OEM Pneumatic Seals Sm C Cylinder Repair Kit, Seal Ring DNC-32-40-50-63-80-100-125-Ppv-a O Ring NBR

Product Description

Comprehensive O-Ring Size & Dimension Charts

Unlock the secrets of precision with our O-ring size categories. Discover the two quintessential dimensions: standard and metric. While the United States embraces standard sizing, metric sizing is crafted to meet the diverse demands of international standards, fine-tuned for regions such as Europe and Japan. At Seal & Design, our vast inventory leaves no stone unturned, ensuring that we can deliver virtually any size with unparalleled precision, precisely tailored to your specifications.

Unmatched Service Guarantee
• Experience the zenith of precision and reliability in service guarantees, thanks to our impeccable logistics and SAP systems, ensuring every customer receives flawless service.
• Our promise of unparalleled delivery speed is upheld by meticulously managed stock levels, ensuring you receive your products in the shortest time possible.

Our Inventory of Standard O-Rings

AS 568A USA	BS 4518 England	DIN 3771 Germany	SMS 1586 Sweden
AFNOR 47501 France	JIS B2401 Japan	JASO F404 Japan	ISO 3601 International

Extensive Material List

Material	Hardness   (Shore A)	Temperature	Size
			Standard Size	Available
NBR(Buna,Nitrile) FKM(FPM) EPDM Silicone(VMQ) HNBR FFKM(FFKM,Kalrez)	60-90 70-90 60-90 10-70 60-90 70-90	-40ºC-110ºC -20ºC-220ºC -45ºC-150ºC -55ºC-204ºC -48ºC-180ºC  -18ºC-326ºC	AS-568(USA) JIS-B2401(Japan) DIN-3771(Germany) BS-1516(UK) ISO3601(International) R(France)	ID≤2000mm CS≤40mm
Resistance	Color	Certificate	Application
Hydraulic Fluid Engine Oil Chemical Ozone Steam & Hot Water Low Temperature High Temperature	Black Brown Red Green White Blue Clear Customized	IS09001 ISO14001 TS16949 RoHS REACH	Auto Industry Construction Machinery Machine Tool Equipment Food Health Water Treatment Chemical Processing Hydraulic Pneumatic Industrial Manufaturing

Company Profile

Exhibition

Certifications

Packaging & Shipping

FAQ

1. What is an O-Ring?
An O-Ring is a circular elastomeric seal with a round cross-section, designed to prevent fluid or gas leakage in mechanical systems. It works by compressing between two surfaces, creating a reliable barrier against contaminants and pressure loss.

2. What materials are available for O-Rings?
We provide high-performance materials compliant with international standards:
- **NBR (Nitrile Rubber)**: Oil-resistant, ideal for automotive and industrial applications.
- **FKM/FPM (Fluoroelastomer/FKM®)**: Resists extreme temperatures (-20°C to +200°C) and chemicals.
- **Silicone (VMQ)**: Non-toxic, flexible, and heat-resistant (-60°C to +230°C), perfect for food, medical, and aerospace industries.
- **EPDM**: Excellent for water, steam, and UV/ozone resistance.
- **PTFE**: Chemically inert, suits aggressive media.
*Custom materials (e.g., FDA/USP Class VI, RoHS, REACH) available upon request.*

3. How to choose the right O-Ring size?
We follow **ISO 3601** and **AS568** standards. Provide us with:
- **Inner Diameter (ID)**
- **Cross-Section (CS)**
- **Application details** (pressure, temperature, media).
*Need help? Our engineers offer free technical support.*

4. What causes O-Ring failure?
Common issues include:
- **Improper installation** (twisting, over-stretching).
- **Material incompatibility** (chemical swelling or degradation).
- **Extreme temperatures/pressure** beyond design limits.
- **Aging** due to ozone/UV exposure.

5. How to ensure proper O-Ring installation?
- Clean grooves thoroughly; remove sharp edges.
- Lubricate with compatible grease (e.g., silicone-based).
- Avoid stretching >5% during assembly.
- Use installation tools for precision.
*Download our installation guide [link] or request training.*

6. Do you offer custom O-Rings?
Yes! We specialize in:
- **Non-standard sizes** (micro to large diameters).
- **Special shapes** (X-rings, square rings).
- **Tailored materials** (anti-static, conductive, low-temperature).
- **Color coding** for easy identification.
*Submit your CAD drawing or specifications for a quote within 24 hours.*

7. What certifications do your products have?
We comply with:
- **ISO 9001:2015** (quality management).
- **FDA, USP Class VI** (food/medical).
- **RoHS/REACH** (environmental compliance).
- **ASTM International** standards.

8. What is your MOQ and lead time?
- **MOQ**: Flexible (from prototypes to bulk orders).
- **Standard products**: 5-7 days.
- **Custom orders**: 2-4 weeks (depending on complexity).
*Express shipping and bonded inventory options available.*

9. How to store O-Rings?
- Keep in original packaging, away from direct sunlight.
- Store at 15-25°C; avoid ozone sources (e.g., motors).
- Shelf life: Up to 10 years for most materials.

10. Why choose us as your O-Ring supplier?
- **Global expertise**: Serving 50+ countries in automotive, oil & gas, and pharmaceuticals.
- **Cost-effective**: Competitive pricing with no compromise on quality.
- **Technical partnership**: Free material selection advice and failure analysis.
- **Logistics excellence**: DDP terms, air/sea shipping, and door-to-door delivery.

11. Do you provide samples?
Yes! Request free samples to test performance in your application.

12. What if I need urgent replacement?
Our 24/7 emergency service guarantees fast-track production and global shipping.

This FAQ highlights technical expertise, compliance, and global service capabilities, aligning with international buyers' priorities. Adjust bold keywords, certifications, or services to match your company's strengths!