Operation Description - Anest Iwata DDP 70 B Manual De Instrucciones De Uso Y Mantenimiento

DPS-70 C - DPS-70 CN DIAPHRAGM PUMPS
EN
6.5 WORKABLE PRODUCTS
All ANEST IWATA DPS diaphragm pumps are conceived to paint ferrous material in general, wood and plastic.
Models DPS-70C.TE are designed for paints with a maximum viscosity of 85 sec/Ford #4 (100 sec/NK-2).
We don't recommend the use of these models with water-based paints.
Models DPS-70CN.TE are intended also for water-based paints.
To use the pump with special products ask for the manufacturer's approval. Moreover, the pump technical features will have
to be adapted to the special product working.
The Company ANEST IWATA is not to be held responsible for any accident due to the pump use by an UNAUTHORIZED and non
qualified staff using it for purposes that are different from the above mentioned ones.
WARNING
• NEVER USE THE HALOGENATED HYDROCARBON SOLVENTS :
METHYL CHLORIDE, DICHLOROMETHANE, 1.2-DICHLOROETHANE, CARBON TETRACHLORIDE, TRICHLORO-
ETHYLENE,1.1.1-TRICHLOROETHANE OR SIMILAR
• VERY TOXIC PRODUCTS SUCH AS PETROL, KEROSENE COMBUSTIBLE GASES
• ANY HERBICIDE OR PESTICIDE
• ANY RADIOACTIVE FLUID
(Be sure that all fluids and solvents are compatible with gun parts. We are ready to supply a material list used in the gun on
request. Do not use with corrosive liquids (except for PH6-8)
7. PUMP OPERATION

7.1 OPERATION DESCRIPTION

Material outlet
Air outlet
A
Air inlet
FIG. 1
Material suction
Material outlet
FIG. 2
Air outlet
A
Air inlet
Material suction
10
Based on a simple manufacture, the operation consists in two diaphragm
movement, which are both fixed at the end of a rod, pressurizing and sending
the paint.
The compressed air enters the air chamber from side A in picture 1.
The diaphragm is moved to the left, by pushing the paint.
B
At the same time, the diaphragm on the opposite end (side B) moves to the left
by sucking the paint.
When the rod is completely on the left, the double pneumatic valve reverses the
operations.
The compressed air enters the air chamber from side B in picture 2.
The diaphragm is moved to the right, by pushing the paint.
At the same time, the diaphragm on side A end sucks the paint.
The pump repeats the above-mentioned suction and delivery movements.
The result is a steady and pulsation-free material flow.
B
The main feature is the action of two pneumatic valves: the first one is a power
valve feeding the pump, and the other one a control valve always ensuring the
movement.