The AirTAC GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um 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 differential-pressure 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 size 600 unit is built with a 1 in NPT port, the 5 um filter element (code W) for finer filtration than the standard 40 um grade, a differential-pressure drain that bleeds condensate automatically as flow passes through, and an aluminium alloy bowl. It is the low-pressure type, fitted with an embedded square gauge scaled in psi and a reverse (check) valve, and supplied without a mounting bracket.
This is a genuine AirTAC part in the GFR family, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, thread choices of PT (standard), G and NPT, drain types, filter grades and gauge scales. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. 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 |
|---|---|
| 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 | 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure 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. |
| 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 · PT1" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Feeding a low-pressure pneumatic forming or clamping press that needs clean, regulated air at a large 1 in connection, with the check valve holding downstream pressure if the supply drops.
Conditioning air for the cylinder and actuator header on a bottling or filling line, where the 5 um element protects valves from fine particulate and the psi gauge lets operators verify set pressure at a glance.
Serving as the single filter-regulator point at the inlet of a large automated machine or control panel, combining water and particulate removal with pressure regulation in one aluminium-bowled body.
Size 600 with a 1 in port is the largest step in the GFR range; step down to 400, 300 or 200 if your line flow is modest, since port size tracks the flow curve rather than a single rated figure. The 5 um element (W) suits downstream equipment sensitive to fine particulate; the standard grade is 40 um if coarser filtration is acceptable. The differential-pressure drain is the default and needs no attention during operation; automatic (A) and manual (M) drains are catalogue options if your duty cycle calls for them. The embedded square gauge here reads in psi; MPa and bar scales are available, and an external round gauge is an option. Thread is NPT on this unit, with PT (standard) and G offered as order options; a mounting bracket (J) can be added if you need one. Because flow is published as curves, not a single rating, 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 this series as curves, not as a single rated number, so we do not quote a figure. Tell us your application and required flow and we will confirm the datasheet curve and sizing for you on request before you order.
The W in the code GFR60025LJF2WTK selects the optional 5 um filter element instead of the standard 40 um grade, for finer particulate removal. F2 selects the embedded square gauge scaled in psi; MPa and bar scales are catalogue options, and an external round gauge is also available.
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.