Polypropylene Bag Filter Housings: The Ultimate FAQ Guide

Before you import polypropylene bag filter housing, read this guide.

It has all information you’re looking for about these bag filter housings such as design, configuration, connection mechanism, components and working principle, amongst others.

Keep reading this guide if you want to be an expert in these filter housings.

What is Polypropylene Bag Filter Housings?

This is a casing that houses bag filters.

As the name suggests, this filter housing is made from polypropylene material.

Therefore, you will install you bag filters in this housing.

After which, you will connect it to the piping system.

Bag filter and bag filter housing

What are the Benefits of Polypropylene Bag Filter Housings?

You can use Polypropylene Bag Filter Housings due to the following reasons:

Can have supporting legs
Complete propylene construction
Compact design
Ultraviolet resistance
Light weight
Durable
The bag elements range from 1-800 Microns
Threaded outlet-inlet connections
High flow rates of up to 200 LPM
Bolted lid
Wide chemical compatibility
A low pressure drop design
Easy to install and maintain

What are the Limitations of Polypropylene Bag Filter Housings?

Here are some of the limitations of a Polypropylene Bag Filter Housing:

Cleaning and maintenance of this device is a bit complex considering having to clean the inner parts and inner walls as well as inlets and outlets.
You need a steam/high pressure cleaner to clean the device well.
If not secured properly, the Polypropylene Bag Filter Housing could experience continuous movement/shaking.
This will impair efficient operation of the device in the filtration system.
If your Polypropylene Bag Filter Housing has a screw lid it can wear out fast.
Thus, it may not operate optimally.
The constant opening and closing of the lid when in use makes the propylene thread wear out.
As such, the housing is not securely attached to protect the bag filter.
Some of the Polypropylene Bag Filter Housings are costly to design and build.

Where should you use Polypropylene Bag Filter Housings?

You can use Polypropylene Bag Filter Housings in both commercial and residential application.

Some of the places where you can use Polypropylene Bag Filter Housings are:

Water treatment plants
Seawater applications
Domestic RO
Desalination
Textile

What are the uses of Polypropylene Bag Filter Housings?

Polypropylene Bag Filter Housings are mainly used to encase the bag filters.

They facilitate the operation of the filtering systems.

The uses of this device include:

Bag filter housing

Used in corrosive liquid processing.
Used in the filtering of food products, plating solutions, corrosive chemicals, acids and filter water.

What is a Polypropylene Bag Filter?

Polypropylene bag filter

It is a device made of propylene material and used as part of the filtering system.

It is a depth type filter capable of trapping contaminants in different depths to achieve the requirements of filtration.

It is made through quality inspection cutting, felting, seaming or welding process.

What are the Benefits of Polypropylene Bag Filter?

Below are some of the benefits of Polypropylene Bag Filter Housings:

There is more choice for fabric treatment and weights
More options for sizes, finishes, coatings and configurations
Excellent dimensional stability
High durability
Has an excellent combination of durability, airflow and filtration efficiency
Excellent resistance to mechanical damage over the life of the device

Are there Limitations of Polypropylene Bag Filter?

Even though they are effective in many applications, polypropylene bag filter present some shortcomings.

Some of these limitations of Polypropylene Bag Filters are:

Ultrafine particles easily pass through the bag filter hence not undergoing any filtration. There is limited trapping capacity, and this contributes to the inefficiency of the device.
Customized polypropylene bags are costly compared to the standard ones.
To make a customized bag filter, you need additional materials, more complex designs and experts.
Some of them have lower filtration qualities compared to bag filters made from other materials.

How does Polypropylene Bag Filter Housing compare to Stainless Steel Filter Housing?

Polypropylene Bag Filter Housing and Stainless-Steel Filter Housing are two widely available devices in the market used to house bag filters.

Below are some of the ways in which the devices compare:

Polypropylene bag filter housing

Stainless steel bag filter housing

· Materials

While a Polypropylene Bag Filter Housing is made using polypropylene material, Stainless Steel Filter Housing is made using stainless steel material.

Due to these chosen materials, the devices have excellent chemical compatibility and high corrosion resistance.

· Applications

Polypropylene Bag Filter Housing is highly chemical resistance hence suitable for seawater applications.

Stainless Steel Filter Housing are suitable for liquid filtration applications. It is also resistant to rust, salty water and most chemicals.

In cases where the Stainless-Steel Filter housing is incompatible with the fluid, Polypropylene Bag Filter Housing can be used instead.

· Cost

Both Polypropylene Bag Filter Housing and Stainless-Steel Filter Housing are sold at different costs in the market.

The cost depends on the material used in their manufacture, designs, specific manufacturer and connection types among others.

Is there Size Limitations for Polypropylene Bag Filter Housings?

No, there are different sizes of Polypropylene Bag Filter Housings.

This device comes in size 1 and 2 for applications where materials such as stainless steel are incompatible with the fluid that is to be processed.

A sample Polypropylene Bag Filter Housings can be size Dia 4″ x 10″ Long, Dia 4″ x 20.

The length of the device will depend on the length of PP bag filter same as the diameter.

Which Material is used to make Polypropylene Bag Filter Housings?

Just as the name suggests, this device is made using propylene material.

However, not all parts of a Polypropylene Bag Filter Housing are made with this material.

Below are the materials used to make the housing and its related parts:

Housing and basket are made using polypropylene material.

Polypropylene material is chemical resistant.

The seal is made using Buna-N material

How do you Connect Polypropylene Bag Filter Housings to Piping Systems?

You can connect Polypropylene Bag Filter Housings to Piping Systems using a threaded or flange connection.

When installing the pipe connections ensure that they are stress free.

Avoid applying additional weight on the pipe connections unless a manufacturer explicitly states so.

Facilitating this connection has to be professionally and according to local and national codes and regulations.

What are the Components of Polypropylene Bag Filter Housings?

For a Polypropylene Bag Filter Housings to function efficiently on different operating conditions/applications, it must have some important components.

Parts of filter housing

These components include:

Housing
Flanged inlet and outlet connections
Top vent
Bottom drain
Built-in valve
Gauge tap
Basket
O-ring

What are the available Designs of Polypropylene Bag Filter Housings?

There are different designs of Polypropylene Bag Filter Housings:

· Multi-bag Filter Housing

Multi-bag filter housing

Multi-bag filter housing is built to hold greater flow rates and greater dirt capacities.

This housing comes with 2-23 bags or more.

It is suitable for solids loading application and higher flow rate.

Not all multi-bag filter housing is a single vessel holding multiple bags.

Some devices are a combination of several single-bag housings, connected together and controlled automatically or manually with valves.

The device, therefore, has a continuous flow filter solution enabling you to divert flow to one or more chambers during a bag change out.

With this design, an application would often need frequent bag changes and can operate with lower costs and maintenance times.

· Single Bag Filter Housing

Single bag filter housing

This Polypropylene Bag Filter Housing design is often constructed with polypropylene material. It has superior corrosion resistance, temperature capabilities and high-pressure.

Single bag filter housing avails technologically advanced filtration capabilities for different applications.

They come in different sizes, models, and pressure ratings.

It is suitable for smaller applications that require solid collections and a lower flow rate.

Single bag filter housing is less complex and highly economical.

How do you Install Polypropylene Bag Filter Housings?

The installation of Polypropylene Bag Filter Housings is easy.

First, you unpack the device and check for any damages.

Take the enclosed data sheets, operating instructions, and illustrations read carefully and then set aside for future use.

Ensure that all the accessories are enclosed.

Also, remove the plastic protective caps from the included flanges.

When installing this device, ensure that you do not reverse the inlet and outlet.

At times, the inlet and outlet may not be market.

In such cases, you should note that the inlet is positioned above the outlet which is often at the bottom.

This inlet allows the flow of liquid into the filter bag so that the direction of flow is from the inside to the outside.

Facilitate secure installation by efficiently bolting the device to the bag filter.

You do not need a separate base frame when installing this device since the housing is built to stand vertically without falling/tipping over.

You have to integrate the device into the right piping system.

You connect the housing to the piping system via a connection to facilitate the flow of liquids during filtration.

Installation onsite is easy because the client gives the parameters such as length, position and diameter.

What should you Consider when Choosing Polypropylene Bag Filter Housings?

You should consider the following aspects when choosing these bag filter housings:

i. Material of Construction

The grade of polypropylene used has to be of high quality.

Besides, the material chosen to make the other parts of the device should be high quality, chemical compatible and meets the FDA regulations.

ii. Operating Conditions

The type of device that you pick must function effectively in the application conditions.

In seawater applications where the conditions increase the risk of rusting, then polypropylene bag filter housing is the best device.

In this case, Steel Bag Filter Housing is not a good option.

iii. Connection Types

When choosing a Polypropylene Bag Filter Housings, you have to pick one that has the suitable connection type.

It could have a flange or threaded or socket connection.

The one you choose should be effective in facilitating the connection to the piping system.

iv. Size/Design

One can choose a single/multi-bag filter housing depending on their intended application.

A single one is as good as a multi-bag filter housing in several aspects such as operation.

Also, you can choose a 1 or 2 size Polypropylene Bag Filter Housing depending on the needs of the client.

v. Cost

The cost of polypropylene filter very depending on a range of factors such as:

Material grade
Size
Type of finish
Application
Minimum order quantity

What Types of Lids can you use in Polypropylene Bag Filter Housings?

The type of lid you chose for your Polypropylene Bag Filter Housings should be durable, easy to use and high quality.

There are two main types of lids as shown below:

Bolted lid
Screwed lid

A bolted lid is better than a screwed lid.

This is because the polypropylene thread on the housing wears out over time.

Of course, this is due to repeated closing and opening of the screwed lid.

This activity damages the lid closure arrangement.

What is the Cost of Polypropylene Bag Filter Housings?

Polypropylene Bag Filter Housings are cost-effective. The manufacture, inspection and maintenance of this device is cost efficient.

Of course, the price per unit will depend on a number of factors such material, design, surface finish and MOQ.

You can request for a quote to get an accurate prices of polypropylene bag filter housing.

How do you Customize Polypropylene Bag Filter Housings?

Polypropylene Bag Filter Housings are customized based on specific drawings and user needs.

Companies often manufacturer Polypropylene Bag Filter Housings from scratch.

They allow a full suite of customizations and options available to customers.

Some of the available options include:

Closure lid type, flange type/connection, pressure design, size of filter bag that it supports, material and the number of bags the device houses.

Overall, a customer gives their Polypropylene Bag Filter requirements depending on the drawing specifications and designs.

What is the Maximum Working Temperature for Polypropylene Bag Filter Housings?

The maximum working temperature for this device is 100 Degree F or more.

This statistic varies depending on the intended use of the Polypropylene Bag Filter Housings.

It also depends on the requirements of a user/client.

Do Polypropylene Bag Filter Housings have a Warranty?

This device has a warranty of around 1 year or more.

During this time when you notice any manufacture defaults you can return it back to the supplier/manufacturer.

However, physical damages inflicted on the device due to improper use, carelessness or accidents are not covered by the warranty.

Some devices have a warranty of around 5 years. The warranty depends on the manufacturer/supplier of the device.

How long will Polypropylene Bag Filter Housings Last?

A Polypropylene Bag Filter Housing lasts around 10 years.

This device is durable and dependable.

However, repetitive use of the device increases the risk of catastrophic failures.

Polypropylene Bag Filter Housing may develop cracks or pits which hamper its ability to function efficiently.

To avoid experiencing these problems, you should probably replace your Polypropylene Bag Filter Housing after five years.

What is the Maximum Working Pressure for Polypropylene Bag Filter Housings?