Product Description:
Parker 2-series O-rings are precisely molded elastomeric seals designed according to the AS568A dimensional standards. This series includes dash numbers ranging from 2-201 to 2-284, all sharing a consistent cross-section thickness of 3.53 mm (0.139"). The inner diameters vary widely, starting at approximately 7.59 mm for the 2-201 size and extending up to 456.06 mm for the 2-284 size. This broad range accommodates a variety of gland sizes, from small hydraulic fittings to large-scale industrial housings.
These O-rings are offered in three different elastomer families to suit diverse fluid compatibility and temperature conditions. The NBR (Nitrile) type is ideal for general-purpose petroleum and hydraulic applications. The FKM (Fluoroelastomer) variant is engineered to withstand aggressive chemical exposure and elevated temperatures. Meanwhile, the EPDM (Ethylene Propylene) compound is suitable for use with water, steam, and polar solvents.
Each elastomer compound ensures dependable resistance to compression set and maintains sealing effectiveness in both static and dynamic gland environments. This versatility makes Parker 2-series O-rings a reliable choice for a wide array of sealing requirements across various industries.
Features:
The AS568A dimensional standard ensures molded seals adhere to strict dash-number tolerances, allowing for seamless drop-in interchangeability. This guarantees compatibility and ease of replacement across various applications.
All seals in the 2-201 to 2-284 series maintain a uniform cross-sectional diameter of 3.53 mm, with a tolerance of ±0.10 mm. This consistency simplifies the design of glands and streamlines the planning of spare parts inventory.
NBR (Nitrile) seals are designed for general-purpose use, offering excellent resistance to petroleum oils, fuels, and hydraulic fluids. They typically operate effectively within a temperature range of approximately -34°C to +100°C (-30°F to +212°F).
FKM (Fluoroelastomer) seals provide superior chemical resistance, making them suitable for exposure to aggressive chemicals, acids, and fuels. Their standard service temperature ranges from about -25°C to +200°C (-13°F to +392°F).
EPDM (Ethylene Propylene) seals are ideal for applications involving hot water, steam, and polar solvents. Their operational temperature range is typically between -50°C and +150°C (-58°F to +302°F).
The series offers a broad range of sizes, covering 84 dash numbers from 2-201 to 2-284. This corresponds to inner diameters ranging approximately from 7.59 mm up to 456.06 mm, accommodating diverse sealing needs.
Technical Parameters:
| Tolerance (mm) |
±0.10, ±0.15 |
| Typical Parker Compound |
N0674-70, V0747-75, E3609-70 |
| Cross-Section (mm) |
3.53 |
| Material |
NBR, FKM, EPDM |
| Hardness (Shore A) |
70, 75 |
| Inside Diameter |
4.34 mm to 456.06 mm |
This Pulse Valve Diaphragm is designed specifically for use in QBY diaphragm pump applications, ensuring optimal performance and durability. The materials and tolerances meet the stringent requirements of QBY diaphragm pump systems, making it an ideal replacement or upgrade part for your QBY diaphragm pump.
Applications:
Hydraulic and Pneumatic Systems
For hydraulic and pneumatic applications, NBR O-rings are commonly used. These seals are ideal for cylinder seals, valve bodies, and connections in fluid lines, ensuring reliable performance and leak prevention.
Chemical Processing
In the chemical processing industry, FKM O-rings are preferred due to their excellent resistance to aggressive chemicals. They are suitable for pump housings, reactor seals, and transfer lines that handle harsh media.
Water and Steam Systems
EPDM O-rings are widely utilized in water and steam systems. These O-rings provide effective sealing for boiler fittings, hot water valves, and sanitary process lines, withstanding high temperatures and moisture.
General Industrial Assembly
For general industrial use, AS568 2-series O-rings are commonly employed. They are suitable for applications such as gearboxes, actuators, flanges, and standard gland sealing, offering versatility and dependable sealing solutions.
Support and Services:
Our Pulse Valve Diaphragm product is backed by comprehensive technical support and services to ensure optimal performance and longevity. We provide detailed installation guidance, troubleshooting assistance, and maintenance tips to help you achieve the best results in your applications. Our expert team is available to address any technical queries and provide solutions tailored to your specific needs. Additionally, we offer spare parts and replacement diaphragms to minimize downtime and maintain the efficiency of your pulse valve systems. Trust our dedicated support services to keep your operations running smoothly and efficiently.
Packing and Shipping:
Product Packaging:
The Pulse Valve Diaphragm is carefully packaged to ensure protection during transit. Each diaphragm is individually wrapped in a protective film to prevent damage and contamination. The wrapped diaphragms are then placed in sturdy, cushioned boxes designed to absorb shocks and vibrations. Packaging materials are chosen to be environmentally friendly and compliant with international shipping standards.
Shipping:
We offer reliable shipping options to deliver the Pulse Valve Diaphragm promptly and safely to your location. Products are shipped via trusted courier services with tracking available for all orders. Shipping times vary depending on the destination, with options for standard and expedited delivery. All shipments include proper documentation and handling instructions to ensure the diaphragm arrives in optimal condition.
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