The AirTAC GFR30010MF2GK AirTAC Filter Regulator G3/8 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 AirTAC GFR30010MF2GK is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a G3/8 (BSPP) port, a 40 um standard filter element, a manual drain bowl in polycarbonate, an embedded square gauge scaled in psi, and a built-in reverse/check valve that holds downstream pressure when the upstream supply is lost. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 0.05-0.9 MPa (7-130 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, thread types (PT standard, G and NPT as order options), drain types (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge scale, and bracket options. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR30010MF2GK AirTAC Filter Regulator G3/8 Manual Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) 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, 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. 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeds a bench-mounted pneumatic press or clamp cylinder, giving the operator a locally set, filtered supply pressure at the station while the check valve holds the set pressure if the main supply drops.
Conditions the air feeding sealers, labelers and carton-closing heads on a packaging line, with the psi gauge letting technicians verify set pressure at each drop during changeover.
Installed at the take-off point on a distribution header to filter and regulate air for individual workstations, with the manual drain emptied during scheduled rounds.
Size and port set the flow path: the 300 series with its G3/8 port suits medium-flow circuits, and stepping up to 400 or 600 increases both port and capacity - match the size to the air demand of the circuit rather than the fitting alone. Because flow for this family is published as curves and not a single rated figure, ask us to confirm sizing against your application before ordering. Drain type is a real operating choice: this unit has a manual drain, which means an operator opens the bowl drain periodically; choose automatic or differential-pressure drain codes if the unit is mounted where routine draining is impractical. The 40 um element fitted here is the standard grade; specify code W for 5 um where finer particulate removal is needed. The embedded square gauge reads in psi (MPa and bar scales are alternatives, and an external round gauge is optional). Thread is G (BSPP) on this code; PT is the standard and NPT is available to order. A mounting bracket is included, and the K code confirms a reverse/check valve is fitted.
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 this family as curves rather than a single rated figure, so no single flow number can be quoted here. Tell us your application and required flow and we will confirm the datasheet figures for this exact model on request before you order.
The M in the code specifies a manual drain: the bowl collects water and particulate and an operator opens the drain periodically to purge it - automatic and differential-pressure drain versions are available if unattended draining is needed. The trailing K confirms a reverse/check valve is fitted, which holds downstream pressure if the upstream supply is interrupted.
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.