This article provides some information on pump mechanical seals

Pump Mechanical Seals

This article provides some information on pump mechanical seals. This includes less leakage and a more positive seal during shutdown. It also covers vapor pressure margin and secondary seals. Using a video to guide you through this process is a helpful resource. Zhejiang Tianying Mechanical Seals Co., Ltd offers videos that explain pump seal replacement.

Less leakage

If you're concerned about pump leakage, it's important to check the seals. If they're not functioning properly, you'll experience more frequent leaks. Mechanical seals should be replaced as soon as they show signs of wear and tear. The problem can be caused by many factors, including excessive vibration, a worn O-ring, or a design flaw. Fortunately, mechanical seal repair is relatively easy. Proper repair will avoid environmental contamination and help optimize pump efficiency.

More positive sealing during shutdown

There are several ways to make your pump's seals more positive during shutdown. One way is to lubricate them. Lubrication will decrease the friction and heat generated during shutdown. Usually, you will use seal oil to lubricate the seal. The oil is injected at a pressure that is about 40 psi higher than the gas pressure within the seal zone.

Vapor pressure margin

When operating a pump, it is critical to properly evaluate the vapor pressure margin on the pump mechanical seal. Because the mechanical seal is immersed in the pumped fluid, a low vapor pressure margin can cause the seal to run dry. In order to prevent this from happening, pumps use a dual-pressurized seal, which maintains a stable barrier fluid between the seal faces to prevent vaporization.

Secondary seals

Secondary seals for pump mechanical seals provide the secondary face of the seal with a physical barrier, while preventing the primary face from rotating. Secondary seals are made of various materials, such as elastomeric bellows and static sealing gaskets, and are strategically located on the seal assembly.

Misaligned pipes

The misalignment of pipes in a pump's mechanical seal can result in leakage or premature failure of the pump. It can also lead to damage to the pumps casing and flanges. Regardless of the cause, it is important to avoid misalignment as much as possible to avoid costly failures.

Wearing parts

The mechanical seal of a pump must be maintained to operate properly. This is a difficult task as there are many factors that can influence its performance. Improper maintenance can cause the seal to run dry for too long before a replacement fluid is introduced. This results in higher stress levels, more heat, and abrasive deposits entering the sealing interface. Fortunately, there are several ways to avoid these problems.

TYS108 Series mechanical seal