Maldives has 6900 hectares of arable land in the country. The land is poor and agriculture is very backward. Coconut production plays an important role in agriculture, with about 1 million coconut trees. Other crops in Maldives include millet, corn, banana and cassava. With the expansion of tourism in Maldives, the vegetable and poultry breeding industry has begun to develop. In 2013, the agricultural output value was 368 million Lafaya, accounting for about 1.7% of GDP. Maldives has only small ship repair and construction, and handicrafts such as processing of sea fish and fruit, weaving, clothing processing, etc. In 2011, the output value of manufacturing industry was 2.957 billion Lafaya, accounting for about 14.7% of GDP. Horse fishery is rich in resources, rich in tuna, bonito, mackerel, lobster, sea cucumber, grouper, shark, turtle and hawksbill. Maldivian fish are mainly exported to Hong Kong, Japan, Sri Lanka, Singapore and Taiwan, China, China.Maldives Transmission joint rest assured service enterprises Zhongyuan valve fittings Maldives overseas customer website make up more Maldives regional knowledge: In 2013, the fishery output value was 325 million Lafayeas, accounting for 1.5% of GDP.Transmission joint The manufacturer Zhongyuan valve fittings is located in Asia, bordering the Pacific Ocean, and the China-EU train runs through the country. Zhongyuan valve fittings has a service team for Maldives Transmission joint customers, which can provide reliable Transmission joint cement solutions for Maldives Transmission joint customers!

VSSJA type flange loose sleeve expansion joint

The flange type loose sleeve expansion joint produced by Gongyi Zhongyuan Innovation Pipeline Equipment Co., LTD. Model: vssja or af. The flange loose sleeve expansion joint is composed of a main body, gland, sealing ring and fastener. The flange loose sleeve expansion joint adopts the same sealing principle as the gland loose sleeve compensation joint. One end of the connection is flange connection and the other end is socket connection.

Customers from afar, hello! Today is 2025-05-22. Since the ZhongYuan website http://www.xdguandao.com was built, you are the 45126th visitor to ZhongYuan enterprise! ZhongYuan water supply equipment has been committed to technological innovation and product building in the Construction of chemical and municipal pipelines in power plants field since its establishment, and has accumulated to provide customer praise [VSSJA type flange loose sleeve expansion joint] products for many customers!
 

Product introduction:

The flange type loose sleeve expansion joint produced by Gongyi Zhongyuan Innovation Pipeline Equipment Co., LTD. Model: VSSJA or AF. The flange loose sleeve expansion joint is composed of a main body, gland, sealing ring and fastener. The flange loose sleeve expansion joint adopts the same sealing principle as the gland loose sleeve compensation joint. One end of the connection is flange connection and the other end is socket connection. Suitable for valves and other equipment and pipe connection, connection at the same time can compensate the pipeline axial displacement, so as to protect valves and other equipment.

[Product name] : VSSJA(AF) type flanged loose sleeve expansion joint (AF type flanged loose sleeve compensation joint)

[Product alias] : flange type loose sleeve expansion joint, loose sleeve compensation joint

[Product Specification] : [DN65mm-DN2600mm]

[Product pressure] : 0.25-2.5MPa

[Product Certification] : ISO9001-2008

[Scope of application ] : [Weak acid, weak base, weak corrosion class, oil, hot water, cold water, etc. ]

[Material] : Carbon steel, ductile iron, stainless steel.

[Product color] : Blue, can be adjusted according to customer requirements.

[Operating temperature] : -40 degrees to 180 degrees


Product advantage:

Flange type loose sleeve expansion joint is suitable for valves and other equipment and pipe connection, flange loose sleeve expansion joint at the same time can compensate the pipeline axial displacement and a certain amount of deflection and eccentricity, so as to protect valves and other equipment. The socket is also suitable for connecting with steel pipe, cast iron pipe, ductile iron pipe, PVC pipe, ABS pipe, etc. The VSSJA(AF) flanged loose sleeve expansion joint can cause the deformation of the sealing ring through the mutual extrusion of the gland and the body, so as to realize the compensation of the axial displacement of the pipeline and ensure the high sealing of the pipeline line. And because it adopts flexible connection, it can greatly reduce the impact of vibration and noise of pipeline lines. Ensure the smooth operation of the pipeline.


product feature:

The flange type loose sleeve expansion joint is designed by our company at the same time by absorbing the advantages of similar products at home and abroad. The flange loose sleeve expansion joint has the advantages of simple and reasonable structure, reliable sealing performance, no need to weld, convenient installation and disassembly. The flange loose sleeve expansion joint can compensate the displacement, dislocation and deflection of the pipeline within a certain range and has high reuse rate. Flange loose sleeve expansion joint is suitable for any medium pipeline, for valves, pumps and other equipment and pipeline connection.

1. can realize the pipeline line axial displacement compensation.

2. Reduce vibration and noise to a certain extent and protect the pipeline.

3. simple structure, convenient installation, easy maintenance and maintenance.

4. high-quality material selection is the basic guarantee of products.


VSSJA type flange loose sleeve expansion joint install:

After the flange type loose sleeve expansion joint is installed on the pipe, tighten the elastic sealing ring of the nut. Under the action of the nut gland, the sealing and connecting function of the outer ring of the pipe is tightly pressed depending on the mutual inclination. When the temperature changes, the pipe can be freely expanded in the middle of the joint, when the foundation sinks, the pipe can be deflected, and ensure that the seal does not leak, so as to play the purpose of automatic compensation.

If you need the flange type loose sleeve expansion joint produced by our company and want to consult the price, please contact us: 0371-68676867, you can also contact our enterprise QQ: 200832128, we have a special online customer service for you to answer the details!


Parts material:

Serial number

Name

Quantity

Material

1

Body

1

QT400-15、Q235A、ZG230-450、1Cr20

2

Gasket

1

QT400-15、Q235A、20、ZG230-450、1Cr13

3

Cover

1

NBR、CR、FPM、NR

4

Long Stud

1

Q235A、35、1Cr18Ni9Ti

5

Bolt

4n

Q235A、35、1Cr18Ni9Ti


Technical parameter:

DN

DW

L

Flange connection size

L1

L2

0.6MPa

1.0MPa

D

D1

n-d

D

D1

n-d

65

76

105

118

160

130

4-14

185

145

4-18

80

89

190

150

4-18

200

160

8-18

 

100

108

 

 

123

210

170

220

180

114

240

200

 

 

8-18

250

210

125

133

265

225

285

240

8-22

140

150

159

340

295

168

200

219

320

280

250

273

129

375

335

12-18

395

350

12-22

300

325

 

 

 

 

 

130

 

440

395

12-22

445

400

12-22

350

355

 

 

 

 

159

490

445

505

460

16-22

377

400

406

540

495

16-22

565

515

26-26

426

450

457

595

550

16-22

615

565

20-26

480

500

508

645

600

20-22

670

620

530

600

610

755

705

20-26

780

725

20-30

630

700

720

860

810

24-26

895

840

24-30

800

820

 

 

 

 

 

 

 

 

220

 

 

255

975

920

24-26

 

1015

950

24-33

900

920

1075

1020

1115

1015

28-33

1000

1020

1175

1120

28-30

1230

1160

28-36

1200

1220

1405

1340

32-33

1455

1380

32-40

1400

1420

 

 

270

1630

1560

36-36

1675

1590

36-42

1600

1620

1830

1760

40-36

1915

1820

40-48

1800

1820

2045

1970

44-40

2115

2020

44-48

2000

2020

2265

2180

48-42

2325

2230

48-48

2200

2220

275

2475

2390

52-42

2550

2440

52-56

2400

2420

2685

2600

56-42

2760

2650

56-56


Application field:

After the VSSJA flanged loose sleeve expansion joint is installed on the pipe, the gland nut is tightened. Under the action of the nut gland, the outer ring of the pipe is sealed and connected by the mutual inclination. So the product is widely used in chemical industry, construction, water supply and drainage, petroleum, refrigeration, health, fire, water heating, electricity, water heating and so on


Innovative pipeline product services:

Professional manufacturing, professional service, innovation pipeline for you to create more value!

Continuous improvement of service quality, excellence, "sincere service" is the innovation pipeline has been firmly believed in the goal.  Innovation pipeline in strict accordance with ISO9001-2000 quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales, service.  Strengthen communication with users, dedication to provide our customers with excellent products, perfect and beautiful service, innovation pipeline hereby make the following commitment:


Product standards:

Steel telescopic products are designed, manufactured and accepted in strict accordance with Chinese GB and HG standards and American API standards. The hardness of the sealing surface shall meet the requirements stipulated by the state, and the width shall exceed the national standards.


Reasons for choosing innovative pipelines:

Innovative water supply equipment Based on the advantages of the Construction of chemical and municipal pipelines in power plants industry, the key words "win-win cooperation" Construction of chemical and municipal pipelines in power plants VSSJA type flange loose sleeve expansion joint service provider -- Innovative water supply equipment's business philosophy can be summarized into eight words "honesty based, win-win development". Innovative water supply equipment has always implemented this concept well for both its internal employees and its external VSSJA type flange loose sleeve expansion joint partners, thus gaining long-term good business reputation and cooperative relations in the Construction of chemical and municipal pipelines in power plants field and promoting the stable development of Innovative water supply equipment.

 


Instructions for purchasing innovative pipeline products:

1、 Product Material Description: Due to the possibility of scratches or dirt on the surface of materials during transportation or distribution, and the possibility of surface oxidation or insufficient aesthetics during storage, the images and physical objects may also differ. Our manufacturer will definitely make our products more aesthetically pleasing, using high-quality raw materials for production. Our manufacturer promises that our products are of high quality and affordable, and are entirely a customer's choice. If you have other models or specifications of products, you can contact our customer service online or consult us when purchasing

2. Shipping instructions: 

1. Due to the unique nature of the materials, all materials are shipped after payment by the customer, and are specially customized products for the customer. Once sold, there are no returns or exchanges for non material or quality issues! Please understand. 

2. Please provide a clear description of the specific specifications, nominal diameter, working pressure, medium to be conveyed, quantity, and required performance of the required product before shopping. The main reasons for doing so are: 

1) Ensure that the product prices quoted by the manufacturer are correct and accurate; 

2) For customers, it provides protection for their own interests and prevents them from misquoting product prices, causing economic losses for both parties and causing unpleasantness for everyone; 

3) Once the customer has made a decision and both parties sign a contract, the products produced by the manufacturer can meet the actual needs of the customer. 

3. If the customer did not provide a clear description, the seller will not assume any responsibility in the event of a dispute! Please understand!


Pre-sale services:

Product introduction, technical exchange, non-standard product design, troubleshooting.

In sales service:

1. Maintain a trustworthy contract, ensure timely supply, and keep in touch with customers at all times. 

2. For special or complex products, our factory arranges technical personnel to provide training and guidance to users on product use, troubleshooting, adjustment, and maintenance.

after-sale service:

1. The warranty period for innovative pipeline products is 12 months from the factory, and the "three guarantees" service (product quality issues) is implemented. 

2. Our factory regularly organizes technical and inspection personnel to visit our products during use, seeking feedback from users on product quality, usage status, improvement opinions, and other aspects, in order to further improve product quality. 

3.Quickly respond to customer complaints about product quality issues 

4. For after-sales service, users are required to fill out the quality feedback form after the service and provide appraisal opinions, in order to jointly improve the product and service quality of the innovation pipeline.


Order Information:

1. The customer has special requirements for the product and must provide the following instructions in the order contract:

1) Structure length; 

2) Connection form; 

3) , nominal diameter, full diameter, reduced diameter, pipeline size; 

4) Medium used and temperature and pressure range; 

5) Our factory can customize and design special products according to customer specific requirements for experiments, inspection standards, and other requirements. 

2. Our company can customize and design special products according to customer specific requirements. 

3. If the customer provides the determined product type and model, the customer should correctly explain the meaning and requirements of the model, and sign the contract on the condition of mutual understanding between the supply and demand parties. 

 

! Less nonsense and more practical work! No amount of rhetoric and packaging planning can compare with doing something on the product! ZhongYuan precipitate the brand value of [VSSJA type flange loose sleeve expansion joint] with accumulated little actions! It is fate to know each other, and cooperation is a share.


ZhongYuan takes you to see China! China is a vast country located in East Asia, with a rich history and diverse culture spanning thousands of years.


There are many historical and cultural heritages in China. I believe these cultural stories with a long history are attractive enough to make TheRepublicofMaldives friends interested in Chinese VSSJA type flange loose sleeve expansion joint products.


Cultural elements that must be comprehended when visiting China:


Guilin is a city in southern China that is famous for its breathtaking natural scenery, which is often described as the most beautiful landscape under heaven. The city's stunning mountains, winding rivers, and lush greenery have been enchanting visitors for centuries and continue to draw tourists from around the world.
Perhaps the most iconic feature of Guilin's landscape is its karst hills. These towering limestone peaks rise abruptly from the ground, creating an otherworldly landscape that is both dramatic and serene. The hills are often shrouded in mist or surrounded by lush foliage, adding to their mystique. Some of the most famous karst formations in Guilin include Elephant Trunk Hill, Moon Hill, and Seven Star Park.
Another striking feature of Guilin's landscape is its winding rivers. The Li River is perhaps the most famous of these, winding through the karst hills and providing stunning views at every turn. Visitors can take a leisurely boat ride down the river, admiring the dramatic peaks and tranquil waterways. Other popular rivers in Guilin include the Yulong River and the Taohua River, both of which offer scenic boat rides and opportunities for outdoor recreation.


Feel free to get in touch with us in the manner that’s most convenient for you.
 

Use the contact form below to send us a message. We usually respond within 24 hours.
 

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HENAN, CHINA
Gongyi City, Henan Province, China
Phone: +8618539447368
Email: 18539447368@163.com
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