產品結構特點 Construction features 1、 超長壽命設計 閥座、密封圈由金屬材料制成，且做表面硬化處理，就算啟閉頻繁，閥門仍能保持高的密封性能，杜絕了多層次密封結構不耐沖刷等弊端，極大提高了閥門的使用壽命； 2、依靠扭矩密封 閥門至始至終都能保持的雙向密封性能，閥門密封不依靠介質力，由驅動裝置提供的扭矩實現(xiàn)密封，閥門在高、低壓下均能可靠密封。密封性能檢測結果符合API609、ISO5208等標準之規(guī)定； 3、閥座/密封圈可現(xiàn)場更換 可更換式閥座/密封圈設計，便于閥門現(xiàn)場維護保養(yǎng)； 4、填料密封的高性能 采用組合式填料密封系統(tǒng)，確保閥門泄漏率≤20ppm。可選用動載密封結構，使填料持久密封，延長填料免維護周期； 1. Long life design Seat, sealing completely made of metal materials, and surface hardening treatment, even if the opening and closing is frequent, can still maintain a high sealing performance of the valve, put an end to the multi-layer sealing structure not scour resistance and other shortcomings, greatly improve the service life of the valve; 2. Rely on torque seal Valve throughout can keep superior two-way sealing performance and valve sealing force does not rely on media, completely provided by the drive torque seal, valve can reliable sealing under high and low pressure. The sealing performance test results are in accordance with the standards of API 609 and ISO5208. 3. The seat/sealing ring can be replaced on siteReplaceable seat/sealing ring design to facilitate valve site maintenance; 4. High performance of packing seal The combined packing sealing system is adopted to ensure the maximum leakage rate of valve is less than 20ppm. The movable seal structure can be used to keep the stuffing durable and prolong the packing period. 產品特征 Spericfications 適用介質：水、氣、油品、天然氣和酸堿腐蝕性介質 適用溫度：-196~350℃ 驅動方式：手動、氣動、電動、液動等 公稱壓力：0.6~10.0MPa 公稱通徑：DN100~3600mm Applicable media: water, gas, oil, gas and acid and alkali corrosive medium Applicable temperature: -196~350℃ Driver: manual, pneumatic, electric, hydraulic, etc Nominal pressure: 0.6~10.0MPa Nominal size: DN100~3600mm 技術規(guī)范 Technical specification 試驗壓力 Test prssure 主要零件和材質 Main parts and materials
設計依據(jù) Design reference GB系列 GB series 設計標準 Design standard GB/T12238 JB/T8527 結構長度 Face to face GB/T12221 連接法蘭 End flange GB/T9113 HG20592 試驗和檢驗 Test & inspection GB/T13927 壓力等級
Pressure grade試驗壓力 Test pressure 公稱壓力 PN
Nominal pressure殼體試驗
Sheil test正密封試驗
Sealing test反密封試驗
Sealing test氣密封試驗
Air seal test1.0 1.5 1.1 1.1 0.6 1.6 2.4 1.76 1.76 0.6 2.5 3.75 2.75 2.75 0.6 4.0 6.0 4.4 4.4 0.6 6.3 9.45 6.93 6.93 0.6 10.0 15.0 11.0 11.0 0.6 序號
NO零件名稱
Accessor name材質 Material GB系列 1 閥體 Body WCB, CF8, CF3, CF8M, CF3M 2 蝶板 Disc WCB, CF8, CF3, CF8M, CF3M 3 閥座 Seat 堆焊, 13Cr, STL, F316 4 密封圈 Sealing ring 304/316+STL 5 壓板 Plate Q235, F304, F316, F316L 6 閥桿 Stem 20Cr13, 304, 316, 316L 7 圓銷軸 Taper pin 20Cr13, 304, 316, 316L 8 軸套 Bush bearing 鋁青銅 F2 自潤滑復合軸套 9 填料壓蓋 Gland WCB, CF8, CF8M 10 填料 Packing 石墨 橡膠 11 螺柱 Bonnet bolt 35#, 304, 316, 316L 12 螺母 Nut 45#, 304, 316, 316L
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雙向壓硬碰硬密封蝶閥系列 D343H/Y 產品信息
