
Rd 20 Mini Air Operated Chemical Drum Diaphragm Pumps. No Deadstop Design: Three-way pilot type air-distributing valve ensures stable operation and faster reversing. Imported Sealing Parts: Diaphragms and all sealing parts imported from USA for perfect sealing and no leak. Wide Material Selection: Wetted parts available in PP, PVDF, Acetal, Aluminum, Ductile iron, and Stainless Steel. Versatile Applications: Suitable for corrosive, volatile, flammable, and high viscosity fluids in chemical and wastewater treatment. Certified Quality: Holds CE, ISO9001, and SGS certificates with over 30 patents. Flexible Customization: Engineers select suitable materials and sizes based on specific working conditions. Easy Maintenance: Designed for simple maintenance with stable operation performance. High Flow Capacity: Max flow rate up to 61 L/min with max head of 70m.