Spool Type Rubber Expansion Joints
Product DescriptionSpool type rubber expansion joints has the same function with mould pressing type rubber expansion joints, used in metal pipe system for vibration isolation, reducing noise and displacement compensation.
Comparing to compression molding rubber expansion joints, spool type rubber expansion joints mainly showed two merits:
1. Flexible structure, it can satisfy different installation length and different flange connection dimension requirements. Since mould pressing product is limited by mould size, the length are all the same, after many year’s technology improvement, Lanphan spool type rubber expansion joints has already met all kinds of structure, we can manufacture non-standard products of singe sphere, double sphere, triple sphere, four sphere spool type rubber expansion joints.
2. High pressure bearing effect. Since spool type rubber expansion joints are not limited by mould size, its skeleton layers is 2-4 couples more than mould pressing products, therefore, it has higher pressure bearing capacity, when come across negative pressure, we can add negative pressure resistant steel wire or made inner wall into straight tube shape to meet using requirements.
Besides above, Lanphan spool type rubber expansion joints has advantages of the following:
1. Compared with mechanical stretch and stuffing to absorb vibration, spool type rubber expansion joints occupies small space, weight light, save labor and low cost.
2. To the same limit ability, it doesn’t need increase pump and pipe diameter. The inner wall is smooth, which can reduce the flow resistance without damaging the pipeline body.
3. Good water tightness, no padded during installation.
4. Wide range of application: choosing different rubber compounding that makes it has the performance of heat-resistance, oil-resistance, anti-corrosion, aging-resistance, wear-resistance and ozone-resistance.
5. Wide range of heat-resistance: good material can make the product have a wide range of heat-resistance: -40~120°C
6. Long service life: more than 30 years used indoors, not less than 30 years used outdoors where the working condition is very harsh.
Good elasticity, having a good adaptability to compression, stretch, twist, displacement in all directions, avoiding the damage of pipeline system because of thermal expansion and foundation settlement measurement.
Reducing vibration and absorbing noise
1. Rubber material can buffer vibration and reduce mechanical vibration and absorb crush noise of the liquid.
2. Intaking it between vibrating machinery and metal pipelines, which can reduce noise of 15~25 DB.
Resistance to pressure
1.Multilayer sphere structure is especially suitable for bearing internal pressure, explosive force. Spool type rubber expansion joints won’t be out of shape when bearing outside pressure.
2.Working pressure: 0.25Mpa, 0.6Mpa, 1.0Mpa, 1.6Mpa, 2.5Mpa.
It can resile after compression load deflection, while metal expansion won’t resile after compression load deflection
Wide range of application
1. Suitable for indoor installation.
2. Suitable for outdoor installation.
3. Suitable for buried installation.
ApplicationSpool type rubber expansion joints has advantages of small external diameter tolerance, oil resistant, heat resistant, light, flexible, durable in use, it has been widely used in aviation, petroleum, chemical engineering, electric power, papermaking, medicine, food industries.
Our ServicePre-sale Service
1. According to product’s using condition, technicians will offer rationalization proposals to assist clients to select proper types;
2. Provide detailed product performance specification;
3. Provide professional quoted price;
4. Provide 24-hour technical consulting reply.
1. Begin to supervise from raw material, its qualified rate can reach to 100%;
2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
3. Provide product’s inspection record of key junctures to customers;
4. Provide production schedule photos to customers at regular intervals;
5. Package and transport products strictly accordance with export standard;
1. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
2. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
3. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
4. If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
5. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information.
FAQ1.What’s the max temperature resistance of spool type rubber expansion joints?
According to different transporting medium, we choose different rubber material, the best rubber material can resist temperature of 120℃.
2.If the medium is oil, what rubber material should I choose?
Generally the inner layer and outer layer rubber material use NR, SBR or BR; oil resistant rubber expansion joint use NBR; high temperature resistance, acid and alkali resistance rubber expansion joint use EPDM.
3.What’s the pressure of spool type rubber expansion joints?
0.25MPa, 0.6MPa, 1.0MPa, 1.6MPa, 2.5Mpa.
4.If I place a order, what specification should I provide?
You should offer us the medium, temperature, pressure, displacement amount, working condition, if special, you’d better provide us with a detailed drawing.
5.What’s the difference between spool type and mould pressing rubber expansion joints?
Spool type rubber expansion joint can satisfy different installation length and different flange connection dimension requirements, high pressure bearing capacity, long production period.
Packaging & Shipping
Advantages1.Spool type rubber expansion joints has various structure, it can satisfy different diameter, different length and different connection size requirements.
2.Good elasticity, easy to install and maintain.
3.Generate axial, later and angular displacement.
4.It can reduce structural transmit noise, strong shock absorbing ability.
5.High density inside, high pressure bearing capacity, good elastic deformation effect.
6.Smooth inwall, won’t generate eddy.
SummarySpool type flexible rubber bellows has the same function with mould pressing type flexible rubber bellows, used in metal pipe system for vibration isolation, reducing noise and displacement compensation.