The AirTAC GFR600-20 AirTAC Filter Regulator NPT3/4 5um Manual Drain 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 filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This size-600 unit is fitted with NPT3/4 ports, a fine 5 um filter element (code W), a manual drain on the bowl, a round pressure gauge reading in psi, and a reverse/check valve. The manual drain means an operator opens the drain at the bottom of the bowl to discharge collected condensate, which suits installations that are checked as part of a routine walk-round. The 600-size bowl on this model is aluminium alloy, and the maximum working (inlet) pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8" to 1", a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um fine filtration, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-20 AirTAC Filter Regulator NPT3/4 5um Manual Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | 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. Standard type, regulating 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard 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. |
| 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Feeding spray-booth and paint-pump air drops on a 3/4" main, where the 5 um element helps keep finer particles out of the air reaching atomising equipment and the regulator holds a steady setpoint for consistent coating work.
Conditioning the air feeding carton sealers, case erectors and wrapping machines on a 3/4" header, removing water and particulate before the air reaches the machine's valve and cylinder circuit at a regulated pressure.
Mounted at the inlet of a control panel or air manifold serving multiple actuators, filtering and regulating the branch supply while the check valve holds the downstream circuit against momentary supply reversals.
Size and port: the 600 frame with NPT3/4 ports is the step to take when the line and the air demand at the machine call for 3/4" piping; smaller frames (200/300/400) step down through 1/8" to 1/2". Drain: this unit is manual-drain, giving the widest regulation span of 0.05-0.9 MPa (7-130 psi); automatic or differential-pressure drain versions regulate 0.15-0.9 MPa (20-130 psi) instead, so pick manual if the lowest setpoints matter or if someone is on site regularly to drain the bowl. Filtration: the 5 um element (code W) is the finer choice against the 40 um standard - use it where downstream valves and cylinders are sensitive to finer particles. Gauge: this configuration carries an external round gauge on a psi scale; square embedded gauges and MPa or bar scales are the other catalogue options. Thread: NPT is ordered as an option - PT is the standard thread, with G (BSPP) also available. No mounting bracket is fitted on this unit (code J); bracketed versions exist. Flow for this family is published as curves, not a single rating, so send us your flow and pressure requirements 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 the GFR series as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, set pressure and required air consumption and we will confirm the datasheet flow figures for this exact model on request before you order.
The M in the code means the condensate collected in the bowl is discharged by hand: an operator opens the drain during routine checks. On this manual-drain version the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), a wider span than the automatic or differential-pressure drain versions, which adjust 0.15-0.9 MPa (20-130 psi). Choose manual drain if you need the lowest setpoints or have staff on site; choose automatic if you cannot guarantee regular draining.
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.