DESMIPUMPs
DIAPHRAGM PUMP
The minipumps Cubic membrane and diaphragm pumps Boxer are characterized by high-performance, high strength and toughness which makes them suitable for pumping fluids with very high apparent viscosity, up to 50,000 cps (at 20 ° C) even in the presence of suspended solids.
The pneumatic circuit stall ensures safe operation and does not need lubricated air.
The ability to self-priming from dry relevant heights draft, combined with the ability to make fine adjustments in speed without loss of pressure, and the capability to load without being damaged, have given these pumps an unprecedented versatility. The vast choice of composition materials allows to determine also the best chemical compatibility with the fluid and / or the environment without neglecting the temperature field. Their construction makes them particularly suitable for harsh environments with high humidity or in potentially explosive environments (ATEX certification).
Main advantages
- Run in PP, PVDF / ECTFE, aluminum and stainless steel AISI 316;
- Operation in explosive atmosphere (ATEX certification zone 1 - 2);
- Suitable for demanding applications and environments with high humidity;
- Dry operation;
- Self-priming dry;
- Power supply to non-lubricated air;
- Scope and head;
- Fine adjustment of speed at constant pressure;
- Possibility of twin manifolds (two separate intakes and deliveries);
- Installation on bench or ceiling;
- Three positions for the delivery and aspiration;
- Ease of maintenance and replacement parts;
- Optimum performance / cost.
Description pump
BOXER diaphragm pumps Debem consist of a pneumatic motor coaxial housed centrally.
His tree are fixed for the membranes of new generation (Profile Long Life). At both ends of the two bodies are accommodated pump ball valves and their seats to retain inlet and discharge product.
The heart pumps Pneumatic diaphragm is made from the heat exchanger DEBEM tire that has been able to develop and innovate revolutionary patent system more durable and reliable available today.
This device is pneumatically unbalanced due to a stall circuit that ensures optimum operation even under the most criticism.
Components
Its form of construction is very compact and the few components that make up give it high strength and durability even in extreme conditions.
The air passages have been carefully studied and optimized to prevent ice formation in the presence of low temperatures and high heads.
Exchanger tire DEBEM is an integrated system in a single cartridge that does not require additional central external components.
Operation
The range of diaphragm pumps DEBEM exchanger is provided with a tire that ensures perfect operation even with tire pressure supply (min 2 bar).
The remaining rooms and air passages have been carefully designed to optimize consumption.
The speed and size are easily adjustable through the choking air, while the prevalence can be adjusted by varying the supply pressure.
Membranes Debem
The membranes are the item most in demand during the suction and pumping, a process during which they must also resist chemical aggression and temperature of the fluid.
Their correct evaluation and choice is therefore a key role in the life of the membranes and for investment and maintenance costs.
A modern design process, destructive testing and in-depth analysis of the results have allowed DEBEM to develop next-generation membranes LONG LIFE. These products offer, thanks to their profile and form of construction, a larger area of work and a better redistribution of the load, minimizing the stress and yield strength of the material.
RUBBER MEMBRANE
They are made of rubber compounds with appropriate additives that improve the chemical characteristics as well as mechanical and bending resistance. These membranes are provided with canvas reinforced nylon for better distribution of stress:
NBR: of cost and particularly suitable for petroleum based fluids and oil;
EPDM: good resistance to acids, alkali, abrasion, together with a good flexibility even at low temperatures.
THERMOPLASTIC MEMBRANES
They are made of thermoplastic polymers that have high resistance and distribution of mechanical stress.
POLYURETHANE: excellent resistance to abrasion and is suitable for general purpose use;
HYTREL : Good resistance to abrasion and suitable for processing of foods.
SANTOPRENE ®: excellent chemical resistance to acids, alkali, high bending strength and good resistance to abrasion;
A = Ball Valves
B = pumping chamber
C1 = membrane product side
C2 = membrane airside
D = intake manifold
E = manifold
F = tire exchanger
How it works
The compressed air fed from the heat exchanger tire behind one of the two membranes results in the compression and pushing the product in the duct at the same time, the membrane opposite the tree and supportive of the heat exchanger creates a vacuum sucking the fluid. Once completed the race tire deflects the heat exchanger the compressed air behind the membrane side and the cycle is reversed.
Watch animated diagram of the operation of the pump >>
Exchanger tire
Installation
Diaphragm pumps must be installed horizontally with special bolts on the legs or holes provided with the axis of the heat exchanger arranged horizontally.
Can be used for installations:
Drum (with max 10,000 cps viscosity at 20 ° C)
self-priming (with max 10,000 cps viscosity at 20 ° C)
under the head (with max viscosity 50000 cps at 20 ° C)
immersed (with max viscosity 50000 cps at 20 ° C)
split in suction and delivery (with max viscosity 50000 cps at 20 ° C)
split into delivery (with max viscosity 50000 cps at 20 ° C)
Watch the pattern of possible installations >>
Chemical compatibility
The type of fluid, the temperature and environment of use are the factors that influence to determine the appropriate choice of materials for the pump and its correct chemical compatibility. For example the table is given below:
See the table of chemical compatibility >>
