Air Operated Double Diaphragm SEKO

Air Operated Double Diaphragm

Ball Material 

• NBR Good for petroleum-based fluids, water, oils, hydrocarbons and MILD chemicals.
• EPDM OK with caustic solutions, dilute acids, ketones and alcohols. Good abrasion resistance.
• PTFE Widest chemical compatibility, extreme corrosion resistance, non-adhesive, high heat resistance.
• SS High level of corrosion and abrasion resistance. Good for viscous fluids.

Seat Material 

• POLYPROPYLENE Wide chemical compatibility. General purpose.
• PVDF Strong chemical resistance to acids. High temperature resistance.
• ALUMINUM Wide range of solvent and hydrocarbons. Good level of abrasion resistance.
• SS High level of corrosion and abrasion resistance.
• PE with high molecular weight: High level of abrasion resistance

Air Operated Double Diaphragm

• Excellent chemical compatibility 
• Premium materials such as Hytrel, Santoprene, EPDM, PTFE, 316 stainless steel 
• Special versions of the Duotek AODD pump include an FDA-approved model with food-grade electro-polished stainless-steel construction
• Specification
• Flow rate: 8 – 1,000 l/min
• Pressure: up to 8 bar
• Pump casing materials: polypropylene, PVDF, SS 316 stainless steel, aluminium and POM-C
• Other materials: EPDM, FPM, Hytrel, NBR, PTFE and Santoprene
• Duotek Food Series’ electro-polished stainless-steel casing and premium PTFE diaphragms make the pump FDA approved for safe use in food production 

Markets and Applications
Air operated double diaphragm pumps are some of the most versatile solutions on the market