Things to know about rubber bellow mechanical seal
Rubber Bellow Mechanical Seal with rubber below is one of the popularly used industrial components. They are mainly used for water, oils, and light duties applications. This seal type is single-acting, and it is not dependent on the direction of rotation.
What is so unique in this Mechanical Seal? Well, it has a unique rubber bellow as an inferior seal. It has self-aligning features, due to that it compensates the abnormal shaft and runs out, which results in a long service life.
Due to its rubber bellow, it protects the sleeve or shaft from fretting.
Where are they being used the most? Well, typically, the seals are used in wastewater treatment plants for sewage applications.
Since they have quite a compact design, the mounting is very easy. The seal has a unique rubber below the secondary seal also. It provides a high degree of axial flexibility and protects the shaft/ sleeve from fretting.
A wide range of applications use these seals because they meet customer requirements. The parts of these seals are:
- Rotary face
- Stationary face
- Elastomer
- Bellow
- Spring
Various materials are used for making seal ring faces, seat faces, elastomers, etc. The choice of material depends on its suitability.
Types of Rubber Bellow Mechanical Seal
LPS-141-U
LPS-141-U series is a single coil spring unbalanced Mechanical Seal, that is developed with rubber bellow for oil, water, and light duties applications. The seal is single-acting. It is independent of the direction of rotation.
LPS-001-U & LSP-012-U
LPS-001-U & LSP-012-U series are developed with Rubber Bellow for oils, water, and light duties applications. These Rubber Bellow seals are also single-acting and independent of the direction of rotation.
Characteristics of Rubber Bellow Mechanical Seal
According to experts, Rubber bellow mechanical seals are unbalanced. They are single-acting with optimum strength, and they offer robustness. Spring design seals are used for the dual direction of shaft rotation.
Bellow design seals are used for the elimination of folds, and pressure support.
These seals are independent of the direction of rotation, and they offer torque transmission by Elastomer bellow.
High-quality Rubber Bellow Mechanical Seal is useful in a wide range of applications.
Advantages of using Rubber Bellow Mechanical Seal
- They are low-cost seals.
- These seals are easy to install. You don’t need to do any measurements to make or set screws to tighten the shaft.
- The seals are highly available. One can purchase the seals from a variety of manufacturers and distributors and bearing houses. The present seal will be referenced by distributors using replacement charts to offer an equivalent design.
- No sleeve fretting. When the seal is installed properly, it cannot fret or damage a sleeve or shaft. It is because there is no relative movement between the shaft or sleeve and the rubber boot.
Also Read: Best Mechanical Seals Manufacturers in India
Applications of Rubber Bellow Mechanical Seal
- Wastewater and submersible pumps
- Sewage applications
- Submersible Pumps
- Hot & cold-water pumps
- Fuel injection pumps
Conclusion
Rubber Bellow Mechanical Seals are mainly used in wastewater treatment plants for various applications. They can be mounted effortlessly because of their condensed design.