Rolling Diaphragm

Key Features

Leak-proof barrier provision
Withstands pressure changes
Reduces friction and wear
Longer operational lifespan
Excellent sensitivity
High-pressure resistance
Customizable to needs

At Exactseal, we specialize in the manufacture of high-quality, custom-made rolling diaphragm. These versatile sealing solutions are integral to a wide range of applications, from automotive and aerospace to industrial machinery and medical devices.

A rolling diaphragm is a flexible seal that provides a leak-proof barrier between two chambers. It’s designed to withstand pressure changes or mechanical movements without losing its shape or effectiveness. The unique characteristic of this diaphragm is its ability to roll upon itself during operation, reducing the effects of friction and wear, and ensuring a longer lifespan.

At Exactseal, we understand that each application has unique requirements. That’s why we offer custom-made diaphragms tailored to your specific needs. Our diaphragms are available in a variety of materials, including high-grade rubber, to suit different operating environments and chemical compatibilities.

Our rolling diaphragms are designed for optimal performance. They offer excellent sensitivity, allowing for precise control even under low-pressure conditions. Furthermore, their robust construction ensures they can withstand high pressures without deformation, providing reliable, long-lasting operation.

Quality is at the heart of everything we do at Exactseal. Our rolling diaphragms are manufactured under stringent quality control measures to ensure they meet the highest industry standards. We use advanced manufacturing techniques and state-of-the-art equipment to deliver products that consistently exceed our customers’ expectations.

In addition to providing superior products, we at Exactseal are committed to delivering exceptional customer service. Our team of experts is always on hand to provide technical support and guidance, helping you choose the right rolling diaphragm for your application.

Choose Exactseal for your rolling diaphragm needs and experience the difference that quality, precision, and outstanding service can make. Contact us today to discuss your requirements and discover how our custom-made rolling diaphragms can enhance your operations.


ApplicationVarious engineering applications requiring flexible seals
Product NameRolling Diaphragms
Hardness (Shore A)Typically 50-90 Shore A
MaterialSilicone, EPDM, Nitrile (Buna N), FKM (Viton), Neoprene
Fabric Types: Nylon, Nomex, Dacron, Kevlar & other fabrics
ColourVarious, commonly black or grey


Automotive brake systems
Industrial machinery controls
Aerospace hydraulic systems
Medical device actuators
HVAC system regulators
Pneumatic valve actuators

Technical Information

MaterialRubber or elastomeric compounds
Temperature Range-50°C to +200°C (depending on material)
Maximum PressureVaries depending on size and material
Durometer HardnessTypically 50-90 Shore A
Tensile StrengthVaries depending on material
Elongation at BreakVaries depending on material
Chemical CompatibilityCompatible with various fluids and environments
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