Since 1955, Wilden® has established itself as a global leader in air-operated double diaphragm (AODD) pump technology. As the inventor of the AODD pump, Wilden continues to lead the way in developing groundbreaking solutions that set new standards for positive displacement pump technologies on the market.
Wilden, a brand under the Pump Solutions Group (PSG), specializes in manufacturing reliable, durable, and high-performance AODD pumps. These pumps are renowned not only for their ability to operate in harsh environments but also for their corrosion resistance, microbial resistance, and explosion safety. Notably, Wilden pumps are easy to operate, maintain, and install, making them suitable for various industries such as food and beverage, pharmaceuticals, chemicals, oil and gas, water treatment, and general manufacturing.
Wilden diaphragm pumps are highly effective in handling viscous fluids, corrosive substances, and solid-laden mixtures. Available in materials such as plastic, stainless steel, and aluminum, these pumps also feature high-quality accessories like diaphragms, balls, air distribution systems, and gaskets. With suction and discharge port sizes ranging from 1/4″ to 4″, Wilden pumps offer flexibility for a wide range of applications.
Wilden pumps operate on the positive displacement principle, allowing them to self-prime and run dry without damage, even when handling hazardous chemicals. Additionally, these pumps can handle large fluid volumes and achieve pressures of up to 8.6 bar, meeting the demands of high-pressure applications.
Key Advantages of Wilden Diaphragm Pumps
- Effective Dry Running and Self-Priming: Wilden pumps can run dry without damage and offer excellent self-priming capabilities.
- High Flow Rate and Pressure: These pumps efficiently handle high-flow liquids and can achieve high pressures.
- Low Noise and Vibration: Pneumatic operation, combined with noise and vibration reduction designs, ensures quiet operation and increased equipment longevity.
- Easily Replaceable Parts: Wilden parts are readily available, minimizing downtime for maintenance.
Wilden Diaphragm Pump Series
Pro-Flo® SHIFT Series
The Pro-Flo® SHIFT series is Wilden®’s leading AODD pump line, known for its simple yet effective design. Its air control spool system optimizes air consumption, preventing overfilling without compromising flow rates. This design reduces air consumption, lowers operational costs, and maintains optimal performance and volume consistency.
Key Features:
- Greater air efficiency than competing AODD pumps.
- Longer diaphragm life.
- ATEX-compliant for use in explosive environments.
- Suitable for both wet and dry air.
- Fewer operational components, reducing downtime and easing maintenance.
- Quiet operation.
Pro-Flo® SHIFT models include:
- Bolted Metal: PS220/PS230, PS420/PS430, PS820/PS830, PS1520/PS1530.
- Clamped Metal: PS1, PS4, PS8, PS15, PS20.
- Bolted Plastic: PS25, PS400, PS800, PS1500.
- Clamped Plastic: PS4, PS8.
Pro-Flo® Series
The Pro-Flo® series is Wilden®’s most widely used AODD pump line, boasting over 20 years of reliable performance. With its simple yet robust design, the Pro-Flo® series is ideal for industrial applications such as chemical and oil pumping. Thanks to advanced technology, Pro-Flo® pumps increase efficiency, reduce energy and air consumption, and minimize maintenance needs.
Key Features:
- Maximum reliability.
- Durable components with the longest lifespan.
- Operates without lubrication.
- Anti-freeze technology.
- Unbalanced valve slide for clog-free performance.
- Simple and durable design.
Pro-Flo® models include:
- Bolted Metal: P220/P230, P420/P430, P820/P830.
- Clamped Metal/Plastic: P.025, P1, P2, P4, P8.
- Bolted Plastic: P100, P200, P400, P800, P1500.
Saniflo™ Hygienic™ Series (HS)
Designed for applications requiring high levels of cleanliness, the Saniflo™ HS series features a self-draining flow design to facilitate Clean-in-Place (CIP) procedures. This design eliminates product retention areas, reducing contamination risks, making it ideal for low-acid, sterilized, and protein-based products in the biopharmaceutical industry. Saniflo™ HS meets the highest industry standards, including 3A, ATEX, EC 1935/2004, and FDA CFR 21.177.
Key Features:
- Free-draining design for effective CIP cleaning.
- Easy assembly with self-aligning ball seats.
- Fixed or rotating mounts for easy cleaning.
- Various valve options for different applications.
- Gentle on shear-sensitive products.
- Higher flow rates, pumping more gallons per SCFM.
Saniflo™ HS models include: PS2, PS4, PS8, PS15, H1500.
Saniflo™ FDA Series
The Saniflo™ FDA series is designed for standard food applications that do not require the Hygienic™ design or CIP capabilities. These pumps are ideal for transferring highly acidic, sugary, or fatty substances. Compliant with FDA, CE, EC 1935/2004, and ATEX standards, the Saniflo™ FDA pumps are easy to install and feature a robust design.
Key Features:
- Tri-clamp connections with easy-to-remove clamped arms.
- Easy disassembly/reassembly for cleaning.
- Higher flow rates, pumping more gallons per SCFM.
- Two air distribution system options:
- Pro-Flo® SHIFT: High performance, high flow rates.
- Pro-Flo: Cost-effective, durable, available in a single material option.
Saniflo™ FDA models include: PS1, PS4, PS8, PS15, P1, P2, P4, P8.
Accu-Flo™ Series
The Accu-Flo™ Air-Operated Double-Diaphragm (AODD) pump series offers the precise control needed for high-accuracy applications such as metering. Accu-Flo operates on electrical pulses rather than pressure differentials, enabling stroke rate adjustments as required.
Key Features:
- Integrated electronic control (solenoid).
- Multiple voltage options: 24V DC, 12V DC, 24 AC, and 110V AC.
- Robust design with clamped or bolted options.
Accu-Flo™ models include:
- Clamped Metal/Plastic Pumps: A.025, A1, A2.
- Bolted Plastic Pumps: A25PS, A100, A200.
Turbo-Flo™ Series
Renowned for long-term durability and easy maintenance, the Turbo-Flo™ series was the first in the industry to introduce an air-driven distribution system (ADS). Turbo-Flo pumps are ideal for applications requiring the handling of low-quality air while offering economic benefits.
Key Features:
- Simple air distribution system with few moving parts.
- Clamped design for easy maintenance.
- Handles dirty air effectively.
- Single-point exhaust option for submersible applications.
Turbo-Flo™ models include: T4, T8, T15, T20.
High-Pressure Series
The Wilden® High-Pressure Series pump is capable of generating pressures up to 20.7 bar (300 psig), making it ideal for high-pressure tasks such as filtration, transferring slurry, and handling viscous fluids with a high content of solid impurities.
Key Features:
- Simplex and Duplex technology
- The only 3″ high-pressure pump in the industry
- Pressure boost capability of up to 300 psi
- Durable design with an integrated pressure booster
Models in the High-Pressure Series: H220, HS430S, H800, H1500
Stallion® Series
The Stallion® Series is designed for the most challenging mining applications, capable of handling slurries containing a high content of solid impurities without clogging. Its large internal clearance and unobstructed flow path help prevent blockages.
Key Features:
- Clamp design for easy mobility
- Diaphragms, balls, seats, and shafts designed to handle slurries with solid impurities
- The pump bottom features a polyurethane filter to enhance durability
Models in the Stallion® Series: PS4, PS8, PS15, T4, T8, T15
Brahma™ Series
The Brahma Series pumps from Wilden® feature a top-suction, bottom-discharge design with a cover valve that facilitates the handling of large solids (up to 76mm), preventing clogging during intermittent applications. With a tightly sealed bolted construction and air distribution systems like Pro-Flo® SHIFT and Turbo-Flo™, these pumps ensure robust performance. The Chem-Fuse™ IPD diaphragm made from Wil-Flex® enhances durability and lifespan. The Brahma Series excels in harsh environments, minimizing maintenance time while providing optimal efficiency for the most demanding applications.
Key Features:
- Cover valve design for handling large solids
- Top inlet and bottom outlet design for easy transfer of materials containing sediment
- Utilizes either the Pro-Flo® SHIFT or Turbo-Flo™ air distribution systems
Models in the Brahma™ Series: PS810, PS1510, T810, T1510
UL-certified Series
Wilden® pumps have been certified to UL 79 standards, meeting the requirements for fuel pumping and transfer applications. These pump series can be used for the distribution of gaseous products, fuel, oil, or any other lubrication applications.
Models in the UL-certified Series: PS1, PS220/PS230
How Can We Assist You?
If you’re looking for high-quality, compatible parts that fit Wilden pumps to maintain optimal performance and extend the lifespan of your equipment, Hepas is your perfect solution.
We offer a wide variety of replacement parts for Wilden diaphragm pumps, including pump balls, air valves, hardware, manifolds, and more, helping to maintain the stable and efficient operation of your pump. In addition, Hepas provides complete repair kits to meet all of your maintenance and repair needs.
Don’t let a lack of spare parts halt your operations. Contact the Hepas technical team today for consultation, support, and prompt delivery.
