Shanghai Qinuo Industry Co., Ltd.
| Inside Diameter | 2.234 in (56.74 mm) |
| Hardness | 70 / 90 Shore A options |
| Quality Management | ISO 9001:2015 quality management system |
| AS568 Size | AS568-228 |
| Outside Diameter | 2.512 in (63.80 mm) |
| Seal Profile | Continuous molded O-ring |
| Cross Section | 0.139 in (3.53 mm) |
| Manufacturing Method | Rubber molding, vulcanization and finishing |
| Elastomer | NBR / HNBR / FKM compound options |
| Featured Oilfield Fitment | 2 in FIG 206 hammer union sealing applications |
| Model Number | AS568-228 |
| Certification | ISO 9001:2015 Quality Management System |
| Brand Name | Royal Way |
| Place of Origin | China |
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Product Specification
| Inside Diameter | 2.234 in (56.74 mm) | Hardness | 70 / 90 Shore A options |
| Quality Management | ISO 9001:2015 quality management system | AS568 Size | AS568-228 |
| Outside Diameter | 2.512 in (63.80 mm) | Seal Profile | Continuous molded O-ring |
| Cross Section | 0.139 in (3.53 mm) | Manufacturing Method | Rubber molding, vulcanization and finishing |
| Elastomer | NBR / HNBR / FKM compound options | Featured Oilfield Fitment | 2 in FIG 206 hammer union sealing applications |
| Model Number | AS568-228 | Certification | ISO 9001:2015 Quality Management System |
| Brand Name | Royal Way | Place of Origin | China |
| High Light | AS568-228 O-Ring ，2 in FIG 206 Hammer Union O-Ring ，NBR HNBR FKM Options Rubber O Ring | ||
Royal Way AS568-228 O-rings combine a clearly defined AS568 size with material and hardness choices for oilfield sealing programs. This 2.234-inch inside-diameter, 0.139-inch cross-section O-ring is offered for compatible 2-inch FIG 206 hammer union sealing applications, along with pump, valve, hydraulic and pressure-control equipment specified for this seal size.
Choose NBR, HNBR or FKM compounds and 70 or 90 Shore A hardness to match your equipment requirements. Jiangsu Ruowei Energy Technology Co., Ltd. supports OEM supply, repeat orders and custom rubber production through Royal Way.
Use the dimensional data below to identify the AS568-228 size for your bill of materials, maintenance schedule or replacement-seal request.
| Specification | Nominal value | Metric value |
|---|---|---|
| AS568 dash size | AS568-228 | — |
| Inside diameter (ID) | 2.234 in | 56.74 mm |
| Cross section (CS) | 0.139 in | 3.53 mm |
| Outside diameter (OD) | 2.512 in | 63.80 mm |
| Seal profile | Continuous molded O-ring | Round cross section |
| Product family | Oilfield and industrial elastomer seals | Custom production available |
Build a seal selection around the fluid, temperature range, equipment duty and maintenance interval. Royal Way offers several compound directions and hardness choices for this AS568-228 O-ring program.
| Material option | Common selection focus | Hardness choices |
|---|---|---|
| NBR / Buna-N | Oilfield oils, hydraulic fluids and general-purpose sealing applications | 70 or 90 Shore A |
| HNBR / HSN | Applications calling for enhanced heat, aging and mechanical properties | 70 or 90 Shore A |
| FKM | Selected higher-temperature and chemical-service applications | 70 or 90 Shore A |
| Compound development | Material selection coordinated with the buyer’s fluid and operating profile | Discuss project requirements |
Share the desired compound, hardness, equipment model and service conditions with your inquiry so our team can prepare the right AS568-228 configuration for your purchasing program.
This size is supplied for compatible 2-inch FIG 206 hammer union sealing applications. The defined AS568-228 dimensions give maintenance teams a direct size reference when sourcing replacement O-rings for flowline and pressure-pumping equipment.
The same size is also used in equipment designs that specify an AS568-228 O-ring, including selected pumps, valves, hydraulic cylinders and pressure-control assemblies. Our product team can help organize material, hardness and packing options for service kits, planned maintenance and production replenishment.
| Application group | AS568-228 supply role | Buyer program |
|---|---|---|
| 2 in FIG 206 hammer unions | Replacement O-ring for compatible union sealing assemblies | Flowline maintenance and service inventory |
| Oilfield pumps and valves | Standard-size elastomer sealing component where specified | OEM supply and scheduled maintenance |
| Hydraulic and pressure-control equipment | Size-specific seal available in multiple compound options | Repair kits and replacement parts |
| Distributor and service-center stock | AS568-228 product with NBR, HNBR and FKM choices | Bulk orders and repeat replenishment |
Royal Way supports oilfield rubber parts from compound preparation through finished-product inspection. In-house production coordination connects material selection, mold preparation, rubber molding, vulcanization, trimming, dimensional checks and export packing in one manufacturing workflow.
| Production stage | Manufacturing focus | Customer value |
|---|---|---|
| Compound preparation | Material and hardness selection for the requested sealing program | Consistent product specification across the order |
| Tooling and mold preparation | Production setup for the selected O-ring size and profile | Repeatable molded geometry |
| Molding and vulcanization | Controlled forming and curing of elastomer components | Uniform finished seal appearance and structure |
| Finishing and inspection | Trimming, visual review and dimensional measurement | Order-level quality review before packing |
| Packing and dispatch preparation | Product identification and shipment packing | Organized handling for industrial and oilfield buyers |
Production is managed under an ISO 9001:2015 quality management system. Quality attention is built into material coordination, molding, finishing and final inspection, helping buyers source repeatable O-ring sizes for maintenance and OEM supply.
| Quality checkpoint | What is reviewed |
|---|---|
| Order specification review | AS568 size, compound, hardness and purchase requirements |
| Production process review | Molded shape, surface finish and edge condition |
| Dimensional inspection | Inside diameter, cross section and overall outside diameter |
| Final order review | Product identification, quantity and packing readiness |
As a rubber manufacturer serving oilfield and industrial markets, Jiangsu Ruowei Energy Technology Co., Ltd. can coordinate O-ring supply for equipment makers, distributors, repair centers and field-service teams. Tell us your target quantity and supply schedule to plan a suitable production run.
For a quick quotation, send the product name AS568-228 O-ring, required material and hardness, order quantity, delivery destination and any drawing or equipment reference. Royal Way can help align the requested specification with your 2-inch FIG 206 hammer union application or broader O-ring inventory plan.
Contact Jiangsu Ruowei Energy Technology Co., Ltd. for factory-direct oilfield O-rings, molded rubber sealing components and OEM manufacturing support from Jiangsu, China.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2003
Total Annual:
5,000,000-10,000,000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Shangi 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, con... Shangi 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, con...
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