產品結構特點 Construction features
1、上裝式結構,即閥門的主要部件——蝶板是經由閥體上部的矩形中法蘭口裝入體腔的,當閥門需要檢修時,無須將其從管線上拆下,只要花極少時間打開上蓋便能連閥桿帶蝶板從體腔中一起取出進行維修作業。
2、本閥門在進行維修作業的同時可以酌情保留管道中的介質,這便免除了使用方許多前期輔助工作,使維修變得較為簡捷。
3、在一些特定的場合,本閥門在進行搶修期間可以不影響管道系統的正常運行,只要在取出蝶板組合件后迅速封閉上口便可立即恢復管道的帶壓運行,使搶修閥門造成的效益損失降低到最小程度。
1. The structure of the jacket type, i.e., a major part of the valve, butterfly plate is through the body in the upper part of the rectangular flange mouth into the coelomic cavity when the valve is in need of repair, need to be removed from the pipeline, as long as spend very little time to open the cover can be along the valve stem and disc from the body cavity for repair work.
2. This valve can retain the medium in the pipe while maintaining the maintenance operation, which is exempted from many prophase auxiliary work of the user and makes the maintenance more concise.
3. On certain occasions, during to repair the valve can not affect the normal operation of the pipeline system, as long as the closed flowing rapidly after take out the disc assembly can be an immediate restoration of pipeline operation under pressure to make benefit loss caused to repair the valve is reduced to a minimum.
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:-196~150℃
驅動方式:手動、氣動、電動、液動等
公稱壓力:0.6~1.6MPa
公稱通徑:DN100~1600mm
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium
Applicable temperature: -196~150℃
Driver: manual, pneumatic, electric, hydraulic, etc
Nominal pressure: 0.6~1.6MPa
Nominal size: DN100~1600mm
技術規范 Technical specification
設計依據 Design reference | GB系列 GB series |
設計標準 Design standard | GB/T12238 |
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 |
試驗壓力 Test prssure
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 test |
0.6 | 0.9 | 0.66 | - | 0.6 |
1.0 | 1.5 | 1.1 | - | 0.6 |
1.6 | 2.4 | 1.76 | - | 0.6 |
主要零件和材質 Main parts and materials
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 | EPDM, NBR, PTFE |
5 | 壓板 Plate | WCB, CF8, CF8M, CF3M |
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 |
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 |