Mechanical seal supplier Indonesia
We manufacture and supply mechanical seals for a range of uses, such as pusher, non-pusher, cartridge, agitator, bellow, and engineered seals. Indonesia is currently undergoing impressive development. As the largest economy in Southeast Asia and the 16th largest globally, Indonesia plays a prominent role in the mining industry, renowned for its production of various minerals like coal, gold, tin, copper, and nickel. Additionally, it holds a significant position in the oil and gas sectors. Our company has been providing top-notch mechanical seals to these sectors at a reasonable cost, aiding them in expanding their operations. Our seals have been widely used by different industries across Indonesia, and we have built long-term relationships with our clients.
Mechanical seal for Centrifugal Pumps
Types of mechanical seals for centrifugal pumps
Centrifugal pumps are widely used globally due to their simplicity, detailed description, and thorough testing. There are various types of centrifugal pumps available, in this article, we will explore the advantages and disadvantages of different mechanical seals used in centrifugal pumps.
Mechanical seals play a crucial role in maintaining the integrity of the pump system by preventing fluid leakage and keeping contaminants out.
There are various designs and arrangements of mechanical seals that determine how they handle hydraulic pressure on their surfaces. The most commonly used types of seals include balanced seals, unbalanced seals, pusher seals, non-push seals, conventional seals, and cartridge seals.
1. Balanced seals
A balanced mechanical seal device is designed to evenly distribute the forces on the seal faces. This results in better lubrication and a longer lifespan for the seals, thanks to reduced end loads.
Balanced mechanical seals excel in applications with higher operating pressures, usually exceeding 200 PSIG. They are an ideal option for handling fluids with low lubricity and high volatility.
Unbalanced mechanical seals are commonly chosen as a cost-effective option compared to the more intricate balanced seals. Although they may offer better product containment due to tighter mask control, they have a significantly lower mean time between failures. It is important to note that unbalanced seals are not suitable for high-pressure or most hydrocarbon applications.
2. Pusher and non-pusher seals
Pusher seals rely on the use of one or more springs to keep the seal tightly closed. These springs can be found in either the rotating part or the stationary part of a mechanical seal. While pushrod seals can effectively seal at high pressures, they do have a drawback. The elastomer located beneath the primary sealing surface experiences wear as the surface moves along the shaft or sleeve during operation.
Non-push type seals utilize metallic or elastomeric bellows to retain the closing force of the seal. These seals are ideal for applications that involve dirt and high temperatures. However, bellows seals are only suitable for medium to low pressure situations.
Both pusher and non-pusher designs are offered in balanced and unbalanced formats.
3. Conventional mechanical seals
Conventional seals are usually more affordable and are commonly used on general service equipment. These seals require operators to have a higher level of skill to perform maintenance because they are installed as separate components.
4. Cartridge seals
Cartridge type mechanical seals combine all the seal components into a single unit. When inserting a mechanical seal into a pump, the clearances need to be adjusted. However, with a cartridge seal, there is no need to set the clearances as the unit comes pre-assembled. This eliminates the time-consuming process of assembly and spring setting on site. Cartridge seals are convenient for installation and allow for adjustments to the pump impeller without changing the seal face loading. They also accommodate for the thermal expansion of the shaft, reducing the risk of assembly errors and the time needed for seal replacements.
In addition to these factors, it is important to take into account several other parameters when selecting a seal. These parameters include the type of fluid that needs to be pumped, the pressure of the pump fluid, temperature considerations, and operator safety issues.
