Valves in Ductile Iron, Cast Steel & Stainless Steel
Choose Product
NKD341 Soft Seal Flange Butterfly Valve
Summary:
Product Model:
Valve Body Material:
Specification:
Suitable Temperature:
Application Field:
Nominal Pressure:
Medium:
Product description
Production Use
Soft sealing butterfly flange valve is suitable for the temperature of <120 C, nominal pressure of <1.6 MPa or less food, medicine, chemical, petroleum, electric power, textile, paper making and so on water supply and drainage, gas pipeline to adjust the action of flowand intercepting medium.
Production Features
1. Novel design, reasonable, unique structure, light weight, rapid opening and closing;
2. Small operation torque, easy to operate, saving smart;
3. Can any position installation, maintenance is convenient;
4. Seal can be replaced, sealed performance is reliable to achieve two-way sealing zero leakage;
5. Sealing material ageing resistance, corrosion resistance, long service life, etc. 
Production Standard Adopted
Product Specification | Design Spec | Face to Face | Flange End | Test & Check |
GB/T12238 | GB/T12221 | GB/T9113 | JB/T9092 GB/T13927 |
Products Performance Specification
Nominal Pressure | PN(MPa) | 0.6 | 1.0 | 1.6 |
Test Pressure PN(MPa) | Strength Test | 0.9 | 1.5 | 2.4 |
Sealing Test | 0.66 | 1.1 | 1.76 | |
Gas Seal Test | 0.6 | 0.6 | 0.6 | |
Applicable Medium | Air,Water,Sewage,Steam,Gas,Oil,Etc | |||
Drive Form | Manual,Worm,Worm Gear Drive,Gas Drive,the Electric Transmission | |||
Main Part Materials
Part name | Material |
Body | Cast Iron,Nodular Cast Iron,Carbon Steel,SS |
Gate | Gray Cast Iron,Ductile Cast Iron,Cast Steel,Stainless Steel and Special Materials |
Seal Ring | Ductile Cast Iron,Cast Steel,Alloy Steel,Stainless Steel |
Stem | 2Cr13,Cast Steel |
Packing | O-rings,Flexible Graphite |
Main External Connection Dimensions
DN | L | D | D1 | D2 | b | f | N-d0 | A | K | E | F | H | H1 | H2 | Ф2 | N-d1 |
50 | 108 | 4-Φ18 | 180 | 65 | 50 | 13 | 83 | 338 | 28 | 12.6 | 4-Ф7 | 4-Φ18 | 180 | 65 | 50 | 13 |
65 | 112 | 8-Φ18 | 180 | 65 | 50 | 13 | 93 | 358 | 28 | 12.6 | 4-Ф7 | 8-Φ18 | 180 | 65 | 50 | 13 |
80 | 114 | 8-Φ18 | 245 | 65 | 50 | 13 | 100 | 413 | 28 | 12.6 | 4-Φ7 | 8-Φ18 | 245 | 65 | 50 | 13 |
100 | 127 | 8-Φ18 | 240 | 90 | 70 | 13 | 114 | 428 | 28 | 15.77 | 4-Ф10 | 8-Φ18 | 240 | 90 | 70 | 13 |
125 | 140 | 8-Φ18 | 240 | 90 | 70 | 13 | 125 | 444 | 28 | 18.92 | 4-Φ10 | 8-Φ18 | 240 | 90 | 70 | 13 |
150 | 140 | 8-Φ22 | 350 | 90 | 70 | 13 | 143 | 553 | 28 | 18.92 | 4-Ф10 | 8-Φ22 | 350 | 90 | 70 | 13 |
200 | 152 | 12-Ф22 | 350 | 125 | 102 | 13 | 170 | 678 | 38 | 22.1 | 4-Φ12 | 12-Ф22 | 350 | 125 | 102 | 13 |
250 | 165 | 12-Ф26 | 550 | 125 | 102 | 13 | 198 | 742 | 38 | 28.45 | 4-Ф12 | 12-Ф26 | 550 | 125 | 102 | 13 |
300 | 178 | 12-Ф26 | 600 | 125 | 102 | 20 | 223 | 803 | 38 | 31.6 | 4-Φ12 | 12-Ф26 | 600 | 125 | 102 | 20 |
350 | 190 | 16-Ф26 | 600 | 150 | 125 | 20 | 270 | 866 | 45 | 31.6 | 4-Ф14 | 16-Ф26 | 600 | 150 | 125 | 20 |
400 | 216 | 16-Φ30 | 600 | 175 | 140 | 20 | 300 | 940 | 51 | 33.15 | 4-Φ18 | 16-Φ30 | 600 | 175 | 140 | 20 |
450 | 222 | 20-Φ30 | 750 | 175 | 140 | 20 | 340 | 995 | 51 | 37.95 | 4-Φ18 | 20-Φ30 | 750 | 175 | 140 | 20 |
500 | 229 | 20-Ф33 | 750 | 175 | 140 | 22 | 355 | 1058 | 57 | 41.12 | 4-Φ18 | 20-Ф33 | 750 | 175 | 140 | 22 |
600 | 267 | 20-Φ36 | 750 | 210 | 165 | 30 | 410 | 1163 | 70 | 50.63 | 4-Ф22 | 20-Φ36 | 750 | 210 | 165 | 30 |
700 | 292 | 24-Φ36 | 750 | 300 | 254 | 30 | 478 | 1283 | 66 | 63.35 | 8-018 | 24-Φ36 | 750 | 300 | 254 | 30 |
800 | 318 | 24-Φ39 | 750 | 300 | 254 | 30 | 529 | 1398 | 66 | 63.35 | 8-Φ18 | 24-Φ39 | 750 | 300 | 254 | 30 |
900 | 330 | 28-Φ39 | 1250 | 300 | 254 | 34 | 584 | 1498 | 118 | 75 | 8-Φ18 | 28-Φ39 | 1250 | 300 | 254 | 34 |
1000 | 410 | 28-Ф42 | 1500 | 300 | 254 | 34 | 357 | 1608 | 142 | 85 | 8-018 | 28-Ф42 | 1500 | 300 | 254 | 34 |
1200 | 470 | 32-Ф48 | 1500 | 350 | 298 | 34 | 799 | 1876 | 150 | 105 | 8-Ф22 | 32-Ф48 | 1500 | 350 | 298 | 34 |
1400 | 530 | 36-Ф48 | - | 415 | 356 | 40 | 919 | - | 200 | 120 | 8-Φ32 | 36-Ф48 | - | 415 | 356 | 40 |
Note: The flange size in this table is in accordance with JB/T 79-2015 standard series 1 size, and the structure length is in accordance with GB/T12221-2005 standard.
Keywords:
Category:
Product inquiry
Note: Please leave your phone number or E-mail and our professionals will contact you as soon as possible!
Factory