Options for Stainless Steel Housings

Description

In applications where space is limited and maintenance is critical, our Inverted (IVT) housings provide an ideal solution. All line connections—including inlet, outlet, and drain ports—are in the head of the unit. This design allows all tubing to remain in a single plane within the panel and simplifies element servicing, as no lines need to be removed to replace the element.

The drain port is positioned at the lowest point in the head module to quickly evacuate liquids and reduce entrainment. The element is maintained in a vertical orientation to ensure proper liquid drainage, unlike other head-port drain assemblies that are typically mounted horizontally, which can result in slower drainage and increased downstream carryover.

Applications and Features:
• Quick and easy element service
• Efficient liquid drainage
• Space-saving design for panel-mounted installations
• Optional integration with a membrane separator (as in GMS170)

Ordering Information:

Inverted housings can be ordered with a bowl drain connection (e.g., IV112) or without a bowl drain (e.g., IV116). The traditional drain bowl connection can alternatively be used as a vent or gauge port.

Many of our filter housings can be converted into “bubblers”, enabling a gas sample to pass through a liquid. The standard element retainer is replaced with a hollow stack featuring a small orifice, which bubbles the sample stream through the liquid.

Applications include:

• Scrubbing unwanted components from the sample stream
• Humidifying a sample stream

Ordering Information:

To convert a standard filter to a bubbler, simply add the suffix “B” to the housing code. Transparent housings without drain ports are preferred, as they allow continuous liquid level monitoring and eliminate a potential connection point.

In compressed gas and sample process applications, large volumes of liquid and high particulate loads can overwhelm filter elements, reducing their life and performance. Flooding of coalescing elements or blinding from particulate can occur if proper prefiltration is not provided.

A simple solution is a catchpot, which replaces the filter element with a hollow stack. The stack dramatically changes the airflow direction, acting as a baffle to remove the majority of contaminants. Catchpot housings should be used upstream of a final filter to capture any residual condensation or particulate.

Ordering Information:

All filter housings can be converted to catchpots by adding the suffix “CP” to the housing code.

Our Extensive Material Capabilities for Custom Filtration Solutions

United offers a comprehensive library of exotic materials designed to meet the demands of specialized filtration applications. Our capabilities include the fabrication of custom filter housings and elements from a wide range of metals tailored to suit diverse operating environments.

Whether your application demands corrosion resistance, high-temperature durability, or unique mechanical properties, United provides filtration solutions built to perform under the most challenging conditions.

Filter Elements

• Available in Hastelloy and Monel
• Many sizes in stock for immediate delivery

Material Certifications

• Full certifications are available for all housings and elements upon request.

All standard housing designs are offered in Exotic Materials.

We also can Silconert® (Inert Silicone Coating) our 316L Stainless Steel Filter Housings for H2S, Mercury, Ammonia, and Active Compound Sampling and Transfer.

Stainless steel filters, due to their high adsorptive surface area, can capture H₂S, mercaptans, and other sulfur compounds, potentially compromising analyzer performance. In continuous emission monitoring systems (CEMS), sulfur adsorption can delay accurate measurements by up to 90 minutes or more.

SilcoNert® 2000 provides a complete passivation treatment for stainless steel surfaces, including filter housings and elements. This inert coating:

• Penetrates even the smallest pores of stainless steel surfaces
• Prevents adsorption of sulfur compounds and mercury at parts-per-billion levels
• Reduces moisture contamination
• Improves overall sample system performance

Disposable filter media are inherently inert and do not require SilcoNert® treatment; however, stainless steel elements should be treated to create a fully inert flow path.

Applications:

• Automotive emissions testing
• CEMS and other high-sensitivity sulfur compound analyses
• High-temperature operations where galling and element sticking may occur

Ordering Information:

Any stainless steel filters supplied by United Filtration Systems/Headline Filters can be SilcoNert® 2000 treated, with an estimated delivery time of 2–3 weeks. The coating also facilitates element removal by creating a smooth surface, particularly beneficial for heatable H-series housings.