The AirTAC GFR600-25 AirTAC Filter Regulator NPT1 Low-Pressure 5um 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 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 GFR600-25 is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates pressure downstream. This 600-size unit has a 1 in NPT port, a manual-drain bowl in aluminium alloy, a 5 um filter element (the W grade, tighter than the 40 um standard) and the low-pressure regulator type for circuits that run at reduced pressure. A round psi gauge is fitted, no mounting bracket is supplied, 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 ports from 1/8 in to 1 in, and can be ordered with differential-pressure, automatic or manual drains, a 40 um or 5 um element, square or round gauges in MPa, psi or bar scales, G (BSPP), NPT or PT threads, and with or without a bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR600-25 AirTAC Filter Regulator NPT1 Low-Pressure 5um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 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 | 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". |
| 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. |
| 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) |
Feeds drying or blow-off air knives on a food and beverage packaging line, filtering the supply down to 5 um and holding a gentle, stable low pressure so delicate trays, cartons and labels are not disturbed.
Conditions the machine air feed in a weaving or knitting shed: water and particles down to 5 um are caught in the manual-drain bowl while the low-pressure regulator keeps the supply steady for sensitive pneumatic devices on the looms.
Supplies filtered, regulated low-pressure air to belt-cleaning nozzles and pneumatic tensioners on a conveyor line, with the round psi gauge giving operators a local pressure reading at the machine.
The real choices within the GFR family are size and port, drain type, filter grade, gauge, thread and bracket. Step through sizes 200 to 600 as your flow requirement grows; this unit is the 600 size with a 1 in NPT port. Drain options are differential-pressure (the default), automatic (code A) or manual (code M, fitted here), meaning an operator opens the drain periodically. Filter grade is 40 um standard or 5 um with the W code, which this unit carries. Gauges are an embedded square gauge as standard or an external round gauge, scaled in MPa, psi or bar; this unit has a round psi gauge. Thread is PT as standard with G (BSPP) and NPT as order options; this unit is NPT. Brackets are optional and code J means none are fitted. Flow is published as curves, not a single rating, so 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. 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 rather than a single rated figure, so we do not quote a number here. As the 600-size unit with a 1 in NPT port, it is the largest port step in the family. Send us your flow and pressure requirement and we will confirm the datasheet figures for this exact model on request.
The M in the code GFR600-25MLJC2WT specifies a manual drain: condensate collected in the aluminium alloy bowl is released by opening the drain by hand. The same unit can be ordered with a differential-pressure drain (the family default) or an automatic drain (code A) if you prefer not to rely on periodic manual attention.
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.