The AirTAC AirTAC GFR600-20 Filter Regulator NPT 3/4 in, Square 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 automatic 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 GFR600-20 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 NPT port, a 40 um standard filter element, and an automatic drain that expels collected condensate without manual attention. The built-in regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, and the embedded square gauge reads in MPa so you can set and monitor outlet pressure directly. A reverse/check valve is fitted, and the aluminium alloy bowl suits this large-frame size.
This is a genuine AirTAC part in the GFR family, which spans sizes 200 to 600 with port options from 1/8 in to 1 in and PT, G or NPT threads. Filter grade, drain type, gauge scale and check-valve options are all orderable variations. Flow is published as capacity curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | AirTAC GFR600-20 Filter Regulator NPT 3/4 in, Square Gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, MPa 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". |
| A | Drain: Automatic 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 | GFR600 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Installed at the 3/4 in drop feeding a packaging hall, it cleans water and scale out of the compressed air main and holds a steady regulated pressure to the distribution headers, with automatic drain keeping the large aluminium bowl clear between shifts.
Mounted on the air drop serving a conveyor line's pneumatic diverters and stoppers, it filters line contamination before the cylinders and lets maintenance dial the regulated pressure the actuators were designed for, read directly off the MPa gauge.
Placed ahead of clamping and fixture circuits on a CNC machining cell, it strips water and 40 um particulate from the shop air, the check valve holds the set pressure against supply dips, and the automatic drain suits an unmanned cell.
Size 600 with a 3/4 in NPT port is the large-flow step of the GFR range; step up or down through 200/300/400/600 as your line's flow demand changes, and match the thread to your piping (PT is the standard; G and NPT are order options, and this unit is NPT). Choose the drain to suit access: automatic here means no routine draining, while manual and differential-pressure variants are available. The 40 um element is standard; specify the W code for the 5 um grade if downstream equipment needs finer filtration. The square MPa gauge is fitted; external round gauges and psi or bar scales can be ordered.
Flow for this family is published as curves, not a single rating, so we cannot quote one number here. Send us your application details and we will confirm sizing against the datasheet curves 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 capacity for the GFR series as flow curves rather than a single rated figure, so we do not quote one number here. Tell us your line pressure, regulated setpoint and the equipment you are feeding, and we will confirm the flow from the datasheet curves on request before you order.
The A code in GFR60020AJF1TK means the drain is automatic: condensate collected in the bowl is expelled without anyone opening it, which suits units mounted in awkward or unattended spots. Manual-drain and differential-pressure-drain variants of the same size are available if you prefer a different arrangement.
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.