The AirTAC GFR300C15LF2WGK AirTAC Filter Regulator G1/2, 5 um 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 GFR300C15LF2WGK is a GFR-series filter regulator: one body that removes water and particulate from compressed air and holds the downstream pressure at a set point. This configuration is built on the size-300 body with G1/2 (1/2 in) G-thread ports, a 5 um filter element (code W) for finer filtration than the standard 40 um grade, and a differential-pressure drain, the default arrangement that discharges collected condensate automatically as operating conditions demand. The regulator is the low-pressure type, intended for circuits whose set point sits below the standard type's range; the exact set-point range for this variant is not published, and we confirm it on request. The unit is supplied with an embedded square gauge scaled in psi, a reverse/check valve (code K) that holds downstream pressure if the upstream supply is lost, a metal bowl and a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, ordered with a choice of drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge scale (MPa, psi or bar), thread (PT standard, with G and NPT as order options), bracket and reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Rated flow for the series is published as curves rather than a single figure; ask us and we will confirm the datasheet figures for your application.
| Model | GFR300C15LF2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| 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) |
Filtered and regulated air to clamp cylinders on milling or turning fixtures, where the low-pressure type holds a gentle, repeatable clamp force and the 5 um element keeps fine particles out of the clamp valves.
A filtered, regulated supply point for the pick-and-place and sealing cylinders on a cartoning or wrapping line, with the check valve holding the set pressure if the plant air dips during a cycle.
Regulated low-pressure air for a cooling or debris-blowing nozzle above a conveyor, where the 5 um element and metal bowl keep moisture and dirt out of the nozzle and the gauge gives a direct psi reading.
Pick the size by port and flow step: size 300 sits mid-range in the GFR line (200/300/400/600), and this unit carries G1/2 (1/2 in) G-thread ports, so step up or down a size when the port or the air demand of the circuit changes. This configuration is already fixed for a 5 um element, differential-pressure drain, low-pressure regulator type, square psi gauge and reverse/check valve; the parallel catalogue choices are 40 um standard filtration, automatic or manual drains, MPa or bar gauge scales, and no check valve. The thread here is G; PT is the standard thread for the series and NPT is also an order option, so match the thread to your pipework when ordering. Flow through the GFR series is published as curves, not a single rated number, so send us your flow and pressure conditions and we will confirm sizing 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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, set point and expected air consumption, and we will confirm the flow figures from the datasheet for your application before you order.
The L code in GFR300C15LF2WGK selects the low-pressure regulator variant, intended for circuits whose set point sits below the standard type's range. The exact set-point range for this variant is not published in the material we hold, so we confirm it from the AirTAC datasheet on request. Maximum inlet pressure is still 1.0 MPa (145 psi) and the temperature range is -5 to 70 C, non-freezing.
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.