1.Specifications
1) Material:SS304,SS316L
2) Other standards are available upon requests
3) Welding neck, slip-on, lap-joint, blind etc.
4)Reasonable price with excellent quality
5).Abundant stock and prompt delivery
2.Features:
1) We can supply all kind of stainless steel flanges according to DIN / ANSI / EN1092
2) Other standards are available upon requests
3) Welding neck, slip-on, lap-joint, blind, socket welding and threaded flanges are
among the selection. The large stock of billets and semi-finished flanges enables
us to deliver non standard flanges within a few days if required
3.Advantages:
1)26 years of production experience at your service.
2) The fastest delivery
3)The lowest price
4) Most comprehensive standards and materials for your choice.
5) 100% export.
6) Our products EXPORT to Africa, Oceania, mid east, eastern Asia, Western Europe etc.
4. Why choose us
Henan Liwei Industry Co., Ltd. Is a leading manufacturer of piping expansion joint in China. We have:
(1)More than 24 years experience of manufacture
(2)The Main Drafting Units of Chinese Standard flexible rubber joint
(3)Compensator engineering research center of Zhengzhou city.
(4)Member of CNEA(China Nuclear Energy Association )
(5)ISO9001:2008 and ISO14001:2004 certificated by CNAS(China National Accreditation Service for Conformity Assessment)
(6)The largest vulcanizing equipment in China.
5.An Overview of Liwei Factory:
We have more than 25 years' experience of manufacturing. We import high quality rubber from Japan and USA as raw materials of the expansion joints. Moreover, we have the largest vulcanizing boiler(5m*15m) in Asian.
6. Delivery time & Packaging details:
1)Delivery time:
Within 30 days after receipt of the deposit, or as your request:
2) Packaging details:
Unfumigation wooden case (out package) and plastic film and textile membrane(inside package). We can make change as your request.
Thanks for your attention. For more information, please feel free to contact us.
Sunny Yue
Mobile: +86-13303813898
OUR REQUIRED DIMENSIONS(ACCORDING GOST) |
| PN | DN | Mounting dimension | OD(outside diameter of the pipe),mm(dH) | Diameter of the raised face,D2 | Bolts | Thickness | GOST Weight kg/pc |
| Ouioide diameter,mm,D | Bolts holes axis diameter(centers of the opposite holes),mm D1 | Inside diameter,mm(d) | Number of bolts'holes,n | Diameter of bolts'holes,mm(d) | flange ridge's height,rnm(h) | Total thickness(toghether with ridge's height)mm(h+b) | Thickness(without ridge's heighe),mm(b) |
| 2.5 | 20 | 90 | 65 | 26 | 25 | 50 | 4 | 11 | 2 | 14 | 12 | 0.58 |
| 25 | 100 | 75 | 33 | 32 | 60 | 4 | 11 | 2 | 14 | 12 | 0.64 |
| 32 | 120 | 90 | 39 | 38 | 70 | 4 | 14 | 2 | 15 | 13 | 1.01 |
| 40 | 130 | 100 | 46 | 45 | 80 | 4 | 14 | 3 | 16 | 13 | 1.21 |
| 50 | 140 | 110 | 59 | 57 | 90 | 4 | 14 | 3 | 16 | 13 | 1.33 |
| 65 | 160 | 130 | 78 | 76 | 100 | 4 | 14 | 3 | 18 | 15 | 1.63 |
| 80 | 185 | 150 | 91 | 89 | 128 | 4 | 18 | 3 | 18 | 15 | 2.44 |
| 100 | 205 | 170 | 110 | 108 | 148 | 4 | 18 | 3 | 18 | 15 | 2.85 |
| 125 | 235 | 200 | 135 | 133 | 178 | 8 | 18 | 3 | 20 | 17 | 3.88 |
| 150 | 260 | 225 | 161 | 159 | 202 | 8 | 18 | 3 | 20 | 17 | 4.39 |
| 200 | 315 | 280 | 222 | 219 | 258 | 8 | 18 | 3 | 22 | 19 | 5.89 |
| 250 | 370 | 335 | 273 | 273 | 312 | 12 | 18 | 3 | 23 | 20 | 7.67 |
| 300 | 435 | 395 | 325 | 325 | 365 | 12 | 22 | 4 | 24 | 20 | 10.28 |
| 350 | 485 | 445 | 377 | 377 | 415 | 12 | 22 | 4 | 26 | 22 | 12.58 |
| 400 | 535 | 495 | 426 | 426 | 465 | 16 | 22 | 4 | 28 | 24 | 15.2 |
| 500 | 640 | 600 | 530 | 530 | 270 | 16 | 22 | 4 | 29 | 25 | 19.72 |
| 600 | 735 | 705 | 630 | 630 | 670 | 20 | 26 | 5 | 30 | 25 | 26.24 |
| 800 | 975 | 920 | 820 | 820 | 880 | 24 | 30 | 5 | 32 | 27 | 46.14 |
Henan Liwei Industry Co. Ltd, established in 1983, is a leading manufacturer specializing in processing various steam, water, wind pipe expansion joints and compensation joints, and a main base for producing crushers and superfine grinding mills.
Liwei is the appointed enterprise by the former chemical industry ministry, national construction ministry and general petrol chemical company, member unit of China Water Supply Association and Power Equipment Network Union, and joints production unit recommended by China Water Association and National Metallurgy Ministry.
Based on the scientific management mode of modern enterprises, the company owns advanced process, strong technical strength, leading production equipment and complete testing instruments and apparatus, and it has 5 senior engineers, 16 engineers, 30 senior technicians and about 300 employees. With a set of effective service system, the company has formed a service team characterized of honesty and credit, planned site for clients free of charge as well as design and installation of foundation drawings and flow drawings. It can provide professional technical training, dispatch technicians for installation and commissioning in suit.
VTM Series Grinding Mill is the new product of Liwei in 2005, which have been granted certificates of national invention patent and utility model patent (Patent No.: ZL200510017387.2). The superfine vertical roller-based mill was developed and produced by Lu Fucai, a famous mill expert at home, professor Xu Changbai from Zhengzhou University and our company, and it is popular among users after it is put into practice. The mill is an original product with power on the grinding head which borrows advanced technologies at home and abroad. It has characteristics of low vibration, low noise, low energy consumption and high output, etc.
Liwei company has been equipped with rich technical strength, excellent design and complete products test measures. We also own a set of strict management system and high-quality technicians. In 2004, we have gained ISO9001 and ISO14001 certificate.
Insisting on the rennet "Development Through Technology, Making More Friends, Creating Green Environment and Responsible For Future", the company has been devoting itself to creating top products and well serving all clients around the world.
