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Liquid Flow 2000
a radical departure from conventional air operated diaphragm pumps Kelva has solved the problems inherent in conventional AOD pumps. How? With revolutionary new technology that has been incorporated into the latest innovation – Liquid Flow 2000

With the new Liquid Flow design we have succeeded in reducing the drawbacks of conventional AOD pumps such as heavy pulsation, stalling valves, cost of spares, noisy operation, downtime.

Thanks to the ingenious frictionless pivoting valve (FPV) and flexible diaphragm suspension technologies we can now offer less downtime, reduced operational cost and reduced sound level and much more.

1. Reduced downtime
   Minimum of parts - serviced in minutes
   On-line design
   Doubled diaphragm life
   Long life check valves
   Foolproof air motor
2. Reduced spare parts cost
   Prolonged diaphragm life
   Low cost, long-life check valves
   Frictionless pivoting valve
3. Reduced pulsation
   Patented Flexible Diaphragm Suspension (FDS)
   Overlapping diaphragm movement - diaphragms not
   fixed to each other
   Patented air motor system - pivoting valve technology (FPV)
4. System design flexibility
   Self closing flap valves – pump works in any position
5. Non-stalling air-motor
   Operates with any type of air - dry or moist, dirty or oily
   Self cleaning
   Unstable, frictionless pivoting design prevents the motor to get stuck in a deadlock
6. Reduced sound level

Applications
Liquid Flow will give you better performance at lower cost.
Here are some examples of where and when Liquid Flow can be used.

Construction/General Industry
Draining of tanks and sumps, sampling, fuels
Workshops
Oil, coolants, waste oil
Aviation
Filling/emptying of fuel and glycol
Water Industry
Polymers (flocculants), sludge, chemicals, sampling
Paint Industry
Solvents, resin, paint, wood preservatives, varnish, stain, latex, acetone, turpentine
Paper Industry
Ink, solvents, resin, dispersions, latex, glues, caustic soda
Chemical Industry
Acids, alkalis, suspensions, stabilisers, resins, waste recovery, solvents, glues
Refineries
Tank cleaning, oil sludge, petroleum
Cosmetics
Body/skin lotions, shampoo, soap emulsions, lotions, liquid soap
Surface Treatment
Galvanic baths, solvents, acids, caustic soda, varnish
Pharmaceuticals
Syrups, alcohol, glycerine, oils, sorbitol
Marine
Dewatering bilges and holds, sewage

IP Series pumps with single and double outlets
The IP series, our new range of double acting, pneumatic diaphragm pumps are specially designed for pumping flexo and gravure ink, glue and solvents. The ingenious twin inlet and outlet system gives the opportunity to both fill and drain with only one pump.

The IP series comes in two sizes capable of a flow range from 0 to 70 litres per minute, offering versatility for a wide range of applications. The IP series offer a compact, low pulsation, easily built in design with turnable inlet and outlet ports.

The IP series of pumps are explosion proof and certified according to the ATEX directive.

VP pump range – classical diaphragm pump series
The VP single-acting diaphragm pump series are the classical KELVA pumps that have been sold to the graphic arts and packaging industry for over 30 years. With thousands of installations around the world you can rely on a well proven technique and dependaple pump serie. Pumps equipped with a Quick Through Valve (QTV), makes it possible to reverse the ink flow through the pump allowing excess fluid to be brought back to its container. VP pumps are available in three different sizes capable of a flow range from 6 to 18 litres per minute. 

 

TopAir-series
The TopAir-series is one of the most complete lines of Air Operated Double Diaphragm pumps on the market. With eight sizes up to 800 l/min in a wide range of material combinations we can offer pump solutions for all types of industries.

Features/Benefits

1. High performance - long life diaphragm
   Abrasive and corrosive materials handled without problems
2. Able to pump solid particles
3. Wide range of material combinations
   Low and high viscous liquids, alkalis or acids
4. Dry start - self-priming
   Can run dry without damage or overheating
5. Flexible installation
   Can be installed with flooded suction condition
   Possible to submerge
6. Air drive - sparkless conditions
   Explosion proof
7. Variable Flow control
8. High capacity
9. Reliable operation - no-stalling air valve
10. Simpel design
    Easy maintenance

Suitable for
TopAir will pump any liquid which flows or moves through a pipe - from clear water and volatile liquids to highly viscous and abrasive or chemically aggressive liquids.

Some examples of media handled by TopAir: clays, glazes, acids, alkalis, latex, solvents, cement slurry, sump and pit drainage, electroplating solutions, milk of lime, oil, polishing slurries and pastes, varnish additives, coal sludge, grouting motor, resins, wood preservative, glue, pulp and paper slurry, ink, petroleum, benzine, ointment, alcohol, waste water, sewage.

Technical data - General for TopAir-series
Wetted parts: Polypropylene, Poly Vinyl Chloride, Kynar®, Aluminium, Stainless Steel, Cast Iron, Teflon®
Diaphragms: Nitrile, Neoprene, Nordel® Viton®, Hytrel®, Santoprene®, Teflon®
Max. differential pressure: 7 bar
Max. temp: 60-120°C, depending on materials

Performance overview
	Max capacity l/min	Max size solids mm
TA-5	10	0.2	pdf data sheet
TA-10	20	1	pdf data sheet
TA-15	45	1	pdf data sheet
TA-20	100	2	pdf data sheet
TA-25	160	3	pdf data sheet
TA-40	450	7	pdf data sheet
TA-50	650	8	pdf data sheet
TA-80	800	10	pdf data sheet

Accessories
A range of accessories are available for the TopAir line.
These include the following:

1. Pulsation damper
2. Diaphragm leak sensor
3. Speed generator EDP1
4. Electronic stroke counter for dosing
5. FRL - Filter, Regulator and Lubricator
6. Flange connections
7. Pneumatic stroke counter for preventative maintenace
8. Air motors
9. Drum pump conversion kit for TA-20

Aro Pumps
Ingersoll Rand/ARO Diaphragm Pumps provide stall-free, ice-free operation. The patented “Unstallable” unbalanced air valve design avoids stalling issues associated with other pumps. The “Quick-Dump” exhaust valves divert cold exhaust air from ice-prone components, preventing freezing. Backed by a five-year warranty, you have the most reliable pump line on the market today.

NON-METALLIC DIAPHRAGM PUMPS
Maximize fluid compatibility with the complete line of Non-Metallic diaphragm pumps from Ingersoll Rand/ARO. Available in Polypropylene, Kynar (PVDF) and Groundable-Acetal.

½” PORTS 14.4 GPM (54.5LPM)

Features

1. Simul-Shift Valve provides ultra-positive, reliable shift signal
2. AROs patented "Unbalanced" Air Valve
3. Bolted construction for leak-free fluid-handling reliability and ease of assembly
4. Positive priming provides instant start-ups
5. Broad range in materials of construction for optimum fluid compatibility
6. Five-Year Warranty

½” PORTS GROUNDABLE 14.4 GPM (54.5LPM)

Features

1. A patented material blend routes electrostatic buildup to a single bleed-off point
2. This exclusive body composition also provides superior compatibility
3. AROs Patented "Unbalanced" Air Valve
4. Bolted construction for leak-free fluid-handling reliability and ease of assembly
5. Perfect for solvent-based paints, lacquers and coatings

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