The AirTAC GFR30010JC3WTK AirTAC Filter Regulator NPT3/8, 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 AirTAC GFR30010JC3WTK is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is threaded NPT3/8 (3/8 in), carries a 5 um filter element for finer filtration than the 40 um standard, drains condensate by differential pressure, and is fitted with an external round gauge reading in bar plus a reverse (check) valve. No mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 300 size; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR range is offered in 200, 300, 400 and 600 sizes with a choice of ports, PT/G/NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, gauge and scale options, and a low-pressure regulator type. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and other datasheet figures for your application before ordering.
| Model | GFR30010JC3WTK AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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, bar 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. 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. |
|---|---|
| 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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) |
Filtered, regulated air to clamp cylinders on a CNC fixture line: the 5 um element protects directional valves from fine particulate, the check valve holds clamp pressure if the main supply drops, and the bar gauge gives the operator a local setting reference.
Feeding pick-and-place and carton-closing actuators on a packaging conveyor: the filter regulator conditions the air at the line drop, the differential-pressure drain handles condensate during continuous shifts, and the 3/8 in port serves a multi-actuator branch.
Conditioning shop air feeding bench-top test rigs and small pneumatic assemblies in a laboratory or R&D workshop: the 5 um grade suits sensitive instrumentation downstream, and the round bar gauge allows repeatable pressure set-points between test runs.
Size and port set the capacity envelope: the 300 size with a 3/8 in port sits mid-range in the GFR line, a step up from 200/1/4 in duty and below the 400 and 600 sizes. Choose the drain to match maintenance access: differential-pressure (this unit) drains without attention, automatic suits unattended installations, and manual suits supervised points. This unit's 5 um element (code W) is the finer choice where downstream valves and cylinders see finer contamination than the 40 um standard tolerates. The external round gauge here reads in bar; embedded square gauges and MPa/psi/bar scales are the other options. The fitted reverse (check) valve holds downstream pressure if upstream supply is lost. PT is the standard thread; G (BSPP) and NPT are catalogue options to order, as this NPT unit is. No bracket is fitted with the J code; brackets are optional on GFR.
For sizing, flow is published as curves, not a single rating, so we cannot quote a rated flow number. Send us your application's flow and pressure requirements and we will confirm against the datasheet before you order.
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 GFR flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your required flow and working pressure and we will confirm sizing against the datasheet for this 300-size, 3/8 in unit before you order.
The W in the code selects the 5 um element instead of the 40 um standard, giving finer filtration for sensitive downstream components. The K means a reverse (check) valve is fitted, which holds downstream pressure if the upstream supply is interrupted. The J means no mounting bracket is included.
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.