The AirTAC GFR600-25 AirTAC Filter Regulator NPT 1 in Manual Drain 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 PT1" 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 GFR600-25 is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This size 600 unit is configured with a 1 in NPT port, a manual drain bowl, the standard 40 um filter element, an embedded square gauge scaled in bar, and a reverse (check) valve fitted. No mounting bracket is included with this code. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulator adjustment range for this manual-drain configuration is 0.05-0.9 MPa (7-130 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of PT (standard), G or NPT thread, differential-pressure, automatic or manual drains, 40 um or 5 um (W) filter grades, gauge scale options, and an optional reverse valve. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator NPT 1 in Manual Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 40 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 — square, bar 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. |
|---|---|
| 25 | Port size PT1". 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 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 · PT1" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Installed at the takeoff from a plant air header feeding a packaging line: the bowl strips water and pipe-scale carried over from the compressor room, and the regulator sets a steady working pressure for the line's actuators. The manual drain suits a header location an operator passes on rounds.
Mounted ahead of directional valves on a pneumatic press or clamping fixture: the 40 um element protects valve spools and seals from particulate, while the regulator holds the clamping pressure the tool was set up for. The check valve holds the downstream circuit if upstream supply dips.
Fitted on the air drop feeding diverters, stoppers and sorter fingers on a conveyor line: clean, regulated air keeps the cylinders' stroke behaviour consistent through the shift. The 1 in NPT port matches a main line drop serving several stations.
Size 600 with a 1 in port is the largest step in the GFR range; size up or down (200/300/400/600) according to the air demand of the line. For the drain, choose manual (this code) where an operator can bleed the bowl on a routine, automatic for unattended draining, or the differential-pressure default. Filter grade is 40 um standard; specify W for 5 um where finer particulate capture is needed. The square gauge is embedded as standard with MPa, psi or bar scales (this unit: bar); an external round gauge is optional. Thread is PT as the catalogue standard, with G and NPT as order options - this code is NPT. Bracket is optional (this code has none, code J).
Because GFR flow is published as curves and not as a single rated figure, we do not quote a flow number here. Send us your application's air demand 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 G-series flow as curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure here. Tell us your application's air demand and we will confirm the flow and sizing against the datasheet on request before you order.
The M in the code specifies a manual drain bowl: condensate collects in the bowl and an operator opens the drain at intervals. Choose manual where the unit is accessible and checked routinely; choose automatic (code A) for unattended locations, or the differential-pressure default where draining should follow loading. This manual-drain configuration also gives the wider 0.05-0.9 MPa (7-130 psi) adjustment range.
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.