Description
Product Overview
The Velvac Air Brake Diaphragm Type 20 is engineered to meet the demanding requirements of modern industrial brake and clutch assemblies. Featuring a precise 6.5‑inch diameter, this diaphragm delivers consistent pressure distribution across the braking surface, which translates into smoother operation and reduced wear on downstream components. Its construction utilizes a high‑performance rubber‑neoprene blend that is further reinforced with a woven fabric layer, providing exceptional resistance to gas, oil, and other aggressive chemicals commonly encountered in heavy‑duty environments. The machined exterior finish ensures a perfect fit with the associated brake housing, while the compact 1 × 1 × 1 inch package dimensions make storage and inventory management straightforward. Weighing only 4.9 ounces, the unit is lightweight enough to be handled easily during installation yet robust enough to withstand the rigors of continuous use. Designed for compatibility with a wide range of industrial brake and clutch models, the Type 20 diaphragm is a versatile solution that can be deployed across multiple applications, from manufacturing equipment to material handling machinery.
![[Product front view showing all components]](https://www.emberfinds.store/wp-content/uploads/2026/07/7c01a21061a743218200caf4e8a23b8b.jpg)
Usage
In practice, the Velvac Air Brake Diaphragm Type 20 excels in environments where reliability and durability are paramount. It is ideally suited for use in pneumatic brake systems that power conveyor belts, robotic arms, and heavy‑load transport vehicles. The diaphragm’s gas‑tight seal helps maintain consistent air pressure, preventing loss of braking force that could lead to safety hazards or production downtime. Its oil‑resistant properties make it a perfect match for applications where lubrication leaks are a concern, such as in hydraulic‑assisted brake assemblies. Technicians will appreciate the straightforward installation process: the diaphragm slides into the designated chamber, aligns with the pre‑drilled mounting points, and secures with the standard retaining hardware supplied with most brake kits. Once installed, the diaphragm provides a stable interface that reduces vibration and noise, contributing to a quieter operating environment. Because the product is rated for continuous duty cycles, it can be relied upon for 24/7 operation in facilities that demand high uptime and minimal maintenance intervals.
Why Choose Us
Choosing Velvac means selecting a brand with a long history of delivering high‑quality pneumatic components to the industrial sector. Our Air Brake Diaphragm Type 20 undergoes rigorous quality control testing, including pressure endurance, temperature cycling, and chemical exposure assessments, to guarantee that each unit meets or exceeds industry standards. The rubber‑neoprene matrix is formulated to provide a balance of elasticity and strength, ensuring the diaphragm can flex under load without cracking or deforming over time. The fabric reinforcement adds an extra layer of durability, protecting the core material from punctures and abrasion. Velvac also offers comprehensive technical support; our engineering team is available to assist with fit‑verification, installation guidance, and troubleshooting, ensuring that customers achieve optimal performance from day one. In addition, the product is backed by a limited warranty that covers manufacturing defects, reflecting our confidence in the longevity and reliability of the diaphragm. When you purchase from Velvac, you receive not only a component but also a partnership dedicated to your operational success.
Key Features
- Durable rubber‑neoprene blend with fabric reinforcement for extended service life
- Gas and oil resistant composition minimizes performance loss in harsh environments
- Precise 6.5‑inch diameter ensures perfect fit for a wide range of brake housings
- Lightweight design (4.9 oz) simplifies handling and installation
- Backed by Velvac technical support and warranty for peace of mind
FAQ
What size diaphragm is needed for a typical industrial brake system?
Most standard industrial pneumatic brakes require a diaphragm with a 6.5‑inch diameter, which matches the specifications of the Velvac Type 20 model. However, it is always recommended to verify the exact dimensions in the equipment’s service manual before ordering.
Can the diaphragm be used in oil‑filled hydraulic systems?
Yes. The rubber‑neoprene blend is formulated to resist oil penetration, making the diaphragm suitable for hybrid pneumatic‑hydraulic applications where occasional oil exposure occurs.
How often should the diaphragm be inspected or replaced?
Inspection should be performed during routine maintenance cycles, typically every 12 months or after 10,000 operating hours, whichever comes first. Replacement is advised if any signs of cracking, deformation, or loss of pressure integrity are observed.
Is there a recommended torque setting for the mounting hardware?
Velvac recommends tightening the retaining bolts to a torque of 8–10 Nm (Newton‑meters). This ensures a secure fit without over‑compressing the diaphragm, which could affect its flexibility.
What warranty does Velvac provide for this product?
The Air Brake Diaphragm Type 20 carries a one‑year limited warranty covering manufacturing defects. Should a defect arise, contact Velvac customer service for a replacement or repair, subject to proof of purchase.




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