Diaphragm Pumps

Wastecorp designs and manufactures Mud Sucker Diaphragm Pumps for the North American pump market and export worldwide. Mud Sucker diaphragm pumps are available in single and double diaphragm configurations with up to 280 GPM capabilities.

Mud Sucker diaphragm pumps are specified worldwide for transferring all kinds of waste including mud like slurry, sand, petrochemicals, sludge, wastewater and much more. Browse the pump selection below for the ideal portable or stationary diaphragm pump for your job and get started today

Using an electric motor to drive the diaphragms results in electric diaphragm pumps having improved energy efficiency and control. They can be programmed for precise metering and dosing, and they offer the same convenient self-priming ability as other double diaphragm pumps. Wastecorp electric diaphragm pumps are available with standard single-phase electric, three-phase electric, and explosion-proof motors

Electric Diaphragm Pumps

Engine-driven diaphragm pumps are motor driven, and rely on fuel, rather than electricity, to drive the pump.. (A diesel double diaphragm pump, for example, is run on diesel.) The use of fuel allows engine diaphragm pumps to handle high-pressure flows better than other types of diaphragm pumps, making them ideally suited to work in quarries and construction sites

Engine Diaphragm Pumps

Mud Sucker® double diaphragm pump systems are available in a wide variety of configurations, including 1.5” diaphragm pump, 2-inch double diaphragm pump, 3-inch diaphragm pump, and 4-inch double diaphragm pump sizes, and they have fluid handling capabilities ranging from 40-220 GPM. Our double diaphragm pumps can be adjusted to handle different flow rates and fluid types, allowing you to complete multiple tasks with one pump.

Double Diaphragm Pumps

Air-operated diaphragm pumps (AOD) and air-operated double diaphragm pumps (AODD) are recommended for processing flammable liquids because they don’t provide a source of ignition. AOD pumps are frequently used during petrochemical production and chemical processing. At Wastecorp, our AOD pumps come in a wide range of diaphragm pump materials, including stainless steel diaphragm pumps, to facilitate the transfer of abrasive and corrosive liquids.

AOD Pumps

Hydraulic pumps use operating fluid, such as oil or liquid silicone, to transmit power from the motor to the diaphragms. Hydraulic pumps contain built-in safety features, such as a pressure relief mechanism, that allows them to handle very high-pressure applications. These pumps are often used in the petrochemical industry.

Hydraulic Diaphragm Pumps

Wastecorp’s heavy-duty grout pumps are suitable for a wide variety of grouting applications, such as waterproofing and masonry repair. Our grout pumps can be operated manually or with compressed air, giving you the flexibility to move around job sites freely. With their enhanced durability, they can handle even the thickest and most challenging grouting materials, including cement grouts. 

Grout Pumps

Hand pumps offer the ultimate portable pumping solution, allowing users to transfer fluids anywhere without needing an external power source. Wastecorp hand pumps combine lightweight materials with the latest innovations, like BUNA-N flappers and diaphragms, to produce pumps that are both highly durable and easy to transport. Hand pumps can be used in remote locations or for specific applications, such as priming other pumps.

Hand Pumps

Why Choose a Wastecorp Diaphragm Pump?

Wastecorp's Mud Sucker diaphragm pumps

Wastecorp’s durable, versatile diaphragm pumps are ideal for use in tough environments and offer unmatched longevity. At Wastecorp, we pride ourselves on being one of the only industrial diaphragm pump manufacturers to design and manufacture our products exclusively in North America, ensuring superior quality. 

Wastecorp provides a wide range of products suitable for different diaphragm pump uses, including general and job-specific custom designs, such as sanitary diaphragm pumps. Our patented Mud Sucker diaphragm pumps are available in single and double diaphragm configurations (with up to 280 GPM capabilities), and we supply both stationary and portable pumps. We also offer a full selection of diaphragm pump replacement parts to streamline routine diaphragm pump maintenance.

Whether you’re seeking a hydraulic diaphragm pump, motor-driven diaphragm pump, marine diaphragm pump, gas diaphragm pump, a diaphragm pump rebuild kit, or anything in-between, Wastecorp can supply the equipment you need for optimal workflow. Browse the selection of pumps below to find the ideal portable or stationary diaphragm pump for your application. 


Diaphragm Pumps - Questions and Answers

What is a diaphragm pump?

A diaphragm pump (also called a membrane pump) is a type of positive displacement pump that uses suction to transfer liquids. The flow of liquid is controlled with either a flapper or a ball valve and driven by the reciprocating action of the diaphragms. As the diaphragms move back and forth, they create negative air pressure in the pump chambers, drawing in and expelling liquid in a consistent pattern.

Because diaphragm pumps do not use an impeller, they are very versatile. If you have an air operated diaphragm pump (AOD) cases, you will require an  air compressor to operate a the pump. If you have an electric or engine driven pump you will require either 120V, 460V or gas, diesel, propane or natural gas. Unlike centrifugal pumps, diaphragm pumps are self-priming and can withstand significant variations in volume, flow rate, and viscosity.

Learn more from our video

What types of diaphragm pumps are available?

Diaphragm pumps come in four principle configurations: electric, engine, manual, air-operated or hydraulic.

Air-operated diaphragm pumps use compressed air to move the diaphragms back and forth, allowing them to operate virtually anywhere. Electric diaphragm pumps, on the other hand, are powered by an electric motor. They’re highly energy-efficient and capable of precision dosing, making them the preferred choice for some industrial applications. Similar to electric diaphragm pumps, engine pumps are driven by a motor. However, the motor in an engine pump runs on fuel rather than electricity.

In a hydraulic pump, the diaphragms are driven by pressurized hydraulic fluid. The hydraulic fluid creates counter-pressure, which gives these pumps superior resistance to high pressures and flow rates. 

Learn more about Mud Sucker 2B series & 3B series.

What kinds of fluids does a diaphragm pump transfer?

One of the main advantages of using a diaphragm pump is the incredible variety of fluids these pumps can transfer. Some of the many fluids a diaphragm pump can transfer include wastewater, mineral slurries, food and beverage products (such as milk, yogurt, syrups, fillings and sauces), non-combustible oil, paint, chemical solutions (e.g., herbicides and pesticides), resin compounds, and adhesives.

Diaphragm pumps can handle high-viscosity liquids and liquids with a high percentage of suspended solids without stalling, clogging, or sustaining damage. They’re also appropriate for use with shear-sensitive liquids.

What sizes of diaphragm pumps are available?

Diaphragm pumps are available in connection sizes ranging from 1-4 inches, with larger connection sizes being preferred for tasks where a high flow rate is required. Couplings are available to fit almost any piping arrangement.

Can I customize my diaphragm pump? 

At Wastecorp, we offer comprehensive Mud Sucker brand diaphragm pump customization services. Customers can choose from multiple diaphragm pump materials and configurations, with several options available for handling highly corrosive and abrasive liquids. In some cases, customers can also select different motors, ball valves, mounting options, drive options, and more. 

Are there additional accessories I can add to my pump?

Absolutely! We offer numerous accessories to extend the functionality of your pump, making it possible to use one pump for multiple applications. Most of our pumps also come with the option of ordering a spare parts kit, making routine maintenance easier and more convenient. 

How do I get a quote for a diaphragm pump?

To get a quote for a diaphragm pump, navigate to the type of pump you wish to purchase and select the “Quote” or “Configure Your Own” option. If you aren’t sure what type of diaphragm pump you need or have a question about our pumps, you can use our convenient online portal to Request Information.

How do I order a diaphragm pump? What is the return policy for pumps?

To order a diaphragm pump, visit our Products page and navigate to the type of pump you wish to purchase, then click on “Quote” or “Configure Your Own.” 

Due to the nature of fluid handling applications, pumps and pump parts cannot be returned after purchase. However, all of our products are covered by our standard warranty. 

Where are Mud Sucker diaphragm pumps manufactured/shipped from?

Mud Sucker diaphragm pumps are one of the only pump brands designed, manufactured, and shipped exclusively in North America. By keeping production local, we can ensure superior quality control and offer enhanced customer support. 

Do the pumps come with a warranty?

Yes, all Wastecorp pumps come with a comprehensive warranty lasting one year after installation (or 18 months after shipment), which guarantees our products will be free from defects. Visit our Terms and Conditions page for detailed information about our warranty policies.

Who should I contact about issues with my diaphragm pump?

You can contact us with any questions or concerns by filling out our convenient online contact form, or by calling us at 1-888-829-2783.

What are some common issues and fixes for diaphragm pumps?

Most of the time, diaphragm pumps operate smoothly – even in challenging conditions. However, worn parts or installation errors can cause performance issues or cause the pump to cease functioning altogether. Some common problems encountered during diaphragm pump operation and their solutions are as follows:

- Pump fails to cycle, or cycles once and stops. Check for worn or damaged valve balls, seats, or o-rings and replace them as needed. If the pump is in good condition, make sure the air valve is clean and unobstructed and verify that the pump is not over-pressurized. If the pump is under too much pressure, install a pressure relief valve.

- There are air bubbles in the liquid being expelled. Look for loose parts, paying close attention to the suction line, manifold and manifold seals, and O-rings. If there are no loose parts, this problem may indicate the diaphragms need replacing.

- The pump air valve freezes. This issue usually indicates there is too much water in the pump’s air supply. Take steps to reduce moisture content in the compressed air, such as by installing a dryer or filter. 

- Air is leaking from the pump. Tighten the air valve cover and replace any worn gaskets. 

- Fluid is leaking from the pump. Tighten the manifold bolts and inspect the seal between the manifold and seat. Replace seats and O-rings as needed. 

- Pump is not achieving prime. Try reducing the air inlet pressure. If that does not work, inspect the pump’s outlets and inlets to make sure they are open and not clogged with debris. If the pump still will not prime, you may need to replace the check valve ball and seat or the manifold O-rings. 

What are the best industrial applications for diaphragm pumps?

Diaphragm pumps are used across many different industries owing to their versatility, efficiency, and durability. Some of the top industrial applications for diaphragm pumps include wastewater treatment, manufacturing, food and beverage processing, agricultural spraying, building and construction, mining, and oil and gas production. Diaphragm pumps are also used in the pharmaceutical, automotive, transportation, and aerospace industries. 

As well as manufacturing pumps for industrial uses, WasteCorp supplies pumps to small businesses (such as hotels, restaurants, and marinas) and provides pumps to homeowners who need them for water removal or DIY projects. 

Learn more about our case study: South Texas Waste Transfer Station

What is different about a Mud Sucker Diaphragm pump?

For over 30 years, Wastecorp has been one of the most trusted names in the pump manufacturing industry. With an emphasis on sustainability and environmental responsibility, we design pumps that prevent leaks, spills, and contamination while offering exceptional performance. Our pumps are built with premium materials, including Santoprene, Neoprene, and stainless steel, which gives them an extremely long flex-life and the ability to handle corrosive and abrasive liquids. 

In addition to designing and manufacturing our pumps exclusively in North America, we offer customers an unmatched array of customization options. Unlike other manufacturers, we’ll help you select the best diaphragm pump materials for your application and work with you to design the perfect pump for your specific task and fluid handling needs. We also offer comprehensive customer support and a complete selection of diaphragm pump spare parts, making it easy to repair and maintain our Mud Sucker diaphragm pumps. 

Video & News

Mud Sucker Diaphragm Pump Manufacturer

Wastecorp designs and manufactures the Mud Sucker Diaphragm Pump product line. This brand is available in single and double diaphragm configurations. This video shows a case study of how a diaphragm pump can be used.

Industrial Wastewater Case Study

Case study about a Virginia industrial company updating their pumps and wastewater treatment infrastructure to include state-of-the art diaphragm pumps, variable frequency drives and sensors. The pumps transfer wastewater, waste oil and storm water.

Mud Sucker Flapper Valve

Overview of Mud Sucker FAC pumps with flapper valves.

Mud Sucker Double Diaphragm Flapper Valve

Overview of Mud Sucker FAC-DD pumps with double diaphragms and flapper valves.

Mud Sucker Ball Valve

Overview of Mud Sucker B pumps with ball check valves.

Mud Sucker Double Diaphragm Ball Valve

Overview of Mud Sucker B-DD pumps with double diaphragms and ball check valves.


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