AS568-224 Gasket Ring — Silicone and Buna Material Selection
AS568-224 replacement-ring selection
Provide the kit drawing, compound designation and required hardness before ordering a replacement ring.
Application
Material selection for AS568-224 gasket rings:
AS568-224 identifies an O-ring size reference, not a material or pressure rating. This listing names silicone, while the earlier kit description specified Buna/NBR at 90 Shore A. Confirm the kit bill of materials before ordering: silicone and NBR are different compounds and must not be treated as interchangeable. For a Bottom QC kit, provide its maker, model, drawing revision and sealing-gland dimensions; the kit name alone does not establish fit.
Qinuo Equipment list:
| 20 Cavities Rounding Comounding Machines |
Automatic Powder Distribution Machine |
Automatic Oil Distribution Machine |
8 Sets of Open Cell Mixers
( From 6 inches to 16 inches) |
5 Layers of Material Cooling Machine |
3 Sets of 55kq Closed Cell Mixers |
| 2 Sets of Material Preform Machine |
3 Sets of Silicone Vacuum Mixer |
65 mm Diameter Silicone Extrusion Line |
| JG-65mm Diameter Silicone Extrusion Line |
75mm Diameter Silicone Extrusion Line |
90 mm Diameter General Rubber
Extrusion Line |
75mm Diameter General
Rubber Extrusion Line |
Fiber Reinforced Rubber Extrusion Line |
Vulcanizing Tank |
| Adhesive Machin |
28 Sets of Small Vulcanizing Molding Machines(From 50Ton to 100 Tons) |
25 Sets of 200 Ton Vulcanizing
Molding Machine |
4 Sets of 200 Ton Injection
Compression Machine |
2 Sets of 200 Ton Vacumm
Compression Machine |
2 Sets of 250 Ton Vulcanizing
Molding Machine |
2 Sets of Horizontal Molding Machine |
4 Sets of 300 Ton Vulcanizing
Molding Machine |
2 Sets of 300 Ton Injection
Compression Machine |
Punching Machine |
Tensile Strength Tester |
| Brittleness Tester |
Hardness Tester |
Thickness Gauge |
| Mooney viscometer |
Rheometer Tester |
Analytical Balance |
| Electrical Resistance Measurer |
Density Tester |
2 sets Aging Testing Oven |
Qinuo Material processing range:
Silicone
|
SBR |
ACM |
PE |
| EPDM |
NBR |
IIR |
PC |
| Neoprene |
Silicone Sponge |
CSM |
PP |
| Urethane |
Closed Cell Sponge |
ABS |
PA |
| |
HNBR |
Hard PVC |
TPE |
| NR |
ECO |
Soft pvc |
TPV |
| POM |
TPU |
|
|
Qinuo Custom Capabilties:
| Customized services |
Plastic & Rubber bonding |
Mold Design |
| Customized extrusion |
Extrusion and bonded gaskets |
Mold Production |
| Injection Molding |
Self Adhesive rubber profile |
Customized Package |
| Sheet Cutting |
Rubber Complex Intake Hose |
Problem Solving |
| Standard Size extrusion |
Reinforced rubber tubes |
Assembly |
| Special Compound design |
Rubber Solution Suggestion |
Sourcing |
| Rubber& Metal bonding |
Product Description
Order this ring by AS568-224 size reference together with a specified compound, hardness and dimensional tolerances. Include an approved sample or drawing when replacing a kit seal.
Check inner diameter and circular cross-section against the required AS568-224 drawing. A flat washer, square-section ring or X-ring requires its own dimensions and is not identified by an O-ring dash number alone.
Silicone and Buna/NBR options require separate compound specifications. Fluid compatibility, temperature limits and compression-set requirements must be reviewed for the chosen compound.
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Material:
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Silicone or Buna/NBR, as confirmed by the kit bill of materials; do not substitute without approval
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Hardness
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Specify Shore A hardness by approved compound; 90 Shore A applies only if required for the Buna kit item
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Mode of Production
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Molded continuous O-ring by approved process; extruded and joined rings require separate joint requirements
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Production review
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Tooling, compound and inspection requirements reviewed against the approved ring drawing
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Size/Color
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AS568-224 circular-section size reference; color and tolerances by approved order specification
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More Pictures of the rubber O rings:
Other relative rubber products for oil drilling use:
Moulded Rubber Products
Rubber Bonded with Metal Products
Extruded Rubber Products
Packing and shipping
1: Express: S.F. , DHL, UPS, TNT, FedEx ect, for urgent and small order.
2: Air shipment: air port to air port , or air port to door.
3: Sea shipment: suitable for bulk goods. it will takes more longer time than air shipment.
Our company
Shanghai Qinuo Industry Co. Ltd
provides custom rubber, plastic and machined parts for industrial applications.
For kit replacement rings, identify the compound and dimensions before comparing alternatives.
Send the drawing revision, sample, quantity and required inspection documents for manufacturing review.
The company operates an ISO 9001 quality management system. Product-specific compliance and test documentation should be specified with the order.
The steps of the production:
FAQ
1. Does AS568-224 identify silicone or Buna?
No. The size reference does not identify the polymer. Confirm silicone or NBR using the kit bill of materials and compound specification.
Color and photograph filenames cannot establish material identity or hardness. Request compound identification when it is needed for acceptance.
2. What is needed to replace a Bottom QC kit ring?
a. Kit manufacturer, model and drawing revision
b. Ring inner diameter, circular cross-section and tolerances
c. Material designation, Shore A hardness and any required compound tests
d. Fluid formulation and additives
e. Normal and peak temperatures
f. Pressure cycles, gland clearance and seal squeeze
g. Installation method and required batch documentation
3. Can silicone replace a 90 Shore A Buna ring?
1. Review the exact compounds and application before substitution.
2. Matching nominal size does not demonstrate matching fluid resistance.
3. Confirm compression-set and mechanical requirements for the gland.
4. For moving seals, include motion, lubrication and wear requirements.
5. A pressure rating requires the complete assembly design and qualification.
4. How should these rings be packed and inspected?
1. Identify size and compound on the agreed package label.
2. Keep silicone and NBR batches separately identified.
3. Specify dimensional and hardness acceptance checks.
4. Include any required surface-defect and cleanliness criteria.
5. Confirm storage conditions and shelf-life requirements for the chosen compound.
More information about AS568-224 Gasket Ring — Silicone and Buna Material Selection
Send a dimensioned drawing or original sample with the required material and hardness.
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