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Introduction to Typical Engineering Machinery Seals

Introduction to Typical Engineering Machinery Seals

2019-10-29

1SPGW

SPGW seal, applied to piston two-way seal with high temperature resistance, strong extrusion resistance, low friction coefficient, small installation groove and small static leakage.It is an ideal engineering mechanical seal. The main disadvantage is the need for special tooling for installation.


2SPGO

SPGO seal, applied to piston two-way seal with high temperature resistance, strong extrusion resistance, very low friction coefficient. It can be applied to high-speed sports cylinders, small installation grooves, and widely used in engineering machinery. The main disadvantage is that special tools are required for installation, and the amount of static leakage is large.


3RSJ

RSJ seal, applied to the piston rod one-way seal with high temperature resistance, strong extrusion resistance, low friction coefficient, small installation groove, generally used as buffer seal, widely used in engineering machinery hydraulic cylinders. The main disadvantage of this type of seal is that if it works alone, there will be a large amount of leakage, so generally only a buffer seal is used.

DMS Seal Manufacturer-Introduction To Typical Engineering Machinery Seals, Dms Seals Technology Co

4KZT

KZT seal, also known as anti-fouling ring, is installed at the outermost end of the piston seal. The main function is to prevent the stain in the hydraulic oil from entering the main seal position of the piston, causing damage to the main seal and secondly preventing gas enter the main seal and create a gas explosion or Diesel effect on the main seal. Commonly used in construction machinery and metallurgicalmachinery cylinders.


5WR

WR, guide ring is installed at the two ends of the piston seal or the front end of the piston rod seal. The main function is to guide the movement of the piston and the piston rod to prevent the metal parts from directly contacting the strain, avoid eccentric piston rod and piston, keep reasonable extrusion clearance for seal, isolate the air explosion on seal damage and other protection. The main advantage of this kind of guide ring is that it has large bearing capacity, but the disadvantages are: the friction coefficient is much larger than that of the Teflon-filled guide tape; it is easy to age and become brittle and crack at high temperature.


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