----INTRO---
A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off.
Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required.
The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve.
Rotating the actuator turns the disc either parallel or perpendicular to the flow.
Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
---STANDARD---
| Standard | GB Series | API Series |
| Design | GB/T 12237 | API 6D | API 609-83 |
| Flange Connection Length | GB/T 12221 | API 6D | ANSI B16.10 |
| Welding Connection Length | GB/T 15188.1 | API 6D | ANSI B16.10 |
| Flange | GB/T9113, JB/T79 | ANSI B16.5 | |
| Welding | GB/T 12224 | ANSI B16.25 | |
| Testing and Inspection | GB/T 9092 | API 6D | API 1598 |
---STRUCTURE AND MATERIAL---
| No. | Material |
| 1 | Body | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF3 | ASTM A351 CF8M |
| 2 | Pin | ASTM A29-1035/A276 304 | ASTM A276 304 | ASTM A276 304L | ASTM A276 316 |
| 3 | Disc | WCB/CF8/CF8M | ASTM A351 CF8 | ASTM A351 CF3 | ASTM A351 CF8M |
| 4 | Seal Ring | 304/316+Graphite/PTFE | 304+Graphite/PTFE | 304L+Graphite/PTFE | 316+Graphite/PTFE |
| 5 | Retainer Flange | A105/A182/F304/F316 | A182 F304 | A182 F304L | A182 F316 |
| 6 | Bolt | B7/B8/B8M | B8 | B8 | B8M |
| 7 | Bolt | B7 | B8 | B8 | B8M |
| 8 | Cover | A105 | A182 F304 | A182 F304L | A182 F316 |
| 9 | Gasket | Graphite | Graphite | Graphite | Graphite |
| 10 | Bushing | 304 + Nitriding | 304 + Nitriding | 304L + Nitriding | 316 + Nitriding |
| 11 | Bushing | 304 + Nitriding | 304 + Nitriding | 304L + Nitriding | 316 + Nitriding |
| 12 | Packing Seat | A105/304 | 304 | 304L | 316 |
| 13 | Packing | Graphite | Graphite | Graphite | Graphite |
| 14 | Bolt | A193 B7 | A193 B8 | A193 B8 | A193 B8M |
| 15 | Gland Flange | WCB | CF8 | CF3 | CF8M |
| 16 | Nut | A194 2H | A194 8 | A194 8 | A194 8M |
| 17 | Bolt | A193 B7 | A193 B8 | A193 B8 | A193 B8M |
| 18 | Yoke | WCB | WCB | WCB | WCB |
---BASIC DESIGN---
| Nominal Pressue(MPa) | Test Pressure (MPa) | Class
(Lb) | Test Pressure (MPa) |
| Body | High Pressure Sealing Test | Air Pressure Sealing Test | Body | High Pressure Sealing Test | Air Pressure Sealing Test |
| 1.6 | 2.4 | 1.76 | 0.6 | CLASS 150 | 2.94 | 2.1 | 0.6 |
| 2.5 | 3.75 | 2.75 | CLASS 300 | 7.67 | 5.62 |
| 4.0 | 6.0 | 4.4 | CLASS 600 | 15.3 | 11.23 |
Applicable
Specification | Length dimension | GB12221 ANSI B16.10 |
| Flange dimension | JB79-59 GB9113 HG20592-97 ANSI B16.5 |
| Welding standard | GB12224-89 ANSI B16.25 |
| Teat and inspection | JB/T 9092-99 API 598 |
| Operating Mode | Applicable mediums | Natural gas,liquefied gas,petroleum and other medium |
| Applicable Temperature | -28~<150ºC |
| Driving manner | Worm gear, pneumatic operated, electric actuator |
---TRIPLE ECCENTRIC DESIGN---
| OFFSET-1 | The shaft is offset behind the seat axis to allow complete sealing around the entire seat.
|
| OFFSET-2 | The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve.
|
| OFFSET-3 | The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.
|
| ADVANCED | Seat is Cr13 Metal Alloy or hardfaced with stellite as standard.
|
The gasket is spiral wound SS/Graphite for 0 leakage.
|
Seat ring forces are generated by the torque during closing uniformly around the entire circumference.
|
---SIZE (150Lb)---
| PRESSURE | DIA | INCH | L-A | L-B | D1 | D2 | Z-Φd | D0 | H1 |
| PN6 | 40 | 1-1/2" | 33 | 33 | 100 | 80 | 4-Φ14 | 140 | 76 |
| 50 | 2" | 43 | 43 | 110 | 90 | 4-Φ14 | 140 | 85 |
| 65 | 2-1/2" | 46 | 46 | 130 | 110 | 4-Φ14 | 160 | 95 |
| 80 | 3" | 46 | 64 | 150 | 125 | 4-Φ18 | 160 | 110 |
| 100 | 4" | 56 | 64 | 170 | 145 | 4-Φ18 | 180 | 122 |
| 125 | 5" | 64 | 70 | 200 | 175 | 8-Φ18 | 180 | 138 |
| 150 | 6" | 70 | 76 | 225 | 200 | 8-Φ18 | 230 | 158 |
| 200 | 8" | 71 | 89 | 280 | 255 | 8-Φ18 | 230 | 188 |
| 250 | 10" | 76 | 114 | 335 | 310 | 12-Φ18 | 280 | 224 |
| 300 | 12" | 83 | 114 | 395 | 362 | 12-Φ23 | 310 | 254 |
| 350 | 14" | 92 | 127 | 445 | 412 | 12-Φ23 | 310 | 288 |
| 400 | 16" | 102 | 140 | 495 | 462 | 16-Φ23 | 310 | 320 |
| 450 | 18" | 114 | 152 | 550 | 518 | 16-Φ23 | 380 | 350 |
| 500 | 20" | 127 | 152 | 600 | 568 | 20-Φ23 | 380 | 388 |
| 600 | 24" | 154 | 178 | 705 | 670 | 20-Φ25 | 450 | 440 |
| 700 | 28" | 165 | 229 | 810 | 775 | 24-Φ25 | 450 | 488 |
| 800 | 32" | 190 | 241 | 920 | 880 | 24-Φ30 | 450 | 572 |
| 900 | 36" | 203 | 241 | 1020 | 980 | 24-Φ30 | 560 | 628 |
| 1000 | 40" | 216 | 300 | 1120 | 1080 | 28-Φ30 | 560 | 698 |
| 1200 | 48" | 254 | 360 | 1340 | 1295 | 32-Φ34 | 560 | 810 |
| 1400 | 56" | 279 | 390 | 1560 | 1510 | 36-Φ34 | 600 | 940 |
| PRESSURE | DIA | INCH | L-A | L-B | D1 | D2 | Z-Φd | D0 | H1 |
| PN10 | 40 | 1-1/2" | 33 | 33 | 110 | 85 | 4-Φ18 | 140 | 76 |
| 50 | 2" | 43 | 43 | 125 | 100 | 4-Φ18 | 140 | 85 |
| 65 | 2-1/2" | 46 | 46 | 145 | 120 | 4-Φ18 | 160 | 95 |
| 80 | 3" | 46 | 64 | 160 | 135 | 4-Φ18 | 160 | 110 |
| 100 | 4" | 56 | 64 | 180 | 155 | 8-Φ18 | 180 | 122 |
| 125 | 5" | 64 | 70 | 210 | 185 | 8-Φ18 | 180 | 138 |
| 150 | 6" | 70 | 76 | 240 | 210 | 8-Φ23 | 230 | 158 |
| 200 | 8" | 71 | 89 | 295 | 265 | 8-Φ23 | 230 | 188 |
| 250 | 10" | 76 | 114 | 350 | 320 | 12-Φ23 | 280 | 224 |
| 300 | 12" | 83 | 114 | 400 | 368 | 12-Φ23 | 310 | 254 |
| 350 | 14" | 92 | 127 | 460 | 428 | 16-Φ23 | 310 | 288 |
| 400 | 16" | 102 | 140 | 515 | 482 | 16-Φ25 | 310 | 320 |
| 450 | 18" | 114 | 152 | 565 | 532 | 20-Φ25 | 380 | 350 |
| 500 | 20" | 127 | 152 | 620 | 585 | 20-Φ25 | 380 | 388 |
| 600 | 24" | 154 | 178 | 725 | 685 | 20-Φ30 | 450 | 440 |
| 700 | 28" | 165 | 229 | 840 | 800 | 24-Φ30 | 450 | 488 |
| 800 | 32" | 190 | 241 | 950 | 905 | 24-Φ34 | 450 | 572 |
| 900 | 36" | 203 | 241 | 1050 | 1005 | 28-Φ34 | 560 | 628 |
| 1000 | 40" | 216 | 300 | 1160 | 1115 | 28-Φ36 | 560 | 698 |
| 1200 | 48" | 254 | 360 | 1380 | 1325 | 32-Φ39 | 560 | 810 |
| 1400 | 56" | 279 | 390 | 1590 | 1525 | 36-Φ42 | 600 | 940 |
| PRESSURE | DIA | INCH | L-A | L-B | D1 | D2 | Z-Φd | D0 | H1 |
| PN16 | 40 | 1-1/2" | 33 | 33 | 100 | 85 | 4-Φ18 | 140 | 76 |
| 50 | 2" | 43 | 43 | 125 | 100 | 4-Φ18 | 140 | 85 |
| 65 | 2-1/2" | 46 | 46 | 145 | 120 | 4-Φ18 | 160 | 95 |
| 80 | 3" | 46 | 64 | 160 | 135 | 8-Φ18 | 160 | 110 |
| 100 | 4" | 56 | 64 | 180 | 155 | 8-Φ18 | 180 | 122 |
| 125 | 5" | 64 | 70 | 210 | 185 | 8-Φ18 | 180 | 138 |
| 150 | 6" | 70 | 76 | 240 | 210 | 8-Φ23 | 230 | 158 |
| 200 | 8" | 71 | 89 | 295 | 265 | 12-Φ23 | 230 | 188 |
| 250 | 10" | 76 | 114 | 355 | 320 | 12-Φ25 | 280 | 224 |
| 300 | 12" | 83 | 114 | 410 | 375 | 12-Φ25 | 310 | 254 |
| 350 | 14" | 92 | 127 | 470 | 435 | 16-Φ25 | 310 | 288 |
| 400 | 16" | 102 | 140 | 525 | 485 | 16-Φ30 | 310 | 320 |
| 450 | 18" | 114 | 152 | 585 | 545 | 20-Φ30 | 380 | 350 |
| 500 | 20" | 127 | 152 | 650 | 608 | 20-Φ34 | 380 | 388 |
| 600 | 24" | 154 | 178 | 770 | 718 | 20-Φ41 | 450 | 440 |
| 700 | 28" | 165 | 229 | 840 | 788 | 24-Φ41 | 450 | 488 |
| 800 | 32" | 190 | 241 | 950 | 898 | 24-Φ39 | 450 | 572 |
| 900 | 36" | 203 | 241 | 1050 | 998 | 28-Φ39 | 560 | 628 |
| 1000 | 40" | 216 | 300 | 1170 | 1110 | 32-Φ48 | 560 | 698 |
| 1200 | 48" | 254 | 360 | 1390 | 1325 | 36-Φ48 | 560 | 810 |
| 1400 | 56" | 279 | 390 | 1590 | 1525 | 36-Φ48 | 600 | 940 |
| 1600 | 64" | 318 | 440 | 1820 | 1750 | 40-Φ58 | 600 | 1060 |
| PRESSURE | DIA | INCH | L-A | L-B | D1 | D2 | Z-Φd | D0 | H1 |
| PN25 | 40 | 1-1/2" | 33 | 33 | 110 | 85 | 4-Φ18 | 140 | 76 |
| 50 | 2" | 43 | 43 | 125 | 100 | 4-Φ18 | 140 | 85 |
| 65 | 2-1/2" | 46 | 46 | 145 | 120 | 8-Φ18 | 180 | 95 |
| 80 | 3" | 46 | 64 | 160 | 135 | 8-Φ18 | 180 | 110 |
| 100 | 4" | 56 | 64 | 190 | 160 | 8-Φ23 | 230 | 130 |
| 125 | 5" | 64 | 70 | 220 | 188 | 8-Φ25 | 230 | 148 |
| 150 | 6" | 70 | 76 | 250 | 218 | 8-Φ25 | 280 | 165 |
| 200 | 8" | 71 | 89 | 310 | 278 | 12-Φ25 | 280 | 198 |
| 250 | 10" | 76 | 114 | 370 | 332 | 12-Φ30 | 310 | 234 |
| 300 | 12" | 83 | 114 | 430 | 390 | 16-Φ30 | 380 | 266 |
| 350 | 14" | 92 | 127 | 490 | 448 | 16-Φ34 | 380 | 302 |
| 400 | 16" | 102 | 140 | 550 | 505 | 16-Φ34 | 380 | 338 |
| 450 | 18" | 114 | 152 | 600 | 555 | 20-Φ34 | 450 | 365 |
| 500 | 20" | 127 | 152 | 660 | 610 | 20-Φ41 | 450 | 402 |
| 600 | 24" | 154 | 178 | 770 | 718 | 20-Φ41 | 560 | 448 |
| 700 | 28" | 165 | 229 | 875 | 815 | 24-Φ48 | 560 | 498 |
| 800 | 32" | 190 | 241 | 990 | 930 | 24-Φ48 | 600 | 580 |
| 900 | 36" | 203 | 241 | 1090 | 1025 | 28-Φ54 | 600 | 640 |
| 1000 | 40" | 216 | 300 | 1210 | 1140 | 28-Φ58 | 640 | 718 |
| 1200 | 48" | 254 | 360 | 1420 | 1350 | 32-Φ58 | 640 | 890 |
| 1400 | 56" | 279 | 390 | 1640 | 1560 | 36-Φ65 | 640 | 1010 |
| PRESSURE | DIA | INCH | L-A | L-B | D1 | D2 | Z-Φd | D0 | H1 |
| PN40 | 40 | 40 | 1-1/2" | 33 | 33 | 110 | 85 | 4-Φ18 | 140 |
| 50 | 50 | 2" | 43 | 43 | 125 | 100 | 4-Φ18 | 140 |
| 65 | 65 | 2-1/2" | 46 | 46 | 145 | 120 | 8-Φ18 | 180 |
| 80 | 80 | 3" | 46 | 64 | 160 | 135 | 8-Φ18 | 110 |
| 100 | 100 | 4" | 56 | 64 | 190 | 160 | 8-Φ23 | 130 |
| 125 | 125 | 5" | 64 | 70 | 220 | 188 | 8-Φ25 | 148 |
| 150 | 150 | 6" | 70 | 76 | 250 | 218 | 8-Φ25 | 165 |
| 200 | 200 | 8" | 71 | 89 | 320 | 282 | 12-Φ30 | 198 |
| 250 | 250 | 10" | 76 | 114 | 385 | 345 | 12-Φ34 | 234 |
| 300 | 300 | 12" | 83 | 114 | 450 | 408 | 16-Φ34 | 266 |
| 350 | 350 | 14" | 92 | 127 | 510 | 465 | 16-Φ34 | 302 |
| 400 | 400 | 16" | 102 | 140 | 585 | 535 | 16-Φ41 | 338 |
| 450 | 450 | 18" | 114 | 152 | 610 | 560 | 20-Φ41 | 365 |
| 500 | 500 | 20" | 127 | 152 | 670 | 612 | 20-Φ48 | 402 |
| 600 | 600 | 24" | 154 | 178 | 795 | 730 | 20-Φ54 | 448 |
| 700 | 700 | 28" | 165 | 229 | 900 | 835 | 24-Φ54 | 498 |
| 800 | 800 | 32" | 190 | 241 | 1030 | 960 | 24-Φ58 | 580 |
---OVERALL RANGE VALVES SELECTION---
We offer full line of power plant valves includes gate valve, globe valve, check valve, forged steel valves and preheater valves. In addition, our valves can be custom engineered to perform specific functions for our customers' unique requirement.
---QUALITY CONTROL---
Throughout the years, HZVALVE has developed its Quality System which is an integral part of our manufacturing policy. Our primary goal is to provide products that meet and exceed market standards. In this sense, HZVALVE is an ISO-9001 Audited and Certified Company that has achieved major certifications worldwide. Our system consists of a rigorous quality control as well as the selection of raw materials from approved vendors. Control over our manufacturing process is vital. Serial numbers allow HZVALVE to monitor and trace fabrication processes along with the materials of components.
HZVALVE owned independent quality department with over 25 experienced inspectors. Our target is to cover all vital point including material, procession, assembling, testing and package for overall quality controlling and supervision. We keep the understanding that the high quality products create more value to customers.
---TECHNICAL SERVICE---
HZVALVE offers professional technical support and efficient solutions to customers covers presales and after-sales which help customers to meet design requirement and maximize the investment returns.
The basic service includes:
-Model selection including valves and PRDS.
-Technical plans including of calculation sheet and design basis.
-Technical drawing/sketch confirmation.
-Critical working condition analysis and solutions
-Custom-design to special requirement.
-Intime feedback and clarification to customer technical questions.
-Replacement and spare-parts suggestions.
-Recommendations of actuators or other device needed.
-Installation and layout instruction.
-Maintenance and operation suggestions.
-Local engineer training and manual offered.
-Trouble shooting or other problem solutions.
---FAQ---
| Q: How is your company? |
| A: Our company was established in 1958, was National owned company background before. Since established, we keep as top leader in studying and manufacturing kinds of kinds of valves which fit for critical working conditions. To the date, we are providing market-leading safety valves, services and solutions, for the most challenging applications throughout oil and gas, power, mining, chemical, food and beverage and construction industries. |
| Q: How many empolyee your have and how many value for each year? |
| A: Company now has nearly 300 employees, more than 100 various professional and technical personnel, and 6 of them have senior title and over 40 with middle level title. Our annual output value reaches thirty million US dollars and 40% export all around world. |
| Q: What technical support we can get? |
| A: With different working condition from different customer's requested, we will offer custom design for each request whcih help our customer's operations running safely, minimize downtime and enhance lifecycle performance but also in minimal investment cost. |
| Q: Want to know more about quality control? |
| A: HZVALVE owned independent quality department with over 25 experienced inspectors. Our target is to cover all vital point including material, procession, assembling, testing and package for overall quality controlling and supervision. We keep the understanding that the high quality products create more value to customers. |
| Q: What's the certificate of company? |
| A: As the leader valves manufacture, we owned with ISO9001, CE, API and many other else certificate, contact us now for review all certificate we have. |
| Q: What else production range you have? |
| A: We also provide with desuperheater system, safety valves, high pressure power plant valves, preheater valves and other general valves. We are keeping offering overall support to our customer. |
---CONTACT US---
Steven Wang
Sales Manager | Hangzhou Worldwides Valve Co., Ltd. |
| Add: No.34 Eastxianlin Road, Hangzhou, China. |
| Phone: 0086-135-88703684 |
|
| cnhangzhouvalve.en.made-in-china.com |
