼鐵業、鋁業、纖維、微少固體顆粒、紙漿、煤灰、石油氣等介質的閥門。
百信閥門廠位于中國泵閥之鄉，本公司是一家集科研、制造、銷售各種球閥的專業廠家，具有豐富的閥門生產經驗、設備精良、工藝*、技術力量雄厚、檢測設備完善，優良的產品性能和完善的服務，深受用戶的好評和信賴。
本廠堅持以市場為核心，以誠信為根本，使產品的*逐步提高，我們將本著“互惠互利、誠信*”的原則，竭誠歡迎各企業單位，商界同仁蒞臨參觀考察合作，誠邀有識之士加盟，共創美好未來！
Yongjia Baixin Valve Factory lying in the township of the chinese pump valve,our factoru is that one collects scientific reserrch,specialized factories of different ball valves of sale,there is aboundant valve that produces experience,superior equipped,the advanced person of the craft,technical force are rich,the checkout equipment is perfect,the fine properties of product and perfect service,win favorable comment and trust from user deeply.
Our factory insist on core of regarding marker as,is it at all,make occupation rate of market,products raise progressively ro regard sincerity as,we will welcome with open arms the unit of every enterprise in line with the principle that"the mutual reciprocity and mutual benefit,sincerity is the highest",the colleague of business circles visits the cooperation of investigating presently,invite knowledgeable people to jion sincerely,create beautiful future!
各種球閥
BQ640雙偏心半球閥 產品信息
