Product Description
About Piston Seals
This type piston seal is double-acting (pressure acting on both sides) seals. features a polyether-based polyurethane (EU) slide ring that is hydrolysis-resistant (moisture-resistant) and has good low-temperature flexibility. O-ring energizers provide a cost-effective sealing solution. Developed for pressures up to 250 bar (3 625 psi), suitable for light /medium duty applications. applications such as agricultural and material handling applications. They are available in metric sizes and some fit seal housings that comply with ISO 7425-1.
It could keep the contact between a piston and cylinder bore , the work life of seal is decided to different media ,various temperatures, surface finish properties and stroke speed.
Our premium grade material bring lower friction and lower leakage by managing the lubrication film thickness, higher density material offered by CNC process also ensure the lower extrusion length and longer lifetime at the same working condition .
| The Detailed Index of PU |
| Material |
Color |
Hardness |
Work Temperature |
Density |
Elongation at break |
Elastic Modulus |
Wear & Tear |
| / |
/ |
Shore A |
ºC |
g/cm³ |
% |
N/mm³ |
mm³ |
| Standard |
/ |
DIN53505 |
/ |
EN ISO 1183 |
DIN53504/53455 |
DIN53504 |
DIN ISO4649 |
| Polyurethane |
PU |
Green |
A95±2 |
-30~110 |
1.2 |
≥450 |
12 |
18 |
| High temperature hydrolyzable polyurethane |
HPU |
Red |
A95±2 |
-20~110 |
1.2 |
≥330 |
≥13 |
17 |
| Cast polyurethane |
G-PU |
Red |
A95±2 |
-30~110 |
1.2 |
≥280 |
≥11 |
25 |
| Low temperature resistant polyurethane |
T-PU |
Blue |
A95±2 |
-50~110 |
1.17 |
≥450 |
≥12 |
15 |
| Self-lubricating polyurethane |
S-PU |
Gray-Black |
A95±2 |
-20~110 |
1.23 |
400 |
17 |
21 |
| Ultra-high hardness polyurethane |
X-PU |
Dark Green |
A97±2 |
-30~110 |
1.21 |
400 |
21 |
18 |
| Ultra-high hardness High temperature hydrolyzable polyurethane |
XH-PU |
Dark Red |
A97±2 |
-20~110 |
1.22 |
350 |
25 |
20 |
| Ultra-high hardness Self-lubricating polyurethane |
XS-PU |
Gray-Black |
A97±2 |
-20~110 |
1.25 |
350 |
25 |
29 |
Company Profile
QingDao Carlock Sealing Technology Co.,Ltd
-------Ultimate Quality Products Provider
As a professional manufacturer of moldless sealing technology, we can provide a complete set of standard and non-standard high-quality sealing products and solutions for various industries.
Our products are ideal for various applications with better raw materials, better processing, higher service life, excellent tensile strength and compression set, and can withstand different pressure media and operating temperatures. Effectively reduce the replacement cycle and maintenance costs. It is widely used in many industries with high quality requirements, such as; Coal mining, oil exploitation, wind power generation, lifting machinery, die-casting equipment, etc.
CNC lathe process breaks through the limitations of traditional molding processes. We can process seals of any size, any form and any material, As a source factory with 20 years of industry experience, we have been a reliable partner for our customers in the global market from design to after-sales.
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