1/2" NPT MIDI Airline Filter – 40 Micron, Automatic Drain | XOF-MIDI-N12-A
The Pneuforce XOF-MIDI-N12-A modular airline filter uses a MIDI body with 1/2" NPT ports, a standard 40 micron element and an automatic float drain. It removes water droplets, dirt, rust and pipe scale from compressed air before contaminants reach downstream pneumatic equipment.
The modular design can be installed as a standalone filter or combined with compatible regulators and lubricators to form a complete FRL assembly for machinery and industrial automation.
Modular Joining Kits and Field-Change Thread Blocks
A matching MIDI XOFR filter-regulator and XOL lubricator can be joined with the FRLKIT-MIDI modular FRL joining kit. Each joining kit is size-specific: MINI, MIDI and MAXI kit bodies are not interchangeable. To change the connection thread size while retaining the MIDI modular component, select a compatible MIDI OHB replaceable port/thread block. Available MIDI thread blocks: OHB-MIDI-38 (3/8" NPT), OHB-MIDI-12 (1/2" NPT), OHB-MIDI-34 (3/4" NPT). This helps distributors and plant maintenance teams carry fewer complete FRL variants and configure the required NPT port size at the point of installation. Confirm the port block, seals, orientation and component compatibility before fitting.
Choosing the Correct Pneuforce FRL Component
Use XOF-MIDI-N12-A ahead of pressure regulators, valves and actuators to remove dirt and entrained liquid droplets. Its 1/2" NPT ports and MIDI body size determine pipe fit and modular compatibility; it does not dry water vapor from compressed air.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Airline Filter |
| Part Number | XOF-MIDI-N12-A |
| Port Size | 1/2" NPT |
| Body Size | MIDI |
| Filter Element | 40 micron standard element |
| Drain Type | Automatic float drain |
| Installation | Standalone or modular FRL assembly |
| Service | Industrial compressed air |
| Published Rated Flow — 40 Micron | 106 CFM (3,000 NL/min) |
| Maximum Working Pressure | 175 psi(g) (12 bar(g)) — FRL datasheet |
| Operating Temperature | 41–140°F (5–60°C) |
| Matching FRL Joining Kit | FRLKIT-MIDI (for compatible MIDI modular assemblies) |
| Available MIDI NPT Thread Blocks | OHB-MIDI-38 (3/8" NPT), OHB-MIDI-12 (1/2" NPT), OHB-MIDI-34 (3/4" NPT) |
Protect Downstream Pneumatic Equipment
Removing condensed water and solid contamination helps extend the service life of valves, cylinders, regulators, sensors and pneumatic tools while reducing unexpected maintenance.
Key Features
- 40 micron standard particulate filtration
- Automatic float drain for condensate removal
- 1/2" NPT inlet and outlet ports
- MIDI modular body size
- Quick-service bowl and replaceable filter element
- Can be combined with compatible regulators and lubricators
- Suitable for OEM machinery and plant compressed air systems
Typical Applications
- Packaging and processing machinery
- Pneumatic valve manifolds
- Robotics and automation
- Machine tools and CNC equipment
- Assembly and material-handling systems
- General factory compressed air preparation
Installation & Service Guidance
Install the filter upstream of regulators, lubricators and sensitive pneumatic equipment. Observe the indicated airflow direction and mount the bowl vertically to support correct condensate separation and drain operation.
Important: Isolate and fully depressurize the compressed air system before installation or maintenance. Confirm model, body size, port size and component compatibility before ordering.
Frequently Asked Questions
What does the XOF-MIDI-N12-A air filter remove?+
The 40 micron element captures particulate contaminants such as rust and pipe scale. The bowl also separates entrained liquid water; it does not remove dissolved water vapor or replace an air dryer.
What port connections and body size does it use?+
This model has 1/2" NPT inlet/outlet ports on a MIDI modular FRL body. Confirm available installation clearance and matching air piping.
What is the published airflow rating?+
Pneuforce lists 106 CFM (3,000 NL/min) for the standard 40 micron element in this port/body configuration. Flow and pressure drop depend on actual operating conditions.
What is the maximum published working pressure?+
The manufacturer FRL datasheet gives a 175 psi(g) (12 bar(g)) working-pressure limit for the inline filter family. Check all fitted bowls, drains and adjoining components.
How does the automatic drain work?+
The float-operated drain releases collected condensate when the required operating conditions are met. Periodic checks remain necessary to prevent flooding or leaks.
Can the 40 micron filter be upgraded to a 5 micron element?+
A compatible MIDI 5 micron element may be used when the filtration requirement justifies it. Check pressure drop and airflow; finer elements have lower published rated flows.
Where should the filter be installed?+
Install upstream of the regulator and any optional lubricator, with the bowl vertical and the airflow direction matching the filter markings.
Which joining kit connects a MIDI XOFR and XOL?+
Use Pneuforce FRLKIT-MIDI to join compatible MIDI XOFR filter-regulators and XOL lubricators. Choose the kit for the same body size; MINI, MIDI and MAXI joining kits cannot be mixed.
Can I change the MIDI FRL NPT connection size without replacing the complete assembly?+
Yes, where the assembly accepts the replaceable Pneuforce OHB thread blocks. The MIDI port options are OHB-MIDI-38 (3/8" NPT), OHB-MIDI-12 (1/2" NPT), OHB-MIDI-34 (3/4" NPT). A suitable block can simplify on-site configuration and inventory management; confirm the matching component and seals first.
Ships from Indianapolis, USA
- Stock: 57
