KEDIAS Diaphragm

Parker Seals: Your Professional Kedias Diaphragm Supplier

Tian Jin Natebell Sealing Technology Co.,ltd. was founded in 2009, mainly engaged in construction machinery, excavators, hydraulic hammers and other sealing products. Annual output value of 100 million yuan. Registered trademarks are KEDIAS, B.K.S brand, but also the NOK contracted dealers. We have developed more durable and suitable sealing materials for various harsh working conditions, focusing on providing you with comprehensive hydraulic sealing system solutions. Additionally, we have a perfect, scientific quality management system, as well as proper after-sales service. As one of the leading oil seal manufacturers and suppliers in China, all of our customized products are with high quality and competitive price. We are your trusted partner, providing high-end products and making you different!

Why Customers Choose Us？

High Quality
Based on material development, combined with decades experience on seals design, production and application, all products are verified with professional laboratory and bench testing. We have a perfect QC system for the perfect products. A team who will detect the product quality and specification piece carefully, monitoring every production process until packing is complete, to ensure product safety into container. Additionally, we have independently developed the KEDIAS brand Breaker hammer seal and jointly developed a sealing structure with high temperature resistance, focusing on providing you with comprehensive hydraulic sealing system solutions.

Professional Team
At present, our company has more than 70 employees, including 10 graduate degree, more than 40 bachelor's degree. With the Hebei University of Technology School of Materials, we jointly develop materials with high temperature, super wear-resistant, longer service life sealing structure.

Advanced Equipment
Our company is a comprehensive enterprise with perfect sealing research and development and production capacity. The company has a total of 24 turning and sealing machine tools, 15 injection molding machines, 6 PTFE hydraulic presses, various rubber vulcanizing machines, and the company's independently developed guide belt production line. Also we have clear division of labor, strict quality inspection and a full set of storage system.

Rich Experience
Parker Seals has involved in the research and development, production, manufacturing and sales of construction machinery seals more than 15 years. We have become experts in hydraulic breaker parts and excavator components. Rely on our knowledge and expertise to find the right parts for your equipment.

Wide Market
At present, we have more than 3,300 dealers nationwide, and now cooperate with XCMG, SANY ZHONGLI, EDDIE PRECISION, BELITE, BEST, DAEKKO and other large construction machinery Original Equipment Manufacturer. And exported to the Middle East, Southeast Asia, Africa and other 40 countries and regions.

Superior Service and Logistics
We understand the importance of timely repairs and maintenance. Our customer service team is available and dependable to provide support and solutions to customers at all times. Benefit from our fast and reliable delivery service, ensuring that your hydraulic breaker parts and excavator components arrive on time.

Brief Introduction to Kedias Diaphragm

The diaphragm is a flexible, rubber component that is used to separate the hydraulic fluid from the compressed gas in the accumulator. It is designed to withstand high pressure and is critical to the proper operation of the hydraulic breaker. It accomplishes this by absorbing impact forces and vibrations generated during the crushing operation. This not only extends the lifespan of the crusher's internal parts but also enhances the overall performance and efficiency of the machine. If the diaphragm becomes damaged or worn, it can cause the accumulator to malfunction, and it will need to be replaced.

Benefits of Our Kedias Diaphragm

01/

Premium Material
Crafted from high-quality, resilient materials such as rubber or polyurethane, ensuring optimal performance in challenging rock-breaking conditions.

02/

Precision Manufacturing
Meticulously manufactured using advanced processes, including precision molding and rigorous quality checks, guaranteeing a perfect fit and extended lifespan.

03/

Resilience to Extreme Conditions
Designed to withstand the harsh conditions of hydraulic rock breakers, our diaphragms exhibit exceptional resistance to wear, tear, and hydraulic fluid, ensuring longevity.

04/

Effective Pressure and Vibration Absorption
The diaphragm plays a crucial role in the hydraulic system, effectively absorbing pressure and vibrations, contributing to the overall efficiency and reliability of the rock breaker.

05/

Durable and Wear-Resistant
First-rate materials enhance resistance to wear, tear, and hydraulic fluids, ensuring the diaphragm withstands the demands of heavy-duty applications.

06/

Contribution to Hydraulic System Stability
The diaphragm's role in maintaining hydraulic pressure enhances the stability and performance of the entire hydraulic system.

Features of Rubber Diaphragms

Customizable.
Instant response to pressure changes.
Bonding between rubber and metal.
Insulation.
Broad temperature operating range.
Customizable thicknesses to provide maximum sensitivity.
Extended lifecycle under high-temperature exposure.
Long stroke capability.
Operate under extreme pressure.
Meets sanitary and hygienic requirements.
Resistant to chemicals and abrasives.

Main Functions of Diaphragm

Sealing
The primary function of the diaphragm is to provide a seal between the hydraulic fluid and the working components of the breaker hammer. It prevents leakage of hydraulic oil and maintains the pressure required for the hammer's operation.

Movement Conversion
Diaphragms can convert pressure or force into movement. In actuators or pumps, for example, the diaphragm acts as a movable wall that displaces fluid when pressure is applied. This movement can be harnessed to perform tasks such as opening valves, pumping liquids, or actuating mechanical parts.

Transfer of Hydraulic Pressure
The diaphragm acts as a barrier between the hydraulic fluid and the piston or striking mechanism of the breaker hammer. When hydraulic pressure is applied, the diaphragm transmits that pressure to the piston, causing it to move and deliver the impact force to the working tool.

Pressure Control and Transmission
In pressure-related applications, diaphragms can be used to control or transmit pressure. When pressure is applied to one side of the diaphragm, it deforms, allowing the pressure to be transmitted to another chamber or system. This function is crucial in hydraulic and pneumatic systems, where precise pressure control is essential.

Shock Absorption
The diaphragm also plays a role in absorbing and dampening the shock and vibrations generated during the operation of the breaker hammer. It helps reduce the impact on the internal components and provides a smoother operation.

Flexibility and Durability
The diaphragm needs to be flexible enough to accommodate the movement of the piston while maintaining its integrity and sealing properties. It should be able to withstand repeated cycles of pressure and movement without deforming or failing.

The Common Applications of PU Rubber Diaphragms

Hydraulic Systems

PU rubber diaphragms are widely used in hydraulic systems, such as pumps and actuators, to separate the fluid chamber from the driving mechanism. They act as flexible seals, enabling the efficient transfer of fluid power.

Pneumatic Equipment

In pneumatic systems, PU rubber diaphragms are employed in air compressors, valves, and actuators to control the flow of compressed air. Their flexible nature allows for precise control and sealing.

Vibration Isolation

PU rubber diaphragms are also used in vibration isolation systems to absorb and dampen vibrations. They can be found in automotive suspensions, industrial machinery, and other applications where vibration reduction is crucial.

Chemical Processing

PU rubber diaphragms are resistant to many chemicals and can be used in processing equipment that handles corrosive or abrasive materials. Their durability ensures reliable performance even in harsh environments.

Oil and Gas Industry

In the oil and gas industry, PU rubber diaphragms are often used in metering pumps, pressure regulators, and other equipment that requires precise fluid control.

Medical Devices

PU rubber diaphragms are also used in medical devices, such as respirators and infusion pumps, due to their biocompatibility and ability to withstand repeated flexing and stretching.

Rubber Diaphragm Selection Guide

Now, a rubber diaphragm may be a very small part of your expansive industrial setup. However, when this is not chosen right, you may have to end up with inefficient processes and damage to expensive equipment. So, before you decide on the type of diaphragm needed, try to answer the below questions:

What is the maximum temperature/pressure change the diaphragm has to handle?
Will your process include abrasive or chemical media that can damage the diaphragms?
How much force will the diaphragm be exposed to?
Are there any sanitary standards to be kept in mind?
Would you require higher flex lives?

Some General Steps to Guide You Through the Installation Process

Prepare the Work Area
Ensure that the work area is clean and free from any debris or contaminants that could affect the diaphragm's performance. If necessary, clean the surrounding components and surfaces.

Inspect the Diaphragm
Before installation, inspect the diaphragm for any signs of damage or defects. Ensure that it is the correct size and type for your specific application. If there are any issues, replace the diaphragm with a new one.

Remove the Old Diaphragm
If you are replacing an existing diaphragm, carefully remove the old one while taking note of its orientation and any specific installation instructions provided by the manufacturer.

Prepare the Diaphragm and Components
If required, lubricate the diaphragm or the sealing surfaces with a compatible lubricant recommended by the manufacturer. Be cautious not to use any lubricant that may degrade the diaphragm material.

Position the Diaphragm

Place the diaphragm in its designated location, ensuring proper alignment and orientation as specified by the manufacturer. Take care to avoid stretching or distorting the diaphragm during installation.

Secure the Diaphragm

Depending on the design of the equipment, secure the diaphragm in place using appropriate fasteners, clamps, or retaining rings. Follow the manufacturer's instructions for the specific installation method.

Test for Proper Functioning

After installation, perform a functional test to ensure that the diaphragm is operating correctly. Check for any leaks, abnormal pressure fluctuations, or other issues that may indicate improper installation.

Tips on Diaphragms Storage

Clean and Dry
Before storing the diaphragms, ensure they are clean and free from any dirt, debris, or contaminants. Wipe them with a clean cloth if necessary. Additionally, make sure the diaphragms are completely dry to prevent the growth of mold or mildew.

Avoid Sunlight and Heat
PU rubber diaphragms should be stored in a cool, dry place away from direct sunlight and sources of heat. Exposure to excessive heat or UV radiation can cause the diaphragms to degrade or lose their elasticity.

Protect from Ozone and Chemicals
PU rubber diaphragms should be stored away from ozone-generating equipment and chemicals that may react with or deteriorate the material. Ozone can cause cracking and degradation of the diaphragm, while certain chemicals can lead to swelling or other forms of damage.

Keep Separate and Flat
Store PU rubber diaphragms separately from other components or materials to avoid contact that could cause contamination or damage. It is advisable to stack diaphragms flat or hang them vertically to prevent deformation or distortion.

Use Suitable Packaging
If possible, store PU rubber diaphragms in their original packaging or use suitable packaging materials such as plastic bags or containers that provide protection from dust, moisture, and other potential contaminants.

Rotate Stock
If you have a stock of PU rubber diaphragms, it is recommended to implement a first-in, first-out (FIFO) system to ensure that older diaphragms are used before newer ones. This helps prevent the diaphragms from sitting in storage for extended periods, which can lead to degradation.

Regular Inspections
Periodically inspect the stored diaphragms for any signs of damage, deterioration, or contamination. If any issues are detected, take appropriate measures such as cleaning, repairing, or replacing the diaphragms as necessary.

Maintenance of PU Rubber Diaphragms

Regular Inspection

Conduct routine inspections of PU rubber diaphragms for signs of wear, damage, or deterioration. Look for any visible cracks, tears, or deformation that may compromise their integrity.

Cleaning

Keep diaphragms clean from dirt, debris, and contaminants. Use a mild cleaning solution and ensure that no abrasive materials are used during the cleaning process. Proper cleaning helps prevent premature wear.

Lubrication

Check if lubrication is recommended for PU rubber diaphragms. If specified by the manufacturer, use compatible lubricants to ensure smooth operation and reduce friction.

Storage Guidelines

Store spare PU rubber diaphragms in a clean, dry, and controlled environment. Follow the manufacturer's guidelines for temperature and humidity to prevent degradation. Protect diaphragms from exposure to sunlight, ozone, and chemicals.

Avoiding Excessive Stress

Operate hydraulic breakers within recommended parameters to avoid subjecting diaphragms to excessive stress. Misuse or overloading can lead to premature wear and reduce the diaphragm's lifespan.

Prompt Replacement

Replace PU rubber diaphragms promptly if any signs of damage or wear are detected during inspections. Delayed replacement can lead to decreased performance and potential damage to other components.

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Ultimate Guide

Q: Can PU rubber diaphragms be used in both dynamic and static applications?

A: Yes, PU rubber diaphragms are suitable for both dynamic and static applications. They can handle movements and vibrations in dynamic applications, as well as provide effective sealing in static applications.

Q: What are the benefits of using PU rubber diaphragms over other materials?

A: PU rubber diaphragms offer several advantages over other materials. They have excellent abrasion resistance, high tear strength, good flexibility, and resistance to oils, fuels, and chemicals. PU rubber diaphragms also have a wide operating temperature range and can withstand harsh environmental conditions.

Q: Are PU rubber diaphragms suitable for food-grade applications?

A: Yes, PU rubber diaphragms can be manufactured using food-grade materials and meet the necessary regulatory requirements. These diaphragms are specifically designed for applications in the food and beverage industry, where hygiene and safety are critical.

Q: What are the recommended maintenance practices for PU rubber diaphragms?

A: Proper maintenance of PU rubber diaphragms includes regular inspections to check for signs of wear or damage, cleaning the diaphragm and the surrounding components, and ensuring that the hydraulic system is operating within the recommended parameters. Following the manufacturer's maintenance guidelines is essential for maximizing the diaphragm's lifespan.

Q: Can PU rubber diaphragms be used with aggressive or corrosive fluids?

A: PU rubber diaphragms have good resistance to many fluids, but their compatibility with aggressive or corrosive fluids may vary. It is crucial to consult the manufacturer's specifications or seek expert advice to ensure the diaphragm's compatibility with specific fluids.

Q: Are there any special considerations for installing PU rubber diaphragms?

A: When installing PU rubber diaphragms, it is important to ensure proper alignment and positioning to avoid stress concentrations. Follow the manufacturer's installation instructions, use appropriate tools, and ensure that the diaphragm is not subjected to excessive stretching or compression during installation.

Q: Can PU rubber diaphragms be recycled?

A: PU rubber diaphragms can be recycled, but the recycling options may vary depending on the specific composition of the PU material used. Contact local recycling facilities or consult with the manufacturer to determine the best recycling practices for PU rubber diaphragms.

Q: What factors should I consider when selecting PU rubber diaphragms?

A: When selecting PU rubber diaphragms, consider factors such as the operating pressure and temperature range, compatibility with the hydraulic fluid, the required size and shape, the specific application requirements, and the quality and reputation of the manufacturer.

Q: What are the different types of PU rubber diaphragms?

A: PU rubber diaphragms can be categorized into various types based on their design and construction. Some common types include flat diaphragms, rolling diaphragms, convoluted diaphragms, and sandwich diaphragms. The choice of diaphragm type depends on the specific application and performance requirements.

Q: How can I determine if a PU rubber diaphragm is compatible with my hydraulic system?

A: To ensure compatibility, consult the manufacturer's guidelines or technical specifications for the hydraulic system and the diaphragm. Consider factors such as the hydraulic fluid used, operating pressure and temperature, and any specific requirements or recommendations provided by the manufacturer.

Q: Can PU rubber diaphragms be used in high-pressure applications?

A: Yes, PU rubber diaphragms are often used in high-pressure applications. They are known for their ability to withstand high pressures and maintain their sealing properties. However, it is important to select diaphragms that are specifically designed and rated for the desired pressure range.

Q: What are some common signs of diaphragm failure or wear?

A: Signs of diaphragm failure or wear can include leakage or loss of pressure, reduced performance or efficiency, visible cracks or tears on the diaphragm surface, deformation or distortion, and abnormal noise or vibrations during operation. Regular inspections can help detect these signs early.

Q: Can I use aftermarket or generic diaphragms instead of OEM diaphragms?

A: While aftermarket or generic diaphragms may be available, it is generally recommended to use genuine OEM (Original Equipment Manufacturer) diaphragms. OEM diaphragms are specifically designed and tested for compatibility and performance in the intended hydraulic system, providing better reliability and longevity.

Q: Are there any special considerations for storing spare PU rubber diaphragms long-term?

A: When storing spare PU rubber diaphragms for an extended period, it is important to follow proper storage guidelines. Store them in a clean, dry environment, away from direct sunlight, ozone, and chemicals. Protect them from physical damage and maintain their original packaging if possible.

Q: What is a PU rubber diaphragm?

A: A PU rubber diaphragm is a component made from polyurethane (PU) rubber material. It is designed to seal, transfer pressure, absorb shocks, and provide flexibility in hydraulic systems, including hydraulic breakers.

Q: What are the advantages of using PU rubber diaphragms?

A: PU rubber diaphragms offer several advantages, such as high durability, resistance to wear and tear, excellent flexibility, good chemical resistance, and the ability to withstand high pressures and temperatures.

Q: What are the common applications of PU rubber diaphragms?

A: PU rubber diaphragms find applications in various industries and technologies. They are commonly used in hydraulic systems, pneumatic systems, pumps, valves, actuators, pressure regulators, and other fluid control devices.

Q: Are PU rubber diaphragms compatible with all hydraulic fluids?

A: PU rubber diaphragms are compatible with a wide range of hydraulic fluids, including mineral oils, synthetic oils, and water-based fluids. However, it is important to consult the manufacturer's guidelines or technical specifications to ensure compatibility with the specific hydraulic fluid used in your system.

Q: Can PU rubber diaphragms be customized for specific applications?

A: Yes, PU rubber diaphragms can be customized to meet specific application requirements. Manufacturers can provide diaphragms with different sizes, shapes, thicknesses, and hardness levels to suit the needs of various hydraulic systems.

Q: Can PU rubber diaphragms be repaired if they are damaged?

A: In general, PU rubber diaphragms are not repairable. If a diaphragm is damaged or worn out, it is recommended to replace it with a new one. Attempting to repair a damaged diaphragm may compromise its performance and integrity.

As one of the leading kedias diaphragm manufacturers and suppliers in China, we warmly welcome you to buy discount kedias diaphragm in stock here and get pricelist from our factory. All customized products are with high quality and competitive price.

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