Looking for 1-1/2" or 2" SS316 Air Filters, Regulators & Lubricators?

Finding large-port pneumatic air preparation components can be challenging, particularly when standard product ranges do not cover the required connection sizes.

While 1/4", 3/8", 1/2" and 1" pneumatic air filters, regulators and lubricators are commonly available, 1-1/2" and 2" stainless steel air preparation components can be more difficult to source.

This becomes especially important for industrial equipment manufacturers, pneumatic distributors and maintenance teams dealing with corrosion-resistant material requirements, existing large-diameter air lines or discontinued equipment components.

Pneutech offers SS316 stainless steel air filters, pressure regulators, lubricators, filter regulators and combined FRL units in G1-1/2" and G2" sizes.

The range features 0–1.6 MPa operating pressure, standard G threads, optional NPT connections and stainless steel filter elements with 5 μm or 40 μm filtration options.

This guide explains the available product configurations, key technical specifications, selection considerations and how to evaluate replacement options for existing industrial pneumatic equipment.

1. What Are Large-Port Pneumatic Air Preparation Components?

Pneumatic air preparation components are installed in compressed-air systems to help ensure that the air supplied to downstream equipment meets the required operating conditions.

The three main components are:

Air Filter

An air filter removes particulate contamination from compressed air according to its specified filtration rating. Depending on the design, it may also help separate and collect liquid contaminants.

Air Regulator

An air regulator controls downstream air pressure within its designed operating range, helping equipment receive an appropriate and stable pressure supply.

Air Lubricator

An air lubricator introduces a controlled amount of lubricant into the compressed-air stream for equipment that requires air-line lubrication.

These components can be installed individually or combined into an FRL assembly.

In systems using larger compressed-air piping, 1-1/2" and 2" connections may be required to match existing equipment or piping specifications.

However, port size alone does not determine airflow capacity. Internal flow passages, filter design, operating pressure and acceptable pressure drop must also be considered.

2. Pneutech 1-1/2" and 2" SS316 Stainless Steel FRL Product Range

Pneutech's SS316 air preparation range includes five product configurations, allowing customers to select individual components or a complete air preparation assembly.

This range provides options for industrial pneumatic systems requiring large-port connections and SS316 stainless steel construction.

Customers can select the required component type according to their compressed-air treatment needs rather than purchasing a complete FRL assembly when only one or two functions are required.

Key Technical Specifications

Filtration grades apply to configurations containing an air filter. Detailed performance, dimensions and application suitability should be confirmed for the selected model.

3. Why Choose SS316 Stainless Steel Air Preparation Components?

Material selection is an important consideration when pneumatic equipment operates in demanding industrial environments.

SS316 stainless steel contains molybdenum, which generally improves resistance to certain forms of corrosion compared with common SS304 stainless steel.

For pneumatic systems, SS316 components may be considered where corrosion resistance, equipment material specifications or environmental exposure are important.

Corrosion Resistance in Industrial Environments

Moisture, cleaning chemicals and other environmental conditions can affect pneumatic components over time.

SS316 stainless steel may provide advantages in applications where conventional materials are less suitable.

However, the suitability of any stainless steel component depends on the actual operating environment, chemical exposure, temperature and the materials used throughout the assembly.

Applications with Restrictions on Aluminum

Some industrial projects specify that aluminum components must not be used.

Pneutech's large-port SS316 range contains no aluminum internal components, making it worth evaluating for applications with specific material restrictions.

However, where an application prohibits aluminum entirely, the material composition of the complete assembly—including accessories and external components—should be verified before approval.

Stainless Steel Filter Elements

Pneutech's applicable air filter configurations use stainless steel filter elements rather than conventional nonmetallic filter media.

Stainless steel filter elements may be advantageous where material compatibility and service conditions are important.

The correct filtration grade should be selected according to downstream equipment requirements.

4. 5 μm vs. 40 μm Stainless Steel Filter Elements: Which Should You Choose?

Pneutech SS316 air filters are available with 5 μm and 40 μm filtration options.

The appropriate selection depends on the compressed-air quality requirements and the sensitivity of downstream equipment.

5 μm Filtration

A 5 μm filter element provides finer particle filtration than a 40 μm element.

It may be appropriate for applications requiring greater removal of fine particulate contamination.

However, finer filtration may also affect pressure drop and maintenance requirements depending on operating conditions and contamination levels.

40 μm Filtration

A 40 μm filter element provides coarser particle filtration.

It may be suitable for applications where the equipment does not require fine filtration and the primary objective is to remove larger particulate contaminants.

Filtration Selection Comparison

Important: A 5 μm or 40 μm particulate filter should not automatically be considered an oil-removal, coalescing or sterile-air filter. Applications requiring these functions may need additional specialized filtration.

For large-port pneumatic systems, filtration performance should be considered together with the required airflow and allowable pressure drop.

5. Common Industrial Applications for 1-1/2" and 2" SS316 FRL Units

Large-port SS316 air preparation components can be considered for industrial pneumatic applications where connection size and material specifications are important.

Industrial Machinery and Equipment

Industrial machines using large compressed-air supply lines may require air filtration, pressure regulation or lubrication.

The appropriate configuration depends on equipment requirements, operating pressure and actual compressed-air demand.

Mining and Heavy Industrial Equipment

Mining-related equipment and heavy industrial machinery may have specific material requirements due to their operating environments or site specifications.

SS316 air preparation components may be evaluated where corrosion resistance or restrictions on certain materials are important.

For underground mining applications, additional safety and regulatory requirements may apply. Stainless steel construction alone does not establish approval for underground use.

Equipment Maintenance and Refurbishment

Maintenance teams often need replacement components for existing pneumatic systems.

Some older equipment uses large-port filters and lubricators that are no longer readily available from the original supplier.

A suitable replacement may be identified through comparison of the original component's technical specifications and installation requirements.

Industrial Pneumatic Distribution

Pneumatic distributors serving maintenance and OEM customers may receive requests for less common port sizes or specific material grades.

Offering G1-1/2" and G2" SS316 air preparation components can help distributors address applications beyond standard small-port pneumatic product ranges.

6. How to Select the Right Large-Port SS316 Air Filter, Regulator or Lubricator

Selecting a suitable pneumatic air preparation component requires more than matching the nominal port size.

The following factors should be reviewed.

A. Port Size and Thread Standard

Confirm whether the required connection is G1-1/2", G2", NPT or another thread standard.

Pneutech's standard large-port SS316 configurations use G threads (BSPP).

NPT connections are available for consideration, subject to minimum order quantity.

G and NPT threads are not directly interchangeable.

B. Operating Pressure

The specified operating pressure range is 0–1.6 MPa (0–16 bar).

Customers should verify that the selected component meets the operating pressure requirements of their pneumatic system.

For pressure regulators, the required downstream pressure setting and operating conditions should also be confirmed.

C. Required Airflow and Pressure Drop

Port size does not guarantee a specific airflow performance.

For example, two filters with the same 1-1/2" connection may have different internal flow passages and filter designs.

Customers should provide their required airflow and acceptable pressure drop so that the selected configuration can be technically evaluated.

D. Material Requirements

Confirm whether the application requires SS316 stainless steel, prohibits aluminum or has other material restrictions.

Seal materials, accessories and operating media should also be considered.

E. Filtration Grade

For configurations containing a filter, select either 5 μm or 40 μm according to the downstream equipment requirements.

F. Installation Dimensions

For replacement applications, compare the overall dimensions, connection positions, mounting arrangement and maintenance clearance.

Even when the connection size matches, piping modifications may be required.

7. Replacing Discontinued 1-1/2" Air Filters and Lubricators

Finding replacement parts for older industrial pneumatic equipment can be difficult when original products are discontinued or no longer readily available.

This is particularly relevant for 1-1/2" air filters and lubricators, where the number of available product options may be more limited than for common smaller sizes.

Maintenance teams may need to evaluate alternative products to keep existing equipment operating.

What Should Be Checked Before Replacing an Existing Unit?

Pneutech offers G1-1/2" and G2" SS316 air filters, regulators and lubricators that can be considered for technical evaluation in replacement projects.

For customers replacing existing industrial pneumatic components, our team can review the original part number, photographs and operating requirements.

A matching port size does not establish direct interchangeability. Pressure ratings, airflow performance, filtration requirements, materials and installation dimensions must be evaluated before a replacement is approved.

8. Individual Components or a Complete FRL Combination?

Not every compressed-air system requires all three air preparation functions.

Pneutech provides several configurations:

• SF Series Air Filter: For applications requiring compressed-air filtration.

• SR Series Air Regulator: For applications requiring pressure regulation.

• SL Series Air Lubricator: For equipment requiring air-line lubrication.

• SFR Series Filter Regulator: For applications requiring filtration and pressure regulation.

• SFRL Series Combination: For systems requiring filtration, pressure regulation and lubrication.

Customers should follow the equipment manufacturer's recommendations when determining whether air-line lubrication is required.

Some pneumatic components are designed to operate without additional lubrication, so a lubricator should not be added automatically.

9. Request a Quote for 1-1/2" and 2" SS316 Stainless Steel FRL Components

Are you looking for a 1-1/2" or 2" SS316 stainless steel air filter, regulator or lubricator?

Pneutech supplies large-port stainless steel pneumatic air preparation components for industrial equipment manufacturers, pneumatic distributors and maintenance applications.

Available options include:

• G1-1/2" and G2" connection sizes

• SS316 stainless steel construction

• 0–1.6 MPa operating pressure

• Stainless steel filter elements

• 5 μm or 40 μm filtration options

• Standard G threads

• Optional NPT threads, subject to MOQ

• Air filters, regulators, lubricators and combined FRL configurations

What Information Should You Send for a Quotation?

Please provide:

1. Product type: Air filter, regulator, lubricator, filter regulator or FRL combination

2. Port size: G1-1/2" or G2"

3. Thread type: G or NPT

4. Filtration grade: 5 μm or 40 μm, where applicable

5. Operating pressure and required airflow

6. Required quantity

7. Application or material restrictions

For replacement inquiries, please also share the original brand, model number and product photographs.

Contact Pneutech to discuss your large-port SS316 air preparation requirements and request a quotation.

Frequently Asked Questions

Are 1-1/2" and 2" SS316 stainless steel air filters available?

Yes. Pneutech offers G1-1/2" and G2" SS316 air filters, together with regulators, lubricators, filter regulators and combined FRL configurations.

What is the operating pressure range?

The specified operating pressure range is 0–1.6 MPa (0–16 bar). The selected product should be evaluated against the actual system operating conditions.

What filtration grades are available?

Applicable air filter configurations can be supplied with 5 μm or 40 μm stainless steel filter elements.

Do these SS316 air preparation components contain aluminum internal parts?

No. The range contains no aluminum internal components. For applications requiring a completely aluminum-free assembly, all external accessories and other component materials should also be verified.

Can Pneutech supply NPT threads?

NPT connections can be considered subject to minimum order quantity. Standard products use G threads (BSPP).

Can these products replace existing Parker or other industrial air filters and lubricators?

They can be evaluated as potential alternatives, but direct interchangeability is not guaranteed. Technical specifications, dimensions, airflow requirements and installation conditions must be reviewed before selecting a replacement.

Is a 2" air filter always better than a 1-1/2" filter?

No. The correct size depends on system airflow requirements, pressure drop, filtration performance and installation conditions.

What information is needed for a replacement quotation?

Please provide the original model number, photographs, port size, operating pressure, required airflow, material requirements and quantity.

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Email: crystal@pneutechauto.com  |Whatsapp: +86 159 5829 7893