Experts in Chem-Feed and Water Treatment

Solenoid versus Motor-driven

Experts in Chem-Feed and Water Treatment

Aspects of Solenoid Pumps

Low flow – up to 20 gph Low pressures – up to 250 psi Inexpensive Simple to use – basic operation to Gala/Delta Low viscosity ratings (high viscosity available) Some customers consider these “Throw Away” Auto de-gassing capabilities Not rated for API use Can come in “Explosion-Proof” models Hard to break

Experts in Chem-Feed and Water Treatment

Aspects of Motor-driven pumps

Higher flow – up to 10,000 gph and more! Higher pressures – up to 56,000 psi..no more! More expensive Simple to use – Basic Sigma, Meta, Makro Need to pay attention to hydraulics No auto de-gassing ProMus/Orlita in accordance with API-675 Need explosion-proof motors Control Sigma same as Gala Higher viscosity rating Some customers like some “beef” to their pump

Experts in Chem-Feed and Water Treatment

What pump do you choose?

Find out as much information as you can Flow rate Pressure Chemical Application Indoors or outdoors Suction lift or flooded suction Viscosity Specific gravity Vapor pressure Control aspects

Experts in Chem-Feed and Water Treatment

What pump do you choose????

If motor-driven, run piping program Any plant restrictions (API, no solenoid, explosion-proof,

sanitary, no plastic, no aluminum, pump size) Does customer have a preference?? Customers price range? ProMinent’s recommendation

Experts in Chem-Feed and Water Treatment

Linear (solenoid) “Lost Motion” Drive

Suction Stroke Discharge Stroke

Return Spring Extended

Return Spring Compressed

Solenoid De-Energized

Solenoid Energized

Stroke Return LimiterStroke Length Knob

Stroke length adjustment is made by limiting return of suction stroke

ProMinent Models: Gamma, Beta,GALA, “D” pumpsProMinent Fluid Controls

Experts in Chem-Feed and Water Treatment

Rotating (motor) Cam and Follower “Lost Motion” Drive

Suction Stroke Discharge Stroke

Stroke Return Limiter

Stroke Length Knob

Extended Return Spring

Compressed Return Spring

Cam Follower

Stroke length adjustment is made by limiting return of suction stroke

ProMinent Models: Vario, Meta, Sigma, Hydro

ProMinent Fluid Controls

Experts in Chem-Feed and Water Treatment

Rotating (motor) Straight Crank (Amplitude Modulation) Drive

Worm GearDrive Gear

Eccentric

Yoke

Stroke Length Knob

Suction Stroke Discharge Stroke

Stroke length adjustment is made by changing eccentric height, which changes yoke travel distance

ProMinent Models: Makro, AlphaProMinent Fluid Controls