The AirTAC GFR30010MLJC2WTK AirTAC Filter Regulator 3/8 in NPT is a genuine G-series filter regulator: water separation, 5 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 GFR30010MLJC2WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built for a 3/8 in NPT port, carries a fine 5 um filter element (code W), and uses a manual drain, so the bowl is emptied by opening the drain valve during routine checks. It is the low-pressure (L) type, fitted with an external round gauge scaled in psi, and includes a reverse/check valve (K). No mounting bracket is supplied (code J), so plan for in-line piping support.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with a choice of ports, threads, drain types, filter grades, gauges and bracket options, so a matching unit can be specified for most compressed-air drops. Rated flow is published only as catalogue curves rather than a single figure, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR30010MLJC2WTK AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On a carton-sealing or case-packing machine running clamp and hold-down cylinders at reduced pressure, this filter regulator cleans the supply, holds the set pressure and its check valve holds the circuit if upstream air is lost.
Ahead of spray and coating guns, the 5 um element strips water and fine particles that would otherwise blemish the finish, while the regulator sets the gun supply pressure and the psi gauge lets operators verify it at a glance.
On sorting and diverting stations along a conveyor, this unit filters the plant air and regulates it down to the pressure the cylinders were designed for, with manual bowl draining fitted into the line's scheduled maintenance round.
Start with the port step: this unit is size 300 with a 3/8 in NPT port, so match it to the airline and the flow your circuit needs - larger sizes carry larger ports and more flow. Choose the drain to suit attendance: manual (this unit) suits lines checked on a schedule, while automatic and differential-pressure drains suit unattended drops. Pick the element grade: 40 um is standard protection, 5 um (this unit) for finer downstream needs such as instrumentation or coating work. Gauge scale (MPa, psi or bar - psi here), thread (PT standard, G or NPT to order) and bracket are all specified in the code. Because flow is published as curves rather than a single rating, 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as catalogue curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, downstream demand and port size, and we will confirm the flow and full datasheet figures for this exact model on request before you order.
It means the drain bowl is emptied by hand: an operator opens the drain valve at the bottom of the bowl to release collected water and contaminants. This suits installations that are visited on a regular maintenance schedule. If the drop is unattended, ask us about the automatic or differential-pressure drain versions of the same unit.
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.