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KDF flanging rubber joint is an improved version of KXT single ball rubber joint according to user's requirements, which can bear more displacement and pressure. What's more important is to improve the pull-out condition of single ball rubber joint under high pressure. The sealing surface of the improved large flanging rubber joint is consistent with the outer diameter of the flat welding flange, and there are holes on the sealing surface, which completely connects the rubber joint and the pipe as a whole, thus improving the stability of the rubber joint. The product has high internal density, can bear high pressure and has good elastic deformation effect.

KDF flanging rubber joint is composed of fabric reinforced rubber parts and flat flexible joint, which is used for pipe vibration reduction, noise reduction and displacement compensation. It is a kind of pipe joint with high elasticity, high air tightness, medium resistance and climate resistance. New materials and raw materials are not only required to meet the requirements of international standards.

Product alias: Flexible rubber joint, rubber flexible connection, shock absorber, flange flexible connection, rubber flexible joint, rubber pipe joint, etc
Product specification: 【DN32mm-DN3000mm】
Product pressure: 0.6-2.5MPa
Shock absorption level: A, excellent shock absorption
Product certification: ISO9001-2008
Scope of application: [acid, alkali, corrosion, oil, hot water, cold water, compressed air, compressed natural gas, etc.]
Product material: ~No pollution, no lead and other toxic substances
Product color: Black, physical color see the commodity display picture
Working temperature:- 40 to 80 degrees (high temperature resistant rubber joint can also be processed)

  • Quality stability: the implementation of the whole process of quality monitoring, meticulous, all-round detection!
  • Reasonable price: efficient internal cost control, reduce expenses, and benefit customers!
  • Fast delivery: advanced production line, sufficient stock, shorten the delivery time!
  •  Rubber joint

Online consultation

Purchase hotline: 021-6221-2627

Product advantages

KDF flanging rubber joint is a kind of pipe joint with high elasticity, high air tightness, medium resistance and climate resistance. Due to its good comprehensive performance, flexible rubber flexible joint is mainly used for the lifting and transportation of raw water and sewage, water supply and cooling circulating water of thermal power plant, pipeline transportation of chemical substances in metallurgical industry, condensate water, chemical industry, cooling and dilution in petrochemical industry and flexible connection between long and short distance pipelines in other industries. It is also suitable for all kinds of rubber with high abrasion resistance.

Product features

Installation instructions of KDF flanging rubber joint:

1. Rubber joint must be in natural state during pipeline construction, and installation beyond displacement limit is strictly prohibited.

2. When the pipeline medium is acid and alkali resistant, oil resistant, high temperature and other special materials, the joint with a gear higher than the pipeline working pressure should be selected.

3. When the rubber joint is installed on the ground, in the air or vertically, the actual working axial pressure of the rubber joint is less than the support force of the pipeline. Otherwise, the anti pulling device should be installed to prevent the product from running stably.

4. The flange connecting rubber joint shall be valve flange or flange conforming to GB / t9115.1-2000.

5. During vertical installation and overhead installation, both ends of the product shall be installed with corresponding fixed support and stress support to prevent pulling off after working under pressure.

6. Installation should be far away from heat sources, do not use media that do not meet the requirements of this product.

7. After the rubber flexible joint is subjected to pressure for the first time (such as installation and pressure test) or before it is put into use again after long-term shutdown, the bolts shall be re pressurized and tightened before putting into operation.

8. When the pipeline displacement is greater than or equal to the large compensation of the joint, the number of joints should be increased to parallel the displacement. It is strictly forbidden to make the joint in the limit deflection displacement and deviation state in order to adjust the pipeline out of tolerance, let alone exceed the limit (expansion, displacement, deflection, etc.). See the table below for the specific installation data.

9. For high-rise water supply or suspended water supply, the pipeline shall be fixed on the hanger and bracket, and the joint shall not bear the weight and axial force of the pipe itself, otherwise the joint shall be equipped with anti pulling device (the bearing force must be greater than the axial force of the pipeline).

10. When installing the rubber joint, the screw of the bolt should extend to the outside of the joint, and the bolt of each flange end face should be repeatedly and evenly tightened according to the method of diagonal pressure to prevent pressure deviation.

classic case

Shanghai Luoying and Jilin Chemical Industry Park's flanging single ball rubber joint cooperation project

Shanghai Luoying and Jilin Chemical Industry Park's flanging single ball rubber joint cooperation project was officially launched yesterday. Five chemical projects, including long-chain dicarboxylic acid, with a total investment of 11.3 billion yuan, officially entered Jilin Chemical Industry Park on January 24, becoming a new member of this family. Among these new projects, the highlight is the construction of biochemical park. With abundant paraffin products and complete chemical industry system in the park as resources, the project will construct 15000 T / a long-chain dicarboxylic acid project, 120000 T / a engineering plastic project, and a series of deep-processing projects of long-chain dicarboxylic acid such as hot-melt adhesive, musk and high-grade powder coating. Two long-chain dicarboxylic acid production lines will be constructed in the first phase of the project, which is planned to start in March. The construction of long chain of dicarboxylic acid will be started in the downstream. The output value of the bio chemical industry park is expected to reach 20 billion yuan after its completion. In addition, after the completion of the 400000 T / a ABS expansion project of Jilin Petrochemical, the production capacity will reach 580000 tons. Relying on sufficient ABS raw materials, the investor plans to build a large deep-processing project in Jilin Province, such as 200000 sets of automobile plastic parts, 200000 sets of TV sets and 100000 sets of washing machine shell plastic, etc. in the park, the ABS industrial chain will be effectively extended to meet the market demand. It is understood that the construction of five chemical projects in Jilin Chemical Industrial Park has signed a 60000 yuan single ball rubber joint transaction contract with Shanghai Luoying. Shanghai Luoying stands out among many bidders with its excellent product performance and strong enterprise strength. It is believed that in the near future, it will be a new star in the pipeline accessories industry.

Product diagram

 Flanging rubber joint

Parts materials

Please click on the picture to see the larger picture

 Flanging single ball rubber joint

No Part Material
one Body NR, Cr, IIR, NBR, FKM and EPDM
two Inner & outer rubber Natural rubber (NR) chloroprene rubber (CR) butyl rubber (IIR) nitrile rubber (NBR) fluororubber (FKM) ethylene propylene diene monomer (EPDM) polytetrafluoroethylene (PTFE)
three Body carcas Nylon cord fabric
four Pressurizing ring Multi strand copper plating steel wire
five Flange Cast and forged carbon steel (Q235), stainless steel (201, 304, 316, 321), plastic (CPVC, PVDF, PPH, UPVC, RPP)
 

technical parameter

Please click on the picture to see the larger picture

 KDF flanging single ball rubber soft joint

Item | model medol KDF-1 KDF-2 KDF-3 A. Such as medium oil, acid-base material
B. There are special requirements for working temperature
C. Can also be customized by letter
D. To be explained when ordering
A. If media is oil, acid or alkali. 
B. If special requirements for working temperature 
C. If OEM orders with drawings or samples 
D. Please Inform us about above when ordering
Working pressure MPa (kgf / cm2) 1.0(10) 1.6(16) 2.5(25)
Burst pressure MPa (kgf / cm2) 2.0(20) 3.0(30) 4.5(45)
Vacuum kPa vacuum kPa (mm / Hg) 53.3(400) 86.7(650) 100(750)
Applicable temperature -20 ℃ ~ + 115 ℃ (special up to - 30 ℃ ~ + 250 ℃) - 20 ℃ ~ + 115 ℃ (- 30 ℃ ~ + 250 ℃ under special conditions)
Applicable medium Air, compressed air, water, sea water, oil, acid, alkali, etc
Note: The materials of main parts are the same with those of KXT type

Main date

Nominal diameter dn
Nominal Diameter
(mm)
length
LengthLmm
Axial displacement
Axial displacement mm
Lateral displacement
Haorizontal isplacement mm
Deflection angle
Angular deflection(a1+a2)°
mm

Inch

Extension Compression
thirty-two one point two five ninety-five six nine nine fifteen
forty one point five ninety-five six ten nine fifteen
fifty two one hundred and five seven ten ten fifteen
sixty-five two point five one hundred and fifteen seven thirteen eleven fifteen
eighty three one hundred and thirty-five eight fifteen twelve fifteen
one hundred four one hundred and fifty ten nineteen thirteen fifteen
one hundred and twenty-five five one hundred and sixty-five twelve nineteen thirteen fifteen
one hundred and fifty six one hundred and eighty twelve twenty fourteen fifteen
two hundred eight two hundred and ten sixteen twenty-five twenty-two fifteen
two hundred and fifty ten two hundred and thirty sixteen twenty-five twenty-two fifteen
three hundred twelve two hundred and forty-five sixteen twenty-five twenty-two fifteen
three hundred and fifty fourteen two hundred and fifty-five sixteen twenty-five twenty-two fifteen
four hundred sixteen two hundred and fifty-five sixteen twenty-five twenty-two fifteen
four hundred and fifty eighteen two hundred and fifty-five sixteen twenty-five twenty-two fifteen
five hundred twenty 255-320 sixteen twenty-five twenty-two fifteen
six hundred twenty-four 260-350 sixteen twenty-five twenty-two fifteen
seven hundred twenty-eight 260-350 sixteen twenty-five twenty-two fifteen
eight hundred thirty-two 260-350 sixteen twenty-five twenty-two fifteen
nine hundred thirty-six 260-350 sixteen twenty-five twenty-two fifteen
one thousand forty 260-350 eighteen twenty-six twenty-four fifteen
one thousand and two hundred forty-eight 260-550 eighteen twenty-six twenty-four fifteen
one thousand and four hundred fifty-six 350-550 twenty twenty-eight twenty-six fifteen
one thousand and five hundred sixty 350-550 twenty twenty-eight twenty-six fifteen
one thousand and six hundred sixty-four 350-550 twenty-five thirty-five thirty ten
one thousand and eight hundred seventy-two 350-550 twenty-five thirty-five thirty ten
two thousand eighty 350-550 twenty-five thirty-five thirty ten
two thousand and two hundred eighty-eight 400-550 twenty-five thirty-five thirty ten
two thousand and four hundred ninety-six 400-550 twenty-five thirty-five thirty ten
two thousand and six hundred one hundred and four 400-550 twenty-five thirty-five thirty ten
two thousand and eight hundred one hundred and twelve 400-550 twenty-five thirty-five thirty ten
three thousand one hundred and twenty 400-500 twenty-five thirty-five thirty ten
three thousand and two hundred one hundred and twenty 400-500 twenty-five thirty-five thirty ten
three thousand and four hundred one hundred and twenty 400-500 twenty-five thirty-five thirty ten
three thousand and six hundred one hundred and twenty 400-500 twenty-five thirty-five thirty ten
three thousand and eight hundred one hundred and twenty 400-500 twenty-five thirty-five thirty ten
four thousand one hundred and twenty 400-500 twenty-five thirty-five thirty ten
Note: 1. Special requirements can be made according to the user's drawings. The flange standard is GB / t9115.1-2000. Flange standard (GB, JB, Hg, CB, ANSI, DIN, BSEN, NF, en, JIS, ISO, etc.) can be selected. Rubber ball can be used as natural rubber, EPDM, neoprene, butyl rubber, nitrile rubber, fluororubber, etc.  
2. If the products above DN200 are used for suspended water supply, the pipeline must be provided with fixed support or fixed bracket, otherwise the product shall be installed with anti pulling device.  
3. The corresponding flange shall be valve flange or GB / t9115.1-2000 flange.  
Notes: 1. For OEM orders with special requirement, rubber joints can be made according to customers' drawings. Generally, flange standard is GB/T9115.1-2000, other GB, JB, HG, CB, ANSI, DIN, BSEN, NF, EN, JIS, ISO flanges are also available upon request. Material of rubber body can be NR natural rubber, EPDM, Neoprene, IIR butyl rubber, NBR Buna-N, FKM, etc.
2.When rubber joints size above DN200 are used for overhead water supply system, the pipes must be equipped with fixed supports or fixed brackets, otherwise control units shall be installed on rubber joints.
3.Matching flanges of rubber joints shall be valve flanges or GB/T9115.1-2000 flanges.

Shanghai Luoying pipeline equipment Co., Ltd. is specialized in manufacturing: KDF flanging rubber joint. We provide you with KDF flanging rubber joint application solution, KDF flanging rubber joint price, detailed explanation of various operating conditions of KDF flanging rubber joint, and providing quotation information of KDF flanging rubber joint. Products in strict accordance with international standards and quality requirements of raw materials, to eliminate the phenomenon of shoddy workmanship, ~ standard means that the raw materials of products not only need new materials, but also need new materials of ~ grade.

 

Product service

Professional manufacturing, professional services, Luoying to create more value for you!
Constantly improve the quality of service, excellence, "sincere service" is the eternal theme of Luo Ying. Luo Ying strictly in accordance with ISO9001-2000 quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. To strengthen communication with users, we will wholeheartedly provide customers with high-quality products and perfect services. Hereby, Luo Ying makes the following commitments:

Product standards
The products are designed, manufactured and accepted in strict accordance with Chinese GB, Hg standards and American API standards. The width of sealing surface exceeds the national standard.
Pre sales service
Product introduction, technical exchange, non-standard product design, troubleshooting.
Service in sale
1. Keep the contract, ensure timely supply, keep in touch with customers at any time. 2. For special or complex products, our factory arranges technical personnel to train and guide users in the use, troubleshooting, adjustment and maintenance of products.
after-sale service
1. The warranty period of Luoying's products is 12 months from the date of delivery, and the "Three Guarantees" service (return, replacement and repair) is implemented.
2. During the use of the products, our factory regularly organizes technical and inspection personnel to visit and consult users for feedback on product quality, use status and improvement opinions, so as to further improve product quality.
3. After sales service personnel rush to the scene within 24-36 hours (48 hours outside the province).
4. For after-sales service, users are required to fill in the quality feedback form after service, and make appraisal opinions, so as to jointly improve the product quality and service quality of Luoying.

Ordering process and instructions

1. Please fax customer purchase list to 021-64207088 e-mail: Luoying @ luoyingsh.com or call 021-622122627.
2. Receive the customer purchase list, provide the customer with product model selection and quotation (price list).
3. Specific agreement: delivery date, special requirements and other matters.


Ordering instructions
1. If the customer has special requirements for the product, the following instructions shall be provided in the order contract:
(1) Structural length
(2) Connection form
(3) Nominal diameter, full bore, reduced diameter, pipe size
(4) Medium, temperature and pressure range
(5) Our factory can make and design special products according to the special requirements of customers.
2. Our factory can configure and design special products according to the special requirements of customers.
3. If the customer provides the determined product type and model, the customer shall correctly explain the meaning and requirements of the model, and sign the contract under the condition that both parties understand and agree.

Online submission of demand feedback

You can fill in the form below and submit your contact information and product requirements to us. We will contact you as soon as possible. Thank you! In order to get in touch with you in time, please fill in your contact information and requirement information completely.

contact us

  • Customer service hotline: 021-6221-2627
  • Business QQ: 319992131
  • Business fax: 021-6420-7088
  • Email: info@luoyingsh.com
  • Address of standard factory building, Songjiang town, Shanghai
  • Post code: 201201

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