Product Description:
Parker 2-series O-rings are expertly manufactured elastomeric seals that adhere precisely to the AS568A dimensional standards. This product line includes dash numbers ranging from 2-102 to 2-178, all characterized by a consistent cross-section thickness of 2.62 mm (0.103"). The inside diameters span from as small as 1.24 mm (2-102) to as large as 247.32 mm (2-178), accommodating a wide variety of gland sizes. These sizes make the O-rings suitable for applications that vary from delicate miniature instruments to substantial industrial housings.
The O-rings are offered in three main types of elastomer materials, each designed to satisfy different fluid compatibility and temperature requirements. The NBR (Nitrile) elastomer is ideal for general-purpose use in petroleum and hydraulic systems. FKM (Fluoroelastomer) compounds are intended for harsher chemical environments and higher temperature operations. Meanwhile, VMQ (Silicone) elastomers are chosen for applications involving extreme temperature ranges and where high purity is necessary.
Each elastomeric material is formulated to ensure strong compression set resistance, maintaining effective sealing performance over time. Additionally, these O-rings provide dependable sealing integrity in both static and dynamic gland configurations, making them versatile and reliable components in a variety of sealing applications.
Features:
The AS568A standard ensures dimensional compliance by molding seals to precise dash-number tolerances. This guarantees easy drop-in interchangeability across compatible components, streamlining replacement and maintenance processes.
A key feature of the 2-102 to 2-178 series is its uniform cross-section. Each seal in this range possesses a consistent cord size of 2.62 mm, with a tolerance of ±0.08 mm. This uniformity simplifies gland design and aids in efficient spare parts management.
Regarding material options, the NBR (Nitrile) compound offers excellent general-purpose performance. It exhibits strong resistance to petroleum oils, fuels, and hydraulic fluids, operating effectively within a temperature range of approximately -34°C to +121°C (-30°F to +250°F).
For applications requiring enhanced chemical resistance, FKM (Fluoroelastomer) compounds provide superior durability against aggressive chemicals, acids, and fuels. Their standard service temperature spans about -26°C to +204°C (-15°F to +400°F), with specialized low-temperature formulations available that extend usability down to -46°C.
Silicone-based VMQ materials stand out for their exceptional flexibility across extreme temperature ranges. They perform reliably from roughly -54°C to +232°C (-65°F to +450°F), making them well-suited for high-purity environments and medical applications where temperature resilience is critical.
All compounds used are precision molded using standard Parker formulations, such as N0674-70, V0747-75, and S0604-70. This ensures consistent hardness and predictable compression set characteristics for dependable seal performance.
The series boasts broad size coverage, including 77 dash numbers ranging from 2-102 to 2-178. These correspond to inner diameters spanning from 1.24 mm up to 247.32 mm, accommodating a wide variety of sealing requirements.
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 |
| 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 to ensure reliable sealing in cylinder seals, valve bodies, and connections within fluid lines. These O-rings are essential for maintaining system integrity under varying pressure conditions.
In the chemical processing industry, FKM O-rings are preferred for their superior chemical resistance. They are typically used in pump housings, reactor seals, and pipelines that handle aggressive media, providing durability and performance in harsh environments.
For applications involving high temperatures and requiring high purity, VMQ O-rings are an ideal choice. These are often found in analytical instruments, cleanroom equipment, and thermal processing systems where maintaining stringent cleanliness and heat resistance is crucial.
General industrial assembly frequently employs AS568 2-series O-rings. These standard size O-rings are versatile and used in gearboxes, actuators, flanges, and various standard gland sealing tasks, offering dependable sealing solutions across a range of industrial applications.
Support and Services:
Our Pulse Valve Diaphragm product is supported by a dedicated technical support team committed to ensuring optimal performance and longevity of your equipment. We provide comprehensive installation guidance, troubleshooting assistance, and maintenance tips to help you maximize the efficiency of your pulse valves.
Our services include detailed product documentation, technical training sessions, and prompt response to technical inquiries. We also offer customized solutions tailored to specific application requirements, ensuring that the diaphragm meets the unique needs of your system.
In addition, we conduct regular updates and improvements based on customer feedback and technological advancements, helping you stay ahead with the latest in pulse valve diaphragm technology. Our goal is to provide reliable, high-quality support that minimizes downtime and enhances operational productivity.
Packing and Shipping:
Product Packaging:
The Pulse Valve Diaphragm is carefully packaged to ensure maximum protection during transit. Each diaphragm is individually sealed in anti-static, moisture-resistant packaging to prevent damage and contamination. The sealed diaphragms are then placed in sturdy, corrugated cardboard boxes with appropriate cushioning materials to minimize movement and impact.
For bulk orders, the diaphragms are organized in layers separated by protective sheets, securely packed in larger cartons or crates. All packaging materials are labeled clearly with product information, handling instructions, and batch numbers to facilitate easy identification and inventory management.
Shipping:
We offer reliable shipping options to meet your delivery requirements. The packaged Pulse Valve Diaphragms are shipped via trusted carriers with tracking capabilities to ensure timely and safe delivery. Shipping methods include standard ground, expedited air freight, or customized logistics solutions based on the order size and destination.
Before shipping, all products undergo a final quality inspection and are securely sealed to prevent tampering. Shipping documentation, including packing lists and certificates of compliance, are included with each shipment to support customs clearance and inventory control.
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