
Genuine AirTAC filter regulator, order code GTFR20008LNK from the GTFR200 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
The final K in GTFR20008LNK adds a check valve to the AirTAC GTFR200 filter regulator, so downstream air is held if the upstream supply is lost or drops. The 08 and L positions give 1/4 inch PT ports and the low-pressure range of 0.15-0.4 MPa (20-58 psi), and N deletes the pressure gauge.
Like every GT200-series unit, the body carries a short PC bowl, the compact version of the GA200, drained by a differential plus manual drain. A mounting bracket is included because the code has no J, and the blank element position keeps the standard 40 um element for air service.
| Order code | GTFR20008LNK |
|---|---|
| Product | Filter Regulator |
| Port | 1/4" (08) |
| Type · gauge | Low-pressure (L) · No gauge (N) |
| Configuration | With bracket · 40 µm element · PT thread · Check valve (K) |
| Port | 1/8" (06), 1/4" (08) |
|---|---|
| Thread | PT (standard) |
| Filter element | 40 µm (standard), 5 µm (W) |
| Bowl | Short PC bowl |
| Drain | Differential + manual |
| Fluid | Air |
| Low-pressure (L) version | 0.15 – 0.4 MPa (20 – 58 psi) |
Source: AirTAC Products Catalog 2026A (p.235, PDF01-P0237), GT200 ordering code and specifications.
Choose GTFR20008LNK over GTFR20008LN when the circuit must retain downstream pressure; the check valve is the only configuration difference between the two codes. Against GTFR20008LNWK, this code filters to 40 um instead of the 5 um W element. The gauge stays deleted (N), the bracket stays included, and the thread stays PT; order G or T for other threads, or 06 for 1/8 inch ports.
The built-in check valve helps keep clamps pressurized if the main supply dips, while the L range of 0.15-0.4 MPa (20-58 psi) suits low-force clamping applications.
An upstream air loss would let a vertically loaded cylinder creep; the check valve in this 1/4 inch unit blocks reverse flow so the regulated downstream pressure is retained.
On machines where a brief supply drop must not release held parts, the K check valve plus the short PC bowl keep air preparation compact inside tight machine frames.
Port: 1/4 inch, PT thread (08). Type: low-pressure L, 0.15-0.4 MPa (20-58 psi). Gauge: none (N). Element: standard 40 um. Check valve: included (K). Bowl: short PC, differential plus manual drain. Bracket: included (no J). Fluid: air.
K adds a check valve to the GTFR200 filter regulator; it is the only configuration difference from GTFR20008LN. The valve lets air pass downstream during normal operation and blocks reverse flow when the supply side loses pressure. Confirm the check-valve details from the datasheet before using the unit in safety-related circuits.