a.D371F46 semi-lining type
The valve body is fully lined/the butterfly plate is fully lined/the butterfly plate is integrated with the plate shaft;
b.D371F4 fully lined type
The valve body is fully lined/the butterfly plate is fully lined.
c.D371F46 fully lined valve body fully lined / butterfly plate for stainless steel (not lined)
Design and Manufacturing | GB/T 12238(median line)/API609 |
Structure length | GB/T12221/API609 |
Flange Size | HG/T20592/ASME B16.5 |
pressure test | GB/T13927/API598 |
symbolize | GB/T 12220 |
fill | JB/T 7928 |
Nominal pressure PN0.6~1.6(MPa) Nominal diameter DN40~1200(mm)
manually | DA71F/P DA71PFA DA71F4 DA71F46 | Semi-Lined Fully lined Fully lined Fully lined | worm-gear rotation | DA371F/P DA371PFA DA371F4 DA371F46 | Semi-Lined Fully lined Fully lined Fully lined |
get angry | DA671F/P DA671PFA DA671F4 DA671F46 | Semi-Lined Fully lined Fully lined Fully lined | Electricity | DA971F/P DA971PFA DA971F4 DA971F46 | Semi-Lined Fully lined Fully lined Fully lined |
serial number | Part Name | gray cast iron | carbon steel | stainless steels | |
Z | C | P | R | ||
1 | Upper and lower valve body Bracket | HT250 | WCB | CF8 | CF8M |
2 | butterfly plate | WCB | CF8 | CF8 | CF8M |
3 | Butterfly plate shaft | 25# | 25# | 304 | 316 |
4 | Lining/seat | PTFE(F4)FEP(F46)POpolypropylene | |||
5 | pad | SI(silicone rubber) | |||
6 | Turbine Box Handle | HT250 WCB | |||
| Nominal diameter | Standard value (unit: mm) | reference point | |||||||
| DN | NPS | L | D | D1 | D2 | f | b | Z-Φd | W(kg) |
| (mm) | (inch) | PN1.0MPa | |||||||
| 40 | 11/2 | 33/43 | - | 110 | 88 | 3 | - | 4-Φ18 | 3 |
| 50 | 2 | 43 | - | 125 | 102 | 3 | - | 4-Φ18 | 4 |
| 65 | 21/2 | 46 | - | 145 | 122 | 3 | - | 8-Φ18 | 6 |
| 80 | 3 | 46 | - | 160 | 138 | 3 | - | 8-Φ18 | 8 |
| 100 | 4 | 52 | - | 180 | 158 | 3 | - | 8-Φ18 | 12 |
| 125 | 5 | 56 | - | 210 | 188 | 3 | - | 8-Φ18 | 18 |
| 150 | 6 | 56 | - | 240 | 212 | 3 | - | 8-Φ22 | 28 |
| 200 | 8 | 60 | - | 295 | 268 | 3 | - | 8-Φ22 | 56 |
| 250 | 10 | 68 | - | 350 | 320 | 4 | - | 12-Φ22 | 72 |
| 300 | 12 | 78 | - | 400 | 370 | 4 | - | 12-Φ22 | 88 |
| 350 | 14 | 78 | - | 460 | 430 | 4 | - | 16-Φ22 | 120 |
| 400 | 16 | 102 | - | 515 | 482 | 4 | - | 16-Φ26 | 145 |
| 450 | 18 | 114 | - | 565 | 532 | 4 | - | 20-Φ26 | 165 |
| 500 | 20 | 127 | - | 620 | 585 | 4 | - | 20-Φ26 | 195 |
| 600 | 24 | 154 | - | 725 | 685 | 6 | - | 20-Φ30 | 268 |
| 700 | 28 | 165 | - | 840 | 800 | 6 | - | 24-Φ30 | 320 |
| 800 | 32 | 190 | - | 950 | 905 | 6 | - | 24-Φ33 | 395 |
| 900 | 36 | 200 | - | 1050 | 1005 | 6 | - | 28-Φ33 | 450 |
| 1000 | 40 | 216 | - | 1160 | 1110 | 6 | - | 28-Φ36 | 680 |
| 1200 | 48 | 254 | - | 1380 | 1330 | 6 | - | 32-Φ39 | 825 |
| 1400 | 56 | 279 | - | 1590 | 1535 | 6 | - | 36-Φ42 | 1250 |
Nominal diameter | standard value | reference point | |||||||||
DN (mm | NPS (inch | L | D | D1 | D₂ | f | b | Z-Φd | Do | H | W(kg) |
PN1.6(MPa) | |||||||||||
40 | 11/2 | 33/43 | - | 110 | 88 | 3 | - | 4-Φ18 | 200 | 145 | 4 |
50 | 2 | 43 | - | 125 | 102 | 3 | - | 4-Φ18 | 200 | 150 | 5 |
65 | 21/2 | 46 | - | 145 | 122 | 3 | - | 8-Φ18 | 250 | 160 | 7 |
80 | 3 | 46 | - | 160 | 138 | 3 | - | 8-Φ18 | 250 | 170 | 10 |
100 | 4 | 52 | - | 180 | 158 | 3 | - | 8-Φ18 | 300 | 185 | 14 |
125 | 5 | 56 | - | 210 | 188 | 3 | - | 8-Φ18 | 300 | 210 | 22 |
150 | 6 | 56 | - | 240 | 212 | 3 | - | 8-Φ22 | 200* | 230 | 32 |
200 | 8 | 60 | - | 295 | 268 | 3 | - | 12-Φ22 | 240* | 285 | 66 |
250 | 10 | 68 | - | 355 | 320 | 3 | - | 12-Φ26 | 240* | 325 | 80 |
300 | 12 | 78 | - | 410 | 378 | 4 | - | 12-Φ26 | 280* | 360 | 94 |
350 | 14 | 78 | - | 470 | 428 | 4 | - | 16-Φ26 | 280* | 430 | 125 |
400 | 16 | 102 | - | 525 | 490 | 4 | - | 16-Φ30 | 320* | 475 | 150 |
450 | 18 | 114 | - | 585 | 550 | 4 | - | 20-Φ30 | 320* | 525 | 172 |
500 | 20 | 127 | - | 650 | 610 | 4 | - | 20-Φ33 | 320* | 565 | 225 |
600 | 24 | 154 | - | 770 | 725 | 6 | - | 20-Φ36 | 360* | 620 | 290 |
700 | 28 | 165 | - | 840 | 795 | 6 | - | 24-Φ36 | 360* | 686 | 330 |
800 | 32 | 190 | - | 950 | 900 | 6 | - | 24-Φ39 | 380* | 815 | 425 |
900 | 36 | 200 | - | 1050 | 1000 | 6 | - | 28-Φ39 | 400* | 1010 | 495 |
1000 | 40 | 216 | - | 1170 | 1115 | 6 | - | 28-Φ42 | 400* | 1185 | 710 |
a.D371F46 semi-lining type
The valve body is fully lined/the butterfly plate is fully lined/the butterfly plate is integrated with the plate shaft;
b.D371F4 fully lined type
The valve body is fully lined/the butterfly plate is fully lined.
c.D371F46 fully lined valve body fully lined / butterfly plate for stainless steel (not lined)
Design and Manufacturing | GB/T 12238(median line)/API609 |
Structure length | GB/T12221/API609 |
Flange Size | HG/T20592/ASME B16.5 |
pressure test | GB/T13927/API598 |
symbolize | GB/T 12220 |
fill | JB/T 7928 |
Nominal pressure PN0.6~1.6(MPa) Nominal diameter DN40~1200(mm)
manually | DA71F/P DA71PFA DA71F4 DA71F46 | Semi-Lined Fully lined Fully lined Fully lined | worm-gear rotation | DA371F/P DA371PFA DA371F4 DA371F46 | Semi-Lined Fully lined Fully lined Fully lined |
get angry | DA671F/P DA671PFA DA671F4 DA671F46 | Semi-Lined Fully lined Fully lined Fully lined | Electricity | DA971F/P DA971PFA DA971F4 DA971F46 | Semi-Lined Fully lined Fully lined Fully lined |
serial number | Part Name | gray cast iron | carbon steel | stainless steels | |
Z | C | P | R | ||
1 | Upper and lower valve body Bracket | HT250 | WCB | CF8 | CF8M |
2 | butterfly plate | WCB | CF8 | CF8 | CF8M |
3 | Butterfly plate shaft | 25# | 25# | 304 | 316 |
4 | Lining/seat | PTFE(F4)FEP(F46)POpolypropylene | |||
5 | pad | SI(silicone rubber) | |||
6 | Turbine Box Handle | HT250 WCB | |||
| Nominal diameter | Standard value (unit: mm) | reference point | |||||||
| DN | NPS | L | D | D1 | D2 | f | b | Z-Φd | W(kg) |
| (mm) | (inch) | PN1.0MPa | |||||||
| 40 | 11/2 | 33/43 | - | 110 | 88 | 3 | - | 4-Φ18 | 3 |
| 50 | 2 | 43 | - | 125 | 102 | 3 | - | 4-Φ18 | 4 |
| 65 | 21/2 | 46 | - | 145 | 122 | 3 | - | 8-Φ18 | 6 |
| 80 | 3 | 46 | - | 160 | 138 | 3 | - | 8-Φ18 | 8 |
| 100 | 4 | 52 | - | 180 | 158 | 3 | - | 8-Φ18 | 12 |
| 125 | 5 | 56 | - | 210 | 188 | 3 | - | 8-Φ18 | 18 |
| 150 | 6 | 56 | - | 240 | 212 | 3 | - | 8-Φ22 | 28 |
| 200 | 8 | 60 | - | 295 | 268 | 3 | - | 8-Φ22 | 56 |
| 250 | 10 | 68 | - | 350 | 320 | 4 | - | 12-Φ22 | 72 |
| 300 | 12 | 78 | - | 400 | 370 | 4 | - | 12-Φ22 | 88 |
| 350 | 14 | 78 | - | 460 | 430 | 4 | - | 16-Φ22 | 120 |
| 400 | 16 | 102 | - | 515 | 482 | 4 | - | 16-Φ26 | 145 |
| 450 | 18 | 114 | - | 565 | 532 | 4 | - | 20-Φ26 | 165 |
| 500 | 20 | 127 | - | 620 | 585 | 4 | - | 20-Φ26 | 195 |
| 600 | 24 | 154 | - | 725 | 685 | 6 | - | 20-Φ30 | 268 |
| 700 | 28 | 165 | - | 840 | 800 | 6 | - | 24-Φ30 | 320 |
| 800 | 32 | 190 | - | 950 | 905 | 6 | - | 24-Φ33 | 395 |
| 900 | 36 | 200 | - | 1050 | 1005 | 6 | - | 28-Φ33 | 450 |
| 1000 | 40 | 216 | - | 1160 | 1110 | 6 | - | 28-Φ36 | 680 |
| 1200 | 48 | 254 | - | 1380 | 1330 | 6 | - | 32-Φ39 | 825 |
| 1400 | 56 | 279 | - | 1590 | 1535 | 6 | - | 36-Φ42 | 1250 |
Nominal diameter | standard value | reference point | |||||||||
DN (mm | NPS (inch | L | D | D1 | D₂ | f | b | Z-Φd | Do | H | W(kg) |
PN1.6(MPa) | |||||||||||
40 | 11/2 | 33/43 | - | 110 | 88 | 3 | - | 4-Φ18 | 200 | 145 | 4 |
50 | 2 | 43 | - | 125 | 102 | 3 | - | 4-Φ18 | 200 | 150 | 5 |
65 | 21/2 | 46 | - | 145 | 122 | 3 | - | 8-Φ18 | 250 | 160 | 7 |
80 | 3 | 46 | - | 160 | 138 | 3 | - | 8-Φ18 | 250 | 170 | 10 |
100 | 4 | 52 | - | 180 | 158 | 3 | - | 8-Φ18 | 300 | 185 | 14 |
125 | 5 | 56 | - | 210 | 188 | 3 | - | 8-Φ18 | 300 | 210 | 22 |
150 | 6 | 56 | - | 240 | 212 | 3 | - | 8-Φ22 | 200* | 230 | 32 |
200 | 8 | 60 | - | 295 | 268 | 3 | - | 12-Φ22 | 240* | 285 | 66 |
250 | 10 | 68 | - | 355 | 320 | 3 | - | 12-Φ26 | 240* | 325 | 80 |
300 | 12 | 78 | - | 410 | 378 | 4 | - | 12-Φ26 | 280* | 360 | 94 |
350 | 14 | 78 | - | 470 | 428 | 4 | - | 16-Φ26 | 280* | 430 | 125 |
400 | 16 | 102 | - | 525 | 490 | 4 | - | 16-Φ30 | 320* | 475 | 150 |
450 | 18 | 114 | - | 585 | 550 | 4 | - | 20-Φ30 | 320* | 525 | 172 |
500 | 20 | 127 | - | 650 | 610 | 4 | - | 20-Φ33 | 320* | 565 | 225 |
600 | 24 | 154 | - | 770 | 725 | 6 | - | 20-Φ36 | 360* | 620 | 290 |
700 | 28 | 165 | - | 840 | 795 | 6 | - | 24-Φ36 | 360* | 686 | 330 |
800 | 32 | 190 | - | 950 | 900 | 6 | - | 24-Φ39 | 380* | 815 | 425 |
900 | 36 | 200 | - | 1050 | 1000 | 6 | - | 28-Φ39 | 400* | 1010 | 495 |
1000 | 40 | 216 | - | 1170 | 1115 | 6 | - | 28-Φ42 | 400* | 1185 | 710 |
