Cartridge mechanical seal

Cartridge mechanical seal Cartridge mechanical seal is a combination of 7 main parts such as moving ring, static ring, spring, auxiliary sealing ring, shaft sleeve, gland static sealing washer, etc. It can also be called a cartridge. Type mechanical seal (Cartridge Sea1). Sometimes also called cartridge seal. Cartridge mechanical seal has been assembled into a collective. Therefore, the installation on the body is more convenient, fast, and the sealing is reliable, which is welcomed by users at home and abroad. It is the development direction of domestic mechanical seals in the future. Cartridge mechanical seals are generally balanced mechanical seals, as shown in Figure 1. AIG318 type Cartridge type mechanical seal, its structural feature is that all parts are combined into one, the spring does not contact with the material, the balance type, the internal flow, the positioning block can adjust the spring compression. Considering that when the dynamic/static ring is worn, it can be more easily compensated, It is designed with a moving ring seal. The shaft sleeve and the gland are indispensable parts of the cartridge seal, through which all the parts of the seal can be combined. The gland can also be connected to the body. When the temperature of the material is too high or too low , When flushing is required, the gland can be processed into a flushing hole to meet the needs of the process. The set screw is also very important and is the main part to overcome the friction force of the dynamic and static rings. The head of the set screw of AIG3l8 is engraved with a spiral groove, which can Prevent the screw and the shaft from slipping and loosening. 318i is a waist-shaped static ring gland. There are 2 gland bolts, which can be directly replaced. The original sealing packing is used for sealing. And there is no need to change the original equipment. When the mechanical seal needs to be flushed, 318A glands with flushing holes and 4 gland bolts can be used, and meet the requirements of API standards. The cartridge mechanical seal can ensure the accuracy of the sealing working state. Easy and fast installation, eliminating human installation errors Type characteristics: The axial dimension of the machine seal is short and the structure is compact, especially suitable for occasions where the radial dimension is not required to be compact, but the axial dimension position is limited, and the inner and outer end faces adopt a balanced structure. Durable and stable. Scope of application: Pressure: ≤ 2Mpa Temperature: 0-250°C Speed: 0-100rmp Medium: Strong corrosiveness, acid, alkali, salt and organic solvent Shaft diameter: Ф30-160