A mechanical seal Basics: 1, the basic concept of the mechanical seal: mechanical seal means comprises at least one lower end face perpendicular to the axis of rotation under fluid pressure and the force of the correction means (or magnetic), and the auxiliary sealing action with means for maintaining fluid leakage paste combined to prevent relative sliding. Secondary seal ring is called compensation bellows mechanical seal is a metal bellows. 2, mechanical seal components: mainly the following four parts. a primary seal: ring and stationary ring. b auxiliary seals: seals. c pressing member: spring, pushing the ring. d transmission parts: Kei seat shells and two keys or set screws, mechanical seal should be noted that the issue of work: 1, a Notes installation, the installation should be very careful to avoid bias arising from the installation of the gland (1) shall be After coupling alignment, the bolts should be evenly supported to prevent deflection of the end face of the gland, with a feeler points, the error is less than 0.05 mm. (2) Check the gland and shaft or sleeve OD with the gap (ie, concentricity), four weeks should be uniform, with a feeler points tolerance is not greater than 0.01 mm. b, according to the provisions of the spring compression, does not allow too small or too large phenomenon requires error 2.00 mm. Face pressure to increase over the General Assembly, and the other fast face wear. Too small will result in insufficient pressure ratio and can not play a seal. c, ring beard after installation to ensure that the shaft can move flexibly, the ring is pressed against the spring should be able to automatically bounce back. 2, precautions when removing a, at the time to carefully dismantle the mechanical seal is strictly forbidden to use hand hammer and flat shovel to avoid damaging the sealing element. Do one pair of wire hook, stretching in the direction of the drive for self-financing gap at the seat, pull out the sealing device. If less than the time scale demolition, should be cleaned before demolition. b, if the pump mechanical seal both ends, in the assembly, disassembly process to take care of each other, to prevent a loss. c, running through the mechanical seal, where a loose seal gland from moving the case, then the static ring parts must be replaced, should continue to be used to re-tighten. Because after the sample Ying move, friction may change from the original running track, sealing contact surfaces easily destroyed. [Company Name] Tengzhou Machine Co., Ltd. Heng Noda [Sales Manager] Mr. Sun [Hotline] 0632-5168661 [Business Phone] 13356372661 [Main products] small hydraulic machine hydraulic machine of a single column hydraulic press machine hydraulic machine hydraulic gantry single column hydraulic press poster Universal hydraulic arm small hydraulic machine hydraulic machine manufacturers [corporate website] http://www.youyaji1.com http://www.hengnuoda.com/ [Address] Economic Development Zone Industrial Park South Tengzhou