What Is a Rubber Elbow?
The 90 ° rubber elbow is composed of a fabric-reinforced rubber part and a flat union, a loose metal flange or a threaded pipe flange. It is an elbow used for pipeline vibration isolation and noise reduction and compensation for displacement.
90 ° rubber elbow
Right!
The 90 ° rubber elbow is composed of a fabric-reinforced rubber part and a flat union, a loose metal flange or a threaded pipe flange. It is an elbow used for pipeline vibration isolation and noise reduction and compensation for displacement.
The 90 ° rubber elbow is composed of a fabric-reinforced rubber part and a flat union, a loose metal flange or a threaded pipe flange. It is an elbow used for pipeline vibration isolation and noise reduction and compensation for displacement.
90 ° rubber elbow is divided according to structure
Elbow sphere, 90 ° elbow.
90 ° rubber elbow is divided according to the connection form
Flange connection, thread connection, threaded pipe flange connection. 90 ° rubber elbow
90 ° rubber elbow according to working pressure
Five grades: 0.25MPa, 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa.
90 ° rubber elbow performance characteristics:
Small size, light weight, good flexibility, convenient installation and maintenance.
It can generate lateral, axial, and angular displacement during installation, and is not restricted by the non-concentricity of the pipeline and the non-parallel flanges.
It can reduce the structural transmission noise and strong vibration absorption ability when working.
90 ° rubber elbow use range:
Due to its good comprehensive performance, the flexible rubber elbow is widely used in chemical engineering, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, power and other basic projects.
90 ° rubber elbow instructions:
When rubber elbows are used for high-level water supply, the pipeline must have a fixed support or a fixed bracket, otherwise the product should be installed with anti-pulling device. The force of the fixed support or bracket must be greater than the axial force, otherwise an anti-pulling device should also be installed.
90 ° rubber elbow suitable medium:
According to different materials, it can be made into various varieties such as acid resistance, alkali resistance, corrosion resistance, oil resistance, heat resistance, etc., which is suitable for various media and environments.
90 ° rubber elbow installation method:
When the rubber elbow is installed, it is strictly forbidden to install it beyond the limit of displacement.
The mounting bolts should be symmetrical and tightened gradually to prevent local leakage.
For working pressures above 3.1.6 MPa, the mounting bolts must have elastic pressure pads to prevent the bolts from loosening during work.
When installed vertically, the two ends of the joint pipe should be supported by vertical forces. Anti-pullout devices can be adopted to prevent the work from being pulled under pressure.
The installation area of the rubber elbow should be far away from the heat source and ozone area. It is strictly forbidden to expose to strong radiation and use media that does not meet the requirements of this product.
It is strictly forbidden to sharpen the rubber elbow to scratch the surface and sealing surface during transportation.
90 ° rubber elbow connection
Flange connection.
90 ° rubber elbow rubber ball material
The rubber elbow sphere is composed of a rubber tube with an inner rubber layer, a reinforced layer with multiple scraped nylon cord fabrics, and an outer rubber layer. The rubber materials used are different according to different media, including natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, neoprene rubber, silicone rubber, fluorine rubber and so on. With heat resistance, acid resistance, alkali resistance, corrosion resistance, wear resistance, oil resistance and other functions.
90 ° rubber elbow technical performance
Item model | KXT-I | KXT-II | KXT-III |
Working pressure MPa | 1.0 | 1.6 | 2.5 |
Bursting pressure MPa | 2 | 3-32 | 4.5 |
Vacuum degree KPa (mmHg) | 53.3 (400) | 86.7 (650) | 100 (750) |
90 ° rubber elbow nominal diameter, length, displacement value, and flange data sheet
Nominal diameter DN | length L | bolt Number of holes | Bolt hole diameter | Bolt hole center Circle diameter D1 | Axial compression | Axial elongation | Radial Displacement | Deflection angle (A1 + a2) ° |
50 | 150 | 4 | 18 | 125 | 20 | 20 | 16 | 20 ° |
65 | 150 | 4 | 18 | 145 | 20 | 20 | 16 | 20 ° |
80 | 160 | 8 | 18 | 160 | 20 | 20 | 16 | 20 ° |
100 | 120 | 8 | 18 | 180 | 20 | 20 | 16 | 20 ° |
125 | 200 | 8 | 18 | 210 | 20 | 20 | 16 | 20 ° |
150 | 230 | 8 | twenty two | 240 | 20 | 20 | 16 | 20 ° |
200 | 265 | 8 | twenty two | 295 | 20 | 20 | 16 | 20 ° |
250 | 280 | 12 | twenty two | 350 | 20 | 20 | 16 | 20 ° |
300 | 320 | 12 | twenty two | 400 | 20 | 20 | 16 | 20 ° |
350 | 360 | 16 | twenty two | 460 | 20 | 20 | 16 | 20 ° |
400 | 380 | 16 | 26 | 515 | 20 | 20 | 16 | 20 ° |
Note: 1. Special requirements can be customized by letter or map. The flange is in accordance with the "National Atlas of General Water Supply and Drainage Standards."
2. Use DN200 or higher products for suspended water supply. The pipeline must have a fixed support or fixed bracket, otherwise the product should be installed with anti-pulling device.
3. Using rubber elbows, the corresponding flange should be a valve flange or a flange that meets the GB / T9115--2000 standard.
