The AirTAC GFR200-08 AirTAC Filter Regulator 1/4 in NPT Low-Pressure is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 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 size-200 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure type, fitted with a manual drain bowl in polycarbonate, a 40 um standard filter element, and an embedded square gauge scaled in psi. The 1/4 in NPT port suits compact supply drops, point-of-use panels and small machine circuits where the supply pressure itself is modest and must be set downstream.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge scale options and PT, G or NPT threads. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request before you order.
| Model | GFR200-08 AirTAC Filter Regulator 1/4 in NPT Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi 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. 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.
| 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
Feeds the clamp cylinders of a bench-top press where the workpiece requires a deliberately low holding pressure; the filter section keeps scale and condensate out of the clamp valves while the regulator holds the setpoint, with the psi gauge giving the operator a direct reading.
Installed ahead of the sealing-head actuators on a packaging line that runs at reduced pressure to avoid crushing delicate film; the manual-drain bowl is emptied at shift change as part of the machine's daily checks.
Conditions the shop-air feed to a lab test rig where instruments and small cylinders need clean, low-pressure air; the 40 um element stops particulate reaching the rig, and the psi-scaled gauge lets the technician verify the setpoint at a glance.
Start with the port step: size 200 with 1/4 in NPT covers small supply lines, but step up to size 300 or 400 if the circuit draws more air - match the size to the flow demand of the application. This unit is the low-pressure type, intended for circuits where the regulated pressure sits below the standard range; the exact adjustment range for the L type is not published in the summary data, so confirm it with us against your setpoint before ordering. The manual drain means an operator opens the bowl drain periodically - choose the automatic or differential-pressure drain variant instead if the unit is mounted where routine draining is impractical. The 40 um element is the standard grade; specify W for the 5 um element where finer protection is needed. The square gauge here reads in psi; MPa and bar scales are also available. Thread is NPT on this code; PT (standard) and G are order options. A mounting bracket is included.
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 figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing data from the datasheet on request before you order.
The M in the code specifies a manual drain: condensate collected in the polycarbonate bowl is released by opening the drain by hand, which suits positions checked during routine maintenance. This is also the L (low-pressure) type; its exact adjustment range is not published in the summary data, so confirm the range against your setpoint with us on request.
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.