Heavy Duty Rubber Flange Gasket
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. The flange gasket molds are built to a tolerance of ±0.005mm, which ensures the holes of the flanges will be properly aligned and compliant with ASME/DIN standards.
2. A computerized visual inspection system using CCD devices is conducted to scrutinize the entire batch and detect flash and impurities, which are the most common defects.
3. We have been continuously providing world-leading companies who are influential players in different sectors such as industrial automation, automotive, energy, and medical sectors (for example, Siemens, SMC, Panasonic).
Seal Failure Due to Extrusion Under High-Pressure Conditions
Seals for industrial equipment such as heavy machinery, pump housings, or high-pressure flange connections could be exposed to very high bolt preload and also internal media pressure. The prime problem occurs when rubber gaskets are taken beyond their limits, as physically they suffer the extrusion from the flange edges similar to toothpaste left being squeezed out of a tube.
This sideways extrusion sets off a chain of disastrous effects:
Seal Failure: When one side of the gasket becomes deformed, there is a dramatic loss of contact pressure, resulting in a leak of very high velocity and sudden.
Bolt Loosening: The initial tight bolts will lose their tension when the gasket becomes thin. Thus, it will require manual re-tightening to be shut down frequently.
Safety Hazards: In case of dealing with corrosive or high-temperature media, a "blowout" as a result of extrusion is a major industrial accident.
The Yida Solution:
To tackle the extrusion problems in high-pressure environments, EDA is taking a route to solve the problem through material molecular structure and physical composite design at the same time:
1. High-Modulus Tensile Formulation
We do not go for cheap products loaded with fillers, but instead, use virgin polymers.
Main Benefit: The tensile strength is increased to more than 15 MPa (2175 psi).
Technical Principle: Possessing high tensile strength allows rubber to have excellent molecular cohesion. Thus, when the flange gasket made of rubber is subjected to the extreme lateral pressure of the medium, it is able to keep its shape due to the innate physical rigidity of rubber and therefore, effectively resist the pressure-induced "flowing" tendency.
2. Internal Fabric Reinforcement
When high pressure scenarios arise such as Class 300 or PN40 ratings, we pack high-quality fibers inside the rubber compound.
Structural Characteristics: Depending on specific requirements, there are options for embedded Nylon, Polyester, or Aramid (Nomex) fibers.
Technical Principle: This fiber interlayer is like an internal skeleton of the rubber. It tightly catches the molecules of rubber in a network, which results in excellent tensile strengths in two directions. The flange rubber washer stays stable in form even when a very high bolt tightening force is applied which essentially prevents extrusion occurring.
Full-face flange gasket specifications:
| Attributes | Specifications & Details |
| Processing Service | Cutting, full-roll sheeting, die-cutting/punching, and molded forming; adhesive backing available |
| Brand Name | Yida / EDA |
| Customization Service | Customizable inner/outer diameters, thickness, and hole spacing; heavy-duty/thickened versions and specialized oil/corrosion-resistant models available; customization based on drawings or samples supported. |
| Color | Material Options |
| Material Options | NBR (Nitrile Rubber), EPDM, FKM (Fluororubber), SBR, Neoprene |
| Standards Compliance | ANSI/ASME B16.21, DIN 2690, EN 1514-1, JIS B2404 |
| Pressure Rating | Class 150, Class 300; PN10, PN16, PN25, PN40 |
| Temperature Range | -40°C to +250°C (-40°F to +482°F), depending on material |
| Hardness | 60 - 80 Shore A (adjustable based on application) |
| Thickness | 1.5mm (1/16"), 3.0mm (1/8"), 6.0mm (1/4"), or custom |
| Gasket Type | FF (Full Face), RF (Raised Face), custom shapes |
| Tensile Strength | ≥ 10 - 15 MPa (heavy-duty grade) |
| Compression Set | ≤ 20% (optimized for long-term sealing) |
| Executive Standard | US Standard: ANSI/ASME B16.21 |
| German/European Standard: DIN 2690, EN 1514-1 | |
| Japanese Standard: JIS B2404 | |
| Chinese National Standard: GB/T 9126 | |
| Performance Characteristics: | 1. High-Pressure Load Bearing: Features substantial thickness and high density; withstands high-pressure surges without flattening or deforming. |
| 2. Tight Sealing: Achieving a tight seal between the flanges not only helps to ensure a close fit but also makes the seal resistant to the passage of water vapor, oil/gas, and process media. As a result, leakage and seepage are kept to the minimum. | |
| 3. Aging Resistance & Durability: Withstands temperature extremes, weathering, and compression; resists aging and cracking during long-term outdoor or industrial use. | |
| 4. Cushioning & Vibration Dampening: Effectively absorbs equipment vibration, reducing the risk of loosening or leaks at flange connections. | |
| 5. Easy Installation: Because the flange hole spacings are standardized, that means steel frames can be quickly aligned with bolts; also provides great through compatibility." | |
| Main Application Areas: | Flange joints to be used in industrial chemical piping and water supply/drainage systems on a large scale. |
| Oil and gas pipelines require flange sealing just as much as heavy-duty hydraulic machinery. | |
| Sealing solutions for water pumps, valves, pressure vessels, and large machinery units. | |
| Waterproofing and leak prevention for power plants piping, mines, heavy industrial machinery. | |
| Flange joint sealing for municipal engineering projects and large-scale HVAC equipment. | |
| Warranty | If storage conditions are met (product temperature <30°C, relative humidity <70%, protected from light), we will replace free of charge any unopened item that stops working due to material aging - as long as the failure is not due to human error and this is confirmed after inspection - for up to three years after the delivery date. Failures caused by illegal installation or use beyond the specified scope of the warranty will not be covered. |
| Production Capacity | Monthly production exceeds 300 tons. |
| Lead Time | For standard sizes, the lead time is 15 days after order confirmation. The average production cycle for prototypes or first-article samples is 1–2 weeks; if mold development is involved, the production mold takes 10 days to manufacture; and the average lead time for mass production following sample approval is 2–3 weeks. |
| Packaging | Packed in a PE bag, then placed in a carton |
| Selling Units | Single item / 1 pc |
| Single Package Size | As per the buyer's request |
| Single Gross Weight | As per the buyer's request |
| Shipping Method | By sea, air, or express |
| Port of Loading | Dalian Port, or as per the buyer's request |
| Certificates | IATF 16949 Automotive Quality Management System |
| AS9100D Aerospace Quality Management System | |
| ISO 14001 | |
| ISO 9001 | |
| RoHS 2.0 |
Applications:
Industrial chemical pipelines and large-scale flange connections for water supply and drainage.
Oil and gas transmission lines and flange sealing for heavy-duty hydraulic equipment.
Sealing for pumps, valves, pressure vessels, and large machinery units.
Waterproofing and leak prevention for heavy-duty piping in power plants, mines, and heavy industrial machinery.
Flange joint sealing for municipal engineering projects and large-scale HVAC equipment.
Automation
Automotive
Aerospace
Semiconductor
New Energy
Medical
About Yida:
Established in 1993, Dalian Yida Precision Rubber Products Co., Ltd. was founded in 2006. It is recognized as a national high-tech enterprise equipped with core rubber technologies and the ability to independently research, develop and manufacture products. In fact, it was the first private company in Dalian to be awarded a national-level management achievement. The firm occupies 57,000 m² and has a building area of 36,000 m². It runs six subsidiaries and has over 450 employees. Besides keeping three production bases in Dalian, China, we also have a factory abroad in Vietnam and R&D and sales centers in Shanghai and Japan. The production bases in Dalian can produce 300 tons per month. High-quality sealing products from Yida have reached major industrial markets worldwide, such as the United States, Germany, Saudi Arabia, Russia, Japan, and France.
Certifications:
Yida holds certifications for IATF16949, ISO9001, ISO14001, AS9100D, RoHS 2.0, UL, and NSF/WRAS.
Certificate Numbers:
AS9100D & ISO 9001:2015
Manufacturing Centers:
Rubber Compounding & Vulcanization: Leveraging over 1,000 proven formulas and imported raw rubber, combined with a barcode-based error-prevention system, we ensure consistent physical properties across every batch, delivering excellent aging resistance and long-term stability.
Precision Mold Making: We use Japanese Makino machines for precision mold making. This enables us to keep the mold tolerances within ±0.005 mm, which is very important for achieving a very precise fitment, especially in the case of complex structures.
Sophisticated molding automation: We have full automation in our compression and injection molding production lines. Our systems not only produce with a high level of consistency but also with high efficiency and the ability to mass produce.
Rubber compounding
Vulcanization
Mold
Injection molding
Testing Center:
Materials analysis equipment
Automatic inspection equipment
About Yida:
Yida, initially set up in 1993 and later, Dalian Yida Precision Rubber Products Co., Ltd. in 2006, has the honour of the experience in the industrial rubber field for more than 20 years. The main office of the company is located in Dalian, where 450 staff members are working, and the company itself runs a factory of 37,000 m² area. Also, Yida has formed the factories in Vietnam and Japan. With more than 1,000 recorded compound formulation products available and the monthly manufacturing capacity of 300 and more tons, the factory can ensure an uninterrupted and large-scale supply. Their outputs have been exported to America, Germany, Saudi Arabia, Russia, Mexico, Japan, Thailand, the UAE, France, and Viet Nam.
Partners:
Yida continues to offer reliable products and services for customers around the world in diverse sectors including industrial manufacturing, automation control, renewable energy, electrical equipment, and automotive parts. We've supported many of our partners internationally for a long time. Our clients represent a wide range of industries such as automotive electronics, industrial automation, intelligent manufacturing, new energy, power equipment, and fluid control among which are Delphi Technologies, Alpine Electronics, Nidec, Siemens, Panasonic, Omron, SMC Corporation, CATL, China Electric Equipment Group & Rongke Power.
After-Sales Commitment:
We offer a 3-year extended warranty for our products. If a sealed product is found to have material degradation or failure within three years of the delivery date and the product has been stored under the recommended conditions (temperature < 30°C, humidity < 70%, away from direct light), Yida will, after confirmation, provide a full replacement free of charge.
Exhibition Highlights:
2025 Dalian International Industrial Expo
Guided by the vision Leading Sealing Innovation, Connecting the World, Yida showed how digital factories are capable of very quickly changing their working modes to cope with multiple complex conditions. We met up with 900 significant players of the industry at the event whose goal was to carve out resilient supply chains.
2025 Shanghai Long-Duration Energy Storage Technology Exhibition
Dedicated to the "carbon neutrality" cause, Yida developed a new series of sealing products that can endure very high temperatures and strong chemicals without getting damaged. These products perfectly fit the very strict and long-lasting sealing requirements of energy storage systems that can operate for extended periods, thereby guaranteeing the stable functioning of the power systems of the future.
