Rubber pipeline fittings
Unfumigation wooden case (Out package) and Plastic film and Textile membrane(inside package) .We can make change as your request.
7-40 days according to the amount you booked
2.the member of CNEA
Rubber pipeline fittings Introduction
Rubber pipeline fittings are also called: flexible rubber expansion coupling, rubber soft connection, and soft rubber joint, rubber compensator, rubber shock hose, rubber shock reducer, is one kind of high elasticity, high air tightness, medium resistance and weather ability pipe fittings.
Rubber expansion joint consists of outer rubber, inner rubber, framework layer, and reinforcing bar and flange. Relying on rubber’s special performances as long range elasticity, air impermeability, medium, climate and radiation resistance, flexible rubber joint can reduce the vibration and noise of pipeline, and can be caused by the temperature change of heat bilges cold shrink compensation effect.
Rubber pipeline fittingClassification: 1) According to appearance: concentric with diameter rubber expansion joint, concentric reducer rubber expansion joint, eccentric reducer rubber expansion joint. 2) According to the structure: single ball flexible rubber joints, double sphere flexible rubber joint , spheres rubber joints, elbow sphere rubber joints.
3) According to the link the form: flange flexible rubber joint , threaded rubber joints.
Rubber pipeline fittings Characteristic Feature:
(1)Small volume, light in weight, very good flexibility, Convenience installation and maintenance.
Due to favorable integrated performance, they can be widely used in chemical industry, Construction, water supply, drainage, oil industry, light and heavy industry, refrigeration station, water heating system, fire fighting system, electric power system, etc.
Directions of Rubber pipeline fittings use:
When flexible rubber joint was used in high water, pipe must have fixed support or fixed bracket, or the product should be installation device to prevent pulled off. The fore of fixed support or fixed bracket must be greater than the axial force.
Rubber pipeline fittingsApplicable medium:
According to different material, acid resistance rubber joint, alkali proof rubber couplings, oil resistance rubber couplings, thermos table rubber couplings, low temperature resistance flexible rubber joint, wear resistance flexible rubber joint can be made to suitable for various kinds of medium and environment.
The difference between single sphere and double sphere Rubber pipeline fittings:
Single sphere Rubber pipeline fittings : DN25mm-DN3600mm
Due to the rubber itself characteristics, single spherical Rubber pipeline fittings is the highest utilization of rubber, most stable performance product at the moment.
On the basis of torsion displacement, transverse displacement, angular displacement, the axial compression, the axial elongation, deflection displacement, etc, single spherical rubber joint’s glue quantity is little, stability is very high, and service life is long., so it can be widely used.
Compared with single spherical rubber joint, double spherical rubber expansion joint’s advantages are its displacement is larger,instantaneous pressure on the larger deformation and so on, especially when installed in the export part of the pump. When the pump starts, instantaneous pressure is much higher than working pressure; double sphere rubber joint will reflect its advantages. Larger displacement and lower rubber aging speed of double sphere rubber joint will make better effects. However, its draft is very complex, requires high technical, so the cost is very high, thus the application number is smaller than single sphere Rubber pipeline fittings.
Rubber pipeline fittings production progress:
1. Raw material: we never use reclaimed raw rubber, rubber is imported from USA. Before used, raw material should be tested, including physical test and some chemical experiment to test the hardness and so on;
2. Rubber pretreating and ingredients;
3. Milling: first, rubber plastication, second, rubber mixing, we will add rubber compounds, like sulfurzing reagent, surfactant, softener, stabilizer, foaming agent and some special compounds, at the same time, rubber will be extruded into plates, cut, produce 45 degree angle. The plates cannot directly be used, they should be cooled about 24 hours;
4. Molding: it will cost much time;
5. Vulcanizing: the largest vulcanizing tank in Asia ø5000*15000, right time, temperature, pressure is very important;
6.Test and experiment: these tests should be done, hydraulic test, resistance to vacuum, displacement of the performance, rubber physical properties, thickness and the strength and other quality test;
7. Rubber pipeline fittings package: out package the free of fumigation wooden case; inside package: plastic film and textile membrane.
Henan Liwei Pipeline Equipment Co. Ltd (the former Zhengzhou Liwei pipeline Products Co. Ltd), located at Shangjie District, Zhengzhou city, is a manufacturer specializing in processing various steam, water, wind pipe expansion joints and compensation joints, and a main base for producing rubber , metal and non-metallic pipe joints It is also the appointed enterprise by the former chemical industry ministry, national construction ministry and general petrol chemical company, member unit of ... View detail