The AirTAC GFR300C15MLNT AirTAC Filter Regulator NPT1/2 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.
The AirTAC GFR300C15MLNT is a filter regulator: water and particulate removal plus pressure regulation combined in a single body, with a drain bowl but no lubricator. This size 300 unit is configured with a 1/2 in NPT port, the standard 40 um filter element, a manual drain, and the low-pressure regulator type, so it suits circuits where the set pressure sits at the lower end of the working range. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The bowl is metal, a mounting bracket is included, and no gauge is fitted on this configuration.
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, and options include automatic or differential-pressure drains, a 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, and G (BSPP) or NPT threads in place of the PT standard. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C15MLNT AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Feeding clamp and hold-down cylinders on a packaging line where the clamp pressure is set low; the filter stage keeps condensate and debris out of the valves while the low-pressure regulator holds the set point.
Conditioning the supply air to a robotic work cell: the 40 um element protects directional valves and actuators from water and particulate, and the regulator sets the circuit pressure at the manifold.
Supplying filtered, regulated air to the cylinders that throw gates and diverters on a conveyor line, with the metal-bowled unit bracket-mounted at the line drop and the manual drain emptied during scheduled checks.
Choose the GFR size by matching the port step to the air demand of the circuit: this size 300 unit carries a 1/2 in NPT port, one step up from 3/8 in and one below 3/4 in. Drain type is a real decision: this unit has a manual drain, which you drain by hand on a schedule, while automatic and differential-pressure drains remove condensate without operator input. The 40 um element is the standard grade; specify 5 um (code W) where downstream equipment needs finer filtration. Gauges are optional - embedded square or external round, in MPa, psi or bar scales - and this configuration is supplied without one. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also orderable. A mounting bracket is included.
One honest note before you order: AirTAC publishes flow for this series as curves, not as a single rated number, so send us your flow and pressure requirements and we will confirm the sizing against the datasheet before you commit.
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 GFR series as curves rather than a single rated figure, so there is no one rated flow number we can quote. Send us your required flow and working pressure and we will confirm the sizing against the datasheet on request before you order.
The manual drain on this GFR300C15MLNT is opened by hand to release collected condensate, so it needs a place in your maintenance routine. If you would rather not drain by hand, the same size is available with an automatic drain or the differential-pressure drain, which is the catalogue default - just ask for the alternative code.
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.