Black Rubber O Ring Seal with Different Hardness and Sizes for Oilfield and Gas Industry

Black O Shape Ring Seal with Different Hardness and Sizes

Shanghai Qinuo offers black rubber O-ring inquiries in AS568, metric and custom sizes. Specify the dash number or inside diameter and cross-section with tolerances. Select the compound and hardness for the actual oilfield fluid, temperature and gland design; special industry qualifications require the exact compound documentation.

Item	Value
Place of Origin	China, Shanghai
Brand Name	SHQN
Processing Service	Moulding
Product Name	O-ring
Material	Silicone Rubber, EPDM, NBR, FKM, HNBR, NR
Color	Black
Application	Widely Used
Quality	High-Quality
Hardness	Selected Shore A hardness and tolerance by compound specification
MOQ	1000pcs
Service	OEM, ODM, Customized
Sample	Available
Delivery Time	10-15 Days

Oil Resistance

NBR oil compatibility depends on fluid formulation, additives and temperature. Provide the exact oil and cleaning fluids for compound review.

High Hardness

Our production process features high specification grinding and compression molding machines for precise results.

Variety of Colors

We can produce custom colors according to customer requirements.

Rubber O-Rings Specifications

• Material: Silicone/FKM/NBR/HNBR/FVMQ/EPDM
• Standard: Metric/AS568
• Color: Black or custom color
• Hardness: select Shore A hardness and tolerance for the specified compound and gland

Capsulated Rings

• Encapsulated silicone or FKM core; confirm actual jacket polymer and construction
• Hardness: 70 duro
• Color: Black or red

Coating Rings

• Material: PTFE coating rubber
• Hardness: 60-90 Shore A
• Color: Custom colors available

Company Profile

Shanghai Qinuo Industry Co., Ltd was established in 2013 at Shanghai Free Trade Zone. We are a professional rubber seal manufacturer specializing in the Oil & Gas field. Qinuo is a high-tech enterprise integrating R&D, production and sales. Since its inception, we have adhered to the "Quality for Survival, Innovation Competes For Development" concept, continuously developing and innovating to earn a strong reputation both domestically and internationally.

Under Shanghai Qinuo, we have a wholly-owned factory in Nantong City - Nantong Ruowei Seal Technology Co., Ltd, located just one hour from Shanghai Pudong Airport or Shanghai Sea port for quick delivery. With more than 30 rubber vulcanizing machines and relevant equipment, we can produce over 20 kinds of rubber rings and other rubber products to meet customer demands. Our monthly rubber processing capacity reaches 40 tons (about 80,000 lbs) and continues to grow rapidly.

Frequently Asked Questions

Can I get some samples?

Yes, samples are available. 3-10 samples or 1 pack of samples are free. Please note that shipping costs are not included. We can also use your courier account for sample shipment.

What is the price?

For bulk packing, please place the order directly. If you need custom packaging or labeling, please contact our sales team.

Can I print my logo on the product or packing?

Yes, we provide custom services. Please contact us for details.

Can you manage the shipment?

Yes, we can arrange different shipping methods according to the final packaging: by express, by air, or by sea.

Can you send the goods to Amazon warehouse?

Yes, just provide us with the exact address and we will arrange the shipment.

What is the payment method for the order?

We accept Paypal, Western Union, TT, credit card, and agreed order payment method.

What is the lead time?

For stock goods: generally within 15 days depending on quantity. For production goods: 12-25 days depending on packaging and quantity.

Black Oilfield O-Rings: Gland Clearance, Hardness and Construction

For static or moving service, provide the groove dimensions, squeeze, stretch, clearance under load and surface finish. Select hardness with the pressure cycle and motion rather than using color or a broad hardness range as a performance rating.

Identify service fluid, gas composition, temperature peaks and decompression conditions. NBR, HNBR, FKM and other material families need compound-specific compatibility review; sour-gas qualification is not established by polymer name alone.

Molded elastomer rings, coated rings and encapsulated rings are distinct constructions. Specify the intended type and dimensions for each order line, and confirm jacket or coating details separately from core hardness.