Wilden® Pneumatic Diaphragm Pump Selection Guide for the Marine Industry

Product Series Selection Guide

Wilton offers a wide range of product series for the marine industry:

Series | Features | Typical Marine Applications

Turbo-Flo™ Series | Classic clamp design, lightweight, easy to maintain, equipped with an air distribution system (ADS) | 

Bulch drainage, dock operations

TZ Series | Covers various calibers and materials, suitable for various working conditions | Bulch drainage, fuel/lubricating 

oil transfer, ballast water treatment, deck washing

Original™ Series | Classic and robust design, continuing since 1955 | Permanently installed bilge pumps, portable drainage pumps

Advanced Series | High flow rate, high product sealing performance, bolt-on hydraulic system | Various fluid transfers in 

commercial marine environments

Pro-Flo® SHIFT Series | Patented air distribution system, grounded for ATEX explosion protection | Fluid transfer in explosive 

atmospheres

The TZ2 series (corrosion-resistant aluminum alloy metal pumps) is a common choice in the marine industry; the T15 series 3-inch

 pumps, with their ability to handle solid particles up to 25mm, excel in wastewater treatment scenarios with high solid content.

Selection and Maintenance Recommendations

Three Key Selection Factors:

**Media Analysis:** Clearly define the chemical composition (pH value, oil content, solids content), temperature, and viscosity 

of the fluid being pumped. Select the appropriate pump body and diaphragm material accordingly.

**Operating Condition Assessment:** Determine the required flow rate, head, self-priming height, and installation space limitations.

**Safety Requirements:** Confirm whether the operating area has explosion-proof requirements and whether ATEX certification

 is needed.

**Maintenance Points:**

Wilton pumps employ a modular design. The diaphragm replacement cycle is generally 6-12 months (depending on operating conditions).

It is recommended to keep original equipment manufacturer (OEM) spare parts such as air repair kits and wet-end repair kits on hand.

Daily inspections should focus on the cleanliness of the valve assembly and the wear condition of the diaphragm.

**Conclusion:** In the marine industry, where equipment reliability, safety, and adaptability are extremely critical, Wilton pneumatic 

diaphragm pumps, backed by nearly 70 years of technological expertise, offer a practical solution. It's not a panacea, but in critical 

areas like bilge drainage, fuel oil transfer, ballast water treatment, and emergency firefighting—where traditional pumps frequently

 fail—it's often the most reliable choice.

As summarized on the Wilden website: Wilden AODD pumps drive core marine operations, including firefighting, bilge drainage, 

wastewater transfer, and bunkering, with reliable performance. For ship owners, chief engineers, and shipbuilding engineers, 

understanding this technological logic of "using compressed air instead of electricity and diaphragms instead of mechanical 

seals" may be the key to solving the challenges of fluid transport on board ships.