Product Overview
SHQN offers AS568-size O-rings for oilfield equipment replacement and sealing applications. This listing focuses on nominal 90 Shore A compounds; specify the required hardness and tolerance for the selected material. Seal suitability depends on the exact size, groove design, compound and operating conditions. A hardness value alone does not establish a pressure rating or guarantee leak-free service.
Key Features
- AS568 Size Identification: Specify the dash number, inside diameter and cross-section. Confirm the required size and dimensional tolerance against the equipment drawing before ordering.
- 90 Shore A Compound Selection: Confirm hardness, tolerance and test requirements for the chosen compound. Review the groove, clearance and any backup-ring arrangement for the intended pressure and temperature.
- Mechanical Properties: Specify tensile strength, elongation and tear-resistance requirements separately, with the applicable test method. These properties must be checked for the selected compound.
- Custom Color Coding: Beyond standard black, we provide Vibrant Colored O-Rings (Green, Blue, Red, Brown, etc.). Agree a color convention for assembly identification; color alone does not identify material, size or pressure suitability.
- Material Selection: NBR, HNBR, FKM and other listed polymer families require review against the actual fluid or gas, temperature and exposure conditions. H2S, CO2 or drilling-mud compatibility must be established for the specific compound.
Applications
Potential replacement applications, subject to equipment fit and compound qualification, include:
- Downhole drilling tools and motors.
- Blowout Preventers (BOPs).
- Wellhead and Christmas tree components.
- Hydraulic fracturing equipment.
- Subsea valves and connectors.
90 Shore A AS568 O-Ring Order Specification
For replacement orders, provide the AS568 dash number or a dimensioned drawing, material designation, nominal hardness and tolerance, groove details, operating medium, continuous and peak temperature, pressure and movement type. Include the equipment reference, quantity and inspection requirements. For gas service, provide gas composition and decompression conditions so the compound and supporting qualification can be reviewed. Confirm any required backup rings as separate assembly components.
About us:
Shanghai Qinuo Industry Co., Ltd was established in the year of 2013 at Shanghai Free Trade Zone, we are a new and high-tech enterprise integrating R&D, production and sales. Since its inception, we adhering to the "Quality for Survival, Innovation Competes For Development " concept, continuous development and innovation, we won a good reputation at home and abroad, we are using Royal Way & SHQN two brands do the marketing. Under the Shanghai Qinuo, we have a wholly-owned factories in Nantong City, "Nantong Ruowei Seal Technology Co., Ltd", only one hour's drive to Shanghai Pudong Airport or Shanghai Sea port to ensure the quick delivery, we have more than 30 rubber vulcanizing machines and relevant equipments, so that Qinuo can produce more than 20 kinds of rubber rings or other rubber products together to meet our customer's demands, our monthly rubber processing capability can up-to 40 tons (about 80, 000
lbs) or more. And our production capacity still in rapid growing. We adopt comprehensive quality management system based on the ISO9001, our products are mainly exported to the North & South America, Middle East, North Africa, Europe and others more than 100 countries extend all over the globe. Qinuo is sincerely wishing to cooperate with you.
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