How to Save Money When Buying Filter Press Feed Pump

We stock replacement parts for any filter press brand including:

If you want to learn more, please visit our website SGB.

*JWI               *Siemens                *Sperry                *Shriver      

Filter Presses in and of themselves have an extremely long life expectancy due to the heavy duty construction and simple design.  This is why acquiring a used press is such a great way to save money on a quality piece of equipment.  However, whether your press is new or used, you will need replacement parts.

We know how important it is to quickly replace a cloth that has been, perhaps, torn or worn out.  This is where our years of sewing expertise and stock parts become advantageous to you.  Most orders for spare parts can be shipped the same day.

We also stock filter press plates.  So whether you are expanding your existing press or in need of an emergency filter press plate replacement, we have the plates you need.  Met-Chem stocks a variety of filter press plate sizes and can ship immediately. 

Filter Press gaskets are another common replacement item.  We stock 100’ spools of filter press gasketing material.  You will be able to get your press back up and running leak-free in no time.

In addition to the replacement parts, we stock a large volume of used filter presses from the brands listed above and many more in our warehouse in Cleveland, Ohio. 

See our used filter press page for more information on the other filter presses we stock.

Filter Press Diaphragm Pumps

Filter Press Diaphragm Pumps

Air operated diaphragm pumps are used with filter presses to pump sludge from the bottom of the sludge holding tank into the filter press.  These pumps are ideal because they can handle the slurry which is generally about the consistency of a milkshake.

The diaphragm pump usually starts out slowly and gradually ramps up.  Once the pump starts to slow back down, (30-60 seconds between thrusts), it is usually an indicator that the filter press is full.  At this point, the feed pump should be turned off and the valves on the filter press closed as the operator prepares to operate the air-blow-down process.

The diaphragm pump can be manually turned up or an Automatic Pump Control system may be added.  This starts the pump at 25 psi, then moves up to 50, 75 and finally 100 psi which is standard operating pressure for the pump.

Met-Chem provides diaphragm pumps in the following sizes:  1”, 1.5”, 2” and 3”.  The material of construction ranges from cast iron, aluminum, polypro or stainless steel.

With the purchase of a new Met-Chem filter press, Met-Chem can mount your air operated diaphragm pump to the legs of your filter press.  This option also includes a flex hose that connects the outlet of the diaphragm pump to the center feed pipe, an air filter, a regulator, and an oiler.   We can also provide a mounted diaphragm pump for your existing press.

For more information, please visit Filter Press Feed Pump.

Spare Parts Kit

Spare Parts Kit

Met-Chem is pleased to offer our spare parts kit which includes our 5 piece center feed pipe assembly, a head, tail, and 2 intermediate filter press cloths, and 100 foot of gasketing material.  These are essential items for the operation of the filter press. A cracked pipe, ripped cloth, or torn gasket can happen anytime and having these items in your stock will ensure you will be back up and running in no time. Precoat System

Skid-Mounted Precoat Station

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Skid-Mounted Precoat Stations are custom built to work with any filter press (minor changes in the plumbing may be required). The basic precoating system includes a skid-mounted platform with a holding tank, mixer, controls, and a diaphragm pump. The precoat station can also be used as an Acid Wash System to clean filter cloths and maintain high levels of filtration.

The basic precoating operation involves mixing a slurry of filter aid, usually a combination of water and Diatomaceous Earth. The slurry is then pumped into the Filter Press and then recirculated into the holding tank. This process is run until the liquid appears to be clear or until the appropriate depth of precoat is achieved.

Skid-Mounted Precoat Stations can be customized and operated differently depending on the process of your specific application. Contact us for advice on the benefits of these portable skid-mounted systems.

Learn More about a Skid-Mounted Precoat System

Batch Waste Treatment Systems

Batch Wastewater System

When your daily wastewater needs to be collected and treated by a chemical process, a Met-Chem Batch Waste Treatment System can be built to accompany your filter press.

Learn More about a Batch Waste Treatment System

Batch Treatment System are Customized for your Application. Some Features and Options for your system may include:

• Wastewater Treatment Holding Tank
• Day or Chemical Tanks
• Mixers
• Metering Pumps
• Diaphragm Pump
• Control Panel
• pH Probes & Controls
• Level Probes & Controls
• Skid Mounted Platform

Center Feed and Manifold Filter Press Upgrades

Filter Press Center Feed and Manifold Upgrades

A center feed pipe assembly on a filter press should be able to last many years the same way any other type of plumbing will. However, if the material of the center feed pipe assembly is not strong enough to handle the corrosiveness of the solution running through the press then the center feed pipe assembly can corrode. 

For cases of corrosive material or high temperatures, Met-Chem is pleased to offer upgrades from our standard center feed pipe and manifold.  We are able to upgrade to CPVC, Carbon Steel, 304 or 316SS Stainless Steel, and Titanium. Met-Chem can also provide additional manifold upgrades such as automatic valves

The center feed pipe is what connects the filter press to the product that needs to be filtered. The center feed pipe assembly consists of five different parts. The first part is the lock nut which fastens on the center feed pipe and connects to the outside of the press. The pipe, which is the second part, goes through the head of the filter and all the way through the head plate of the filter press. The third part of the center feed pipe assembly is a gasket which ensures the assembly is watertight. Next, is the clip nut seat which fastens the assembly to the head plate. This part of the assembly will always stay in place unless you are replacing the assembly or one of its parts. The final part, the cloth clip nut, will be removed often as it is screwed into the cloth clip nut seat after the head cloth is put on the head plate. The cloth clip nut needs to be tightened in order to keep the cloth in place. Met-Chem provides a tool to make this process easier. The Met-Chem Spanner Wrench is a specially designed tool that can be used to loosen and tighten the cloth clip nut when changing the head cloth on a filter press. This tool can be very helpful as the cloth clip, but it has a design that requires a unique tool to tighten and loosen it.

Sludge Dumpster

Filter Press Sludge Dumpster

Sludge Dumpsters are used directly under the filter press to catch the sludge that is released from the filter press during cleaning.  The dumpster is on casters for easy mobility.  They are also equipped with forklift slats for convenient use with a tow motor.  The operator can move the dumpster to a roll-off container with the forklift and then pull the release pin for easy emptying.  The dumpster can then be snapped back to the upright position and put back under the filter press. Longer Legs and Filter Press Sludge Disposal Chute

Longer Legs and Sludge Disposal Chute for Filter Presses

Met-Chem can provide longer legs and a disposal chute on your new filter press.  This is especially useful if you are releasing the sludge from the press into a sludge bag or a drum.  The chute will direct the sludge directly into your container.  If you plan to use a sludge disposal bag, we can add hooks to the chute so that the sludge bag can be hung from the frame of the press.

For some larger presses, we can build a catwalk along with the disposal chute in order to accommodate a roll-off container.

If you want to learn more, please visit our website Horizontal-Shaft Axial Flow Pump.

Filter Press Plate Shifters

Filter Press Plate Shifters

Our standard filter presses can be operated manually. However, Met-Chem manufactures four types of filter press plate shifters to make operating your filter press easier, safer and more efficient. Manual filter presses require more time and attention than the same filter press with an automatic plate shifter.

• Semi-Automatic
• Pendant
• Fully Automatic
• Super Shifter

For some larger presses, we can build a catwalk along with the disposal chute in order to accommodate a roll-off container. Backer Plate for Smaller Filter Press Batches

Filter Press Backer Plate for Smaller Batches

If you produce varying size batches of wastewater and subsequently less sludge, or if the overall volume of waste that is generated at your facility has been reduced, you can still utilize your existing filter press.  With the purchase of a backer plate, you can alter the holding capacity of your press to meet your individual batch needs.  A backer plate provides support to the tail plate so that it can be moved anywhere in the plate pack in order to isolate the chambers between the feed end and the tail plate.  If you try to use the tail plate in a different position in the plate pack without the backer plate, you run the risk of damaging the chamber of the tail plate.  There are different kinds of backing plates.  Some are made of plastic and look much like a standard plate; we prefer to use ~3/8” thick flat stock steel and cut an outline of a plate.  This is clearly visible when placed in the stack so that all around know that the filter press is not at full capacity.  This steel backing plate is then painted with the same two-part epoxy coating as the frame of the filter press. Automatic Filter Press Pump Control System

Automatic Filter Press Pump Control System

The Met-Chem Automatic Pump Control System is used in conjunction with an air operated diaphragm pump to automatically increase the feed pump pressure at predetermined intervals during the filter press filling cycle.  If the pump runs at a higher initial pressure, the filter cake will become a packed layer of solids on the filter cloth.  This will restrict the flow of the slurry thereby creating a very dense coating of the filter cake.  This can cause the cloths to blind off and not allow further filtration.  Starting at a lower feed pressure allows a soft layer of slurry particles to be deposited on the filter cloth.  This initial layer becomes the filtering media which will enhance the filterability of the incoming slurry. The automatic pump control system automatically and gradually increases the feed pressure in four stages during the filling cycle.  These stages are adjustable to suit your slurry and solids concentration.  However, it is commonly set at increments of 25 psi.  (25, 50, 75, 100).  By monitoring the feed pump flow sensor, during the final pressure stage, the operator will be able to determine the cycle completion. The Automatic Pump Control System also incorporates a low hydraulic pressure safety shut down the device.  If there is not enough hydraulic clamping pressure present, the system will completely shut down, eliminating any possible leaking from between the filter plates. The pump control system allows your filter press to run at its optimum efficiency creating dryer filter cakes, reducing disposal costs, reducing operator time and increasing the life of your filter cloths and feed pumps. This system can be incorporated with a new filter press from Met-Chem, a used unit or even your own existing press. Start-Up Assistance / Installation