The AirTAC AirTAC GFR600-25LC3T Filter Regulator 1 in NPT 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 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 GFR600-25LC3T is a filter regulator: water and particulate filtration plus pressure regulation combined in one body, so a single size-600 unit cleans the air and holds your set pressure downstream. This configuration is the large-frame 600 size with a 1 in NPT port, the low-pressure regulator type, a 40 um standard filter element, differential-pressure drain, an aluminium alloy bowl, a round pressure gauge reading in bar, and a mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, 40 um or 5 um (W) filtration, differential-pressure, automatic or manual drains, and square or round gauges in MPa, psi or bar scales. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | AirTAC GFR600-25LC3T Filter Regulator 1 in NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 40 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 — round, bar scale |
| 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. 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| (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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
On a stamping or forming press served by a plant ring main, this 600-size filter regulator cleans the incoming air and holds a steady low-pressure setting to the press clutch and counterbalance circuits, with the differential-pressure drain shedding condensate on each pressure cycle.
On a bottling or canning line where conveyor gate cylinders and pusher arms run at modest pressures, the low-pressure regulator type lets operators set a gentle working pressure, while the 40 um element keeps pipe scale and water out of the valve bank.
On a process skid where large quarter-turn pneumatic actuators open and close butterfly and ball valves, this 1 in NPT filter regulator conditions the header air and maintains the actuator supply pressure, with the bar-scale round gauge giving operators a local pressure readout.
Start with the port step: this 600 size carries a 1 in NPT port, the largest in the GFR range, so match it to your line size and required flow - the smaller 200/300/400 sizes cover 1/8 to 3/4 in. This unit is the low-pressure regulator type, so if your set pressure sits below the standard type's range, this is the right variant; we confirm the exact adjustment range on request. The 40 um element is the standard grade; choose the W suffix for 5 um when finer particulate removal matters. Drain is differential-pressure here, which bleeds condensate automatically as pressure drops across the element; automatic (A) and manual (M) drains are also catalogue options. The round gauge reads in bar; square gauges and MPa or psi scales are available. Thread is NPT on this unit, with PT standard and G as order options. Because flow is published as curves and not a single rating, send us your application details 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. Without the K option, air cannot flow back 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 we do not quote a figure here. Tell us your line size and air demand and we will confirm the flow from the datasheet for this exact 600-size, 1 in NPT configuration before you order.
The L in the code marks the low-pressure regulator variant, intended for set pressures below the standard type's range. The exact adjustment range for this variant is not published in our sheet, so ask us to confirm it on request. Everything else decodes normally: 40 um filtration, differential-pressure drain, round bar gauge, aluminium alloy bowl and NPT 1 in port.
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.