Airtac GTFR Filter Regulator GTFR20008SNK
Genuine AirTAC filter regulator, order code GTFR20008SNK from the GTFR200 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Port1/4" (08)
- Type · gaugeStandard (S) · No gauge (N)
- ConfigurationWith bracket · 40 µm element · PT thread · Check valve (K)
- Port1/8" (06), 1/4" (08)
- ThreadPT (standard)
- Filter element40 µm (standard), 5 µm (W)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GTFR Filter Regulator GTFR20008SNK
GTFR20008SNK combines three ordering options on the 1/4 inch (08) GTFR200 body: standard (S) pressure type, no gauge (N), and check valve (K). The check valve keeps downstream pressure in the circuit when the upstream side is exhausted, while the standard 40 um element handles particle removal on PT-threaded 1/4 inch piping. A mounting bracket is included in this code, so the unit can be panel- or wall-mounted out of the box.
The hardware is the GT200-series short PC bowl format with differential plus manual drain, meaning condensate is drained automatically once a level differential builds and can also be dumped by hand. This gaugeless, valve-equipped build pairs well with remotely monitored machines that still need pressure retention across supply interruptions.
Airtac GTFR Filter Regulator GTFR20008SNK Technical Specifications
| Order code | GTFR20008SNK |
|---|---|
| Product | Filter Regulator |
| Port | 1/4" (08) |
| Type · gauge | Standard (S) · 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.
How to choose
GTFR20008SNK sits between two gauge-fitting choices: pick it over gaugeless GTFR20008SN when backflow retention matters, and over gauge-fitted, check-valved GTFR20008SK when you want the same K function without a dial on the body. For a 1/8 inch line choose the 06 equivalent (GTFR20006SNK); for finer 5 um filtration with the same valve, look at the W-element siblings; for regulation at 0.15 - 0.4 MPa (20 - 58 psi) order the L type, e.g. GTFR20008LNK. Leaving J out of the code is what keeps the bracket included.
Applications
Clamp circuits that must not lose pressure
On a 1/4 inch PT-threaded clamp or hold-down line, the K check valve keeps downstream pressure applied even if the upstream supply is vented during a stoppage.
Remote-monitored air branches in storage automation
Gaugeless units controlled from a central pressure switch suit conveyor and warehouse branches, while the check valve holds actuator positions if supply air drops.
Downstream pressure retention behind cylinder loads
The check valve prevents regulated air from escaping back through the filter regulator when an upstream valve exhausts, useful before vertically loaded cylinders and presses.
FAQ
What are the key figures of the GTFR20008SNK?
Port: 1/4 inch (ordering code 08). Pressure type: standard (S), no gauge fitted (N option). Configuration: 40 um filter element, PT thread, check valve (K) fitted, mounting bracket included. Bowl: short PC bowl with differential + manual drain. Fluid: air. The low-pressure L variant regulates 0.15 - 0.4 MPa (20 - 58 psi); confirm the standard-type regulated range from the datasheet.
Why order the K option if the unit already has a manual drain?
The drain and the check valve do different jobs in GTFR20008SNK. The differential + manual drain removes condensate collected in the short PC bowl, either automatically by differential or by hand. The K check valve blocks reverse flow through the whole unit, so regulated downstream pressure survives an upstream shutdown. Without K (as in GTFR20008SN), downstream air would simply bleed back out through the regulator when supply is cut.