Hydraulic diaphragm pumps are renowned for their durability, but start-up and maintenance can be laborious, particularly when service requires purging and replacing intermediate fluids. Additionally, many designs are very sensitive to changing suction conditions. If undiagnosed, blocked or starved suction can lead to hydraulic overfill and subsequent diaphragm failure.
Mechanical diaphragm pumps are far less sophisticated. Start-up and service are typically much smoother since there are no messy intermediate fluids, internal relief valves or hydraulic refill circuits to tamper with. But, until now, mechanical diaphragm pumps haven't shared the hydraulic diaphragm pump's reputation for robustness. Welcome to the Encore 700 advantage.

Handles capacities up to 634 gph (2,400 I/h), back pressures to 175 psi (12 bar).

Non-loss-motion (amplitude modulation) stroke adjust mechanism renders unrivaled efficiency, longevity and reliability.

Choice of two field convertible drives... direct coupled or pulley coupled, for an additional 4:1 turndown on stroke frequency with a standard induction motor.
Precision engineered liquid ends meter mild solutions, aggressive chemicals, high viscosity polymers and slurries with far greater efficiency than conventional liquid ends.

Clear PVC cartridge valves for fast, foolproof service with no piping disturbances, and built-in visual indication of operation.

Premium diaphragm design ensures high metering accuracy, even at varying discharge pressures.
CAPACITY:
Handles capacities up to 634 gph (2,400 I/h), back pressures to 175 psi (12 bar).

STROKE LENGTH:
Liquid end size 1 and 2: 0.188" (4.8mm)
Liquid end size 3, 4, 5 and 61/2: .0375" (9.6mm)

ACCURACY:
Reapeatable metering accuracy is +/-2% of full scale, at constant hydraulic conditions, over 10:1 operating range.

SUCTION LIFT:
The pump will self prime with a 10ft. of water suction lift (wetted valves, zero back pressure, full stroke and spreed, waterlike solutions). Once primed, the pump will operate with a 10ft. of water suction lift. Flooded suction is recommended.


-MUNICIPAL/INDUSTRIAL WATER TREATMENT:
Coagulants, oxidizing agents, disinfectants, corrosion inhibitors, chemicals for taste, odor and pH control

-SWIMMING POOLS:
Acids, caustics, disinfectants and oxidizing agents

- FOOD PROCESSING:
Bactericides, algaecides, acids, caustics, detergents, corrosion inhibitors and lubricants

- CHEMICAL PROCESSING:
Additives for petrochemical, pharmaceutical, pulp and paper, plastics and textile manufacture

- BREWING & DISTILLATION:
Filtration and fermentation aids, bactericides, acids, caustics and detergents

-AGRICULTURE:
Fertilizers, herbicides, pesticides and food supplements


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