SKU:彈簧微啟式外螺紋安全閥（A21W-16P）
系列 Series
A21F-16C A21H-16C A21H-40 A21H-64 A21Y-100 A21H-160 A21W-16P A21W-40P A21F-40P A21W-64P A21W-100P A21W-160P KA21Y-16C KA21Y-16P A21Y-16R A21Y-40R A21Y-64R A21Y-100R A21Y-160R
A21F、A21H-C型適用于工作溫度≤200℃的空氣、氨、石油氣……等介質的設備或管路上。A21W-P、R型適用于溫度≤200℃有腐蝕性的氣體或液體的設備或管路上，作為超壓保護裝置。KA21Y型適用于溫度≤100℃的液化石油氣等。A21F, A21H-C type are used for the equipment and pipeline of the air, ammonia, petroleum gas, etc. medium what the wor-king temperature are less than 200 . A21W-P, R type are used for the equipment and pipeline of the quality with corr ode gas and liquid medium shat the wor-king temperature are less than 200 . Take for extrapressure protection devices. KA21Y type are used for liquefied petroleum gas what the working temperature are less than 100
A21W彈簧微啟式外螺紋安全閥主要零部件材料 Explanation of materials for main parts
NO. Name of part A21H-C/A21F KA21Y-C Materials A21W-P/A21F-P KA21Y-P Materials A21Y-R Materials 1 Union 20 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 2 Union nut 35 2Cr13 1Cr18Ni9Ti 3 Nozzle 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 4 Body 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 5 Disc 2Cr13/2Cr13+PTFE 1Cr18Ni9Ti/1Cr18nI9Ti+PTFE 1Cr18Ni12Mo2Ti 6 Spring washer 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 7 Spring 50CrVA 50CrVA Coated Teflon 50CrVA Coated Teflon 8 Locking nut Q235-A 2Cr13 1Cr18Ni9Ti 9 Spring guide 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 10 Adjusting nut Q235-A 2Cr13 1Cr18Ni12Mo2Ti Sealing surface of material "Y" Co Depositing slite, "H" D507 Depositing D507, "W" body
A21W外形尺寸和連接尺寸 Dimensions （mm）
| Type | （DN） Nominal diameter | 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 |
A21W相關產品：
| A37H-A43H雙聯(lián)彈簧式安全閥 | A27H彈簧微啟式安全閥 | A28H帶手柄彈簧全啟式安全閥 |
| A48Y帶扳手彈簧全啟式安全閥 | A42Y彈簧全啟封閉式安全閥 | WA42Y波紋管平衡式安全閥 |
| A42Y彈簧全啟式封閉式高壓安全閥 | A47Y帶扳手彈簧微啟式安全閥 | A41H彈簧微啟封閉式安全閥 |
| 彈簧微啟封閉式單法蘭安全閥（A41H） | A41H彈簧微啟封閉式高壓安全閥 | A27W-16T全銅安全閥 |
| A21W | ||
