The AirTAC GFR30008C2WG AirTAC Filter Regulator G1/4, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" 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 GFR30008C2WG is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body, with a 1/4 in G-thread (BSPP) port. This configuration carries the 5 um filter element (code W) for finer water and particulate removal than the standard 40 um grade, a differential-pressure drain that auto-clears collected condensate whenever the pressure differential across the element is high enough, and a fitted round pressure gauge reading in psi. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, a maximum inlet pressure of 1.0 MPa (145 psi), and a mounting bracket is included. The polycarbonate bowl suits the -5 to 70 C (non-freezing) operating range of this size.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge style and scale, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR30008C2WG AirTAC Filter Regulator G1/4, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 5 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 — round, psi 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. |
|---|---|
| 08 | Port size PT1/4". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Installed ahead of an air-over-oil or pneumatic press station, this unit filters the shop air to 5 um and holds a stable, operator-set regulated pressure so each press stroke acts consistently on the workpiece.
Mounted on the machine's air-preparation panel, it cleans and regulates the supply feeding pilot valves and sensors, with the psi gauge giving the maintenance team a visible line-pressure reference at a glance.
Fitted at the cell's air inlet, it removes water and fine particulates before the vacuum generator and gripper valves, and the regulator sets the supply pressure the gripper circuit was designed around.
Step up or down through the GFR sizes (200/300/400/600) and their port sizes (1/8 in to 1 in) to match the air demand of the circuit - the right size keeps pressure drop acceptable at your flow. This unit is already specified with the finer 5 um element; choose 40 um where general protection is enough and 5 um where downstream valves, cylinders or instruments need cleaner air. The differential-pressure drain suits steady-running supply lines; specify an automatic drain for unattended duty or a manual drain where an operator drains the bowl routinely. The fitted round gauge reads in psi; embedded square gauges and MPa or bar scales are the alternatives. PT is the standard thread, with G (BSPP, as on this model) and NPT available as order options, and a bracket can be added or omitted.
Because AirTAC publishes flow as curves rather than a single rated figure, ask us to confirm sizing against your actual air consumption and line pressure before ordering.
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 GFR300 as curves rather than a single rated figure, so there is no one rated flow number we can quote. Tell us your line pressure and air consumption and we will confirm the flow figures from the datasheet for your application on request.
The W in the code GFR30008C2WG specifies the optional 5 um filter element instead of the standard 40 um grade, for finer protection of downstream valves, cylinders and instruments. With no drain letter in the code, the drain is the differential-pressure type: condensate is discharged automatically whenever the pressure differential across the element is high enough, with no operator intervention.
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.