Thermoplastic Elastomers (TPE)

Wilden® TPE diaphragms are durable, low cost and operate over a wide temperature range. Injection-molded of premium grade engineering resins, TPE diaphragms have inherent tensile strength without the need for fabric reinforcement. TPE diaphragms are available in Wilden’s integral piston and EZ-Install diaphragm design as well as the traditional AODD diaphragm shape (pie-shape).

Wil-Flex™ (Santoprene®)

Abrasion and chemical resistant
For acidic and caustic applications such as sodium hydroxide, sulfuric or hydrochloric acids
Also available in food grade option that complies with FDA CFR 21.177
Excellent flex life, abrasion resistance and durability
Available designs:

Geolast®

Lower cost substitute for Buna-N material
Best for petroleum-/oil-based fluids and applications, including gasoline, fuel oils and motor oils
Moderate flex life, good abrasion resistance and durability
Available designs:
- EZ-Install Diaphragm
- Traditional Pie-Shape Diaphragm

Saniflex™ (Hytrel®)

Outstanding sealing of low specific gravity and highly lubricious materials
Excellent for food applications, fats and oils, and complies with FDA CFR 21.177 standards
Good flex life, excellent abrasion resistance and durability
Available designs:

Polyurethane

Excellent for general purpose
Recommended for non-aggressive applications such as water-based slurries, well water and seawater
Excellent flex life, abrasion resistance and durability
Available designs:

Downloads

Guides

GUIDE Wilden AODDP Chemical Resistance

Brochures

BROCHURE Wilden Diaphragms