Product Description:
Parker 2-series O-rings are expertly crafted elastomeric seals that conform precisely to the AS568A dimensional standards. This product line includes dash numbers ranging from 2-102 to 2-178, all sharing a consistent cross-sectional thickness of 2.62 mm (0.103"). The inside diameters vary widely, starting at 1.24 mm for the 2-102 size and extending up to 247.32 mm for the 2-178 size. This extensive range accommodates a variety of gland dimensions, from tiny instrumentation components to large-scale industrial housings.
To address diverse fluid compatibility and temperature demands, these O-rings are offered in three main elastomer families. The NBR (Nitrile) option is suitable for general-purpose petroleum and hydraulic applications. The FKM (Fluoroelastomer) variant is designed for use with aggressive chemicals and higher temperature environments. Lastly, the VMQ (Silicone) grade is ideal for extreme temperature conditions and applications requiring high purity.
Each elastomer compound ensures dependable resistance to compression set and maintains sealing effectiveness across both static and dynamic gland configurations. This makes Parker 2-series O-rings a reliable choice for a broad spectrum of sealing applications.
Features:
AS568A Dimensional Compliance
The seals are precisely molded to meet AS568A standard dash-number tolerances, ensuring easy drop-in interchangeability with existing components.
Uniform 2.62 mm Cross-Section
All products in the 2-102 to 2-178 series maintain a consistent cord diameter of 2.62 ± 0.08 mm. This uniformity simplifies gland design and streamlines the planning of spare parts.
NBR (Nitrile) for General Purpose Use
Nitrile rubber offers excellent resistance to petroleum oils, fuels, and hydraulic fluids. It performs effectively within a typical temperature range of approximately -34°C to +121°C (-30°F to +250°F).
FKM (Fluoroelastomer) for Chemical Resistance
Fluoroelastomer compounds provide high resistance against aggressive chemicals, acids, and fuels. Their standard operating temperature spans from about -26°C to +204°C (-15°F to +400°F), with special low-temperature variants available that function down to -46°C.
VMQ (Silicone) for Extreme Temperature Flexibility
Silicone-based seals offer a broad service temperature range from roughly -54°C to +232°C (-65°F to +450°F). They are especially suitable for high-purity and medical applications requiring extreme temperature flexibility.
Precision Molded Compounds
The seals are manufactured using standard Parker formulations, such as N0674-70, V0747-75, and S0604-70, to ensure consistent hardness and minimize compression set for reliable performance.
Extensive Size Range
The product line covers 77 dash numbers from 2-102 to 2-178, accommodating inside diameters ranging from 1.24 mm up to 247.32 mm, thus providing broad coverage for various applications.
Technical Parameters:
| Inside Diameter (mm) |
1.24 To 247.32 |
| Inside Diameter (inch) |
0.049 To 9.737 |
| Cross-Section (inch) |
0.103 |
| Cross-Section (mm) |
2.62 |
| Hardness (Shore A) |
70 To 75 |
| Material |
NBR, FKM, VMQ |
| Key Media Compatibility |
Petroleum Oils, Hydraulic Fluids, Water, Fuels, Greases |
| Typical Parker Compound |
N0674-70, V0747-75, S0604-70 |
This Pulse Valve Diaphragm is specially designed for use in QBY diaphragm pump applications, ensuring excellent compatibility and performance. The QBY diaphragm pump benefits from the durable materials and precise dimensions of this diaphragm. Ideal for various media, this product is a reliable choice for your QBY diaphragm pump needs.
Applications:
In the realm of hydraulic and pneumatic systems, NBR O-rings are widely used. These rings provide effective sealing solutions for cylinder seals, valve bodies, and fluid line connections, ensuring reliable performance and leak prevention.
For chemical processing applications, FKM O-rings are the preferred choice. They are designed to withstand harsh environments and are commonly employed in pump housings, reactor seals, and transfer lines that handle aggressive media.
When it comes to high-temperature and high-purity requirements, VMQ O-rings stand out. These rings are ideal for use in analytical instruments, cleanroom equipment, and thermal processing systems, offering excellent resistance to extreme conditions and maintaining purity standards.
In general industrial assembly, AS568 2-series O-rings are frequently utilized. These standard O-rings provide dependable sealing solutions for gearboxes, actuators, flanges, and standard gland sealing applications, supporting a wide range of mechanical operations.
Support and Services:
Our Pulse Valve Diaphragm is engineered for optimal performance and durability in demanding industrial applications. To ensure the longevity and reliability of your pulse valve diaphragm, it is important to follow proper installation and maintenance procedures.
Technical support is available to assist you with product selection, installation guidance, troubleshooting, and maintenance tips. Our team of experts can help you identify the correct diaphragm model for your specific pulse valve and operating conditions.
We recommend regular inspection of the diaphragm for signs of wear, cracking, or deformation. Replacing the diaphragm at the first sign of damage will help prevent valve malfunction and maintain system efficiency.
For maintenance, clean the diaphragm and valve components with a soft cloth and avoid using harsh chemicals that could degrade the material. Ensure that the diaphragm is properly seated during installation to avoid leaks and ensure optimal sealing performance.
If you experience any issues or require technical advice, please consult the product manual or reach out to our technical support team. We are committed to providing prompt and effective solutions to keep your pulse valve systems operating smoothly.
Additionally, we offer repair and replacement services for pulse valve diaphragms to minimize downtime and maintain operational continuity. Our service centers utilize genuine parts and adhere to strict quality standards.
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 that provide additional cushioning and support.
For bulk orders, the diaphragms are packed in larger cartons with adequate padding to avoid movement and impact. All packaging materials are chosen to be durable and moisture-resistant, ensuring the product remains safe from environmental factors.
Shipping is handled through reliable carriers with tracking options available for all orders. We offer various shipping methods to accommodate customer needs, including standard, expedited, and freight shipping for larger quantities. Each shipment includes detailed documentation and handling instructions to facilitate smooth delivery and installation.
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