Metal Air-Operated Double Diaphragm (AODD) Pumps are the trusted choice for handling corrosive, abrasive, high-temperature, or viscous fluids. With nearly 40 years of expertise, DYI SHENG (TDS-DYISHENG) manufactures pumps in Aluminum Alloy and Stainless Steel 316, combined with diaphragm options such as Teflon(PTFE/TFM), UPE, and Santoprene, making them ideal for chemical, petrochemical, mining, electroplating, food, pharmaceutical, electronics, shipbuilding, and wastewater treatment industries.

The AODD pump, constructed with metallic materials and a full bolt structure, ensures excellent sealing performance to eliminate leakage concerns. This guarantees the safety of both operators and the working environment. Combined with robust construction and high durability, our metal pumps reliably transfer aggressive chemicals, solvents, slurries, and abrasive media, reducing maintenance frequency and extending service life.

Certified with ATEX explosion-proof, CE, and ISO9001, our pumps meet international safety and quality standards. This means reliable performance, explosion-proof safety, predictable maintenance costs, and long-term return on investment.

Available in sizes from 3/8” to 2”, our metal pumps provide flexible solutions for both small-scale precision dosing and large-volume transfer applications. Whether for new installations or system upgrades, choosing TDS-DYISHENG metal pumps secures a high-efficiency, durable, and cost-effective solution that helps buyers maintain competitiveness in demanding industries.

Why choose metal pumps over plastic pumps?

A: Metal pumps offer higher mechanical strength, superior wear resistance, and better performance with abrasive or high-temperature fluids, making them suitable for demanding industrial applications.

What sizes and materials are available for metal diaphragm pumps?

A: TDS-DYISHENG metal pumps are available in sizes from 1/4” to 2”, with Aluminum Alloy and Stainless Steel 316 options, paired with diaphragms such as PTFE, UPE, or Santoprene for broad chemical compatibility.

Are metal diaphragm pumps safe for hazardous or explosive environments?

A: Yes. Our pumps are certified with ATEX explosion-proof standards, ensuring safe and reliable operation in hazardous industrial settings.