GRS
PTFE+NBR/FKM
Cylinder
Rotary Seal
Wear
O-Ring
Standard, Nonstandard
3-7days
Brown
TYS
Carton
6-280mm
Xiamen
3926901000
Product Description
The GRS piston seal is a type of sealing component used in hydraulic and pneumatic systems. It is specifically designed for reciprocating motion and provides effective sealing performance.
Design Description:
The GRS piston seal consists of a filled polytetrafluoroethylene (F-PTFE) sealing ring and an O-ring. It offers the following advantages:
• Very low friction resistance
• Simple and compact groove design with lubrication cavity
• No crawling or sticking during startup
• Excellent wear resistance and dimensional stability
Technical Specification:
Pressure: 30 MPa
Speed: 1 m/s
Temperature: -30°C to +200°C (dependent on O-ring material)
Medium: Mineral hydraulic oil, fire-resistant hydraulic oil, environmentally friendly hydraulic oil, water, air, and other Medium (dependent on O-ring material)
Materials:
Sealing Ring: Filled polytetrafluoroethylene (F-PTFE)
O-ring: Nitrile rubber (NBR) or Fluoroelastomer (FKM)







Design Description:
The GRS piston seal consists of a filled polytetrafluoroethylene (F-PTFE) sealing ring and an O-ring. It offers the following advantages:
• Very low friction resistance
• Simple and compact groove design with lubrication cavity
• No crawling or sticking during startup
• Excellent wear resistance and dimensional stability
Technical Specification:
Pressure: 30 MPa
Speed: 1 m/s
Temperature: -30°C to +200°C (dependent on O-ring material)
Medium: Mineral hydraulic oil, fire-resistant hydraulic oil, environmentally friendly hydraulic oil, water, air, and other Medium (dependent on O-ring material)
Materials:
Sealing Ring: Filled polytetrafluoroethylene (F-PTFE)
O-ring: Nitrile rubber (NBR) or Fluoroelastomer (FKM)
Code | Fucntion | Limited Condition | ||
Pressure (MPa) | Speed (m/s) | Temp. (ºC) | ||
SPGO | Piston Seals (Double Acting) | 40 | 5 | -45ºC +200ºC |
SPG | Piston Seals (Double Acting) | 35 | 1.5 | -30ºC +200ºC |
SPGW | Piston Seals (Double Acting) | 50 | 1.5 | -45ºC +200ºC |
GSD | Piston Seals (Single Acting) | 40 | 5 | -30ºC +200ºC |
DAQ | Piston Seals (Double Acting) | 40 | 2 | -30ºC +200ºC |
AQ5 | Piston Seals (Double Acting) | 40 | 2 | -30ºC +200ºC |
DAS | Piston Seals (Double Acting) | 40 | 0.5 | -30ºC +100ºC |
PG | Piston Seals (Double Acting) | 35 | 0.5 | -30ºC +100ºC |
MPA | Rod Seals (Single Acting) | 40 | 0.5 | -45ºC +120ºC |
MPB | Rod Seals (Single Acting) | 40 | 0.5 | -45ºC +120ºC |
MPR | Rod Seals (Single Acting) | 40 | 0.5 | -45ºC +120ºC |
MPS | Rod Seals (Single Acting) | 40 | 0.5 | -45ºC +120ºC |
HBY | Rod Seals (Single Acting) | 40 | 0.5 | -30ºC +110ºC |
HBTS | Rod Seals (Single Acting) | 40 | 3 | -30ºC +110ºC |
GSJ | Rod Seals (Single Acting) | 40 | 3 | -30ºC +110ºC |
GSI | Rod Seals (Double Acting) | 40 | 5 | -45ºC +200ºC |
DH-5 | Dust Sels | 2 | -40ºC +110ºC | |
DHS | Dust Sels | 2 | -40ºC +110ºC | |
GSZ5 | Dust Sels | 5 | -40ºC +110ºC | |
DKBI | Dust Sels | 3 | -30ºC +100ºC | |
DKBZ | Dust Sels | 3 | -30ºC +100ºC | |
RVA | Rod Var i Seals | 45 | 15 | -70ºC +260ºC |
GRS | Rotary Rod Seals | 30 | 1 | -30ºC +200ºC |
ROI | Rotary Rod Seals | 28 | 0.3 | -30ºC +100ºC |
BRT | Rod Seal Backup rings | 1 | -45ºC +200ºC | |
N4W | Piston Backup rings | 1 | -45ºC +120ºC | |
KZT | Dust Rings | 5 | -45ºC +200ºC | |
WR | Wear Rings | 1 | -45ºC +120ºC | |
RYT | Guide Tape | 5 | -45ºC +200ºC |
Sealing Component Storage Guidelines and Recommend-ed Shelf Life | |
Storage Recommendations: | |
Stock Control | Follow the First- In-First-Out (FIFO) princip le |
Optimal Temp. | Seals should be kept aw ay from heat sources like direct sunlight and heat-emitting objects . The maximum storage temperature is +32°C. Low temperatures w on't cause permanent damage to the seals but can make them brittle, leading to potential breakage if mishandled. Generally , the storage temperature for seals should not go below +10°C, and they should be brought to room temperature before installation. |
Avoid strong light | Surfaces should be shielded from direct sunlight and artificial light sources to prevent exposure to ultraviolet radiation. |
Moisture control | Special care should be taken during storage, and the ambient humidity should not exceed 65% . Some specific polyurethane seals that are sensitive to moisture should be stored in sealed containers |
Keep away from oxygen and ozone | Ozone and oxygen are harmful to seals . Seals should be stored in sealed containers . Any equipment that generates sparks should be kept aw ay from the storage containers . |
Keep away from | For seals to have a longer storage life, they should be kept aw ay from contaminants . The w arehouse should be kept clean. |
Avoid distortion | Large seals should be stored flat instead of hanging, as prolonged hanging can cause distortion. Seals should not be placed on hooks , nails , or metal plates . |
Recommended Shelf Life : | |
Compounds | Shelf Life |
FEPM | 7 Years |
EP,EPR,EPDM | 7 Years |
FKM | 7 Years |
NBR,HNBR,XNBR | 7 Years |
AU or EU | 10 Years |
TPCE | 10 Years |
PTFE | Unlimited |







