详细说明
不锈钢弹簧微启式外螺纹安全阀(A21W-16P)
系列型号:A21F-16C A21H-16C A21H-40C A21H-64C A21Y-100C A21H-160C A21W-16P A21W-40P A21F-40P A21W-64P A21W-100P A21W-160P
KA21Y-16CKA21Y-16PA21Y-16RA21Y-40RA21Y-64RA21Y-100RA21Y-160R
A21F、A21H-C型适用于工作温度≤200℃的空气、氨、石油气……等介质的设备或管路上。A21W-P、R型适用于温度≤200℃有腐蚀性的气体或液体的设备或管路上，作为超压保护装置。
KA21Y型适用于温度≤100℃的液化石油气等。
不锈钢A21W弹簧微启式外螺纹安全阀主要零部件材料 Explanation of materials for main parts
| NO. | 零件名称 | A21H-C/A21F材料 | A21W-P/A21F-P材料 | A21Y-R材料 |
| 1 | 管接头 | 20 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 2 | 管接头螺母 | 35 | 2Cr13 | 1Cr18Ni9Ti |
| 3 | 阀座 | 35 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | 阀体 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | 阀瓣 | 2Cr13/2Cr13+PTFE | 1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE | 1Cr18Ni12Mo2Ti |
| 6 | 弹簧座 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 7 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
| 8 | 锁紧螺母 | Q235-A | ZG230-450 | 1Cr18Ni9Ti |
| 9 | 弹簧导向垫 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 10 | 调节螺母 | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
| | 密封面材料 | Y型堆焊Co基硬质合金,H型堆焊D507,W型为阀门本体 |
不锈钢A21W弹簧微启式外螺纹安全阀外形尺寸和连接尺寸 Dimensions (mm)
| 型号 | 公称通径 | do | d | Do | M | d1 | D1 | L | L1 | H |
| KA21Y-16C A21H-16C A21H-40 A21W-16P A21W-40P KA21Y-16P | 15 | 12 | 15 | 20 | M27 1.5 | G1/2" | 30 | 35 | 76 | 66 |
| 20 | 16 | 20 | 25 | M33 1.5 | G3/4" | 34 | 40 | 87 | 68 |
| 25 | 18 | 25 | 31 | M39 1.5 | G1" | 40 | 50 | 100 | 105 |
| A21Y-64 A21Y-64P A21Y-100 A21Y-100P | 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 | 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 |
不锈钢A21W弹簧微启式外螺纹安全阀相关产品:
| A37H-A43H双联弹簧式安全阀 | A27H弹簧微启式安全阀 | A28H带手柄弹簧全启式安全阀 |
| A48Y带扳手弹簧全启式安全阀 | A42Y弹簧全启封闭式安全阀 | WA42Y波纹管平衡式安全阀 |
| A42Y弹簧全启式封闭式高压安全阀 | A47Y带扳手弹簧微启式安全阀 | A41H弹簧微启封闭式安全阀 |
| 弹簧微启封闭式单法兰安全阀(A41H) | A41H弹簧微启封闭式高压安全阀 | A27W-16T全铜安全阀 |
| A21W弹簧微启式外螺纹安全阀 |