3、啟閉壓差≤15%
4、選用優質的彈簧鋼,保證彈簧的壽命和穩定性
5、平面結構的閥瓣和閥座易于維修和重新加工
【彈簧微啟式螺紋安全閥型號】
A21F-16C
KA21F-16C
KA21F-16P
A21H-16C(25,40,64,100)
A21Y(H,W)-16P(25P,40P,64P,100P)
A21Y(H,W)-16R(25R,40R,64R,100R)
A21Y(H,W)-16R3(25R3,40R3,64R3,100R3)
【彈簧微啟式螺紋安全閥整定壓力等級】
公稱壓力(MPa) | 彈簧整定壓力等級(MPa) | |||||||
1.6 | 0.06~0.1 | 0.1~0.16 | 0.16~0.25 | 0.4~0.6 | 0.6~0.8 | 0.8~1.0 | 1.0~1.3 | 1.3~1.6 |
2.5 | 1.3~1.6 | 1.6~2.0 | 2.0~2.5 | | | | | |
4.0 | 1.3~1.6 | 1.6~2.0 | 2.0~2.5 | 2.5~3.2 | 3.2~4.0 | | | |
6.4 | 2.5~3.2 | 3.2~4.0 | 4.0~5.0 | 5.0~6.4 | | | | |
10.0 | 4.0~5.0 | 5.0~6.4 | 6.4~8.0 | 8.0~10.0 | | | | |
16.0 | 10.0~13.0 | 13.0~16.0 | | | | | | |
32.0 | 16.0~19.0 | 19.0~22.0 | 22.0~29.0 | 29.0~32.0 | | | | |
【彈簧微啟式螺紋安全閥性能參數】
NO. | 零件名稱 | A21H-C/A21F材料 | A21W-P/A21F-P材料 | 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 | 彈簧導向墊 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
10 | 調節螺母 | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
| 密封面材料 | "Y"型堆焊Co基硬質合金,"H"型堆焊D507,"W"型為本體 |
【彈簧微啟式螺紋安全閥主要外形連接尺寸】
DN15~DN25
型號 | 公稱通徑 | do | d | Do | M | d1 | D1 | L | L1 | ≈H |
1.6MPa | 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 | |
6.4MPa | 15 | 10 | 15 | 25 | M39×1.5 | G1/2" | 44 | 50 | 100 | 66 |
20 | 10 | 20 | 31 | M39×1.5 | G3/4" | 44 | 50 | 100 | 68 | |
25 | 12 | 25 | 31 | M39×1.5 | G1" | 44 | 50 | 100 | 105 | |
16.0MPa | 15 | 8 | 20 | / | M24×2 | G1/2" | 44 | 50 | 100 | 261 |
20 | 8 | 25 | / | M33×2 | G3/4" | 44 | 50 | 100 | 261 | |
25 | 8 | 28 | / | M36×2 | G1" | 44 | 50 | 100 | 285 |
DN32~DN80(1.6MPa,2.5MPa,4.0MPa)
公稱通徑 | 尺 寸(mm) | |||||
DN(mm) | do | R | L | L1 | G | H |
32 | 20 | 1-1/4” | 50 | 85 | 1-1/4" | 312 |
40 | 25 | 1-1/2“ | 55 | 100 | 1-1/2“ | 322 |
50 | 32 | 2” | 67 | 112 | 2 | 348 |
65 | 40 | 2-1/2“ | 76 | 135 | 2-1/2“ | 370 |
80 | 50 | 3” | 110 | 145 | 3" | 410 |
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