The AirTAC GFR20008F2WTK AirTAC Filter Regulator 1/4 in NPT, 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 GFR20008F2WTK is an AirTAC GFR200 filter regulator: filtration and pressure regulation combined in a single body, sized for 1/4 in NPT ports. It removes water and particulate down to 5 um (the finer W grade, versus the 40 um standard) and holds your set downstream pressure within a 0.15-0.9 MPa (20-130 psi) adjustment range at up to 1.0 MPa (145 psi) inlet. This configuration carries an embedded square gauge scaled in psi, a differential-pressure drain that bleeds the bowl automatically as flow passes, a built-in reverse/check valve, and a mounting bracket. The polycarbonate bowl suits the non-freezing -5 to 70 C operating range.
This is a genuine AirTAC part, not a copy. The GFR family spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 in, thread choices of PT (standard), G or NPT, manual or automatic drain options, 40 um or 5 um filtration, and MPa, psi or bar gauge scales. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet numbers against your application before ordering.
| Model | GFR20008F2WTK AirTAC Filter Regulator 1/4 in NPT, 5 um |
|---|---|
| Series | GFR200 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 — 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. 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.
| GFR200 | G-series filter regulator, 200 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 06 = PT1/8", 08 = PT1/4". |
| (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). |
| 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. |
| 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 | GFR200 · PT1/4" · 5 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
Mounted at the drop to a machining centre's pneumatic circuit, it strips water and 5 um particles from the shop-air line and holds a steady regulated pressure to the tool-changer and clamping valves, with the psi gauge giving the operator a direct setpoint readout.
Installed ahead of the cylinders and diverters on a carton packaging conveyor, it keeps the regulated pressure stable as multiple actuators cycle, while the check valve holds the downstream setting against supply-side dips and the auto-draining bowl keeps condensate out of the valves.
Fitted on the air feed to analytical or laboratory automation equipment, the 5 um grade protects sensitive pilot valves and probes from particulate and water carryover, and the regulated, gauge-monitored output keeps the instrument's pneumatic functions repeatable.
Start with the port step: 1/4 in NPT on this size-200 unit, stepping up through the GFR300/400/600 range as your line and required flow grow - match the port to the supply line, then verify flow. Choose the drain to suit access: this unit's differential-pressure drain needs no attention during operation, while manual and automatic drains are orderable alternatives. The 5 um W grade here suits air going to sensitive valves and instruments; the 40 um standard grade is fine for general shop-air protection. The fitted square gauge reads in psi; MPa or bar scales and an external round gauge are options. Thread is NPT here, with PT standard and G available to order, and the mounting bracket is included.
One honest note on sizing: AirTAC publishes flow for this series as curves, not a single rated figure, so we cannot quote a rated l/min or SCFM number. Send us your application details and we will confirm the sizing from 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 GFR series as performance curves rather than a single rated figure, so we do not quote a rated l/min, SCFM or Cv number. Tell us your line size and demand and we will confirm the flow from the datasheet for this 1/4 in NPT, size-200 unit before you order.
The K in the code means a reverse/check valve is fitted, so downstream pressure is held if the supply drops. The F2 means the embedded square gauge is fitted and scaled in psi; MPa or bar scales, an external round gauge, or no gauge at all are available on other order codes in the same series.
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.