The AirTAC GFR30008C2WTK AirTAC Filter Regulator, NPT1/4, 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 AirTAC GFR30008C2WTK is a 300-size filter regulator that removes water and particulate from compressed air and sets downstream pressure in one body. This configuration is tapped 1/4 in NPT, carries the fine 5 um filter element (code W), drains condensate by differential pressure, and is fitted with an external round gauge scaled in psi plus a reverse/check valve. The polycarbonate bowl is rated to 1.0 MPa (145 psi) maximum inlet, the standard regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the unit operates from -5 to 70 C (non-freezing). A mounting bracket is included.
This is a genuine AirTAC part from the GFR300 series, one of four sizes (200/300/400/600) spanning 1/8 in to 1 in ports, with options including 40 um or 5 um filtration, differential-pressure, automatic or manual drains, square or round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet for your application.
| Model | GFR30008C2WTK AirTAC Filter Regulator, NPT1/4, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (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, 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. 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. |
| 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeding a bench pneumatic press or clamping fixture in a machining cell: the 5 um element protects the press valve and cylinder from particulate and water, while the regulator holds a steady set pressure for consistent forming or clinching force.
Supplying the pick-and-place cylinders and diverters on a carton packaging conveyor: filtered, regulated air keeps the gripper valves from sticking and the differential-pressure drain carries away condensate that collects through a shift of continuous running.
Providing clean, regulated air to analytical instruments or purge enclosures in a laboratory or test bay: the 5 um grade and psi-scaled round gauge let technicians set and read supply pressure precisely, with the check valve holding the setting if supply dips.
Start with the port: this unit is 1/4 in NPT; step up or down through the 200/300/400/600 sizes if your line runs larger or smaller, matching the size to the flow your circuit needs. Choose the drain to suit attendance: differential-pressure (as fitted here) bleeds condensate automatically with flow, automatic drains on a timer-free basis, and manual suits intermittently attended points. Pick 40 um for general line protection or the 5 um element (this unit) ahead of valves, cylinders or instruments that need finer air. Gauge scale (MPa, psi or bar - psi fitted here) and thread family (PT standard, G or NPT to order) are decodable choices, and the bracket can be omitted with code J. Because flow is published as curves rather than a single rated figure, send us your application 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR300 series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and operating pressure and we will confirm the flow from the datasheet on request before you order.
The W in the code specifies the fine 5 um element instead of the 40 um standard, suited to feeding valves, cylinders or instruments that need cleaner air. The blank drain position is the differential-pressure type, which discharges condensate automatically as air flows past - no manual draining on a schedule. A manual-drain variant changes the regulation range to 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) on this unit.
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.