一、密封墊片簡介：
Description of sealing gasket
密封件作為管道和設備法蘭連接的主要元件，對密封起著重要作用。其密封系借助螺栓壓緊墊片，使墊片在螺栓壓緊力的作用下發生塑性或彈性變形以堵塞法蘭壓緊麵的縫隙而達到密封效果。
密封件主要有金屬纏繞墊、金屬包墊、高強石墨復合墊、聚四氟乙烯包覆墊、齒形墊、透鏡墊、金屬環墊、橢圓墊、橡膠石墨墊及填料等。
Sealing gasket is the main component connecting pipes and equipment's flanges, which is very important for sealing.
The function of sealing is under the help of pressing force from the bolts to make gasket undergoes plasticity or flexible
deformation and to plunge the gap of flange's clamping surface for the purpose of good sealing.
二、型號規格及技術參數
Type, specification and technical parameters of sealing gasket
型號 Type | 密封麵 Sealing face | 公稱壓力 PN(MPA) | 使用溫度 Applying temperature | 密封麵 Sealing face | |
纏繞墊 Wound gasket | 突麵RF 凹凸麵MF 榫槽麵TG | PN1.0-25.0 | ① 石墨≤500℃ graphite≤500℃ ② 石墨≤800℃ graphite≤800℃ ③ 四氟≤200℃ PTFE≤200℃ | GB4622. GB/T13403. JB4705. HGJ72 SH3407. SYJ14. JB/T4719. JB/T90 ANSIB16.20. JISB2404. JPI-7S | |
鋼墊 Steel gasket | 橢圓墊 Elliptical gasket | 環槽麵 Ring groove | PN2.0-42.0 | ≤650℃ | GB9128. SH3403. HGJ74. JB/T89. ANSIB16.20 |
八角墊 Octagonal gasket | |||||
楔形墊 Wedge-shaped gasket | APT-RX.BX | 2000LB | API-std’ 6A | ||
透鏡墊 Lens gasket | 透鏡麵 lens |
| JB90 DIN2696 | ||
齒形墊 Serrated gasket | 突麵、凹凸麵 RF,FM | PN6.3-16.0 | JB/T88. HGJ73. JPI-7S. DIN2697 | ||
平墊 Plate gasket | 突麵、凹凸麵 RF,FM | PN6.3-16.0 | 換熱器、鍋爐等設備用 Heat exchanger and boiler is for standby | ||
石墨負荷墊 Graphite loading gasket | 突麵RF 凹凸麵MF 榫槽麵TG | PN0.25-6.4 | C.S≤450℃ SS≤650℃ | HGJ70. DIN2690及取代各種標準的橡膠石棉墊及纏繞墊 HGJ70. DIN2690 and various standards of rubber asbestos gasket and wound gasket | |
波齒石墨墊 Corrugated graphite gasket | 突麵RF 凹凸麵MF 榫槽麵TG | PN.25-25.0 | -200℃-650℃ | 此產品為我公司根據德國資料開發的一種新產品，廣泛運用各種管道及設備法蘭密封 Designed by our company referring to Germany documents and applied to sealing for various pipes, equipments and flanges. | |
| 突麵RF | PN0.6-5.0 | ≤200℃ | SH3402. HGJ71. JIS | |
金屬包墊 metaled gasket |
| PN0.25-5.0 | -20℃-450℃ | JB/T4718. JB4706. ANSIB16.20. JIS | |
| 突麵RF 凹凸麵FM 榫槽麵TG |
| ≤350℃ | GB9126. SH3401. JB/T4720 JB4704. HGJ69. SYT12. ANSIB16.21. JPI-7S. DIN2690. JTSB2202等 | |
石墨填料 Graphite packing | 適用於高溫高壓閥門 Apply to high temperature and high pressure valve | ≤450℃ |
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石棉填料 Asbestos packing | 適用於高溫高壓閥門 Apply to high temperature and high pressure valve | ≤100℃ |
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四氟填料 PTFE packing | 適用於強腐蝕性介質 Apply to high temperature and high pressure valve | ≤260℃ |
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