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KDF-F-Flanged single ball limit rubber joint

KDF-F-Flanged single ball limit rubber joint

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Describe
KDF-F Flanged Single Ball Limit Rubber Soft Joint
The KDF-F flanged rubber soft joint is a modified version of the KXT single sphere rubber joint according to the user's needs, which can withstand relatively large displacement and pressure. More importantly, the pull-out condition of the single-ball rubber joint under excessive pressure is improved. The modified large-flanged rubber joint sealing surface is the same as the outer diameter of the flat-welded flange, and the sealing surface is also drilled. The rubber joint is connected to the pipe as a whole, which improves the stability of the pipe operation.
 
It is a pipe joint with high elasticity, high air tightness, medium resistance and weather resistance. The internal density is high, it can withstand high pressure, and the elastic deformation effect is good.
 
The rubber soft joint is composed of a fabric-reinforced rubber part and a loose metal flange, which is used for joints for vibration reduction, noise reduction and displacement compensation. Gongyi Xinli strictly follows the international standards and raw material quality requirements, and eliminates the phenomenon of cutting corners. The environmental protection standard means that the raw materials of the products not only need new materials, but also need environmentally-friendly new materials. Rubber joints are also known as flexible rubber joints, pipe shock absorbers, shock absorbers, soft joints, and the like.
 
[product alias]: flexible rubber joint, rubber soft joint
[product pressure]: 0.6MPa-2.5MPa
[product specifications]: [DN32mm-DN4000mm]
 
Features
The KDF-F flanged rubber joint is a modified version of the KXT single sphere rubber joint according to the user's needs, which can withstand relatively greater displacement and pressure. More importantly, the pull-out condition of the single-ball rubber joint under excessive pressure is improved. The modified large-flanged rubber joint sealing surface is the same as the outer diameter of the flat-welded flange, and the sealing surface is also drilled. The rubber joint is connected to the pipe as a whole, which improves the stability of the pipe operation.
 
It is a pipe joint with high elasticity, high air tightness, medium resistance and weather resistance. The internal density is high, it can withstand high pressure, and the elastic deformation effect is good.
 
The rubber joint is composed of a reinforced rubber piece and a loose metal flange, and is used for joints for vibration reduction, noise reduction and displacement compensation. Strictly in accordance with international standards and raw material quality requirements, to prevent the phenomenon of cutting corners, the environmental protection standards, that is, the raw materials of the products not only need new materials, but also need environmentally-friendly new materials. Rubber joints are also known as flexible rubber joints, pipe shock absorbers, shock absorbers, soft joints, and the like.
 
Due to the good comprehensive performance of flexible rubber joints, it is mainly used for the lifting and conveying of raw water and sewage, water supply and cooling circulating water of thermal power plants, metallurgical industry, condensate, pipeline transportation of chemical substances in chemical industry, petrochemical Industry's cooling, dilution and flexible connections between pipelines in other industries. Because rubber has high wear resistance, it is also suitable for the transportation of granular and powdery and vapor in all industries.
 
KDF-F flanged rubber joint product installation instructions:
1. When the rubber joint is constructed, it must be in a natural state. It is strictly prohibited to install the super-displacement limit.
 
2. When the pipeline medium is resistant to acid and alkali, oil, high temperature and other special materials, the joint should be selected above the actual working pressure of the pipeline.
 
3. When the rubber joint is installed on the ground, suspended 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 pipeline from running unstable during operation.
 
4. The flange connecting the rubber joint should be a valve flange or a flange conforming to GB/T9115.1-2000.
 
5. For vertical installation and overhead installation, the corresponding fixed bracket and force bracket should be installed at both ends of the product to prevent the work from being pulled off after being pressed.
 
6. Keep away from heat sources during installation. It is forbidden to use media that does not meet the requirements of this product.
 
7. When the displacement of the pipeline is greater than or equal to the maximum compensation of the joint, the number of joints should be increased to parallel displacement. It is strictly forbidden to adjust the deviation of the pipeline so that the joint is in the limit of deflection displacement and deviation state, and can not exceed the limit ( Telescopic, displacement, deflection, etc., use the specific installation data as shown in the table below.
 
8. High-level water supply or suspended water supply. The pipeline should be fixed on the hanger and bracket, and the joint should not be subjected to the weight and axial force of the pipeline. Otherwise, the joint should be equipped with anti-pull device.
 
9. When installing the rubber joint, the screw of the bolt should extend to the outside of the joint, and the bolts on the end faces of each flange should be repeatedly tightened evenly by the method of diagonal pressure to prevent the pressure deviation.
 
10. The rubber joint should be re-pressurized and put into operation after the initial pressure (such as installation pressure test) or long-term deactivation.
 
Technical Parameters
 No.  Part  Material
1  Body (NR)、(CR)、(IIR)、(NBR)、(FKM)、(EPDM)
2  Inner & Outer Rubber (NR) (CR)(IIR) (NBR)(FKM)(EPDM)(PTFE)
3  Body Carcass  Nylon cord fabric
4  Reinforcing Ring Multi-strand coppering steel wire
5 Flange  Cast and forged carbon steel(Q235)、Stainless steel(201、304、316)、 Plastic(CPVC、PVDF、PPH、UPVC、RPP)
Item |Medol KDF-F-1 KDF-F-2 KDF-F-3
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
MpaWoring pressure 1.0(10) 1.6(16) 2.5(25)
Mpa Burst Pressure 2.0(20) 3.0(30) 4.5(45)
Kpa Vacuum 53.3(400) 86.7(650) 100(750)
℃Applicable Temperature -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
DN
Nominal Diameter
(mm)

LengthLmm

Axial displacement mm

Haorizontal isplacement mm

Angular deflection(a1+a2)°
mm

inch

Extension Compression
32 1.25 95 6 9 9 15
40 1.5 95 6 10 9 15
50 2 105 7 10 10 15
65 2.5 115 7 13 11 15
80 3 135 8 15 12 15
100 4 150 10 19 13 15
125 5 165 12 19 13 15
150 6 180 12 20 14 15
200 8 210 16 25 22 15
250 10 230 16 25 22 15
300 12 245 16 25 22 15
350 14 255 16 25 22 15
400 16 255 16 25 22 15
450 18 255 16 25 22 15
500 20 255-320 16 25 22 15
600 24 260-350 16 25 22 15
700 28 260-350 16 25 22 15
800 32 260-350 16 25 22 15
900 36 260-350 16 25 22 15
1000 40 260-350 18 26 24 15
1200 48 260-550 18 26 24 15
1400 56 350-550 20 28 26 15
1500 60 350-550 20 28 26 15
1600 64 350-550 25 35 30 10
1800 72 350-550 25 35 30 10
2000 80 350-550 25 35 30 10
2200 88 400-550 25 35 30 10
2400 96 400-550 25 35 30 10
2600 104 400-550 25 35 30 10
2800 112 400-550 25 35 30 10
3000 120 400-500 25 35 30 10

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.
 

 

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