Audited Supplier
PG
PU+NBR
Cylinder
Piston Seal
High Pressure
O-Ring
Standard, Nonstandard
Accetable
Red
3-7days
Piston Seal
Complete
TYS
Carton
50-360MM
Xiamen
3926901000
Product Description
The PG-type piston seal is a double-acting sealing component consisting of a preloaded elastomeric O-ring and a specially designed polyurethane sealing outer ring.
Design Description:
The PG-type piston seal is a double-acting sealing component consisting of a preloaded elastomeric O-ring and a specially designed polyurethane sealing outer ring. The two outer sealing lips serve as the main seals, effectively containing the pressure of the fluid from both sides while preventing hydraulic pressure buildup across the entire sealing surface. The support ring located in the middle of the sealing surface, along with the raised edges of the sealing lips, enhances the sealing effect by increasing the contact pressure. The advantages of the PG seal include:
Excellent dynamic and static sealing performance, ensuring reliable position retention under load.
Allows for a wide range of cylinder bore surface finishes.
Low wear rate and long service life.
Simple groove design, allowing for the use of integral pistons without the need for outer ring reset during installation.
Technical Specification:
Maximum Speed: 0.5 m/s
Outer Ring Materials and Maximum Pressure:
High-strength polyurethane elastomer: 60D, maximum pressure 35 MPa
Standard polyurethane elastomer: 93A, maximum pressure 25 MPa
Temperature Range: -35°C to +100°C
Design Description:
The PG-type piston seal is a double-acting sealing component consisting of a preloaded elastomeric O-ring and a specially designed polyurethane sealing outer ring. The two outer sealing lips serve as the main seals, effectively containing the pressure of the fluid from both sides while preventing hydraulic pressure buildup across the entire sealing surface. The support ring located in the middle of the sealing surface, along with the raised edges of the sealing lips, enhances the sealing effect by increasing the contact pressure. The advantages of the PG seal include:
Excellent dynamic and static sealing performance, ensuring reliable position retention under load.
Allows for a wide range of cylinder bore surface finishes.
Low wear rate and long service life.
Simple groove design, allowing for the use of integral pistons without the need for outer ring reset during installation.
Technical Specification:
Maximum Speed: 0.5 m/s
Outer Ring Materials and Maximum Pressure:
High-strength polyurethane elastomer: 60D, maximum pressure 35 MPa
Standard polyurethane elastomer: 93A, maximum pressure 25 MPa
Temperature Range: -35°C to +100°C
| 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 |
