Wilden Pump & Engineering Co. - Manufacturer of air-operated double-diaphragm pumps.

Designed for tough and harsh applications, the Quadra-Flex" diaphragm provides you longer flex life and durability beyond the industry standard. Quadra-Flex" diaphragm increases your pump life, maximizes your containment and reduces your maintenance downtime. The proprietary PTFE laminate diaphragm design is tougher than nails, metal chips or any abrasive pumping media you can throw at it. You can always count on Quadra-Flex" to provide you increased reliability, piece of mind and the quality your business deserves.

Tear Resistant, Durable Design
Long Flex Life
Superior Chemical Resistance
Superior Sealing
Reduced Maintenance & Downtime
Designed for Abrasive Applications
Proprietary PTFE Composite
Ease of Assembly
Competitively Priced

Passed 300+ Hr. Metal Chip Test
No expanded sealant tape required
Formulated neoprene material to reduce compresion set and tearing at the bead
Increased tensile and impact strength
Uses same existing hardware as Wilden's 2-pc PTFE diaphragm
Meets FDA 21 CFR 177
Max. temperature 4.4°C (40°F) to 107.2°C ( 225°F)
Max. operating pressure 8.6 bar (125 psig)
Available in 25mm (1") & 38mm (1-1/2")

The Quadra-Flex" diaphragm was designed to resist tearing when pumping sharper solids. To confirm this aspect of the Quadra-Flex" design, the diaphragm had to pass a grueling life test by pumping water containing razor sharp metal chips for over 300 hours.

After consistently passing this test, it was evident that this diaphragm picks up where other diaphragms leave off. For information on the metal chip test, consult the factory.