The AirTAC GFR600-25 AirTAC Filter Regulator 1 in NPT 5 um Auto 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 PT1" 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 GFR600-25 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the largest GFR size, 600, with a 1 in NPT port for high-flow main-line installations. It carries the 5 um filter element (code W) for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, and an aluminium alloy bowl, which is the bowl material used at size 600. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and maximum inlet pressure is 1.0 MPa (145 psi). No gauge is fitted (code N), so add a gauge if local pressure indication is required. Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices of differential-pressure, automatic or manual, filter grades of 40 um standard and 5 um optional, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600-25 AirTAC Filter Regulator 1 in NPT 5 um Auto Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 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 | Not fitted |
| Reflux valve | Not fitted |
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. |
|---|---|
| 25 | Port size PT1". 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. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (blank) | No reverse-flow valve (the default). |
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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Positioned at the drop to a paint booth, the 5 um element and automatic drain keep water and fine particulate out of the spray air while the regulator holds a steady setting for the booth's air-operated equipment.
Feeding the pneumatic cylinders on a carton-sealing or palletising conveyor, this 1 in unit filters and regulates the main line air serving multiple actuators along the machine.
Supplying clean, regulated air to pneumatically actuated butterfly and knife-gate valves in a treatment plant, with the automatic drain handling condensate in a plant room that is not visited daily.
Size and port are the first choice: the 600 body with a 1 in NPT port suits main air lines where higher flow is needed, while smaller GFR sizes cover lighter duty - match the size step to the flow your line requires. Drain type is a real decision: automatic drain (this unit) suits unattended or hard-to-reach installations, manual drain suits attended plants with a routine walk-round, and differential-pressure drain is the default. Filter grade is 40 um standard or 5 um (code W, this unit) where downstream equipment needs finer air. Gauge and scale (MPa, psi or bar) are optional since no gauge is fitted here. Thread is PT as standard with G and NPT as order options - this unit is NPT. A bracket is included for panel or wall mounting.
One honest note on sizing: flow for this family is published as curves, not a single rated figure, so we cannot quote a number here. Send us your application details and we will confirm the datasheet flow figures against your requirement before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
We do not quote a single rated flow figure because AirTAC publishes GFR performance as flow curves, not one number. Tell us your line pressure and the flow your application needs, and we will confirm the datasheet figures for this exact model on request before you order.
The A in the code means an automatic drain: collected condensate is expelled from the aluminium bowl without anyone opening it. Choose it for unattended installations, elevated or awkward mounting positions, or any plant without a regular manual-drain routine. Manual and differential-pressure drain versions of the same size are available if you prefer.
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.