GDF-5 Pipeline Māngi Pooro Valve
Wāhi Tāutanga
Ka taea te whakauru i te paera-poipoi ki runga i te paipa hau
Hua Painga
Ko nga ahuatanga me nga painga o te paera poroporo hau
1. He nui te pehanga mahi, a ka taea te whakatuwhera me te kati i te paera i roto i te taiao mahi o 0.4MPa;
2. He poto te wa whakatuwheratanga me te kati kati, a ko te wa whakatuwhera me te kati kati he iti iho i te rite ranei ki te 50s i raro i te rohe ngaohiko mahi o 7.2V;
3. Karekau he mate pehanga, a, ko te hoahoa hanganga mate kore-pēhanga me te diameter takirere e rite ana ki te diameter putorino kua tangohia;
4. He pai te mahi hiri o te paera kati, a ko te hiri he mea hanga ki te rapa nitrile me te aukati teitei o te pāmahana (60 ℃) me te iti o te pāmahana (-25 ℃).
5. Ki te whakakā rohe, ka taea e ia te kite tika i te mana i roto i te waahi o te paera whakawhiti;
6. He pai te rere o te valve on-off, kaore he wiri me te haruru iti;
7. Ko te motuka me te pouaka taputapu kua oti te hiri, a, ko te taumata whakamarumaru ko ≥IP65, e aukati ana i te whakaurunga o te reo whakawhiti, me te pai o te mahi pahū;
8. Ko te tinana valve he mea hanga ki te konumohe, ka taea te tu atu i te pehanga 1.6MPa, te aukati i te wiri me te wiri, me te urutau ki nga taiao uaua;
9. He anodized te mata o te tinana valve, he ataahua, he ma, he pai te mahi anti-corrosion;
Tohutohu Mo te Whakamahi
1. Ko te waea whero me te waea pango ko nga waea hiko, ka hono te waea pango ki te hiko pai, ka hono te waea whero ki te hiko kino hei whakatuwhera i te hiko;
2. Ko nga rarangi whakaputa tohu tohu-a-waa: 2 nga raina ma ko nga raina tohu tohu-tuwhera i roto i te waahi, he poto te waahi i te wa e tu ana te waahi;Ko nga raina puru e 2 ko nga raina tohu tohu kati-kati i roto i te waahi, he poto te waahi i te wa e tu ana te waahi;(I muri i te whakatuwheratanga, i te kati ranei o te hiko, ka tukuna te mana hiko mo te 5s ki te whakarite i te pumau o te tohu i roto i te waahi)
3. Ko te pouaka whakaheke o te valve ka taea te huri i nga nekehanga 180 i runga i te pai o te kaihoko ki te whakauru i te pouaka whakahaere, a ka taea te whakamahi i te waahi i muri i te hurihanga;
4. Whakamahia nga tutaki flange paerewa hei hono i nga marere, nga paipa, me nga mita rere.I mua i te whakaurunga, me ata horoi te mata mutunga o te flange kia kore ai te para rino, te waikura, te puehu me etahi atu mea koi kei runga i te mata o te pito mai i te rakuraku i te peera me te pakaru;
5. Me whakauru te valve ki roto i te pipeline, i te flowmeter ranei me te kati o te valve.Ka tino rahuitia te whakamahi i roto i te ahua o te pehanga nui, te rerenga hau ranei, me te kite i te rerenga me te ahi tuwhera;
6. Ko te ahua o tenei hua ka whakaratohia ki te papa ingoa.
Tohu Hangarau
| Kao.号 | Itrms | Whakaritenga | ||||
| 1 | Waenga mahi | LPG hau taiao | ||||
| 2 | Diamita ingoa(mm) | DN25 | DN40 | DN50 | DN80 | DN100 |
| 3 | Awhe pehanga | 0～0.4Mpa | ||||
| 4 | Te pehanga ingoa | 0.8MPa | ||||
| 5 | Ngaohiko Mahi | DC3～7.2V | ||||
| 6 | Te mahi o naianei | ≤50mA（DC4.5V） | ||||
| 7 | Mōrahi o nāianei | ≤350mA(DC4.5V) | ||||
| 8 | Kua āraia te nāianei | ≤350mA(DC4.5V) | ||||
| 9 | Te pāmahana whakahaere | -25℃～60℃ | ||||
| 10 | Te pāmahana rokiroki | -25℃～60℃ | ||||
| 11 | Te haumākū whakahaere | 5%～95% | ||||
| 12 | Te haumākū rokiroki | ≤95% | ||||
| 13 | ATEX | ExibⅡB T4 Gb | ||||
| 14 | Te karaehe tiaki | IP65 | ||||
| 15 | Te wa whakatuwhera | ≤60s(DC7.2V) | ||||
| 16 | Te wa kati | ≤60s（DC7.2V） | ||||
| 17 | Leakage | I raro i te 0.4MPa, te rerenga ≤0.55dm3/h(wā kōpeke 2min) | ||||
| I raro i te 5KPa, leakage≤0.1dm3/h(wā kōpeke2min) | ||||||
| 18 | Te tukinga motuka | 21Ω±3Ω | ||||
| 19 | whakahuri whakapā ātete | ≤1.5Ω | ||||
| 20 | Te manawanui | ≥4000 wa | ||||
Nga Tauira Hanganga
| Diamita | L | H | ΦA | ΦB | nx ΦC | D | G |
| DN25 | 140 | 212 | Φ115 | Φ85 | 4 x Φ14 | 51 | 18 |
| DN40 | 178 | 246 | Φ150 | Φ110 | 4 x Φ18 | 67 | 18 |
| DN50 | 178 | 262 | Φ165 | Φ125 | 4 x Φ18 | 76 | 18 |
| DN80 | 203 | 300 | Φ200 | Φ160 | 8 x Φ18 | 91 | 20 |
| DN100 | 229 | 317 | Φ220 | Φ180 | 8 x Φ18 | 101 | 20 |
