Air-Operated Double-Diaphragm Pumps

Diaphragm Material Options

Wilden® offers the diaphragms for its Pro-Flo® and Pro-Flo® SHIFT AODD Pumps in three materials of construction:

Rubber

• Neoprene: use with water/wastewater chemicals
• Buna-N: ideal for oil-and-gas applications
• EPDM: best for ketones and aldehydes, and acetates
• FKM: ideal for aromatic and chlorinated hydrocarbons

TPE

• Polyurethane: best in water/wastewater applications
• Wil-Flex™: ideal for water/wastewater and handling ketones and aldehydes
• Saniflex™: for aromatic hydrocarbons

PTFE

Ideal in all chemical-handling applications across many industries

Wilden diaphragms are also available in Full-Stroke, Integral Piston and EZ-Install designs, all of which are available in materials of construction that make them useable in fluid-transfer applications that have chemical-compatibility concerns.

Please consult with the Chemical Guide before making a diaphragm selection.