The AirTAC GFR600-20 AirTAC Filter Regulator 3/4in PT 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: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size-600 configuration is fitted with a 3/4 in PT port, a fine 5 um filter element (the W grade, against the 40 um standard), a manual drain for controlled bowl purging, and a check valve that holds downstream pressure when the upstream supply is lost. The round external gauge reads in psi, and the aluminium alloy bowl suits this largest frame in the range.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain, filter-grade, gauge and thread options, and max inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR600-20 AirTAC Filter Regulator 3/4in PT 5um Manual Drain |
|---|---|
| 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 | 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. |
| (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) |
Feeds clean, regulated air to the tool-change and clamping circuits of a machining centre, where the 5 um element protects solenoid valves from fine particulate and the check valve holds clamp pressure if the shop supply drops.
Installed at the header feeding gripper and filler actuators on a bottling line, regulating header pressure to the set point the cylinder sizing assumes and letting operators drain the aluminium bowl on a scheduled round.
Mounted ahead of the valve manifold on a robotic assembly station, combining water and particle removal with set-and-hold regulation for pick-and-place cylinders, with the psi gauge giving operators a local pressure readout.
Size and port step up with required flow: this is the 600 frame with a 3/4 in PT port, the largest GFR offering, so choose it when your line demand sits above what a 400 or 300 unit can pass - we will check the flow curve against your consumption before you order. Drain type is a real choice: manual (as coded here) gives you deliberate, controlled purging; automatic and differential-pressure drains purge without operator action. The 5 um element (W) is the finer grade for air that feeds sensitive components; 40 um is standard. Gauge scale is selectable (MPa, psi or bar - this unit carries a round psi gauge), thread can be ordered as PT (standard), G (BSPP) or NPT, and brackets are optional (this configuration ships without one).
Flow for this family is published as curves, not a single rated figure, 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 the GFR series as curves, not as a single rated number, so there is no one figure we can honestly quote. Tell us your line consumption and operating pressure and we will confirm the flow curve data from the datasheet for this exact 3/4 in, size-600 unit before you order.
The M in this code means the bowl is purged by hand: an operator opens the drain when needed. That suits installations that are visited regularly or where you want full control over discharge. If the unit sits in an unattended position, the automatic or differential-pressure drain options on the same frame purge without operator action - those are separate codes you can order.
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.