FDA VMQ Red Silicone Rubber Medical O-Rings with Excellent Tear Resistance
VMQ O-rings, also known as silicone rubber O-rings, are high-performance elastic sealing components widely used across food, medical, and electrical equipment industries. VMQ material is distinguished by its outstanding resistance to extreme high and low temperatures, excellent flexibility, superior electrical insulation properties, and non-toxic characteristics.
Manufactured from premium silicone raw material, our VMQ O-rings maintain stable elasticity and sealing performance across a wide temperature range from -60°C to +220°C. They feature excellent anti-aging, anti-ozone, and weather resistance. VMQ silicone O-rings remain soft and flexible after long-term use with low compression set. Please note: VMQ is not recommended for applications involving mineral oil, fuel, or concentrated solvent environments.
We supply standard-size VMQ O-rings, and custom specifications including size, hardness, and color are available. In addition to VMQ silicone, we also provide other rubber O-rings such as FKM (Viton), NBR, EPDM, and HNBR to match different working conditions.
Type: O-Ring
Size: ID × CS, OD = ID + 2 × CS
What Is an O-Ring?
An O-ring is a simple and versatile ring-shaped packing or sealing device with a circular cross-section (from which the "O" in its name is derived). The purpose of using O-ring seals is to prevent leakage and loss of liquids or gases. They offer simplicity, convenience, and require minimal installation space. As long as the groove design and material selection are correct, and the operating conditions are within the temperature range of the rubber material, the seal can provide a long-term sealing effect in static or dynamic applications.
The size of an O-ring is determined by the inner diameter (ID) and the wire diameter (CS). O-ring size calculation: outer diameter = inner diameter + 2 × wire diameter (OD = ID + 2 × CS).
O-Ring Advantages
- Outstanding high and low temperature resistance: -60°C to +220°C
- Excellent electrical insulation properties
- Superior anti-ozone, weather resistance, and anti-aging performance
- Non-toxic and tasteless — suitable for food-grade and medical applications
- Good elasticity and low compression set for stable sealing
- Multiple hardness and color options available for customization
O-Ring Technical Requirements
- Appearance meets GB/T 3452.2-2007
- Material meets HG/T 2579-2008
- Size meets GB/T 3452.1-2005
All our products are ROHS and REACH compliant (we mainly export products to the USA and Europe markets).
O-Ring Features
- Good sealing solution with long service life
- Easy installation reduces risk
- Works in various media based on different elastomer materials
Product Specifications
| Product Name |
Silicone Rubber O-Ring Seals |
| Materials |
NBR, HNBR, EPDM, SILICONE, VITON, FLS, FFPM, PTFE |
| Temperature Range |
NBR (-40 to 120°C), FFKM (-20 to 320°C), Viton (-20 to 200°C), Silicone (-70 to 220°C), EPDM (-50 to 150°C), PU (-40 to 90°C) |
| Features |
Resistance to high pressure, oil, weather, abrasion, solvent, high temperature; abrasion resistant, aging resistant, insulation, acid and alkaline resistant |
| Certificate |
ISO 9001:2008 |
| Hardness |
30–90 Shore A |
| Color |
Red, Black, White, Blue, Green, Clear, etc. |
| Size |
Any size; customized/standard and nonstandard |
| Sample Time |
If in stock, within 3 days after payment |
| Delivery Time |
7–15 days by express after payment; 10–20 days by ship |
| Shipping |
Small quantity: UPS/FedEx/DHL express; Large quantity: by Air/Sea |
| Customized |
OEM & ODM welcomed |
| Packing |
Plastic bag & carton box, or according to your requirements |
| Application |
Chemical industry, petroleum industry, medical technique, food industry, sewage-disposal industry, steel industry, semiconductor industry, and more |
Certifications
We hold the following certificates: ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, IATF, FDA, REACH, ROHS, SGS, and more.
Custom Color Options
For the color of O-rings, we can manufacture according to customers' requirements. The table below shows the colorful O-rings we have made. If you need colored O-rings, please provide the Pantone number.
Our Product Range
We can also produce a wide variety of rubber seals for different industries:
- Automotive Rubber Seals
- Connector Rubber Seals
- Power Tool Rubber Seals
- Valve Rubber Seals
- Pipe Rubber Seals
- Semiconductor Rubber Seals
- Hydraulic & Pneumatic Rubber Seals
- Pump Rubber Seals
- Oil and Gas Seals
- Food Grade Rubber Seals
- Medical Rubber Seals
- Chemical Equipment Rubber Seals
Our Factory
Rui Chen Sealing Co., Ltd. was established in 2006 and now has more than 200 staff members. The company has two branches in Guangdong and Jiangxi provinces: Dongguan Rui Chen Sealing Co., Ltd. and Shangrao Rui Chen Sealing Co., Ltd.
In recent years, the company has been supported by the Shangrao municipal government and fully enjoys all preferential policies for the economic development zone. We always take "best quality, best service" as our mission, and make progress together with you in harmony and mutual win.
Quality Standards
Ruichen always meets our customers' requirements. To ensure we produce high-quality O-rings, our company implements the following general standards:
- Raw material incoming inspection standard: ASTM D2000 & HG/T 2579-2008 & HG/T 2811-1996
- Public O-ring dimensional tolerance: GB/T 3452.1-2005
- N-level specification for O-ring appearance quality inspection: GB/T 3452.2-2007
- Hardness measurement model: Micro O-Ring Testing (Type M system)
- Hardness using standard: ASTM D2240 Rubber Standard Test Method (Shore A)
- Sampling inspection specification: GB/T 2828.1-20
Quality Control Process
Material Inspection
All raw materials are tested before storage. A report on the corresponding material properties is issued and compared with the raw material's own property report. Only when the property values in both reports are consistent can the material be put into storage.
Model Inspection
After mold development or mold cleaning is completed on the machine, we test all specifications of the mold to ensure that each cavity meets product specifications and quality requirements.
Production Inspection
During the production process, inspection personnel conduct timely semi-finished product inspections to ensure the rationality of the technology and control the defective rate within a reasonable range.
Quality Control
The quality inspection department conducts a sampling inspection of each batch of products.
Production Full Inspection
The optical inspection machine ensures the appearance and dimensions of the product are 100% qualified.
Cooperative Partners
Ruichen has cooperated with many superior customers. We have a complete system and excellent productivity to serve you.
Why Choose RUICHEN?
Many big companies select RUICHEN for their rubber seals and customized rubber parts because we always satisfy them in quality, price, delivery, and service. At the same time, we also attach great importance to small customers in niche markets. Whether your purchase quantity is big or small, you are our valuable partner.
High Quality
We continue to manufacture high-quality products for all customers and pursue 100% customer satisfaction, which has become one of our core competencies.
Professional Expertise
We have rich experience in materials, products, and production, along with excellent international trade and language communication skills.
Best Services
From quoting, sampling, production, and shipping to after-sales, our sales team will provide you with the best service so that you can rest assured completely.
10,000+ Projects Delivered
Over 10K projects have been sent to our customers worldwide in recent years, and we have received countless positive comments.
Low Price
Our customers can obtain maximum profits through our ISO management system and intelligent manufacturing to continuously reduce costs.
Massive Capacity
Our in-house facilities allow us to get your projects done fast. Thanks to our strong relationships with rapid materials partners, our capacity is not limited.
Fast Delivery
Unlimited capacity, experienced engineers, and a flexible production system allow us to create your seals and production parts in a short period.
1,000+ Happy Customers
We aim to keep every customer happy with reliable quality, fast turnaround, and excellent services. We want all our new customers to become long-term customers.
Frequently Asked Questions
Q1: What kinds of materials can you provide?
A: NBR, EPDM, SILICONE, FKM (Viton), NEOPRENE (CR), HNBR, NR, IIR, SBR, ACM, AEM, Fluorosilicone (FVMQ), FFKM, etc.
Q2: How to select the raw compound for my application?
A: With years of experience working with a variety of materials, we can help select the material that will best suit your needs while keeping material costs in mind.
Q3: How long can we get the quote?
A: If your information is complete, we will provide the quotation within 8 hours.
Q4: Can you provide samples? Is it free or extra?
A: Yes, we can provide samples for free. Freight can be negotiated.
Q5: What is the normal lead time for product orders?
A: If in stock, generally 3–7 days; mold about 15–18 days; no mold about 25–30 days, depending on the product situation.
Q6: How to check the quality of the bulk order?
A: We have incoming inspection to control the quality of raw materials, process inspection to ensure the quality of the production process, shipping 100% full inspection, automatic inspection machine full inspection, and pre-production samples according to customer needs before mass production.
Q7: What is your standard packing?
A: Plastic bag for inner packing, carton box for outer packing. Can also be packed according to customer's requirements.
Q8: What's the payment term?
A: We accept T/T 30% deposit and 70% balance. PayPal is also acceptable.
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