Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 1000 Sets/Week |
| Packaging Details | Wooden Box |
| Size | DN50---DN300 |
| Bellows Material | SS304,SS316,SS321 |
| Flange Standard | DIN,ANSI,JIS,BS,AS |
| Flange Material | Carbon Steel |
| Control Unit | Carbon Steel |
| Brand Name | JINGNING |
| Model Number | JNMH |
| Certification | CE |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 1000 Sets/Week |
| Packaging Details | Wooden Box | Size | DN50---DN300 |
| Bellows Material | SS304,SS316,SS321 | Flange Standard | DIN,ANSI,JIS,BS,AS |
| Flange Material | Carbon Steel | Control Unit | Carbon Steel |
| Brand Name | JINGNING | Model Number | JNMH |
| Certification | CE | Place of Origin | China |
| High Light | stainless steel expansion joint ，flanged expansion joint | ||
Bellows expansion joint
Pipe bellows, also known as bellows expansion joint, is composed of metal bellows and components, mainly to ensure the safe operation of the pipeline. It is a flexible thin-wall transverse bellows device with expansion function. Its principle is to use its elastic expansion function to compensate the axial displacement, angular displacement, lateral displacement and combined displacement caused by thermal deformation, mechanical deformation and various mechanical vibration. It has the functions of pressure resistance, sealing, corrosion resistance, temperature resistance, impact resistance, vibration and noise reduction.
Performance of bellows expansion joint
1. Good compensation.
2. Able to withstand high temperature.
3. Leakage can be reduced.
4. Vibration resistance and high-speed performance.
5. The specific pressure of the spring can be reduced.
6. It can transmit torque in the pipeline.
7. The sealing failure caused by scaling can be reduced through certain structural design.
Technique Parameter of bellows expansion joint
| Diameter (mm)
| Pressure grade (Mpa) | Available Area of Bellows (c㎡)
| Max Size of External Diameter
| Length | |||
| 1.0 | 1.6 | 2.5 | Flange | Tube | |||
| 32 | 20/26 | 18/63 | 15/98 | 16 | 225 | 160/250 | 264/280 |
| 40 | 20/24 | 18/89 | 15/98 | 23 | 244 | 164/259 | 269/289 |
| 50 | 20/70 | 18/70 | 15/106 | 37 | 259 | 172/276 | 282/306 |
| 65 | 26/44 | 22/55 | 15/138 | 55 | 270 | 215/294 | 300/322 |
| 80 | 34/33 | 28/41 | 19/68 | 81 | 284 | 240/338 | 344/366 |
| 100 | 40/75 | 35/93 | 25/54 | 121 | 304 | 235/317 | 323/345 |
| 125 | 38/59 | 34/74 | 29/117 | 180 | 334 | 282/314 | 316/342 |
| 150 | 40/62 | 34/78 | 29/92 | 257 | 364 | 282/339 | 338/367 |
| 200 | 59/52 | 53/58 | 46/65 | 479 | 442 | 340/402 | 402/426 |
| 250 | 87/35 | 79/39 | 48/78 | 769 | 507 | 393/459 | 493/399 |
| 300 | 87/37 | 79/41 | 71/47 | 1105 | 562 | 464/525 | 564/565 |
| 350 | 87/44 | 79/48 | 71/45 | 1307 | 622 | 509/564 | 609/604 |
| 400 | 87/43 | 79/47 | 71/47 | 1611 | 562 | 522/566 | 622/628 |
| 450 | 87/37 | 79/41 | 47/75 | 1972 | 700 | 403/498 | 503/523 |
| 500 | 87/68 | 79/75 | 71/45 | 2445 | 760 | 431/523 | 531/554 |
| 600 | 87/85 | 79/94 | 71/82 | 3534 | 835 | 478/548 | 578/588 |
| 700 | 87/77 | 79/85 | 71/103 | 4717 | 1110 | 490 | 590 |
| 800 | 102/102 | 94/112 | 71/95 | 5822 | 1265 | 502 | 602 |
| 900 | 102/97 | 94/107 | 80/123 | 7620 | 1186 | / | 698 |
| 1000 | 102/105 | 94/106 | 82/117 | 9043 | 1286 | / | 692 |
Bellows expansion joint details show
Production process of bellows expansion joint
JINGNING has more than 17 years of design experience in the manufacture of pipe bellows, metal expansion joints, disassembly joints, pipes and other industrial fittings. The products comply with GB, ISO, DIN, ANSI, BS, JIS and other international standards and special requirements of customers.
Bellows expansion joint advantages
1. The product price is the ex factory price
2.17 years of manufacturing experience and 5 years of export experience
3. Strict quality inspection, the quality far exceeds the industry standard.
4. Mold customization and OEM of various specifications
5. Large inventory
Bellows expansion joint application
As an elastic compensation element with free expansion, universal metal expansion joint has the advantages of reliable operation, good performance and compact structure. It has been widely used in chemical industry, metallurgy, nuclear energy and other departments.
Company Details
Business Type:
Manufacturer
Year Established:
2004
Total Annual:
30000000-50000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Jingning is a specialist company in expansion joints for pipe equipment. Since 2004 we stand for values which are typical of a family owned company: the spirit of innovation, reliability, continuity and flexibility in thought and action.We are a reliable supplier to our customers who count... Jingning is a specialist company in expansion joints for pipe equipment. Since 2004 we stand for values which are typical of a family owned company: the spirit of innovation, reliability, continuity and flexibility in thought and action.We are a reliable supplier to our customers who count...
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