The AirTAC GFR300C10MNTK 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 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.
GFR300C10MNTK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and holds a regulated downstream pressure in a single body. This configuration has a 3/8 in NPT port, a manual drain (open the drain valve periodically to expel collected condensate), a 40 um standard filter element, a polycarbonate bowl, and a reverse (check) valve fitted. No gauge is supplied with this code. Maximum inlet pressure is 1.0 MPa (145 psi), the pressure setting range is 0.05-0.9 MPa (7-130 psi), and the working temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is made in 200, 300, 400 and 600 sizes with a choice of PT, G or NPT thread, manual, automatic or differential-pressure drain, 40 um or 5 um (code W) filtration, gauge and scale options, and bracket choices. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C10MNTK AirTAC Filter Regulator NPT3/8 Manual Drain |
|---|---|
| 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.
| 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.
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) |
Feeds filtered, regulated air to the gripper and pusher cylinders on a bottling line, with the manual drain cleared at shift start to keep condensate out of the valves.
Supplies clean air at a fixed setting to the clamping cylinders on a CNC fixture, holding workpiece pressure steady through the machining cycle.
Regulates supply to the diverter and stopper actuators along a packaging conveyor, with the 40 um element catching pipe scale before it reaches the directional valves.
Choose the size by the port and flow step: 200, 300, 400 and 600 step up in port and capacity, so match the 3/8 in NPT port here to your piping and let us confirm the flow curve against your demand. Pick the drain: manual (this unit) needs periodic draining, while automatic and differential-pressure versions drain with less attention. Pick the element: 40 um standard or 5 um (code W) for finer protection. Gauges (round or square, with MPa, psi or bar scale) can be specified; this code has none fitted. Thread is PT as standard with G and NPT as order options, and a bracket is included (code J omits it). Before ordering, send us your flow and pressure requirements so we can confirm sizing from the datasheet.
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 G-series flow as curves, not a single rated number, so we do not quote a rated flow, Cv or SCFM here. Send us your line pressure, downstream setting and air demand and we will confirm the flow curve and sizing from the datasheet on request.
This code has a manual drain: open the drain valve periodically to expel collected water. If you prefer unattended draining, the GFR family is also available with automatic (code A) or differential-pressure (blank) drains. The filter element is 40 um as standard; 5 um is the W option.
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.