Varuvhu (gedhi) zvinoreva vharuvhu ine chikamu chinovhara (gedhi) chinofamba chichitevedza nzira yakatwasuka yepakati pemugero.Gedhi vharafu inonyanya kushandiswa kucheka mupombi.Forged steel gedhi vharafu ivharuvhu inoshandiswa zvakanyanya.Iyo inowanzoshandiswa pakucheka michina ine dhayamita yeDN ≥ 50mm, uye dzimwe nguva gedhi valve inoshandiswawo pakucheka michina ine dhayamita diki.Ivhavha yegedhi, sevhavha yepasi-yakadzika, inonyanya kuwanda.
Gedhi valve zvinhu:
Kuita kwakanaka kwekuisa chisimbiso, kushomeka kwemvura uye kumwe kuita kwemitemo;Nekudaro, ine hukuru hukuru, dhizaini yakaoma, yakaoma kugadzirisa, kupfeka nyore kwekuisa chisimbiso pamusoro, yakaoma kugadzirisa uye kuvhura kwenguva refu nekuvhara nguva.Inokodzera kugadzira mavharuvhu makuru-diameter.Pamusoro pehupfu, oiri uye mamwe midhiya, inokodzerawo midhiya ine granular solids uye yakakwirira viscosity, pamwe nemavharuvhu emhepo uye yakaderera vacuum masisitimu.
AIHWA. | CHIKAMU | ASTM Material | |||||
WCB | LCB | WC6 | CF8(M) | CF3(M) | |||
1 | BODY | A216 WCB | A352 LCB | A217 WC6 | A351 CF8(M) | A351 CF3(M) | |
2 | GATE | A216 WCB+13Cr | A352 LCB+13Cr | A217 WC6 + STL | A351 CF8(M) | A351 CF3(M) | |
3 | SEAT | A105+13Cr | A105+13Cr | A217 WC6 + STL | A351 CF8(M)+STL6 | A351 CF3(M)+STL6 | |
4 | STEM | A182 F6 | A182 F6 | A182 F6 | A182 F304/F316 | A182 F304L/F316L | |
5 | BONNET BOLT | A193 B7 | A320 L7 | A193 B16 | A193 B8(M) | A193 B8(M) | |
6 | BONNET NUT | A194 2H | A194 7 | A194 4 | A194 8(M) | A194 8(M) | |
7 | GASKET | SS304+GRAPHITE | PTFE/SS304+GRAPHITE | PTFE/SS316+GRAPHITE | |||
8 | BONNET | A216 WCB | A352 LCB | A217 WC6 | A351 CF8(M) | A351 CF3(M) | |
9 | BACKSEAT | A182 F6 | A182 F6 | A182 F6 | - | - | |
10 | KUPAKA | FLEXIBLE GRAPHITE | PTFE/FLEXIBLE GRAPHITE | ||||
11 | GLAND | A182 F6 | A182 F6 | A182 F6 | A182 F304 | A182 F304L/F316L | |
12 | GLAND FLANGE | A216 WCB | A352 LCB | A217 WC6 | A351 CF8(M) | A351 CF3(M) | |
13 | GLAND EYEBOLT | A193 B7 | A193 B8 | A193 B8 | |||
14 | NUT | A194 2H | A194 8 | A194 8 | |||
15 | PIN | AISI 1025 | AISI 1025 | ||||
16 | STEM NUT | BRONZE | BRONZE | ||||
17 | HANDWHEEL NUT | AISI 1035 | AISI 1035 | ||||
18 | SCREW | ASTM A36 | ASTM A36 | ||||
19 | HANDWHEEL | A536 60-40-18 | A536 60-40-18 | ||||
20 | KUBVA GLAND | AISI 1035 | AISI 1035 | ||||
21 | KUZORA NYAMBO | BRASASI | BRASASI | ||||
22 | NAMEPLATE | SS304 | SS304 |
NPS | 2 | 2½ | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 |
L | 250 | 270 | 280 | 300 | 325 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | 700 | 800 |
D | 165 | 185 | 200 | 235 | 270 | 300 | 360 | 425 | 485 | 555 | 620 | 670 | 730 | 745 |
b | 20 | 22 | 24 | 24 | 26 | 28 | 30 | 32 | 34 | 38 | 40 | 46 | 48 | 58 |
nd | 4-20 | 8-22 | 8-24 | 8-24 | 8-26 | 8-28 | 12-30 | 12-32 | 16-34 | 16-38 | 16-40 | 20-46 | 20-48 | 20-58 |