The AirTAC GFR200-08 AirTAC Filter Regulator NPT1/4 5 um Square Gauge 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 GFR200-08 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one compact body. This size 200 unit has a 1/4 in NPT port, a 5 um filter element for finer filtration than the standard 40 um grade, a differential-pressure drain that bleeds collected condensate automatically when the pressure differential across the element is sufficient, and an embedded square pressure gauge reading in MPa. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and the unit is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing). The polycarbonate bowl keeps the condensate level visible at a glance.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and with options including manual or automatic drains, a 5 um element, square or round gauges with MPa, psi or bar scales, a reverse/check valve and NPT or G threads. We confirm flow and other datasheet figures on request, because flow is published as curves rather than a single rating.
| Model | GFR200-08 AirTAC Filter Regulator NPT1/4 5 um Square Gauge |
|---|---|
| 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, MPa 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.
| 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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. |
| (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 | GFR200 · PT1/4" · 5 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
Point-of-use conditioning for a machining centre's pneumatic circuits: the 5 um element protects precision valves from fine particulate and carryover water, while the regulator holds a steady setting for clamping and tool-change actuators.
Feeding diverters, gate cylinders and sealing jaws on a packaging conveyor, where the differential-pressure drain keeps condensate moving out during continuous shifts and the gauge lets operators verify the set pressure at a glance.
Conditioning the purge air for analytical instruments and test enclosures, where the 5 um grade keeps fine contaminants out of sensitive components and the regulator maintains the gentle, stable pressure the enclosure design calls for.
Size 200 with a 1/4 in port suits lighter-duty lines; if your demand sits near the top of the size 200 flow curve, step up to size 300 or 400, which share larger ports and higher flow. The 5 um element on this unit is the right choice when downstream valves and cylinders need finer protection than the standard 40 um grade; note that finer elements cost more pressure drop, so check the curve. The differential-pressure drain suits steady, continuous operation; choose an automatic drain (A) for unattended duty or a manual drain (M) for intermittent use. The square gauge here reads in MPa; psi and bar scales are available, as is an external round gauge. This unit ships without a mounting bracket (code J) - add one if you want the unit secured off the line. Thread is NPT on this code; PT is the standard catalogue thread and G (BSPP) is also available to order.
Flow for this family is published as curves, not a single rated figure, so please 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. 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 GFR series as curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM figure. Send us your application details and we will confirm the flow and datasheet figures for this exact model on request before you order.
The differential-pressure drain is the catalogue default: it discharges collected condensate automatically when the pressure drop across the filter element is high enough, with no operator input. If the unit runs intermittently or at low differential, choose the automatic drain (code A) or the manual drain (code M), which also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi).
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.