Wilden offers the largest range of AODD Pump diaphragm shapes, sizes and material offerings in the industry. This means that you can get the best diaphragm for your application requirements to meet your needs for chemical compatibility, sanitary compliance, long life, optimized flow, suction lift, temperature limit, abrasion resistance and cost.

Diaphragm materials can be grouped into three categories – rubber, thermoplastic elastomer(TPE) and polytetrafluoroethylene (PTFE).

Wilden diaphragms are offered in a number of shapes, including traditional, contoured and convolute.

Reference the chart below for the full range of diaphragm options.

Wilden’s technological advancements bring better diaphragms to market. 

The latest Chem Fuse IPD (Integral Piston Diaphragm) is perfect for acids, caustics and other aggressive fluids in industrial and chemical processes.

EZ-Install are simplified convenient direct replacements for traditional diaphragms.

Full Stroke PTFE Diaphragm is for peak performance and maximum containment.

Ultra Flex is the longest lasting rubber diaphragm in the industry.

Traditional is the original diaphragm design when Wilden’s AODD was first invented.

Wilden® Integral Piston Diaphragms (IPDs) advanced one-piece design have no product entrapment areas and no potential leak point at the outer piston –  minimizing product contamination and transferring products safely and reliably with no abrasion. Quite possibly the best AODD diaphragm on the market.

• Flow Rate and suction lift is increased up to 100% compared to PTFE laminate diaphragms.
• 2X to 15X Longer life and durability by eliminating outer piston abrasion.
• Improved containment and safety when pumping valuable and dangerous fluids by eliminating potential leak point.
• Faster installation – compatible with existing shafts and supporting hardware.
• Withstands wide range of temperature limits.
• No adhesive used in diaphragm construction unlike competitive one-piece diaphragms.
• Easy cleanability due to it’s smooth, contoured shape for faster changeovers between product.

Specifications

Downloads

Wilden Chem Fuse IPD Flyer

Wilden’s EZ-Install TPE Diaphragms for AODD Pumps are convenient, simplified direct replacements for traditional diaphragms. With EZ-Install diaphragms, maintenance staff does not need to invert the diaphragm during the installation process, which greatly reduces installation time, lowers maintenance costs, enhances safety and improves uptime.

The EZ-Install diaphragms offer the same performance and durability as traditional diaphragms and are 100% compatible with existing hardware.

Specifications

Downloads

Wilden EZ-Install Diaphragm Brochure

Wilden® Full-Stroke PTFE Diaphragms deliver the suction lift, life, flow rates, efficiency and reliability needed for peak performance and maximum containment.

• Increased displacement per stroke for enhanced suction lift, flow rates and operating efficiencies
• Exceptionally smooth, contoured shape with fully interchangeable shaft and hardware with current Wilden rubber and TPE diaphragms

Specifications

Downloads

Wilden Full-Stroke PTFE Diaphragm Brochure

The Ultra-Flex Diaphragm for AODD Pumps is the longest-lasting rubber compound diaphragm in the industry.

Its long diaphragm life is due to its “operational” convolute shape, which maximizes material movement while decreasing diaphragm loading stress concentration throughout the entire stroke. The result is increased abrasion resistance with corrosive materials.

Specifications

Wilden Traditional Pie-Shape Diaphragms for AODD Pumps are available in thermoplastic elastomers (TPE) and rubber.  These diaphragms are available for all pump sizes. These are the original diaphragms – first invented with the original Wilden AODD pump.

Specifications

Additional Wilden Resources:

What is the Best AODD Pump Diaphragm?

Why Buy Wilden Genuine OEM Pump Diaphragms

Download Wilden Diaphragm Full Brochure