debem CUBIC气动隔膜泵

The CUBIC diaphragm pumps are known for their high performance, power and sturdiness that make them suitable for pumping fluid with a very high apparent viscosity, of up to 50.000 cps (at 20� C) even when suspended solid parts are present. The dry suction capacity from considerable suction heights when the pump is not flooded, together with the possibility to fine-tune the speed without a loss in pressure, flow rate and head, and the possibility of loadless operation without causing any damage, make these pumps extremely versatile. The vast choice of composition materials allows you to determine the best chemical compatibility with the fluid and/or the environment without neglecting the temperature aspect. Their construction makes them particularly suitable for severe environments with high humidity or in potentially explosive environments (ATEX certification).

Main features

1. executions in: Polypropylene, PVDF/ECTFE
2. use in explosive atmospheres (ATEX certification);
3. suitable for severe environments and with high humidity;
4. dry operation;
5. dry self-priming;
6. supply with non-lubricated air;
7. adjustable flow rate and head;
8. fine-tuning of the speed at constant pressure;
9. possibility of twin manifolds (two separate intakes and deliveries);
10. bench or ceiling installation;
11. three delivery and intake positions
12. ease of maintenance and replacement of parts;
13. very good performance/cost ratio.

Description

Diaphragm minipumps are composed of a coaxial centrally housed pneumatic motor, with newgeneration diaphragms (Long Life profile) fixed to the shaft. At the two ends, the two pump bodies house the ball valves and the relative seats of the product intake and delivery ducts.

See the animated representation of diaphragm pump operation

Technical data

See data comparison table

Coaxial pneumatic exchangers

The pneumatic exchangers that DEBEM has developed and innovated in a revolutionary manner, patenting the most reliable and long-lasting system available today, are the heart of the pneumatic diaphragm pumps. The device is pneumatically unbalanced thanks to a stallprevention circuit that ensures optimum operation even in the most critical conditions.

The diaphragms

Diaphragms are the parts that are most affected and stressed by the suction and pumping process, during which they must also resist to chemical aggression and fluid temperature. Therefore, evaluating and choosing the diaphragms correctly plays an important role in extending the life of the diaphragms and affects investments and maintenance costs. Thanks to a modern design process, destructive tests and thorough analyses of the results, DEBEM has developed a new generation of diaphragms called LONG LIFE that offer, thanks to their profile and construction, a greater work surface and an improved load redistribution that reduces material stress and yield to a minimum.
More on the Debem diaphragms

Chemical compatibility

The type of fluid, its temperature and the location are important to establish the correct pump construction materials and their chemical compatibility.

with PP, PVDF, ECTFE, Halar ®, Aluminium, AISI 316 stainless steel, NBR Perbunan ®, EPDM Dutral ®

Material	PP	PVDF ECTFE Halar ®	Aluminium	AISI 316 stainless steel	NBR Perbu nan ®	EPDM Dutral ®
Acetaldehyde	A1	D	B	A	D	A
Acetamide	A1	C	A	A	A	A
Vynil acetate	B1	A2	A1	B	D	B2
Acetylene	A1	A	A	A	B	A
Vinegar	A	B	D	A	B	A
Acetone	A	D	A	A	D	A
Fat acids	A	A	A	A	B	D

with Poliurethane, PTFE Teflon®, PPS-VRyton ®, FPM Vyton ®, Santoprene®, PE UHMW Polizene ®

Material	Poli urethane	PTFE Teflon®	PPS-V Ryton ®	FPM Vyton ®	Santo prene®	PE UHMW Polizene ®
Acetaldehyde	---	A	A	D	---	B
Acetamide	---	A	A	B	---	---
Vynil acetate	---	A2	---	A1	---	D
Acetylene	D	A	A	A	---	---
Vinegar	D	A	A	A	---	A
Acetone	D	A	A	D	A1	A2
Fat acids	D	A	---	A	D	A

Chemical compatibility:
A = excellent
B = good
C = slight, not recommended
D = serious attack, not recommended
--- = not available
1 = up to 22°C (72°F)