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Products from MAHLE Industrial filtration are known internationally for their superior quality, high efficiency and value. Serving not only the oil & gas production, transmission and refining markets, Nowata-/ProGuard products also offer solutions for industrial liquid and gas filtration, applications including food, biofuels, chemicals, petrochemicals, and water.

Our innovative ProGuard backwash filtration technology offer a full range of products for refineries around the world in applications such as hydrocracking, hydrotreating, and delayed coking. Nowata cartridge, bag, and basket strainer filter housings are available for pressure up to 6000 PSI, with permanent or disposable media to meet specific customer requirements.

Our US headquarters and manufacturing facility is centrally located in Nowata, Oklahoma, USA.

MAHLE Industrial filtration, with Nowata/ProGuard products, provides a wide range of expertise in highly engineered, and custom designed pressure filter vessels in a variety of materials which enables us designing the filter system that meets your demands.

In-Line Liquid Basket Strainers Filter Housing
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The Nowata ProGuard Filtration "K Series" In-Line Liquid Basket Strainer Filter Vessel effectively removes dirt, pipe scale, and other contaminants from process liquids such as water, chemical and petroleum products. Standard inline strainer housing material is 316 Stainless Steel or Carbon Steel. These liquid strainers come with a standard 9/64" perforated Stainless Steel basket.

In-Line stainless steel Liquid Strainers filter with Optional Davit Arm and Quick Opening Swing Bolt Closure.  The Nowata In-Line Basket Strainer filter vessel design provides a large sump area at the bottom of the basket for particulate accumulation. This design utilizes the filter more efficiently. The 316 Stainless Steel strainer basket rests on a steel support ring. Optional mesh lining for strainer baskets and various materials for o-rings are available. A vent located in the housing lid and a drain port allow fast evacuation and rapid filling. Standard vent size is 1/4 inch. Inlet/Outlet sizes available from 1/2 inch to 36 inches. Housings that are permanently piped can be opened with simple tools without disturbing the piping. Swing bolts or through bolts allow easy opening and closing of the swing-lid; no need to remove any hardware. As a standard finish, all vessels are blast cleaned and the outside painted with machinery enamel. Optional alloys and connection types are also available.

Strainers shown are vertical configuration, horizontal configuration is also available.

Gas Filter Housings

Nowata Filtration Gas Filter Housings work to remove liquids and dirt from many gas applications including, polyethylene, benzene, methane, methanol, ethene, ethyne, propane, hydrogen, nitrogen and hydrocarbons, just to name a few.  Standard Materials used in construction include: 316 Stainless Steel, 304 Stainless Steel & Carbon Steel.

Exotic Materials include:

Hastelloy, Monel, Inconel, Copper, Nickel, 5-Chrome, and 9-Chrome.

See below for specific gas filtration applications.

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Filters for BioFuel Filtration

Amafilter and Nowata products are engineered and manufactured to meet stringent quality requirements and are rigorously tested before leaving our manufacturing plants. When you choose amafilter or Nowata products, you can be assured that you are buying leading edge, high quality and cost effective products from a leading company that has set the standards for biofuel filtration for over 30 years.

Typical filtration processes in biofuel production include:

Filtration of incoming feedstock such as cold pressed seed oils for pure vegetable oil fuel, crude rendered fat for fuel applications and pre-treatment of refined oil.
Filtration of clay, carbon and silica absorbents from refined oil.
Removal of haze and sterols from methyl ester (biodiesel).
Filtration of glycerin to remove solids or activated carbon.
Final product filtration.

4000 Series Refinery Filters - Backwash Filtration Systems for Refineries

The catalysts used in many of today's processes for hydrocracking, hydrodesulfurizing and hydrotreating are designed for long service life, requiring more effective removal of solids from the feedstock to avoid premature and expensive replacement due to plugging. The cost of replacing a catalyst load is expensive, often as much as twenty to thirty times the price of an effective tubular filter system. 4000 Series tubular backwash filters, ASME Code designed and stamped, provide cost effective continuous protection for the life of catalytic reactors. The ProGuard Filtration System is designed for high temperature, high pressure critical refinery applications where low maintenance, continuous operations are a necessity.

Pressure Leaf Filter Housings

The amafilter group filter leaf elements are used to purify processes and protect critical components in a broad array of industries. amafilter group pressure leaf filter elements are used in:

Food and Beverage Applications
Edible Oils (Vegetable & Animal Sources)
Sugar Processing
Corn Processing
Sweeteners
Pharmaceutical
Water
Chemicals
Oleo - Chemicals
Oils and Resins
Amines
General Industrial
Mineral Processing
Biofuels

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H Series - High Flow Cartridge Filter Housings

Especially Suited for Petrochemical Applications
Designed for Use with Nowata Filtration High Flow Cartridges

The Nowata Filtration H Series, High Flow, Multi-Cartridge Horizontal (and Vertical) housing has the unique design of assuring the elements are seated in the mount receptacles before the closure can be tightened. This prevents improper reseating of cartridges prior to being placed into service and also keeps possible system back pressure from dislodging the elements from their respective seals. The design also includes an internal element support plate to aid in dirty element removal without damage to element supports from dead weight deflection. Closure is conveniently located close to the operators waist making change-out quick and effortless.  Ease of operation and famous Nowata Filtration quality make this vessel the clear choice.

Bag Filter Housings

The Nowata Filtration WL Series Low Profile Bag Housings effectively remove dirt, pipe scale, and other contaminants from process liquids such as water, chemicals, and petroleum products. The Stainless Steel design is highly suited for corrosive applications. These units can be used with standard #2 size bags or the accompanying standard 9/32 inch perforated basket as a strainer.

These high quality industrial and commercial service vessels are designed to withstand years of field and plant operation. In applications requiring high volume filtration, the WL Series Low Profile Bag Housing will provide rugged and dependable service at a price that makes them the sure choice. The design of the housing allows the use of standard and high-efficiency bags and a wide variety of o-ring materials with no change in design. This means that whether its hydrocarbons, glycol, coolant, inks or water, the WL Series Low Profile Bag Housing from Nowata Filtration will fit the need.

SNB Side Entry, Single Bag Filter Housings NEW

The Nowata Filtration SNB Side Entry Series of single bag filter housings, are economical and durable filter housings used in process applications such as water, chemical, food and general industrial. Standard housing material is 316 Stainless Steel or 304 Stainless Steel with Electro-Polishing as an option. These affordable, high quality industrial and commercial service filter housings are designed to withstand years of field and plant operation.

TNB Series TNB Top Entry, Single Bag Filter Housings NEW

The Nowata Filtration TNB Top Entry Series of single bag filter housings are economical and durable filter housings used in process applications such as water, chemical, food and general industrial. Standard housing material is 316 Stainless Steel or 304 Stainless Steel with Electro-Polishing as an option. The standard configuration of these units assures that they can be easily incorporated into your system.

Single Top Entry Bag Filter Vessel by Nowata Filtration

SINGLE W8T (Over the Top) Bag Filter Housings. Standard Nowata top entry bag filter housings are ASME code. (Non-code vessels are also available.) All wetted parts are 316 Stainless Steel. Carbon Steel and other materials are also available. Standard liquid filter housings feature 150 PSI working pressure, Adjustable leg assembly and Standard #2 bag size (7" x 30"). These high quality industrial and commercial service filter housings are designed to withstand years of field and plant operation.

Duplex (Over the Top) Bag Filter Housings

These DuPlex filter housings are built as an optional design configuration and may be more economical to use than the standard MultiPlex configuration. Available with 2 or 4 housings. Although other construction materials are available, the standard material of construction is 316 Stainless Steel. The valves are butterfly wafer style with EPDM seals and 316 Stainless Steel disc & stem. Flanged ball valves also available. The design of the filter housings allow the use of standard and high efficiency bags and a wide variety of o-ring materials with no change in design.

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MultiPlex Top Entry Bag Filter Vessel by Nowata Filtration MULTIPLEX (Over the Top) Bag Filter Housings

Available with 2, 3, or 4 "Plexed" housings. These Nowata Filtration vessels are available in valved or non-valved configurations. Isolation valves allow one vessel's media to be changed while the other is left on stream filtering. The modular design allows multi-directional flow inlet & outlet, as well as adding additional filtration if needed.
The Nowata Top Entry MultiPlex Bag Housing will provide rugged and dependable service at a price that makes them the sure choice.

Nowata MULTI-ROUND Bag Filter Housings (Nowata Filtration) MULTI-ROUND Bag Filter Housings

The Nowata Multi-Round Bag Filter Housing comes standard with all wetted parts 316 Stainless Steel or Carbon Steel, with other materials available. 150 PSI working pressure, higher pressures available. Designed for use with heavy duty, high efficiency filter bags and standard thickness conventional bags.

Outside diameter from 20" to 48" and higher, nominal flow rates from 200 to 5000 GPM and higher. Available with 3 to 23 baskets and up.

W4 Model Liquid Bag Filter Vessel - Nowata Filtration W4 Model Liquid Bag Filter Vessels

The Nowata W4 Model Liquid Filter Bag Vessel effectively removes dirt, pipe scale, and other contaminants from process liquids such as water, chemical and petroleum products. It can be used with the standard W4 size bag or the perforated bag basket support as a strainer.

Standard options of Carbon Steel or 316 Stainless Steel, as well as FNPT or Flanged Inlet / Outlet are available or the unit can be customized to meet specific needs. Designed for pressures up to 500 PSI with flow rates to 50 GPM.

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W6 Model Liquid Bag Filter Housing - Nowata Filtration W6 Model Liquid Bag Filter Vessel

The Nowata W6 Model Liquid Filter Bag Vessel offers 18 and 30 inch deep bags in Carbon Steel or 316 Stainless Steel.

This filter vessel handles flow rates to 100 GPM and up to 150 PSI working pressure. The W6 Model filter offers adjustable support legs, Stainless basket and Viton lid seal with differential, drain and vent ports. It can be used with the standard #8 or #9 size bags or the perforated bag basket support as a strainer. Options include mesh lined strainer baskets and ASME Code stamp.

Nowata W8 Model Liquid Bag Filter Housings W8 Model Liquid Bag Filter Housing

The Nowata W8 Model Liquid Filter Bag Housing offers 15 and 30 inch deep bags in Carbon Steel and 316 Stainless Steel.

This unit handles working pressure rates to 150 PSI and flow rates to 220 GPM. Vessel can be used with the standard #1 or #2 size bag or the standard 9/16" perforated bag basket support as a strainer. Options include mesh lined strainer baskets and ASME Code stamp.

Backwashable Filters Systems

ProGuard is a dedicated line of tubular backwashable filters. This means that the entire direction of the company, from design of the product to the sales force, is focused on the efficient design, production and use of these filter products in the field. Our company and our products are built around the concept of meeting our customer needs. Fast needs assessment and quotes, flexible designs and manufacturing, and an experienced field sales force -- they all add up to provide you with responsiveness and the exact filtration system you need. These custom engineered systems are designed to meet the unique requirements of refinery and petrochemical applications, as well as pulp & paper and other industrial uses that need backwash filtration. For information on standard media offered by ProGuard Filtration Systems, click here.

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Dynamic Balance

Automated ProGuard tubular backwash filters are designed to provide continuous, maintenance-free operation. The system continually monitors the dirt load coming into the filter and automatically decides to enter into the backwash cycle to clean the filter media.

Better Filter, Better Filtration

The concept behind these filters is to allow continuous operation of your system, with filter cleaning taking place as needed. Permanent filter media reduce your ongoing costs and eliminate the need to dispose of contaminated filter media.

How ProGuard Backwash Filters Work

During normal operation, dirty, unfiltered fluid enters the ProGuard filter system through the filter media in an outside to inside flow path. Clean fluid then exits the filter and returns to the process through the outlet header.

PLC Automation

ProGuard pioneered the use of Programmable Logic Controllers (PLC) in tubular backwash filters. These highly dependable, programmable controllers activate the valve operation for the backwash cycle. A NEMA cabinet enclosure houses the PLC unit, and can be specified in a rain-tight or even explosion-proof configuration.

Cartridge Filter Vessels


HF Series - High Flow, Filter Housings

This new range of high flow filter housings was designed to optimize the performance of the new Trapper HF Series High Flow Filter elements. HF Series housings can also be custom engineered in a wide range of materials and pressure ratings to meet the unique requirements of a demanding application.

1NB Series - Quick Change, V-Band Clamp Closure

These Single Cartridge, High Pressure, filter housings have a V-Clamp style closure for quick change-out of the cartridge. Available in 1, 2, or 3 size cartridge models, with a single cartridge being 10" in length. These low cost, high quality filters are designed for industrial and commercial service and are ideal for many high pressure (working pressure to 750 PSI) glycol, amine, water, industrial chemical and corrosive applications.

1NT Series - Quick Change, Tie Rod Bolt Closure

Designed for quick cartridge change-out, the T-handle style closure eliminates the need for wrenches or tools.  250 PSI working pressure, Stainless Steel construction standard, In-Line style inlet and outlet, these housings are in stock and ready for immediate shipment

1L Series - Low Pressure Filter Vessels

Designed for a variety of general industrial uses as well as low pressure glycol and amine applications. "1L" series cartridge filter vessels feature a one-piece carbon steel body for easy cartridge replacement and a steel head that mounts directly in the flow line.

1S Series - High Pressure Filter Vessel Carbon Steel

These high-pressure cartridge filter housings are ideal for secondary recovery water floods, disposal injection, or any petroleum application where a low-cost, durable filter is required. The "1S" series, made of carbon steel, is especially suited for glycol filtration in gas treatment systems. Unlike other brands of cartridge filter housings, they come available in carbon steel with epoxy lining for greater corrosion resistance.

1SY Series - High Pressure / Carbon-Stainless-Hastelloy Vessels "1SY", "1UY", "1HY" Series

Use these high-pressure cartridge filter housings in demanding situations requiring many fast and easy cartridge changes.

These products feature long-life housings in the following materials:

Carbon steel "1SY" Series Housings,
316 stainless steel "1UY" Series,
Hastelloy C276 "1HY" Series Housings

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1U Series - High Pressure / Low Cost "1U" Series - High Pressure, Stainless Steel

These high-pressure filters are ideal for secondary recovery water floods, disposal injection, or any petroleum application where a low-cost, durable filter housing is required. The "1U" series is made of long-lasting 316 stainless steel.

"A" Series - Low to High Pressure / Med. Flow Rates

Medium Flow Liquid Filter Vessels
Choose from low or high pressure specifications in this hardworking series of petroleum production and gas dehydration fluid filters for medium flow rate applications.

"B" Series - High Flow Cartridge Filter Housing

High Flow Liquid Filter Vessels
Especially suited for high flow rate applications, these long-life filter housings offer a bolted closure for a positive seal and easy maintenance.

"N" Series - Low Pressure / Med. Flow, general applications

Industrial, Multi-Cartridge Filter Vessels
These economical, low pressure cartridge filter vessels are ideal for all types of general applications. These housings are offered in two design styles, Medium or High Flow.

"P" Series - Pleated Cartridge Filter Housing

Especially suited for use with the Nowata Filtration High Flow 644 "PC" Series Pleated Filter Cartridges, these high flow housings are designed for use in many industrial applications.

Trapper® Filter Cartridges and Charcoal Canisters

The Fibers and Resin used in the Trapper® are chemically compatible with a wide range of fluids and gases. Typical filtration applications include:

Fresh Water
Salt Water
Ethylene Glycol
Natural Gas
Air
Hydraulic Fluid
Hydrocarbons
Paint
Coolants
Solvents
Lubricating Oil
Kerosene

Resin-Bonded Polyester Cartridges

NP Series Trapper Cartridges
Polyester Cartridge for High Volume Filtration of Fluids & Gases,
Depth-type Cartridge with High Dirt Holding Capacity.

String Wound Cartridges - Various Materials

W Series Wound Trapper Cartridges

Materials Include:
Cotton over 304 Stainless Steel, Polypropylene over Polypropylene, or Glass Fiber over 316 Stainless Steel.

High Flow HF Series Polypropylene Cartridges

The new Trapper HF Series filter elements are designed to provide high flow rates and high contaminant holding capacities at minimal initial pressure drops. The elements are constructed of 100% polypropylene filter media with polypropylene center core, end caps and a rigid outer cage. The innovative pleat structure of this Trapper element optimizes filter life while minimizing initial pressure drops.

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Pleated Cartridges

P Series Trapper Cartridges - The Pleated Trapper, available in Either a Cellulose or Polypropylene Configuration.

Charcoal Canisters

NC Series Charcoal Canisters For Removal of Oils and Hydrocarbons in Gas Treatment Systems

Reverse Flow & Forward Flow

Filter-Separator & Coalescer Gas Cartridges
NFG and NFF Series Forward Flow Filter-Separator Cartridges and Reverse Flow Filter-Coalescer Cartridges for high flow and high temperature applications.

Gas Coalescing Filter Cartridges

PGR & VGR Series Compressed air coalescers and particulate removal filters. They will remove over 99.99% of oil and water aerosols from air and gas streams.

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Our Facilities

MPI Warehouse Specialty Co. maintains three stocking warehouses convenient to major production areas.

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