詳細(xì)介紹
■概述
A21H彈簧微啟式外螺紋安全閥適用于工作溫度≤
■結(jié)構(gòu)圖片
■主要零部件材料
NO. | 零件名稱 | A21H-C/A | A21W-P/A | A21Y-R材料 |
1 | 管接頭 | 20 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
2 | 管接頭螺母 | 35 | 2Cr13 | 1Cr18Ni9Ti |
3 | 閥座 | 35 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
4 | 閥體 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
5 | 閥瓣 | 2Cr13/2Cr13+PTFE | 1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE | 1Cr18Ni12Mo2Ti |
6 | 彈簧座 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
7 | 彈簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
8 | 鎖緊螺母 | Q235-A | ZG230-450 | 1Cr18Ni9Ti |
9 | 彈簧導(dǎo)向墊 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
10 | 調(diào)節(jié)螺母 | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
| 密封面材料 | "Y"型堆焊Co基硬質(zhì)合金,"H"型堆焊D507,"W"型為閥門本體 |
■外形尺寸和連接尺寸
型號 | 公稱通徑 | do | d | Do | M | d1 | D1 | L | L1 | ≈H |
KA21 | 15 | 12 | 15 | 20 | M27×1.5 | G1/2" | 30 | 35 | 76 | 66 |
20 | 16 | 20 | 25 | M33×1.5 | G3/4" | 35 | 40 | 87 | 68 | |
25 | 18 | 25 | 31 | M39×1.5 | G1" | 40 | 50 | 100 | 105 | |
A21Y | 15 | 10 | 15 | 25 | M39×1.5 | G1" | 44 | 50 | 100 | 66 |
20 | 10 | 20 | 31 | M39×1.5 | G1" | 44 | 50 | 100 | 68 | |
25 | 12 | 25 | 31 | M39×1.5 | G1" | 44 | 50 | 100 | 105 | |
A21W-160/160P A21W-320/320P | 15 | 8 | 20 | / | M24×2 | G1" | 44 | 50 | 100 | 261 |
20 | 8 | 25 | / | M33×2 | G1" | 44 | 50 | 100 | 261 | |
25 | 8 | 28 | / | M36×2 | G1" | 44 | 50 | 100 | 285 |