The AirTAC GFR30010LJF2WK AirTAC Filter Regulator, PT3/8, 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 PT3/8" 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 GFR30010LJF2WK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is the low-pressure type with a 3/8 in PT port, a 5 um filter element (code W), a differential-pressure drain and a fitted reverse/check valve that holds downstream pressure if the supply drops. The embedded square gauge reads in psi, and the polycarbonate bowl collects the condensate and dirt removed from the air stream.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with ports from 1/8 in to 1 in, plus drain, filter-grade, gauge, thread and bracket options to match the line. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR30010LJF2WK AirTAC Filter Regulator, PT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 10 | Port size PT3/8". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On a carton or blister line, the unit filters the shop air to 5 um and holds a low, stable regulated pressure to the sealing jaws, while the check valve keeps the circuit from collapsing during brief supply dips.
Feeding low-pressure clamping fixtures on a CNC cell, the regulator keeps holding force consistent, the 5 um element protects the cylinder seals, and the psi gauge gives the setter a direct reading at the fixture.
On a drying or dust blow-off station running at reduced pressure, the unit cleans the supply air, regulates the nozzle pressure from the psi gauge, and drains collected condensate via the differential-pressure bowl.
Size the unit against the air demand of the line: this is size 300 with a 3/8 in PT port, and larger GFR sizes carry larger ports and more flow. The 5 um element (code W) suits points where finer particulate control matters; the 40 um standard element remains available elsewhere in the family. Drain here is differential-pressure, which bleeds the bowl as pressure falls; automatic and manual drains are options in the family. The square gauge reads psi, with MPa and bar scales and an external round gauge as alternatives. Thread is PT as standard, with G (BSPP) and NPT as order options; this configuration carries no mounting bracket. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this series as curves, not as a single rated figure, so there is no honest one-number answer. Tell us your line demand and working pressure and we will confirm the sizing from the datasheet on request before you order.
The L in the code marks the low-pressure regulator variant, intended for circuits set below the standard type's range. The exact adjustment range for this variant is not published in our sheet, so ask us to confirm it on request. Everything else decodes normally: PT3/8 port, 5 um element, differential-pressure drain, square psi gauge and fitted check valve.
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.