The AirTAC GFR20008LNTK AirTAC Filter Regulator NPT1/4 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 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 GFR20008LNTK is a size-200 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is built with a 1/4 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a polycarbonate bowl. It is the low-pressure (L) type, so it is intended for circuits that hold a lower regulated set-point than a standard unit, and it carries a built-in reverse (check) valve so downstream pressure is held if the upstream supply is lost. No gauge is fitted (code N) and a mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in and PT, G and NPT thread options, plus manual or automatic drain, a 5 um (W) filter grade, gauge variants and standard or low-pressure regulation. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR20008LNTK AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| 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. 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| 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" · 40 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
On a pneumatic clamping station where the clamps must hold at a lower set-point than the shop air line, this filter regulator cleans the air, holds the reduced pressure downstream, and the built-in check valve keeps the clamps from venting if the main supply drops.
Instrumentation and small process skids often need clean, dry, gently regulated air rather than full line pressure. The 40 um element removes water and particulate ahead of the regulator, and the low-pressure type suits circuits that operate well below standard set-points.
Pneumatic cylinders driving diverters, pushers and stops on a packaging conveyor need filtered air and a stable reduced pressure. This unit provides both in one body at the 1/4 in port size typical of those drops, with the differential drain keeping the bowl clear during continuous running.
Start with the port and size step: this unit is size 200 with a 1/4 in NPT port, the smallest GFR frame, so size up to 300/400/600 if your line needs more flow capacity. Choose the drain to suit service: differential-pressure (this model) needs no attention while air is flowing, automatic (A) empties the bowl on a cycle, and manual (M) is emptied by hand. Filter grade is 40 um standard here; specify the W option if you need 5 um. Gauge is a real choice: this code (N) ships without a gauge, while other variants include an embedded square gauge with MPa, psi or bar scale. Thread is NPT on this model; PT and G (BSPP) are catalogue options to order. The L code makes it the low-pressure type, and the K code fits a reverse/check valve.
Because flow is published as curves and not a single rated figure, 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. 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 curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your application and we will confirm the flow and sizing data from the datasheet on request.
The N in GFR20008LNTK means no gauge is fitted; other GFR variants include an embedded square gauge with MPa, psi or bar scale. L marks the low-pressure regulator type, intended for circuits held below standard set-points, and K means a reverse (check) valve is built in. The exact regulation range of the low-pressure type is not published in the catalogue sheet, so ask us to confirm it 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.