½” Pneumatic Double Diaphragm Pump

½” Pneumatic Double Diaphragm Pump, DF50

Samoa ½” AODD Pump, DF50, Conductive Acetal-PTFE-PTFE

Double diaphragm air-operated pumps for dosing, spraying, transferring, and distributing a wide range of fluids in applications with low to moderate flow rates. Excellent for solvents, including most ketones, acetates, aldehydes, aromatic, and chlorinated hydrocarbons, as well as solvent- and water-based gravure, flexo, and paint inks. Pump wetted components can be used in corrosive situations and are compatible with even the most aggressive fluids. Polypropylene is used to make the air motor's air chamber covers and directional air valve. For use in potentially explosive environments (Ex II2 GD IIB/IIC 95 °C), this model is a fully groundable ATEX-certified pump.

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Technical Data
Capacity Chart
Dimension
Model Box

Maximum wet suction head	8 m (26 ft)
Wetted materials	Polypropylene, Stainless steel (AISI 316), Stainless steel, PTFE, Conductive acetal
Fluid inlet	1/2" BSPP (F)
Air pressure operating range	1.5 - 8 bar (20 - 120 psi)
Delivery per cycle	0.2 l (0.05 gal)
Fluids	Varnish, Ink, Paint, Solvent
Pressure ratio	1:1
Weight	2.2 kg (4.85 lb)
Fluid outlet	1/2" BSPP (F)
Pump size	1/2"
Air inlet	3/8" NPSM (F)
Maximum dry suction head	6 m (20 ft)
Maximum free flow delivery	50 l/min (14 gal/min)
Certification	ATEX
Solids in suspension maximum size	3 mm (0.12 ")

Product code	Diaphragms	Balls	Seats	Other wetted materials	Air motor	Fluid Path
DF50PPSVSTHBAS	Hytrel	PTFE	Stainless steel (AISI 316)	Stainless steel	Polypropylene	Polypropylene
DF50PPYTWTTBAS	PTFE	PTFE	PVDF	Hastelloy C	Polypropylene	Polypropylene
DF50PPSTSTTBAS	PTFE	PTFE	Stainless steel (AISI 316)	Stainless steel	Polypropylene	Polypropylene
DF50PDSTSTTBAS	PTFE	PTFE	Stainless steel (AISI 316)	Stainless steel	Polypropylene	Conductive acetal
DF50PPSESTMBAS	Santoprene	PTFE	Stainless steel (AISI 316)	Stainless steel	Polypropylene	Polypropylene
DF50PKYTWTTBAS	PTFE	PTFE	PVDF	Hastelloy C	Polypropylene	Conductive PVDF