- 產(chǎn)品品牌：
- CNVA
- 產(chǎn)品型號：
- (A28H)
- 連接形式：
- 螺紋
- 材質(zhì)：
- 不銹鋼
- 閥瓣開啟高度：
- 全啟式安全閥
- 結(jié)構(gòu)形式：
- 彈簧式
SKU:帶手柄彈簧全啟式安全閥(A28H) Description: 系列 Series A28H-10 A28Y-10P A28Y-10R8 A28Y-25R8 A28Y-40R8 A28H-16 A28Y-16P A28Y-16R8 A28Y-25R8 A28Y-40R8 A28H型適用于工作溫度≤200℃的空氣、蒸汽、水、氮?dú)浠旌蠚獾冉橘|(zhì)的設(shè)備或管路上，A28Y-P/10R8適用于工作溫度≤200℃有腐蝕性介質(zhì)的設(shè)備或管路上，作為超壓保護(hù)裝置。 A28H type are used for the equipment and pipeline of the air, N2, H2 mixed gas vapour etc.medium what the working temp-erature are less than 200 . A28Y-P/10R8 type are used for the equipment and pipeline of the quality with corrode medium what the working temperature are less than 200 . Take for extra pressure protedion devices. 主要零部件材料 Explanation of materials for main parts
| NO. | Name of part | A28H Materials | A28Y-P Materials | A28Y-R8 Materials |
| 1 | Body | HT200 | ZG1Cr18Ni9Ti | CF8M |
| 2 | Nozzle | 35 | ZG1Cr18Ni9Ti | CF8M |
| 3 | Adjusting ring | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 4 | Disc | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 5 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon |
| 6 | Stem | 2Cr13 | 2Cr13 | 316 |
| 7 | Adjusting bolt | 45 | 2Cr13 | 316 |
| 8 | Cap | ZG200-400 | ZG200-400 | CF8M |
| Sealing surface of material |
D507 Depositing D507 |
Co Depositing stellite |
||
| 10 | Adjusting nut | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
| Sealing surface of material | "Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body | |||
|
Nominal diameter DN (mm) |
Dimensions (mm) | |||||
| do | Rc | G | L | L1 | H | |
| 15 | 10 | 1/2" | 3/4" | 37 | 62 | 189 |
| 20 | 12 | 3/4" | 1" | 40 | 65 | 196 |
| 25 | 15 | 1" |
11/ " 4 |
45 | 72 | 277 |
| 32 | 20 | 11/ " | 1 | 55 | 85 | 312 |
| 40 | 25 | 11/ " | 2" | 67 | 100 | 322 |
| 50 | 32 | 2" |
21/ " 2 |
76 | 112 | 348 |
| 65 | 40 | 21/ " | 3" | 110 | 135 | 370 |
| 80 | 50 | 3" | 4" | 110 | 145 | 410 |
