The AirTAC GFR30010MJF1T AirTAC Filter Regulator NPT3/8 Manual Drain 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 PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30010MJF1T is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air down to 40 um and lets you set downstream pressure anywhere in the 0.05-0.9 MPa (7-130 psi) range. The 3/8 in NPT ports suit mid-size supply lines, the manual drain lets an operator bleed collected condensate on a scheduled basis, and the fitted square gauge (MPa scale) shows outlet pressure at a glance. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl keeps the condensate level visible; only size 600 units use an aluminium bowl.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drain, a 5 um filter grade option (code W), optional round external gauges with MPa, psi or bar scales, and G or NPT thread options. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application.
| Model | GFR30010MJF1T AirTAC Filter Regulator NPT3/8 Manual Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa 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 0.05 - 0.9 MPa (7 - 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.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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.
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding filtered, regulated air to a CNC machine's pneumatic tool-changer and clamping circuits, where the manual drain is bled during shift-start checks and the MPa gauge keeps set pressure visible to the operator.
Conditioning the air feeding sealers, labelers and carton-closing cylinders on a packaging line, protecting valves and actuators from water and particulate while holding a stable working pressure.
Supplying clean, adjustable-pressure air to lab benches and test rigs where instruments need particulate-free air and the outlet pressure is dialled in per experiment and read on the square gauge.
Size 300 with 3/8 in NPT ports is a solid mid-range step: move up to size 400 or 600 if your line demand grows, or down to size 200 for compact drops - match the size and port to the flow your circuit needs. This unit has a manual drain, which suits installations where an operator can regularly bleed the bowl; choose automatic drain (code A) for unattended positions or differential-pressure drain for the default behaviour. The 40 um grade is the standard element; specify 5 um (code W) where finer particulate removal matters. The fitted square gauge reads in MPa, with psi or bar scales and an external round gauge available as options. NPT is the thread on this code; G (BSPP) and PT are also catalogue options. No mounting bracket is included on this code (bracket is the standard option on other codes). Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
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 publishes flow for the GFR300 series as performance curves rather than a single rated figure, so we do not quote one number. Tell us your line pressure and the flow your application needs, and we will confirm against the datasheet curves whether this 3/8 in unit is correctly sized before you order.
The M in the code specifies a manual drain: an operator opens the drain to bleed collected condensate from the polycarbonate bowl. It suits installations with regular maintenance visits. If the unit sits in an unattended position, choose the automatic drain (code A) or the differential-pressure drain (blank) variant instead. Note that with a manual drain the regulator adjustment range is 0.05-0.9 MPa (7-130 psi).
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
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.