Best cartridge mechanical seal manufacturer

Best grundfos pump seal factory: What is an O-ring? O-ring is an annular ring designed to prevent the passage of liquids or gases. It is one of the simplest precision mechanical parts ever produced and continues to be one of the most widely used sealing products. O-rings can be made of plastic or metal, but as far as our blog is concerned, we will only focus on rubber (or elastomer) O-ring design. O-rings (also called “torus”) work in concert with the glands in which they are installed. The gland is usually cut from the metal hardware and sealed with the O-ring. The gland and O-ring must be designed together to ensure optimal performance. See even more info on cartridge type mechanical seal.

In China, many factories use viking gear pumps, especially viking gear pump are widely used in resin industry, Paint industry, Lubricating oil industry, High viscosity working condition, so viking pump seal is really a nice demand in market. not only in China, but also in other oversea countries. In China market, the most popular viking gear pump item include: K227A(8088730103), LL724, LQ224A,LQ724A(8088840089), QS4124A SER. 12133804, even some agent of viking pump buy cartridge mechanical seal from our factory.

We use carbon and SIC as the raw materials for manufacturing the rotary and stationary seal parts. Due to the characteristics of the SIC, the product is endowed with the performance of stable chemical properties, low thermal expansion coefficient and good wear resistance. Besides that, the product is equipped with strong cast iron which gives it long service life. As for the secondary seal, we use EPDM to help the product gain the advantages of weather resistance, ozone resistance, heat resistance, acid and alkali resistance.

Mechanical seals are usually made by moving rings, stationary rings, compression elements and sealing elements. The operating principle is that the movable ring rotates together with the pump shaft, and the movable ring and the static ring are tightly bonded to form a sealing surface to avoid leakage of the medium. Considering the actual situation that mechanical seal running with other components of the pump together, Lepu Seal will perform strict tests for ensuring the function and technical requirements of the mechanical seals so that they can play an effective role in maximizing the value. They can be used in many applications. For example, our mechanical seals can be widely used in the field of chemistry, the oil and gas industry, the pulp and paper industry and the marine industry. What’s more, in the petrochemical and pharmaceutical industries, customers also can find the usage of our mechanical seals.

We provide CAD drawings for customers so that they can see the inner parts and external design of the seals. Or if customers have their design concept or already get their product drawings, it is also practicable in Lepu Seal. Sample production and delivery: After getting confirmation from customers, Lepu Seal will make the exact sample based on the drawing. Having finished the sample, we will carry out strict QC procedure to test the sample and then deliver it.

For better satisfying the needs of customers, the product can be provided with different shaft sizes ranging from 24mm to 100mm. In Lepu Seal, Alfa Laval mechanical seal LPSRU3 is a professionally designed mechanical seal replacement for Alfa Laval pump SRU3. Super light screws are designed on the seal ring, which both guarantees the easy operation and strong structure. Each product is designed with precise dimension ranging from 20mm to 45mm, which can satisfy the different needs of customers. Find extra information at

When you are under pressure your concentration will be affected and most of the time the results will not be pleasing. The higher the pressure the lower the results of whatever works you are supposed to do. The same rule applies even to the shaft seals; when the fluid that is to be sealed is pumped with the pressure the seal lip will be directly affected. The expected high pressure in the seal lip will lead to a reduction of the rotational speed and the velocity in the circumference. The reduced speed means that the friction might be too high that can cause wear and tear to the shaft seal. Metric shaft seals will integrate the shortened seal lip that will reduce both the pressure and flexibility in the contact zones. The reduction of the rotational speed caused by these high pressures also leads to over temperature, and as a result, the seal experiences lack lubrication that is needed for its operations.

Here in Lepu john crane mechanical seal suppliers and john crane mechanical seals distributors, we are available in the widest array of materials options including high-performance silicone carbides. Until now, we have several types of products including type 1, 2, 21, and 502. Each of them plays a unique role in different industries. For example, John Crane type 1 is normally used by the pulp, paper making, petrochemical, food processing, waste water treatment, and chemical processing industries. John crane type 502 is popular in the industries of pump, mixer, blender, agitator, air compressor, blower, fan, and other rotary shaft equipment.