155-9093 1559093 210mm outer diameter piston wear-resistant ring of 385B 374F L 385C 374D L

1. Quick Details of  seal 155-9093:

2.  155-9093  picture:

3. Service part number :

4. FAQ

Q: Can this piston seal ring adapt to hydraulic cylinders of all construction equipment?
A: It is specially matched for grader lift cylinders. It cannot be installed on excavator stick cylinders or wheel loader tilt cylinders.

Q: What kinds of working environments fit this sealing assembly?
A: It performs steadily during highway paving and ground leveling work, adapting to frequent lifting and lowering movements of grader blades.

Q: What temperature range can this piston seal ring withstand during continuous operation?
A: It maintains reliable sealing performance within -51°C ~ 131°C under long-term outdoor road construction conditions.

Q: What installation reminders should maintenance staff follow?
A: Do not stretch or distort the flat seal ring, and fully remove sediment and metal particles inside the piston groove before assembly.

Q: What core task does this piston seal ring complete inside the lift cylinder?
A: It isolates high-pressure and low-pressure oil chambers and stops cross-flow of hydraulic oil on two sides of the piston assembly.

Q: What advantages does carbon fiber filled PTFE have compared with ordinary sealing materials?
A: It owns low friction coefficient and great anti-extrusion performance, reducing wear under frequent reciprocating piston motion.

Q: What core function does this piston seal ring perform inside the cylinder?
A: It separates high-pressure and low-pressure oil chambers inside the cylinder and prevents hydraulic fluid from flowing across both sides of the piston.

Q: What engineering projects commonly require replacement of this piston seal ring?
A: It serves routine maintenance of hydraulic cylinder piston sealing assemblies on medium crawler excavators, widely used in urban infrastructure, highway subgrade construction, small quarry loading and residential foundation excavation projects.

5. Exhibition and Wearhous

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