The AirTAC GFR600-20F2K AirTAC Filter Regulator PT3/4 Square psi Gauge 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 PT3/4" 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 GFR600-20F2K is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 600 unit has a 3/4 in PT port, the standard 40 um filter element, and a differential-pressure drain that bleeds condensate automatically whenever the pressure drop across the element is high enough - no daily manual draining. The fitted square gauge reads downstream pressure in psi, and the built-in reverse (check) valve holds the set pressure if the upstream supply is interrupted. The aluminium alloy bowl suits this larger frame, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR range, which spans sizes 200 to 600 with ports from 1/8 to 1 in, optional 5 um (W) elements, automatic or manual drains, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR600-20F2K AirTAC Filter Regulator PT3/4 Square psi Gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT thread) |
| Filtering grade | 40 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 | Aluminium alloy |
| Pressure gauge | Fitted — square, psi scale |
| 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. 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.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| (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. |
| (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. |
| (blank) | PT 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 | GFR600 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Installed at a 3/4 in branch line feeding an assembly hall, it cleans water and scale from the header air and holds a steady regulated pressure to every workstation downstream.
Ahead of a pneumatic press or clamping fixture, it filters incoming plant air and sets the working pressure the tooling was designed for, with the check valve holding the setting through supply dips.
On a packaging or bottling line with many cylinders and actuators on one 3/4 in feed, it strips condensate and particulates and keeps line pressure stable so downstream valves cycle consistently.
Size 600 with a 3/4 in PT port is the step to choose when your line's flow demand outgrows 1/2 in units - match the port step to the pipe size and required flow. The 40 um element is the standard choice for general plant air; specify the W variant only if you need 5 um. The differential-pressure drain suits steady-running drops; choose automatic (A) for intermittent duty or manual (M) where you want controlled draining. The square psi gauge is fitted here; MPa or bar scales and an external round gauge are alternatives. PT is the standard thread; G (BSPP) and NPT are order options. A bracket is included, and the K code means a reverse/check valve is fitted.
Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote a number. Send us your application details and we will confirm the flow and sizing from the datasheet on request.
The differential-pressure drain (the default on this model) discharges condensate automatically when the pressure drop across the 40 um element rises, so it suits continuously running lines. Choose the A code for automatic draining on intermittently used drops, or M for a manual drain you operate yourself.
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.