The AirTAC GFR600-20 AirTAC Filter Regulator 3/4in PT 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/4" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 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 size-600 filter regulator that removes water and particulate from compressed air and holds downstream pressure in a single body. This configuration carries a 5 um filter element (code W), a manual drain bowl, a low-pressure regulator type, a fitted reverse/check valve and an external round gauge scaled in psi. The 3/4 in PT port suits higher-flow mains, and at size 600 the drain bowl is aluminium alloy. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, thread options (PT standard; G and NPT orderable), drain types, filter grades and gauge scales. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures on request before you order.
| Model | GFR600-20 AirTAC Filter Regulator 3/4in PT 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, 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. 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.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
On a CNC fixture line running low-pressure clamp circuits, this unit filters the shop air to 5 um and holds the reduced set pressure the clamps were designed for, with the psi gauge giving the setter a direct readout at the machine.
Fed from the plant main through a 3/4 in drop, the unit strips water and fine particles before the air knives, and the low-pressure regulator holds the gentle blow-off pressure needed to dry product without disturbing it.
On a cartoning or bagging line where actuators run at reduced pressure, this filter regulator conditions the supply and keeps the setting stable, while the reverse/check valve helps hold the downstream circuit if the upstream supply drops.
Step up to size 600 when your line's required flow and the 3/4 in port call for the largest frame in the range; smaller sizes (200-400) cover lighter duty at lower cost. This unit uses the 5 um element (W) - choose it where finer particulate matters, or the standard 40 um where it does not. The manual drain (M) means an operator opens the bowl drain periodically; if you prefer unattended condensate removal, ask about the automatic or differential-pressure drain variants. The round gauge is scaled in psi (scale 2); MPa and bar scales are also available. Thread is PT as standard, with G (BSPP) and NPT as order options, and this code is supplied without a mounting bracket (J).
Because the regulator here is the low-pressure type, its exact adjustment range is not published in the standard tables - tell us your set pressure and we will confirm suitability from the datasheet. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 family as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, set pressure and expected air demand, and we will confirm the sizing from the datasheet on request before you order.
The M in this model code specifies a manual drain: an operator opens the bowl drain to release collected condensate, which suits stations that are checked as part of a routine. If the unit will sit unattended, the GFR family also offers automatic and differential-pressure drain variants - ask us and we will quote the matching code.
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.