Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Rubber Diaphragm for Mechanical Sealing and Pressure Transmission
High - Performance Sealing Component for Hydraulic, Pneumatic and Automotive Systems
Our premium diaphragm is a core component engineered for hydraulic, pneumatic, and automotive systems, available in high-grade materials like HNBR (Hydrogenated Nitrile Butadiene Rubber), nitrile rubber, fluororubber, and polyurethane. It delivers exceptional sealing, pressure transmission, and medium isolation.
It prevents fluid/gas leakage, ensures stable pressure transfer for brake/clutch operations, and separates different media to avoid interference. Boasting excellent wear resistance, temperature adaptability, and durability (HNBR excels in oil/heat resistance), it guarantees long-term reliable performance even in harsh conditions.
Ideal for heavy-duty machinery, vehicle braking systems, and household appliances, it boosts efficiency, cuts maintenance costs, and ensures safety—your top choice for tailored high-performance sealing solutions.
5.0
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Product Advantages
Forever Seals diaphragms stand out with superior performance. Crafted from high-grade materials such as HNBR (Hydrogenated Nitrile Butadiene Rubber), nitrile rubber, fluororubber, and polyurethane, they offer exceptional oil resistance (with HNBR being particularly outstanding), heat endurance, and wear resistance. These components ensure long-term reliability, reducing the frequency of replacements and maintenance costs. Through precise manufacturing processes, they fit perfectly into various systems, minimizing the risk of fluid or gas leakage and guaranteeing stable operation.
2. Working Principle
The diaphragm operates based on the principle of elastic deformation. In hydraulic or pneumatic systems, when pressure changes occur, the flexible diaphragm deforms to evenly transmit pressure to connected components, enabling functions like brake activation. At the same time, its tight structure isolates different media (for example, separating vacuum chambers and air chambers in brake systems), preventing cross-contamination and ensuring that each system component works independently and efficiently.
3. Product Details
Material Selection: Each type of material undergoes rigorous testing to meet industry standards. HNBR is suitable for harsh oil and high-temperature environments, fluororubber provides strong chemical resistance, and polyurethane offers enhanced wear performance.
Structural Design: Some diaphragms are equipped with a metal skeleton or fiber fabric reinforcement. This design enhances structural stability and load-bearing capacity without compromising the diaphragm's flexibility.
Dimensional Precision: Manufactured using advanced molding technology, the dimensional accuracy of the diaphragms reaches ±0.02mm, ensuring compatibility with a wide range of equipment models.
4. Application Range
The diaphragms are widely applied in the following fields:
Automotive industry: Brake systems, clutch operating systems, and fuel delivery systems.
Heavy machinery: Hydraulic cylinders in construction equipment and pressure transmission systems in mining machinery.
Household appliances: Sealing components in dual-cylinder washing machines and pressure valves in water heaters.
Industrial equipment: Pneumatic valves, hydraulic pumps, and chemical storage tanks.
5. FAQ
Q1: Can the diaphragm be customized for specific equipment?
A1: Yes. Forever Seals provides customized solutions. We adjust the material, size, and structure of the diaphragm based on the operating conditions and technical requirements of your equipment.
Q2: What is the service life of the HNBR diaphragm?
A2: Under normal working conditions (temperature range: -40℃ to 150℃, in oil-free or general oil environments), the HNBR diaphragm can have a service life of 3-5 years. The actual service life may vary depending on the frequency of use and pressure intensity.
Q3: How to confirm the right diaphragm model for my system?
A3: Please share the working pressure of your system, the type of medium used, and the model of your equipment with our team. We will then recommend the most suitable diaphragm model for you.
6. Company Selling Points
Professional Expertise: With over 15 years of experience in the manufacturing of sealing components, Forever Seals has a team of engineers specializing in diaphragm design and material research.
Quality Assurance: All products undergo strict quality inspections, covering every stage from raw material testing to the performance verification of the final product. Our products comply with ISO 9001 and SAE standards.
Customer-Centric Service: We offer fast delivery (7-15 days for standard products) and 24/7 technical support. If you encounter any issues during the use of our products, our after-sales team will respond within 4 hours.
{{item.score}} Stars
{{item.pre}}%
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
{{itemAttr.params_key}}: {{itemAttr.params_value}}
Get In Touch With Us
We are committed to meeting the diverse needs of our global customers through innovation and continuous improvement.
Need more information?
If you didn't find what you need, you can send an inquiry through our contact form.
Please fill in the form below.
Quick Links
Products
Contact Us