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These materials are generally used for mechanical seals Mechanical seal is a shaft sealing device that relies on one or several pairs of end faces that slide relative to the shaft perpendicular to the shaft under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism to keep it fit and to be equipped with an auxiliary seal to achieve leakage prevention. Commonly used materials for mechanical seals : 1. Sea water; normal temperature; (dynamic) tungsten carbide, 1CR13 surfacing cobalt chromium tungsten, cast iron; (static) resin graphite, tungsten carbide, cermet; superheated water 100 degrees; (dynamic) tungsten carbide, 1CR13 cobalt surfacing Chromium tungsten, cast iron; (static) impregnated resin graphite, tungsten carbide, cermet. Purified water; normal temperature; (dynamic) 9CR18, 1CR13 surfacing cobalt chromium tungsten, cast iron; (static) impregnated resin graphite, bronze, phenolic plastic, river water (containing sediment); normal...

What factors will affect the service life of mechanical seals ? The main corrosive substance in the desulfurization circulating pump is chloride ions. Due to the strong reducibility of chloride ions, it has corrosive effect on the medium of the mechanical seal material, causing surface corrosion of the mechanical seal. The sealing material medium is limestone and gypsum slurry, the solid content (mass percentage) is about 35%; the temperature is controlled within 70℃; the pressure is less than 0.8MPA; the pH value is between 4-8; the chloride ion content is less than 0.04%. Among them, chloride ions can penetrate mechanical seals when they are severely corroded. What is more serious is that dissimilar metals work together in the medium, causing electrochemical corrosion. This leads to inadequate fixing of the ring. If the sealing surface is in friction for a long time, or the cooling water supply is quickly stopped, or impurities enter the sealing surface, it will initially cause smal...

What is cartridge seal ing? The cartridge mechanical seal is a completely enclosed sealing system with pre-assembled components. Usually, this seal type consists of glands, sleeves and other hardware that may be pre-assembled. For a more exhaustive list, please refer to the blog post about different mechanical seal types. Advantages of cartridge mechanical seal The main benefits of choosing a cassette seal for your pump seal system include: Easy installation (no expert required) Since the pre-installed seal has a fixed axial arrangement, it has higher functional safety. Eliminate measurement errors. Eliminates the possibility of axial misalignment and the resulting sealing performance problems Prevent dust from entering or damaging the sealing surface Reduce installation costs by reducing installation time = reduce downtime during maintenance Reduce the potential for pump disassembly to replace seals The cartridge unit is easy to repair Protect customer shaft/sleeve Due to the interna...

From an operational standpoint, nearly every business has some form of security needs - especially those that handle shipping, travel, and high-security information. One of the most powerful and versatile security tools to help ensure success in safety operations is the plastic security seal. Plastic security seals come in a variety of shapes and sizes; More often than not, there's a plastic security seal that is fit for your business's security plan, no matter what is being protected.  Bolt seals  supplier, Foshan Ziwei Metal Products Co.,Ltd, discusses the top 5 uses for plastic security seals down below to help identify opportunities to improve safety: 1. Shipping Containers:  Plastic security seals of many different types have been commonly used on shipping containers to secure doors and latches and indicate tampering in transport. The most common ones used in the shipping and storage of containers are plastic truck seals. These reliable and high-strength seals p...

From an operational standpoint, nearly every business has some form of security needs - especially those that handle shipping, travel, and high-security information. One of the most powerful and versatile security tools to help ensure success in safety operations is the plastic security seal. Plastic security seals come in a variety of shapes and sizes; More often than not, there's a plastic security seal that is fit for your business's security plan, no matter what is being protected.  Bolt seals  supplier, Foshan Ziwei Metal Products Co.,Ltd, discusses the top 5 uses for plastic security seals down below to help identify opportunities to improve safety: 1. Shipping Containers:  Plastic security seals of many different types have been commonly used on shipping containers to secure doors and latches and indicate tampering in transport. The most common ones used in the shipping and storage of containers are plastic truck seals. These reliable and high-strength seals p...

From an operational standpoint, nearly every business has some form of security needs - especially those that handle shipping, travel, and high-security information. One of the most powerful and versatile security tools to help ensure success in safety operations is the plastic security seal. Plastic security seals come in a variety of shapes and sizes; More often than not, there's a plastic security seal that is fit for your business's security plan, no matter what is being protected.  Bolt seals  supplier, Foshan Ziwei Metal Products Co.,Ltd, discusses the top 5 uses for plastic security seals down below to help identify opportunities to improve safety: 1. Shipping Containers:  Plastic security seals of many different types have been commonly used on shipping containers to secure doors and latches and indicate tampering in transport. The most common ones used in the shipping and storage of containers are plastic truck seals. These reliable and high-strength seals p...

Thermocouple (thermocouple) is a commonly used temperature measuring element in temperature measuring instruments. It directly measures temperature, converts the temperature signal into a thermoelectromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument (secondary instrument). The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. They are usually composed of main parts such as thermoelectrodes, insulating sleeve protection tubes and junction boxes, usually with display instruments, recording instruments and electronic adjustments. Used in conjunction with the device. The basic principle of temperature measurement is that two conductors of different components form a closed loop. When there is a temperature gradient at both ends, a current will flow through the loop. At this time, there is an electromotive force-thermoelectromotive force between the two end...