Product Description:
Parker 2-series O-rings are meticulously manufactured elastomeric seals that conform to the AS568A dimensional standards. This product line encompasses dash numbers ranging from 2-102 to 2-178, all maintaining a consistent cross-section thickness of 2.62 mm (0.103 inches). The inner 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), thus accommodating a diverse array of gland sizes — from small-scale instrumentation to large industrial housings.
These O-rings come in three main elastomer categories, each designed to meet distinct fluid compatibility and temperature requirements. The NBR (Nitrile) option is geared towards general-purpose applications involving petroleum products and hydraulic systems. For environments that involve aggressive chemicals and higher temperatures, FKM (Fluoroelastomer) is the preferred choice. Meanwhile, VMQ (Silicone) O-rings are ideal for extreme temperature conditions and applications requiring high purity.
Each elastomer compound is engineered to provide excellent resistance to compression set and maintain sealing performance in both static and dynamic gland configurations. This ensures dependable sealing integrity across a broad range of industrial needs.
Features:
AS568A Dimensional Compliance
The products are molded to conform precisely to the AS568A standard dash-number tolerances, ensuring seamless drop-in interchangeability. This adherence guarantees compatibility across various applications without the need for modifications.
Uniform 2.62 mm Cross-Section
The entire range from series 2-102 to 2-178 features a consistent cord diameter of 2.62 ± 0.08 mm. This uniformity greatly simplifies gland design and facilitates efficient spare-parts management.
Material Options and Their Benefits
NBR (Nitrile) General Purpose: Known for its excellent resistance to petroleum oils, fuels, and hydraulic fluids, NBR performs reliably within a typical temperature range of approximately -34°C to +121°C (-30°F to +250°F).
FKM (Fluoroelastomer) Chemical Resistance: Offering superior durability against aggressive chemicals, acids, and fuels, FKM operates effectively across a standard service temperature range of -26°C to +204°C (-15°F to +400°F). Additionally, special low-temperature compounds extend its usage down to -46°C.
VMQ (Silicone) Extreme Temperature Flexibility: Silicone compounds provide a broad operational temperature window from approximately -54°C to +232°C (-65°F to +450°F), making them ideal for high-purity and medical applications requiring exceptional flexibility.
Precision Molded Compounds
These products are manufactured using standard Parker formulations such as N0674-70, V0747-75, and S0604-70, ensuring consistent hardness and reliable compression set characteristics across batches.
Broad Size Coverage
The series encompasses 77 dash numbers, ranging from 2-102 to 2-178, which cover internal diameters from as small as 1.24 mm up to 247.32 mm. This extensive size range meets diverse application requirements.
Technical Parameters:
| Inside Diameter (mm) | 1.24 To 247.32 |
| Inside Diameter (inch) | 0.049 To 9.737 |
| Cross-Section (mm) | 2.62 |
| Cross-Section (inch) | 0.103 |
| Hardness (Shore A) | 70 To 75 |
| Material | NBR, FKM, VMQ |
| Typical Parker Compound | N0674-70, V0747-75, S0604-70 |
| Key Media Compatibility | Petroleum Oils, Hydraulic Fluids, Water, Fuels, Greases |
Applications:
Hydraulic and pneumatic systems commonly utilize NBR O-rings. These seals are essential for ensuring tight connections in cylinder seals, valve bodies, and fluid line connections, providing reliable performance in various mechanical applications.
In the field of chemical processing, FKM O-rings are widely used. They are specially designed to withstand harsh environments and are ideal for applications such as pump housings, reactor seals, and the transfer of aggressive media through process lines.
For environments requiring high-temperature resistance and high purity, VMQ O-rings are the preferred choice. These O-rings are often employed in analytical instruments, cleanroom equipment, and thermal processing systems, where maintaining strict contamination control and temperature stability is critical.
General industrial assembly projects frequently depend on AS568 2-series O-rings. These versatile seals are commonly used in gearboxes, actuators, flanges, and standard gland sealing, delivering dependable sealing solutions across numerous manufacturing and assembly processes.
Support and Services:
Our Pulse Valve Diaphragm is designed to ensure optimal performance and longevity in industrial applications. For technical support, our team of experts is available to assist with installation, troubleshooting, and maintenance to maximize the efficiency of your pulse valve system. We provide detailed documentation, including user manuals and maintenance guides, to help you understand the correct handling and replacement procedures.
In addition to technical support, we offer comprehensive services such as custom diaphragm fabrication, quality inspections, and performance testing to meet your specific operational requirements. Our support services aim to minimize downtime and extend the service life of your equipment by providing timely advice and high-quality replacement parts.
For ongoing service needs, we recommend regular inspection and preventive maintenance in accordance with the operational environment and usage intensity. Our team is committed to delivering prompt and effective solutions to ensure your pulse valve diaphragm functions reliably under all conditions.
Packing and Shipping:
Product Packaging: Each Pulse Valve Diaphragm is carefully packaged in a protective plastic bag to prevent any damage or contamination during transit. The diaphragms are then placed in a sturdy cardboard box with cushioning materials to ensure they remain secure and intact. Packaging is designed to protect the product from moisture, dust, and physical impact.
Shipping: We offer reliable shipping options to deliver the Pulse Valve Diaphragm promptly and safely. Orders are processed within 1-2 business days. Shipping methods include standard ground, expedited, and international shipping, depending on the destination. Tracking information will be provided once the order has been dispatched. We ensure that all packages are labeled clearly and handled with care to guarantee customer satisfaction upon delivery.
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