QBK PVDF plastic air operated double diaphragm pump:

QBK Series new pneumatic diaphragm pump is designed and manufactured for various corrosive liquids and liquids with solid grain and high viscosity and volatile and flammable and toxin liquids on the base of QBY series pneumatic diaphragm pump. QBK series pump has the advantages such as long life and better anti-stall performance etc.

9 Specification: φ8mm(5/16\'\'）,φ10mm（3/8\'\'）、φ15mm（1/2\'\'）、φ25mm（1\'\'）、φ40mm（11/2\'\'）、φ50mm（2\'\'）、φ65mm（21/2\'\'）、φ80mm（3\'\'）、φ100mm（4\'\'）。

4 materials of pump body: Aluminum alloy, cast iron, stainless steel, engineering plastic.

Diaphragm materials: NBR, Neoprene, Fluorine plastic (Viton), Teflon(FEP/F46)/PTFE for different medium

Parameter:

Name	Model	Inlet/outlet (mm)	Capacity (L/min)	Head (m)	Suction height (m)	Max grain diameter φ(mm)	Supply air pressure (kgf/cm²)
New pneumatic diaphragm pump	QBK-8	8	16	50	5	1	2-7
QBK-10	10	20	50	5	1	2-7
QBK-15	15	20	50	5	1	2-7
QBK-25	25	100	50	5	2.5	2-7
QBK-40	40	140	50	5	4.5	2-7
QBK-50	50	240	50	5	8	2-7
QBK-65	65	280	50	5	8	2-7
QBK-80	80	400	50	5	10	2-7
QBK-100	100	480	50	5	10	2-7