Air Brake Diaphragm Velvac Type 12 5.5″ Diameter Brake Accessory

Description

Product Overview

The Velvac Air Brake Diaphragm Type 12 is engineered as a precision‑machined component that delivers consistent pneumatic force transfer in demanding industrial brake and clutch assemblies. Featuring a 5.5 inch (140 mm) diameter, the diaphragm is fabricated from a high‑performance rubber‑neoprene blend that combines the elasticity of rubber with the chemical resistance of neoprene, providing a balanced solution for both flexibility and durability.

Designed with a fabric‑reinforced core, the diaphragm offers enhanced tensile strength that mitigates stretching and wear over prolonged cycles. Its compact dimensions—10 x 11 x 2 inches—and lightweight construction (approximately 0.01 ounces) make it easy to integrate into existing systems without requiring extensive modifications. The exterior machined finish ensures a smooth interface with adjoining hardware, reducing friction and potential leakage points.

Velvac has incorporated a proprietary sealing technology that protects the diaphragm from oil, gas, and moisture ingress, extending service life even in harsh environments such as manufacturing plants, automotive workshops, and heavy‑equipment maintenance bays. The product meets rigorous industry standards, reflected in its ranking as a top‑selling accessory within the Industrial Brake & Clutch category on major e‑commerce platforms.

Installation is straightforward: the diaphragm mounts directly onto the brake chamber using standard fittings, and its flexible nature allows for quick alignment and secure sealing. Technicians benefit from reduced downtime and lower maintenance costs, as the component’s robust construction minimizes the need for frequent replacements.

Usage

In pneumatic brake systems, the Air Brake Diaphragm Type 12 serves as the primary force‑transmission element, converting air pressure into mechanical motion that engages the brake shoes. Its reliable performance makes it suitable for a wide range of applications, including conveyor belt brakes, forklift brake assemblies, and heavy‑duty industrial clutch mechanisms.

The diaphragm’s oil‑resistant formulation is particularly advantageous in environments where hydraulic fluids may be present, such as mixed‑use facilities that operate both pneumatic and hydraulic equipment. This resistance ensures that the diaphragm maintains its elasticity and sealing capability, preventing premature failure caused by fluid contamination.

Maintenance personnel appreciate the component’s ease of inspection; the transparent rubber‑neoprene material allows visual assessment of wear patterns, while the reinforced fabric core provides a clear indication of structural integrity. Regular checks can be performed without disassembly, enabling proactive replacement before any loss of braking efficiency occurs.

Why Choose Us

Velvac has a long‑standing reputation for delivering high‑quality pneumatic components that meet exacting industry specifications. Each Air Brake Diaphragm undergoes a multi‑stage quality assurance process, including material testing, dimensional verification, and performance validation under simulated load conditions. This rigorous approach guarantees that every unit shipped performs reliably from the moment of installation.

Our commitment to durability is reflected in the use of a rubber‑neoprene blend that offers superior resistance to temperature extremes, chemical exposure, and mechanical fatigue. The fabric reinforcement further enhances the diaphragm’s lifespan, reducing the frequency of part replacements and contributing to lower total cost of ownership for end users.

Beyond product excellence, Velvac provides comprehensive technical support and after‑sales service. Our engineering team is available to assist with installation guidance, troubleshooting, and customization options, ensuring that customers receive a solution tailored to their specific operational requirements.

Key Features

• High‑performance rubber‑neoprene blend delivers flexibility while resisting oil, gas, and moisture for extended service life.
• Fabric‑reinforced core provides superior tensile strength, preventing stretching and wear during high‑cycle operation.
• Compact 5.5 inch diameter design fits a wide range of industrial brake and clutch assemblies without extensive modifications.
• Machined exterior finish ensures smooth mating with brake chambers, reducing friction and sealing issues.
• Dedicated Velvac technical support and warranty coverage give customers confidence and reliable after‑sales assistance.

FAQ

What size brake chambers is the Type 12 diaphragm compatible with?

The Type 12 diaphragm is designed for brake chambers that accommodate a 5.5 inch (140 mm) diaphragm diameter. It fits standard industrial brake and clutch housings commonly used in conveyor, forklift, and heavy‑equipment applications.

Can this diaphragm be used in environments with hydraulic fluid exposure?

Yes. The rubber‑neoprene material is formulated to resist oil and hydraulic fluids, making the diaphragm suitable for mixed‑use facilities where pneumatic and hydraulic systems operate side by side.

How often should the diaphragm be inspected or replaced?

Regular visual inspections are recommended every 6‑12 months, depending on usage intensity. Replacement is advised if visible cracks, excessive wear, or loss of elasticity are observed, which typically occurs after several thousand operating cycles.

Is there a warranty provided with the Air Brake Diaphragm?

Velvac offers a one‑year limited warranty covering manufacturing defects and material failures under normal operating conditions. Contact our support team for warranty claim procedures and additional assistance.

What installation tools are required for mounting the diaphragm?

Installation requires standard pneumatic brake hardware, such as mounting brackets and sealing gaskets. No specialized tools are needed; a basic set of wrenches and a torque wrench are sufficient to secure the diaphragm correctly.