Worm gear double flange butterfly valve
All products undergo factory pressure testing: All products can provide a factory pressure test report.
Key words:
Classification:
Product Details
Basic Information
| Product Model | D371X-10/16Q |
| Product Name |
Centerline Wafer Butterfly Valve |
| Valve Body | Ductile Iron DI |
| Valve Seat | EPDM Rubber |
| Disc | Ductile Iron DI |
| Valve Shaft | 45 |
| Drive | Worm Gear |
Product Features
(1) All products undergo factory pressure testing: All products can provide factory pressure test reports;
(2) High-performance valve seat rubber: The rubber content of the valve seat is 50%, with a switch life of over 30,000 times;
(3) Soft backing valve seat: Compared to hard backing valve seats, soft backing valve seats have a wider contact surface with the pipeline flange, better sealing performance, and do not require special flanges for butterfly valves;
(4) Axial sealing: The valve shaft is supported by four oil-free bearings, with a dual sealing structure design of O-rings and oil seals, resulting in low torque and reliable sealing; for large diameter valves above DN350, the upper and lower shaft holes use a packing box structure design, achieving sealing through the compression of the packing by the gland.
(5) Surface coating: Uses epoxy resin powder coating, with strong adhesion and good weather resistance, suitable for both indoor and outdoor use.
(6) Valve shaft blowout prevention structure design: The pinless butterfly valve adopts a blowout prevention structure design, allowing for worm gear head replacement under pressure.
(7) Pinless structure, soft backing valve seat, installation does not require any special equipment, convenient for maintenance and replacement of parts.
Technical Parameters
| Caliber Range | DN40-DN1200 |
| Nominal Pressure | PN10/16, 150LB, 10K |
| Applicable Temperature | -20~120℃ |
| Applicable Medium | Clean water and neutral liquids |
| Application Fields | Municipal construction, water conservancy projects, electricity, water supply and drainage, water treatment |
Implementation Standards
| Name | Reference Standards |
| Design and Manufacturing | GB/T 12238 |
| Structural Length | GB/T 12221 |
| Pressure Test Standards | GB/T 13927 |
| Upper Flange Size | ISO 5211 |
| Side Flange Size | CLASS150/PN10/PN16/10K |
Optional Configuration
| Valve Body | Valve Seat | Disc | Valve Shaft | Drive |
| Valve Body Material: DI/WCB/CF8/CF8W/ Aluminum Alloy/Copper Valve Body Type: Conventional Body/Soft Backing Body |
NBR/EPDM/SI/PTFE/VITON/Wear-resistant/Heat-resistant/Food-grade EPDM (Narrow rubber sleeve/Wide rubber sleeve/Vulcanized/Hard backing/Soft backing) |
DI/WCB/CF8/CF8W/C954 (With pin/Without pin/Milok) |
45/420/304/316/431 (Through shaft with pin/Dual half shaft/Through shaft without pin) |
Handle/Worm Gear/Electric/Pneumatic |
Size Information
| DN | A | D1 | L1 | L2 | L3 | B | φD2 | φD3 | n-φd | φD4 | |||||||||||||||||||||||||||||||||||||||||||||||
| 1.5” | DN40 | 34 | 62.5 | 55.5 | 111.5 | 25 | 9 | 65 | 50 | 4-8 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 2” | DN50 | 43 | 80 | 72 | 132 | 25 | 9 | 65 | 50 | 4-8 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 2.5" | DN65 | 46 | 95 | 86 | 138 | 25 | 9 | 65 | 50 | 4-8 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 3” | DN80 | 46 | 113 | 96 | 153 | 25 | 9 | 65 | 50 | 4-8 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 4" | DN100 | 52 | 135 | 108 | 167 | 28 | 11 | 90 | 70 | 4-10 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 5” | DN125 | 56 | 163 | 125 | 184 | 28 | 14 | 90 | 70 | 4-10 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 6” | DN150 | 56 | 190 | 138 | 195 | 28 | 14 | 90 | 70 | 4-10 | 135 | ||||||||||||||||||||||||||||||||||||||||||||||
| 8” | DN200 | 60 | 244 | 170 | 236 | 33 | 17 | 125 | 102 | 4-12 | 270 | ||||||||||||||||||||||||||||||||||||||||||||||
| 10" | DN250 | 68 | 298 | 209 | 266 | 33 | 22 | 125 | 102 | 4-12 | 270 | ||||||||||||||||||||||||||||||||||||||||||||||
| 12" | DN300 | 78 | 350 | 236 | 305 | 33 | 22 | 125 | 102 | 4-12 | 270 | ||||||||||||||||||||||||||||||||||||||||||||||
| 14" | DN350 | 78 | 397 | 271 | 327 | 45 | 22 | 125 | 102 | 4-12 | 270 | ||||||||||||||||||||||||||||||||||||||||||||||
| DN | A | D1 | L1 | L2 | L3 | φd | φD2 | φD3 | n-φd1 | N-b | K | ||||||||||||||||||||||||||||||||||||||||||||
| 16” | DN400 | 85.5 | 456 | 320 | 403 | 52 | 33.15 | 175 | 140 | 4-18 | 1-10 | 36.2 | |||||||||||||||||||||||||||||||||||||||||||
| 18” | DN450 | 103 | 516 | 351 | 415 | 52 | 38 | 175 | 140 | 4-18 | 1-10 | 41 | |||||||||||||||||||||||||||||||||||||||||||
| 20" | DN500 | 125 | 556 | 386 | 466 | 64 | 41.15 | 175 | 140 | 4-18 | 1-12 | 44.2 | |||||||||||||||||||||||||||||||||||||||||||
| 24” | DN600 | 151 | 658 | 446 | 525 | 70 | 50.65 | 210 | 165 | 4-22 | 1-16 | 54.7 | |||||||||||||||||||||||||||||||||||||||||||
| 28” | DN700 | 164 | 771.5 | 520 | 618 | 95 | 63.35 | 300 | 254 | 8-18 | 2-18 | 71.4 | |||||||||||||||||||||||||||||||||||||||||||
| 32” | DN800 | 189 | 811 | 580 | 665 | 95 | 63.35 | 300 | 254 | 8-18 | 2-18 | 71.4 | |||||||||||||||||||||||||||||||||||||||||||
The above information is for reference only. Mylte Valve reserves the right to update the design without prior notice. Please contact your sales representative before placing an order.
Related Products
Product Consulting
If you are interested in our products, please leave your contact information, we will contact you as soon as possible, thank you!
The company has sophisticated equipment, the use of advanced manufacturing technology, perfect detection means, strong production capacity. The company's main products: butterfly valves, gate valves, ball valves and other products, are widely used in power plants, petroleum, chemical, pharmaceutical, gas, food, paper, water supply and drainage, air conditioning, piping systems and other fields.
Contact Us
No.5 Road, Xiaozhan Industrial Park, Jinnan District, Tianjin