The AirTAC GFR300C15MLC2WGK AirTAC Filter Regulator G1/2 Low-Pressure 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 GFR300C15MLC2WGK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built with a G1/2 (BSPP) port, a 5 um filter element for finer filtration than the 40 um standard, a manual drain on the bowl, and a low-pressure regulator type for applications set well below standard operating ranges. It ships from the factory with a round external pressure gauge scaled in psi, a reverse/check valve fitted, and a mounting bracket included. 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. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and can be ordered with a choice of drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge style and scale, thread (PT standard, G or NPT), bracket and reverse/check valve options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C15MLC2WGK AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| 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) |
On fixture and clamp circuits that are set well below normal line pressure, the low-pressure regulator type gives fine control at low setpoints, while the 5 um element keeps debris out of clamp cylinders and the check valve holds the downstream setting if upstream supply dips.
Bench-top test and measurement rigs fed from a shop-air header need air that is both dry of particulate and held at a stable low pressure. The 5 um filtration protects sensitive instruments, and the round psi gauge lets technicians read and verify setpoints directly.
Packaging and cartoning machines run many small control valves that are sensitive to water and dirt. A filter regulator at the machine inlet with a 1/2-inch G port conditions the whole supply, the manual drain allows a scheduled end-of-shift bleed, and the bracket gives a clean panel mount.
Start with the port: this unit is the 300 size with a G1/2 connection, so check it against your line size and the flow your application needs - larger sizes (400, 600) carry more flow. Choose the drain to match maintenance access: this unit has a manual drain, which suits attended installations where an operator can bleed the bowl; automatic or differential-pressure drains suit unattended duty. The 5 um element (code W) is the right choice where finer particulate removal matters; the 40 um standard element suits general-purpose prep. Gauge scale can be psi (as fitted here), MPa or bar, in round external or embedded square style. Thread is G (BSPP) on this code; PT is the standard catalogue thread and G or NPT are order options. A bracket is included.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so send us your flow and pressure requirements and we will confirm the correct size against 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 family as performance curves rather than a single rated figure, so we do not quote one number here. Tell us your required flow and working pressures and we will confirm the correct size and the datasheet figures for this exact model on request.
The M in the code specifies a manual drain: condensate collected in the bowl is released by operating the drain by hand, which suits installations with regular operator attendance. If the unit will sit unattended, the same family can be ordered with an automatic or differential-pressure drain instead - just ask and we will quote the equivalent 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.