A48Y-64C閥
閥是一種保護(hù)用閥，它的啟閉件受外力作用下處于常閉狀態(tài)，當(dāng)設(shè)備或管道內(nèi)的介質(zhì)壓力升高，過(guò)規(guī)定值時(shí)自動(dòng)開(kāi)啟，通過(guò)向系統(tǒng)外排放介質(zhì)來(lái)管道或設(shè)備內(nèi)介質(zhì)壓力過(guò)規(guī)定數(shù)值。閥屬于自動(dòng)閥類，主要用于鍋爐、壓力容器和管道上，控制壓力不過(guò)規(guī)定值，對(duì)人身和設(shè)備運(yùn)行起重要保護(hù)作用。閥結(jié)構(gòu)主要有兩大類：彈簧式和杠桿式。彈簧式是指閥瓣與閥座的密封靠彈簧的作用力。杠桿式是靠杠桿和重錘的作用力。隨著大容量的需要，又有一種脈沖式閥，也稱為先導(dǎo)式閥，由主閥和輔助閥組成。當(dāng)管道內(nèi)介質(zhì)壓力過(guò)規(guī)定壓力值時(shí)，輔助閥先開(kāi)啟，介質(zhì)沿著導(dǎo)管進(jìn)入主閥，并將主閥打開(kāi)，使增高的介質(zhì)壓力降低。
A48Y彈簧全啟式閥簡(jiǎn)介
A48Y型帶扳手彈簧全啟式閥適用于工作溫度≤350℃的蒸汽、空氣等介質(zhì)的設(shè)備和管路上。A44Y型帶扳手彈簧全啟式閥適用于工作溫度≤300℃的空氣、石油等介質(zhì)的設(shè)備或管路上，作為壓保護(hù)裝置。連接法蘭標(biāo)準(zhǔn)PN＜6.4MPa按/T-94系列1。PN≥6.4MPa按/T-94系列2標(biāo)準(zhǔn)。
帶扳手彈簧全啟式閥相關(guān)型號(hào)：A48Y-16C A48Y-25 A48Y-40 A48Y-64 A48Y-100 A44Y-16C A44Y-25 A44Y-40 A44Y-64 A44Y-100 A44Y-16P A44Y-25P A44Y-40P A44Y-64P A44Y-100P A44Y-16R A44Y-25R A44Y-40R A44Y-64R A44Y-100R
帶扳手彈簧全啟式閥主要部件材料 Materials for main parts | ||||
. | Name of part | A48Y-C A44Y-C 材料 Materials | A44Y-P 材料 Materials | A44Y-R 材料 Materials |
1 | 閥 體Body | WCB | ZG1Cr18Ni9Ti | CF8M |
2 | 閥 座zzle | 2Cr13 | 1Cr18Ni9Ti | 316 |
3 | 調(diào) 節(jié) 圈 Adjusting ring | ZG2Cr13 | ZG1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
4 | 反 沖 盤 Disc holder | ZG2Cr13 | ZG1Cr18Ni9Ti | 316 |
5 | 閥 瓣Disc | 2Cr13 | 1Cr18Ni9Ti | 316 |
6 | 導(dǎo) 向 套Guide sleeve | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
7 | 閥 蓋Bonnet | ZG230-450 | ZG230-450 | ZG230-450 |
8 | 彈 簧 Spring | 50CrVA | 50CrVA包覆氟塑料 Coated Teflon | 50CrVA包覆氟塑料 Coated Teflon |
9 | 閥 桿Stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
10 | 扳 手Lever | ZG200-400 | ZG200-400 | ZG200-400 |
11 | 調(diào)整螺桿Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
12 | 保 護(hù) 罩Cap | ZG200-400 | ZG200-400 | 316 |
| 密封面材料 Sealing surface of material | 堆焊Co基硬質(zhì)合金 Depositing stellite | ||
20 | 10 | 125 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 96 | 85 | 297 |
25 | 16 | 140 | 100 | 58 | 78 | 22 | 2 | 4 | 4-18 | 32 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 110 | 100 | 310 |
32 | 20 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 40 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 130 | 110 | 322 |
40 | 25 | 170 | 125 | 76 | 95 | 24 | 3 | 4 | 4-23 | 50 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 135 | 120 | 352 |
50 | 32 | 180 | 135 | 88 | 105 | 26 | 3 | 4 | 4-23 | 65 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 155 | 135 | 425 |
65 | 40 | 205 | 160 | 110 | 130 | 28 | 3 | 4 | 8-23 | 80 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 |
80 | 50 | 215 | 170 | 121 | 140 | 30 | 3 | 4 | 8-23 | 100 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 175 | 160 | 560 |
100 | 65 | 250 | 200 | 150 | 168 | 32 | 3 | 4.5 | 8-26 | 125 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-25 | 195 | 195 | 690 |
150 | 100 | 345 | 280 | 204 | 240 | 38 | 3 | 4.5 | 8-34 | 200 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 280 | 265 | 935 |
