Henan Liwei Industry Co., Ltd:
1. Since 1988, Top 3 manufacturer of stainless steel expansion joint in China;
2. The Main Drafting Committee of National Standard for Expansion Joint;
3. Qualified Supplier for Nuclear Power Plant;
4. ISO9001: 2008 and ISO14001: 2004 Certified.
Stainless Steel Expansion Joint is the compensating element for thermal expansion and relative movement in pipelines, containers and machines. They consist of one or more metal bellows, connectors at both ends, and tie rods that depend on the application. They are differentiated according to the three basic types of movement: Axial, angular and lateral expansion joints.
Stainless Steel Expansion Joint is elastic vessel that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will return to its original shape (provided the material has not been stressed past its yield strength).
Features:
Economical end usage
Providing for lower initial costs in piping & construction work
Applications:
Diesel engine sets
Pipelines
Turbines
Compressors
Blowers
Vacuum pumps
Heat exchangers
Advantages:
Reduce vibration
Dampen sound transmission
Compensate lateral, torsional & angular movements
Compensate axial movements
Minimal face-to-face dimensions
Lightweight
Low movement forces required
Reduced fatigue factor
Reduced heat loss
Corrosion, erosion resistant
No gaskets
Liwei Stainless Steel Expansion Joint:
Why us:
Henan Liwei Industry Co., Ltd. Is a leading manufacturer of stainless steel expansion joint in China. We have:
(1) Strong R&D strength;
(2) Strict Quality Control System;
(3) Perfect Test System;
(4) Professional After-sale Service Team;
(5) OEM Service.
We are your qualified supplier and reliable friends!
Thanks for your attention. For more information, please feel free to contact us.
|
3. Material List : |
|
No. |
Name |
Material |
|
1) |
Inner rubber lining |
IIR,CR,EPDM,NR,NBR |
|
2) |
Outer rubber lining |
IIR,CR,EPDM,NR,NBR |
|
3) |
Casing ply |
Polyester cord fabric |
|
4) |
Flange |
Q235A,stainless steel |
|
5) |
Strengthening ring |
Q235A |
|
6) |
Stopper |
Q235A,stainless steel |
|
7) |
Limit bar |
Q235A,35#,stainless steel |
|
8) |
Nut |
Q235A,35#,stainless steel |
|
|
|
4. Physical and Mechanical Properties of Rubber Expansion Joint : |
|
No. |
Item |
index |
Measured value |
|
Inner/outer rubber lining |
|
1) |
Tensile strength (Mpa) |
≥12 |
13.5 |
|
2) |
Tensile yield (%) |
≥450 |
560 |
|
3) |
Tension set at break (%) |
≤25 |
20 |
|
4) |
Hardness (Shore A hardness) |
60±5 |
60 |
|
5) |
Brittleness temperature (°C) |
≤-30 |
-40 |
|
6) |
Cohesive strength (between cord fabric) (KN/m) |
≥2.0 |
4.8 |
|
7) |
100°Cx48h
Hot air aging |
Rate of Tensile Strength Reduction |
≤25 |
15 |
|
Rate of Ultimate Elongation Reduction |
≤30 |
20 |
|
8) |
Mass change (10%H2SO4*Room temperature) % |
≤3 |
2 |
|
9) |
Mass change (10%H2SO4*Room temperature) % |
≤3 |
2 |
|
|
|
5. Technical Parameters for Double Sphere Flexible Rubber Joint : |
DN
Diameter |
FF Length (mm) |
Axis displacement |
Radial displacement |
Deflexion
displacement |
|
Type-I |
Type-II |
Type-I |
Type-II |
Type-I |
Type-II |
|
mm |
inch |
Extension |
Compression |
Extension |
Compression |
|
32 |
1¼″ |
90 |
6 |
10 |
|
|
9 |
|
±7.5° |
|
|
40 |
1½″ |
95 |
7 |
10 |
|
|
9 |
|
±7.5° |
|
|
50 |
2″ |
105 |
7 |
10 |
|
|
10 |
|
±7.5° |
|
|
65 |
2½″ |
115 |
7 |
13 |
|
|
11 |
|
±7.5° |
|
|
80 |
3″ |
135 |
8 |
15 |
|
|
12 |
|
±7.5° |
|
|
100 |
4″ |
150 |
10 |
19 |
|
|
13 |
|
±7.5° |
|
|
125 |
5″ |
165 |
12 |
19 |
|
|
13 |
|
±7.5° |
|
|
150 |
6″ |
180 |
12 |
20 |
|
|
14 |
|
±7.5° |
|
|
200 |
8″ |
210 |
16 |
25 |
30 |
35 |
22 |
25 |
±7.5° |
±10° |
|
250 |
10″ |
230 |
16 |
25 |
30 |
40 |
22 |
25 |
±7.5° |
±12° |
|
300 |
12″ |
245 |
16 |
25 |
30 |
40 |
22 |
25 |
±7.5° |
±12° |
|
350 |
14″ |
255 |
16 |
25 |
35 |
45 |
22 |
30 |
±7.5° |
±12° |
|
400 |
16″ |
255 |
16 |
25 |
35 |
45 |
22 |
30 |
±7.5° |
±12° |
|
450 |
18″ |
255 |
16 |
25 |
36 |
47 |
22 |
30 |
±7.5° |
±12° |
|
500 |
20″ |
255 |
16 |
25 |
36 |
48 |
22 |
30 |
±7.5° |
±12° |
|
600 |
24″ |
260 |
16 |
25 |
40 |
50 |
22 |
33 |
±7.5° |
±12° |
|
700 |
28″ |
260 |
16 |
25 |
40 |
55 |
22 |
33 |
±7.5° |
±12° |
|
750 |
30″ |
260 |
|
|
40 |
55 |
|
33 |
|
±12° |
|
800 |
32″ |
260 |
16 |
25 |
45 |
55 |
22 |
|
±7.5° |
±12° |
|
900 |
36″ |
260 |
16 |
25 |
45 |
55 |
22 |
35 |
±7.5° |
±12° |
|
1000 |
40″ |
260 |
16 |
25 |
45 |
60 |
22 |
35 |
±7.5° |
±12° |
|
1100 |
44″ |
300 |
|
|
45 |
60 |
|
35 |
±7.5° |
±12° |
|
1200 |
48″ |
300 |
16 |
25 |
50 |
60 |
24 |
38 |
±7.5° |
±10° |
|
1300 |
52″ |
300 |
|
|
50 |
60 |
|
38 |
|
±10° |
|
1400 |
56″ |
350 |
|
|
50 |
70 |
|
40 |
|
±10° |
|
1500 |
60″ |
350 |
|
|
60 |
70 |
|
40 |
|
±10° |
|
1600 |
64″ |
350 |
18 |
25 |
60 |
70 |
24 |
46 |
±7.5° |
±10° |
|
1800 |
72″ |
400 |
18 |
25 |
60 |
75 |
24 |
48 |
±7.5° |
±10° |
|
2000 |
80″ |
450 |
|
|
70 |
75 |
|
50 |
|
±10° |
|
2200 |
80″ |
400 |
|
|
70 |
75 |
|
50 |
|
±10° |
|
2200 |
88″ |
500 |
|
|
70 |
80 |
|
60 |
|
±10° |
|
2400 |
96″ |
500 |
|
|
80 |
80 |
|
60 |
|
±10° |
|
2600 |
104″ |
500 |
|
|
85 |
80 |
|
60 |
|
±10° |
|
2800 |
112″ |
550 |
|
|
85 |
80 |
|
60 |
|
±10° |
|
3000 |
120″ |
550 |
|
|
85 |
80 |
|
60 |
|
±10°
|
|
|
|
|
|
Henan Liwei Industry Co. Ltd. (the former Henan Liwei pipeline Equipment Co. Ltd), located at Shangjie District, Zhengzhou city, is a manufacturer specializing in processing flexible rubber joint, expansion joint, metal expansion joint, steel bellows, rubber bellows, dismantling joint, non-metal compensatory, rubber lined pipe and rubber lined pipe fittings. It is also 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.
Our Liwei brand flexible rubber joints have various heavy calibers, types and high quality in the country. The products series have won four patents and our company is name "Quality and Credit Unit" by Henan Province. Our products have become the first choices for national power design, municipality and metallurgy units.
At present, our products include four serial flexible rubber joints, three types, tens of standard and common specification, eight series of metal pipe losing compensation joints and fourteen standard specifications and types, eleven types of standard and common specification products for four serial wind pipe non-metal compensators. Our annual comprehensive production capacity can reach over forty thousand sets and we also process various pipe joint matching flat welding flanges (steel international/non-international standard). Our products have been sold in over thirty cities and autonomous regions. With China`s entry to the WTO, our products have been exported to foreign countries as Italy, Spain, Pakistan, Singapore and East European countries, etc. And the products have become public famous brand products for design units and clients.
Our 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, Liwei brand products will be a red line between we and the clients for ever.
Why Choose Henan Liwei Industry Co., Ltd.
(1)Leader manufacturer of expansion joint in China;
(2)More than 24 years experience of manufacture of expansion joint;
(3)The Main Drafter of Chinese Standard (GB/T 26121-2010) rubber expansion joint;
(4)Approved supplier for nuclear power industry;
(5)Compensator engineering research center of Zhengzhou city (Approved by National Development and
Reform Commission);
(6)Member of CNEA(China Nuclear Energy Association );
(7)ISO9001: 2008 and ISO14001: 2004 certificated by CNAS(China National Accreditation Service for
Conformity Assessment);
(8)The largest vulcanizing equipment in China(DN 5000mm*15000mm);
(9)Manufacturer the largest rubber expansion joint in China(DN3600);
(10)Strict quality control system;
(11)Professional after-sale service team;
(12)Strong R&D strength;
Welcome to contact us freely!
