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

Wilden developed Ultra-Flex™ technology to make it the longest-lasting rubber compound diaphragms in the industry. Ultra-Flex™ technology incorporates revolutionary design concepts, which reduce internal stress. The reduction of this stress is the key to long diaphragm life.

CONVOLUTE SHAPE: Traditional and dome-shaped diaphragms re-form as the pump operates which induces high stress levels in the rubber and fabric. Wilden's Ultra-Flex™ diaphragm is molded in an "operational" shape such that stress concentration is minimized throughout its entire stroke length.

HARDWARE:

Ultra-Flex™ hardware (shaft, pistons, spacers) maximizes the amount of diaphragm material involved in the diaphragm's movement. This improvement decreases the unit loading on the diaphragm and alleviates stress concentration.

ALTERED FABRIC PLACEMENT:

Controlled fabric placement decreases tensile loading to further reduce stress. An additional benefit attributed to this fabric placement technique is increased abrasion resistance.

DIAPHRAGM MATERIALS: Buna-N, Nordel^®, Neoprene, Viton ^®.

LONGER LIFE GUARANTEE:

All Ultra-Flex™ diaphragms are guaranteed to deliver longer life than pie-shaped, dome-shaped, or any other competitive diaphragm technology. If less flex life is realized, Wilden will send you a new set of Ultra-Flex™ diaphragms free of charge. This comparison must be conducted in the same pump size, utilizing the same diaphragm material on the same application. Failures due to misapplication as well as consequential damage to other pump components and/or associated equipment are not covered by this guarantee.