Common Features Across These Seals
SPG,SPGO,and SPGA are compact double-acting piston seals for hydraulic cylinders. These seals provide reliable performance in excavators,heavy machinery,and industrial systems.They combine a slide ring with an elastomeric energizer for low friction and high-pressure resistance.

SPG Seal Details
Double acting glide piston seal.Suited for one piece pistons.PTFE seal face with rubber energiser.Dual face materials gives pressure capability options.The SPG piston seal consists of a PTFE slide ring and a square NBR or FKM rubber energizer.Pressure range up to 310bar(4496psi).SPG is standard double acting sealing,a wide range of applications.Friction resistance is very low,no crawling phenomenon,strong wear resistance,and saving groove space.
SPGO Seal Details
SPGO is a low friction piston seal consisting of PTFE+Bronze seal ring and rubber o-ring used for two-way piston seal of Hydraulic cylinder.Spgo seal,also known as glyd ring,is a low friction piston seal,which improves the perfect combination of sealing performance and service life.SPGO is a standard combination seal for a wide range of appliC.A.Tions.It has the same performance as SPG and uses JIS standard O-ring,saving a lot of.For reciprocated hydraulic system,allow large extrusion gap,has wide application,high static and dynamic sealing performance.The application and performance are excellent in hydraulic cylinders.
SPGA Seal Details
Main Differences
|
Seal Type |
Primary Material |
Key Design Feature |
Pressure Capability |
Best For |
|
SPG |
PTFE slide ring + NBR/FKM energizer |
Compact, one-piece piston suitable |
Up to 310 bar |
General hydraulic cylinders, wide applications |
|
SPGO |
PTFE+Bronze ring + rubber O-ring |
Standard groove, low friction |
High pressure |
Two-way sealing, excavators, heavy duty |
|
SPGA |
Nylon face + rubber energizer |
Step-cut joint, port-passing capable |
Double-acting |
Caterpillar equipment, easy installation over ports |
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