Product Description:
Parker 2-series O-rings are precision-crafted elastomeric seals that conform to the AS568A dimensional standards. This series includes dash numbers ranging from 2-102 up to 2-178, all maintaining a consistent cross-section size of 2.62 mm (0.103"). The inside diameters vary significantly, starting at 1.24 mm for the 2-102 model and extending to 247.32 mm for the 2-178 model. This wide range accommodates various gland sizes, from small instrumentation components to larger industrial housings.
These O-rings come in three main types of elastomer materials designed to meet diverse fluid compatibility and temperature demands. The first type is NBR (Nitrile), which is suitable for general-purpose applications involving petroleum and hydraulic fluids. The second type, FKM (Fluoroelastomer), is engineered to withstand aggressive chemicals and higher temperature conditions. Finally, VMQ (Silicone) O-rings provide excellent performance across extreme temperature ranges and are ideal for applications requiring high purity.
Each elastomer compound is formulated to deliver dependable resistance against compression set and to maintain sealing effectiveness in both static and dynamic gland environments. This ensures that Parker 2-series O-rings provide reliable sealing solutions across a broad range of industrial and technical applications.
Features:
The AS568A series ensures dimensional compliance by being molded to standard dash-number tolerances. This design guarantees drop-in interchangeability, making it easy to replace or substitute components without compatibility issues.
One notable feature of the 2-102 to 2-178 series is the uniform cross-section size of 2.62 mm. Every item in this range maintains a consistent cord diameter of 2.62 ± 0.08 mm, which simplifies the design of glands and streamlines spare parts management.
Regarding material options, the NBR (Nitrile) compound is a general-purpose choice known for its excellent resistance to petroleum oils, fuels, and hydraulic fluids. It typically operates effectively within a temperature range of approximately -34°C to +121°C (-30°F to +250°F).
The FKM (Fluoroelastomer) variety offers high chemical resistance, making it suitable for exposure to aggressive chemicals, acids, and fuels. Its standard service temperature range is about -26°C to +204°C (-15°F to +400°F). Additionally, special low-temperature compounds can extend this range down to -46°C.
For applications requiring extreme temperature flexibility, the VMQ (Silicone) compound is ideal. It performs well across a broad service window from approximately -54°C to +232°C (-65°F to +450°F), and is particularly suited for high-purity and medical uses.
Precision molded compounds are offered in standard Parker formulations, such as N0674-70, V0747-75, and S0604-70. These formulations ensure consistent hardness and reliable compression set characteristics for various applications.
The series provides broad size coverage, featuring 77 dash numbers ranging from 2-102 to 2-178. This corresponds to inner diameters from as small as 1.24 mm up to 247.32 mm, accommodating a wide spectrum of sealing needs.
Technical Parameters:
| Hardness (Shore A) |
70 To 75 |
| Cross-Section (mm) |
2.62 |
| Cross-Section (inch) |
0.103 |
| Inside Diameter (mm) |
1.24 To 247.32 |
| Inside Diameter (inch) |
0.049 To 9.737 |
| Typical Parker Compound |
N0674-70, V0747-75, S0604-70 |
| Material |
NBR, FKM, VMQ |
| Key Media Compatibility |
Petroleum Oils, Hydraulic Fluids, Water, Fuels, Greases |
Applications:
In the realm of hydraulic and pneumatic systems, NBR O-rings are extensively utilized. These components serve critical functions in sealing cylinder components, valve bodies, and fluid line connections, ensuring reliable performance and leak prevention.
For applications involving chemical processing, FKM O-rings are the preferred choice. They are specially designed for use in pump housings, reactor seals, and transfer lines that handle aggressive media, offering excellent chemical resistance and durability.
When it comes to high-temperature and high-purity environments, VMQ O-rings stand out. These are commonly employed in analytical instruments, cleanroom equipment, and thermal processing systems, where maintaining stringent purity standards and heat resistance is essential.
In general industrial assembly tasks, AS568 2-series O-rings are widely used. These O-rings are suitable for applications including gearboxes, actuators, flanges, and standard gland sealing, providing dependable sealing solutions for various mechanical assemblies.
Support and Services:
Our Pulse Valve Diaphragm is designed for optimal performance and durability in various industrial applications. For technical support, we provide comprehensive assistance including installation guidance, troubleshooting, and maintenance tips to ensure your pulse valve operates efficiently.
Our service team is equipped to help you identify the correct diaphragm model for your specific valve type and operating conditions. We offer detailed product documentation and can assist with compatibility questions to help you achieve the best performance.
Replacement diaphragms are manufactured to meet stringent quality standards, ensuring a reliable seal and extended service life. We recommend regular inspection and timely replacement of the diaphragm to prevent system downtime and maintain operational efficiency.
For after-sales service, our experts provide support for warranty claims, repair services, and parts availability. We are committed to helping you maintain your pulse valve system with minimal disruption and maximum reliability.
Packing and Shipping:
Product Packaging and Shipping for Pulse Valve Diaphragm
The Pulse Valve Diaphragm is carefully packaged to ensure it arrives in perfect condition. Each diaphragm is individually wrapped in protective material to prevent any damage during transit. The wrapped diaphragms are then placed in sturdy, labeled boxes designed to withstand handling and shipping stresses.
For bulk orders, the diaphragms are packed securely in larger cartons with appropriate cushioning to avoid movement and impact damage. All packaging materials are selected to maintain product integrity and protect against moisture, dust, and other environmental factors.
Shipping is available worldwide with reliable carriers to ensure timely and safe delivery. Tracking information will be provided once the order is dispatched. We offer various shipping options to meet customer requirements, including standard and expedited services.
Please handle the packages with care upon receipt, and inspect the products immediately for any signs of damage during shipment. In case of any issues, contact our customer service team promptly for assistance.
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