Nā hiʻohiʻona huahana
1. Ua like ka huina kū'ē me ka lōʻihi o ka paipu;
2. Ka hana maʻalahi, ka leo liʻiliʻi a me ke kaumaha māmā;
3. I kēia manawa, hoʻohana nui ʻia ka mea hoʻopaʻa paʻa o ka ʻili kinipōpō me ka hana hoʻopaʻa sila maikaʻi, a ua hoʻohana nui ʻia i ka ʻōnaehana vacuum;
4. He maʻalahi ka hana, wehe a pani koke, mai ka hāmama piha a hiki i ka piha piha e like me ka lōʻihi o 90 ° rotation, kūpono no ka mana mamao;
5. Mālama maʻalahi, hoʻonohonoho maʻalahi o ka pahu pōpō, ke apo sealing movable, maʻalahi ka wehe ʻana a me ka hoʻololi;
6. Ke wehe piha a pani ʻia paha ka valve, ua hoʻokaʻawale ʻia ka ʻili o ka pōleʻa a me ka noho valve mai ka waena, a ʻaʻole e hana ʻia ka erosion o ka ʻili hoʻopaʻa ʻana o ka valve i ka wā e hele ai ka waena;
7. Loaʻa iā ia ka nui o nā noi, mai ka liʻiliʻi liʻiliʻi a hiki i kekahi mau millimeters, a hiki i kekahi mau mika, mai ka vacuum kiʻekiʻe a hiki i ke kaomi kiʻekiʻe. Ke huli ka poepoe i 90 degere, he poepoe ka puka komo a me ka puka o ka poepoe, i mea e oki ai i ke kahe.
Kūlana hoʻokō huahana
| code hoʻolālā | Ka lōʻihi hale | Hoʻohui flange | Hoao a nana | ʻO ka wela kaomi |
| GB/T12237 | GB/T12221 | GB/T9113, JB/T79, HG/T20592, EN1092 | JB/T9092, GB/T13927, API598 | GB/T12224 |
Mea o na mahele nui
| Helu | inoa | ʻepekema Material |
| 1 | Kāleka | 25 |
| 2 | noho kiwi | PTFE |
| 3 | kino valve | WOB |
| 4 | apo sila | PTFE, Para polyphenylene |
| 5 | pōʻai | kila kohu ʻole |
| 6 | Ke kumu | 1Cr13 |
| 7 | mea hoʻopiha | graphite hikiwawe |
| 8 | ʻO ka hoʻopaʻa ʻana | WCB |
Ke kaha kiʻi ʻana o ka valve pōlele i hoʻopaʻa ʻia
Nā ana pili nui PN1.6MPa
| DN | L | ʻO D | D1 | D2 | b | Z-Φd | H | IN | WT |
| 15 | 108 | 95 | 6545 | 14 | 14 | 4-Φ14 | 95 | 160 | 2.5 |
| 20 | 117 | 105 | 75 | 55 | 14 | 4-Φ14 | 101 | 160 | 3 |
| 25 | 127 | 115 | 85 | 65 | 14 | 4-Φ14 | 106 | 160 | 5 |
| 32 | 140 | 135 | 100 | 78 | 16 | 4-Φ18 | 112 | 230 | 6 |
| 40 | 165 | 145 | 110 | 85 | 16 | 4-Φ18 | 125 | 230 | 7 |
| 50 | 178 | 160 | 125 | 100 | 16 | 4-Φ18 | 135 | 230 | 10 |
| 65 | 191 | 180 | 145 | 120 | 18 | 4-Φ18 | 170 | 400 | 16 |
| 80 | 203 | 195 | 180 | 155 | 20 | 8-Φ18 | 193 | 400 | 19 |
| 100 | 229 | 215 | 180 | 155 | 20 | 8-Φ18 | 265 | 700 | 33 |
| 125 | 356 | 245 | 210 | 185 | 22 | 8-Φ18 | 310 | 700 | 48 |
| 150 | 394 | 280 | 240 | 210 | 24 | 8-Φ18 | 355 | 1100 | 62 |
| 200 | 457 | 335 | 295 | 265 | 26 | 12-Φ23 | 410 | 1500 | 93 |
| 250 | 533 | 405 | 355 | 320 | 30 | 12-Φ25 | 560 | 1500 | 120 |
PN2.5MPa
| DN | L | ʻO D | D1 | D2 | b | Z-Φd | H | IN | WT |
| 15 | 140 | 95 | 65 | 45 | 16 | 4-Φ14 | 95 | 160 | 3 |
| 20 | 152 | 105 | 75 | 55 | 16 | 4-Φ14 | 101 | 160 | 4 |
| 25 | 165 | 115 | 85 | 65 | 16 | 4-Φ14 | 106 | 160 | 6 |
| 32 | 178 | 135 | 100 | 78 | 18 | 4-Φ18 | 112 | 230 | 7 |
| 40 | 190 | 145 | 110 | 85 | 18 | 4-Φ18 | 125 | 230 | 8 |
| 50 | 216 | 160 | 125 | 100 | 20 | 4-Φ18 | 135 | 230 | 11 |
| 65 | 241 | 180 | 145 | 120 | 22 | 8-Φ18 | 170 | 400 | 18 |
| 80 | 283 | 195 | 160 | 135 | 22 | 8-Φ18 | 193 | 400 | 23 |
| 100 | 305 | 230 | 190 | 160 | 24 | 8-Φ13 | 265 | 700 | 40 |
| 125 | 381 | 270 | 220 | 188 | 28 | 8-Φ5 | 310 | 700 | 70 |
| 150 | 403 | 300 | 250 | 218 | 30 | 8-Φ18 | 355 | 1100 | 102 |
| 200 | 502 | 360 | 310 | 278 | 34 | 12-Φ25 | 140 | 1500 | 150 |
| 250 | 568 | 425 | 370 | 332 | 36 | 12-Φ30 | 560 | 1500 | 182 |















