The AirTAC GFR600-25T AirTAC 1 in NPT Filter Regulator, Low-Pressure 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 GFR600-25T is a filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your setpoint. This size 600 unit takes a 1 in NPT thread, carries the standard 40 um filter element and drains by hand (code M), so an operator empties the bowl as part of routine rounds. The bowl on size 600 units is aluminium alloy. It is the low-pressure type (code L); the exact adjustment range for this variant is not published, so ask us to confirm it for your setpoint. A round gauge reading in psi is fitted, and a reverse (check) valve (code K) is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family runs from size 200 to size 600 with ports from 1/8 in to 1 in, and catalogue options for thread (PT standard; G and NPT to order), drain type, 5 um filtration (code W), gauge style and scale, bracket and reverse valve. Flow for this series is published as curves rather than a single rated figure, so send us your application details and we will confirm sizing and datasheet figures on request before you order.
| Model | GFR600-25T AirTAC 1 in NPT Filter Regulator, Low-Pressure |
|---|---|
| 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 | 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. |
|---|---|
| 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)). |
| 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. |
| (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) |
Feeding wrapper and clamp cylinders that run below standard shop pressure - the low-pressure regulator holds a gentle setpoint while the 40 um element keeps water and debris out of the directional valves, and the manual drain is emptied on the shift check round.
A 1 in NPT filter regulator mounted at the header feeding gate and stopper cylinders, with the round psi gauge read at a glance and the manual drain tipped during scheduled line washdowns.
Cleaning and regulating the pilot line that actuates big diaphragm valves at a water treatment plant - particulate and water stripped before the pilot regulators, with the setpoint read off the fitted psi gauge.
Choose the size by the port and flow your line needs: this code is size 600 with a 1 in NPT port, the largest step in the family. Drain is a real choice - manual (this code, M) for controlled, operator-timed draining, or automatic (A) and differential-pressure (blank) where the unit should look after itself. The 40 um element here is the standard grade; specify W for the 5 um option if downstream equipment needs finer filtration. The round gauge fitted reads in psi; the embedded square gauge and MPa or bar scales are the other catalogue options. Thread is NPT on this code; PT is the standard and G (BSPP) is also available to order. No bracket is included (code J). Flow is published as curves, not a single rating, so ask us to confirm this unit 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 rather than a single rated figure, so there is no one number we can quote. Send us your line pressure, setpoint and downstream demand and we will confirm the flow curve and datasheet figures for this 1 in NPT unit on request.
This code carries M, the manual drain: an operator opens it to dump collected water, which suits attended points on a regular check round. If the unit sits where nobody passes, order the automatic (A) or differential-pressure (blank) drain variant instead - same filter regulator, different drain.
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.