The AirTAC GFR300C10MLJC2WGK AirTAC Filter Regulator G3/8 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 GFR300C10MLJC2WGK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body, with a drain bowl and no lubricator. This configuration carries a G3/8 port, a 5 um filter element (code W) in place of the 40 um standard, a manual drain, a metal bowl, and a low-pressure regulator fitted with an external round gauge scaled in psi. A reverse (check) valve is fitted (code K) and no mounting bracket is included with this code. 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 published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, embedded square or external round gauges in MPa, psi or bar scales, and PT (standard), G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10MLJC2WGK AirTAC Filter Regulator G3/8 |
|---|---|
| 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 a packaging line's pneumatic actuators: water and particles are stripped from the shop air before it reaches the machine, and the regulator holds a steady supply pressure to the bagging and sealing stations.
Feeding a low-pressure clamping or light press circuit on a production cell, where the workpiece needs a gentler regulated pressure than the main line delivers and the check valve helps hold the set circuit while upstream air fluctuates.
Conditioning the air supply to quarter-turn valve actuators on a process skid: the 5 um element protects the actuator's internal seals from fine particles, and the psi gauge gives operators a local reading of the actuator supply pressure.
Size and port step up with required flow: this unit is size 300 with a G3/8 port. Because flow is published as curves rather than one rated number, send us your flow and pressure conditions and we will confirm sizing against the datasheet before you order. This code specifies a 5 um element instead of the standard 40 um - choose 5 um where downstream equipment needs finer particle removal, and 40 um where general plant air protection is enough. Drain is manual on this code; the catalogue also offers automatic and differential-pressure drains for bowls that should empty themselves. The regulator is the low-pressure type; its exact adjustment range is not published, so confirm it with us if your setpoint is critical. The round gauge fitted here reads in psi; the embedded square gauge and MPa or bar scales are the other catalogue choices. Thread is G on this code; PT is the standard thread and G or NPT are ordered options. No mounting bracket is supplied with this configuration.
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 GFR flow as curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Send us your flow and upstream/downstream pressure conditions and we will confirm the datasheet curve figures for the GFR300 at G3/8 before you order.
Manual drain (code M) means condensate collected in the metal bowl is emptied by hand, which suits attended installations with a regular maintenance routine. The catalogue also offers automatic (A) and differential-pressure (default) drains on other codes in the series; choose one of those where the unit is mounted in a position that is awkward to reach or the line runs unattended for long periods. This configuration is fixed as manual drain.
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.