The AirTAC GFR300C15MLF2T 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 GFR300C15MLF2T is a GFR-series filter regulator: compressed-air filtration (water and particulate removal) and pressure regulation combined in one body, with no lubricator. This configuration is built for 1/2 in NPT ports, carries the standard 40 um filter element, and drains by hand - you open the manual drain at the bottom of the metal bowl to expel collected water. The regulator is the low-pressure type, the unit is supplied with an embedded square gauge reading in psi and a mounting bracket, and no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR300 size class. Across the G-series filter-regulator family, sizes 200, 300, 400 and 600 are available with ports from 1/8 to 1 in, PT as the standard thread and G or NPT to order, a choice of differential-pressure, automatic or manual drains, a 40 um standard or 5 um (code W) element, and gauge or no-gauge variants. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15MLF2T 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) |
Point-of-use conditioning for the cylinder-actuated filler, capper and pusher stations on a beverage bottling line: water and pipe scale are stripped out before they reach the valves, and the low-pressure regulator holds the circuit at the pressure the machine builder specified.
Filtered, regulated air for the pneumatic grippers and clamps on a robotic pick-and-place cell, where a 1/2 in drop from the cell's air drop keeps the supply close to the actuators and the manual drain is emptied during the cell's routine maintenance check.
Supplying the low-pressure circuit of an adhesive dispensing head on a carton-closing line, where the low-pressure regulator type and the psi-scaled square gauge let the operator set and read the reduced pressure the dispensing valve was designed around.
Size 300 with a 1/2 in port sits in the middle of the GFR range; step down to size 200 or up to size 400 or 600 for less or more flow capacity - we confirm the exact curve against your demand on request. The choices decoded into this code are: manual drain (the simplest option, but it needs someone to open the bowl drain; automatic and differential-pressure drains are available on other variants), 40 um filtration (choose 5 um, code W, where downstream equipment needs finer protection), the low-pressure regulator type, a square gauge scaled in psi (round external gauges and MPa or bar scales are options), NPT thread (PT is the standard; G is also available), and an included mounting bracket.
Because flow is published as curves and not as a single rated number, the honest way to size this unit is to send us your line pressure and air consumption and let us confirm the fit from 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the sizing from the datasheet on request.
The manual drain means water collected in the metal bowl is released by opening the drain by hand, which suits installations checked during routine maintenance rounds. If you cannot rely on regular drain checks, ask us about the automatic or differential-pressure drain variants of the same size.
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.