Airtac GFR Filter Regulator GFR300C15MJNK
The AirTAC Airtac GFR Filter Regulator GFR300C15MJNK is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR300C15MJNK
GFR300C15MJNK is an AirTAC G-series filter regulator: filtration and pressure regulation combined in one body, with a drain bowl but no lubricator. This size 300, PT1/2 configuration runs the standard 40 um filter element, drains by hand through the manual drain, carries a reverse (check) valve (K), and is ordered without a gauge; the J code means no mounting bracket is supplied. On this manual-drain version the regulated outlet adjusts over 0.05-0.9 MPa (7-130 psi), max inlet pressure is 1.0 MPa (145 psi), and the medium is compressed air from -5 to 70 C. The bowl on size 300 units is polycarbonate (PC).
This is a genuine AirTAC part from the GFR family, which spans sizes 200, 300, 400 and 600 with your choice of drain type, filter grade, gauge and scale, thread (PT standard, with G and NPT as catalogue options) and bracket. AirTAC publishes flow for this series as curves rather than a single rating, so we confirm flow and datasheet figures on request before you order.
Airtac GFR Filter Regulator GFR300C15MJNK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MJNK |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: Airtac GFR Filter Regulator GFR300C15MJNK
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C15MJNK Is Used
Pick-and-place module air prep
Mounted on the frame of a pick-and-place module, it feeds the gripper and cylinder circuit with filtered, regulated air, and the check valve blocks reverse flow through the unit if the upstream side is vented.
Test rig actuation supply
On a leak and pressure test rig, it conditions the actuation air separately from the test circuit, with the 40 um element and manual drain suiting a rig that is drained and serviced between runs.
Weld cell clamp tooling
Feeding the clamps and positioners in a robotic weld cell, it delivers clean shop air at the pressure the clamp force schedule calls for, with the check valve preventing reverse flow through the body.
Is the Airtac GFR Filter Regulator GFR300C15MJNK the Right Unit?
Across the GFR range, size and port step together: 200, 300, 400 and 600 with ports from 1/8 in to 1 in, so size the unit on its flow curve rather than pipe size alone. This code fixes: the standard 40 um element, manual drain, a built-in check valve that blocks reverse flow through the body, no gauge and no mounting bracket. If you want the finer 5 um element, a square or round gauge in MPa, psi or bar, automatic or differential-pressure draining, G or NPT threads, or a bracket, those are all catalogue options on other codes in this series. AirTAC publishes flow as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR300C15MJNK FAQ
There is no single rated flow figure to quote: AirTAC publishes flow for this series as curves. Share your line pressure, downstream demand and acceptable pressure drop, and we will confirm the flow and datasheet for this PT1/2, size 300 unit on request before you order.
M in the code means the polycarbonate bowl is emptied by hand, which suits positions technicians visit anyway, such as machine-side drops and test rigs. It also gives the widest adjust range start: 0.05-0.9 MPa (7-130 psi). If the unit sits where it cannot easily be reached for draining, choose the automatic (A) or differential-pressure version instead.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR300C15MJNK
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.