DAS
POM+NBR
Cylinder
Piston Seal
High Pressure
O-Ring
Standard, Nonstandard
Accetable
Black
3-7days
Piston Seal
Complete
TYS
Carton
50-360MM
Xiamen
3926901000
Product Description
DAS compact seals are used as piston seals for double-acting cylinders.
It has an NBR ring with 3 sealing lips in the middle; Elastomer has an good sealing effect in both dynamic and static conditions.2 polyester elastomer back up rings to reduce the allowable clearance on both sides;back up ring prevent the elastomer be extruded into the sealing gap. 2 POM ring as a guide.the role of the guide ring is to help the piston in the cylinder guide and absorb the radial force. it mainly used in hydraulic cylinders as a piston seal. As shown in the design, the sealing operation is performed by an NBR ring.
Design Description:
The DAS combination seal is a double-acting sealing and guiding component consisting of an elastomeric sealing ring, two backup rings, and two guide rings. The sealing ring provides excellent sealing performance in both static and dynamic conditions, while the backup rings prevent extrusion of the rubber sealing ring. The guide rings serve as effective support elements, and the unique structural design of the elastomeric component ensures distortion-free installation within the groove. The DAS seal is a compact combination of sealing and guiding, suitable for installation in open or closed grooves, enabling applications in extremely tight spaces.
Technical Specification:
Pressure: 40 MPa
Speed: 0.5 m/s
Temperature: -30°C to +100°C
Medium: Compatible with common hydraulic oils.
Materials:
Sealing Ring: Nitrile rubber (NBR)
Backup Rings: High-strength polyester elastomer
Guide Rings: Modified polyoxymethylene (POM)







It has an NBR ring with 3 sealing lips in the middle; Elastomer has an good sealing effect in both dynamic and static conditions.2 polyester elastomer back up rings to reduce the allowable clearance on both sides;back up ring prevent the elastomer be extruded into the sealing gap. 2 POM ring as a guide.the role of the guide ring is to help the piston in the cylinder guide and absorb the radial force. it mainly used in hydraulic cylinders as a piston seal. As shown in the design, the sealing operation is performed by an NBR ring.
Design Description:
The DAS combination seal is a double-acting sealing and guiding component consisting of an elastomeric sealing ring, two backup rings, and two guide rings. The sealing ring provides excellent sealing performance in both static and dynamic conditions, while the backup rings prevent extrusion of the rubber sealing ring. The guide rings serve as effective support elements, and the unique structural design of the elastomeric component ensures distortion-free installation within the groove. The DAS seal is a compact combination of sealing and guiding, suitable for installation in open or closed grooves, enabling applications in extremely tight spaces.
Technical Specification:
Pressure: 40 MPa
Speed: 0.5 m/s
Temperature: -30°C to +100°C
Medium: Compatible with common hydraulic oils.
Materials:
Sealing Ring: Nitrile rubber (NBR)
Backup Rings: High-strength polyester elastomer
Guide Rings: Modified polyoxymethylene (POM)
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 |







