Diaphragm Pumps
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Diaphragm Pumps are recommended for hazardous, Toxic and Poisonous liquids, where leakage is not at all permitted. Diaphragm pumps have hydraulically actuated diaphragm and a back pressure valve. The main function of back pressure valve is to balance the hydraulic oil in the chamber. The reciprocating plunger transmit displacement through hydraulic oil to the diaphragm, the oscillation of diaphragm produces pumping action on process fluid with help of Non-Return Valve in built at both ends. The diaphragm acts as a perfect seal between the hydraulic oil and the liquid being pumped. Diaphragm pump can be provided with single or double diaphragm; usually Teflon acts as a diaphragm. The back pressure valve which is in the hydraulic oil tank ensures pumping accuracies for long period. The pressure drop in hydraulic chamber due to oil leakage is automatically compensated by opening back pressure valve. Besides back pressure valve acts as safe guard from damages if discharge pressure exceeds pump rated pressure.
Range of Capacity - ‘DENCIL’ Brand diaphragm Pump is available for 0.5 Ltrs to 12,000 Litres per hour and pressure up to 100 Kg/cm2 in various model to suits client application.
DENCIL offers :
Hydraulic Operated Diaphragm Pumps
Mechanical Operated Diaphragm Pump
Design feature/benefits of diaphragm pumps
Diaphragm pumps are used to discharge pressures upto 45 kg/cm2 (640psi)
Pneumatic and electric stroke length control available, automatic capacity control in response to standard 4-20MA process signal.
Explosion proof motors available suitable for use in hazardous atmospheres.
Lowflowrates accurate, reliable chemical feed.
Accuracy ± 2%.
Design Facilities & Manufacturing Standrads
Pumps are manufactured as per API 675 Standard
Standard pump models selection considering Viscosity, vapor pressure, Specific gravity.
Piping layout (Acceleration losses & NPSHR)
Softwares like Computer aided design (CAD) , Solidworks & Siemens NX are used for Design & General Assembly.
Tests performed on each pump
Flow rate
Power consumption
Pressure test
Applications
Basic intermediate and finished products, petrochemical and pharmaceuticals industries.
Machine building, mining, metal processing, filling and extraction technology
Crude oil, natural gas, coal, nuclear power.
Raw materials, liquid products, dairy products, pasta, baked goods, sweet tobacco
Paper, cellulose, textiles, leather, synthetic, fibers or material, building materials, cleaners and detergent, film, tapes
Water treatment, air cleaning, disposal techniques
Dialysis, stored blood.
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