The AirTAC GFR600C25NWTK AirTAC 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 See datasheet 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 GFR600C25NWTK is an AirTAC GFR-series filter regulator: one body that first removes water and particulate from compressed air, then regulates the downstream pressure. This 600-size unit has a 1 in NPT port for the largest flow paths in the GFR line. It is built with the 5 um filter element (code W) for finer filtration than the standard 40 um grade, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the bowl is high enough. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) against a maximum inlet pressure of 1.0 MPa (145 psi), and a reverse/check valve is fitted to hold the downstream setting if upstream supply is lost. No gauge is fitted on this variant, so add a gauge at order time if a local pressure readout is needed. 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, in PT (standard), G and NPT threads, with a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge style and scale, and an optional reverse/check valve. Rated flow for this series is published as curves rather than a single figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600C25NWTK AirTAC Filter Regulator 1 in NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — factory standard, Factory standard 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. 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. |
|---|---|
| C2 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (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. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-C2 (two-unit set) |
Point-of-use conditioning ahead of spray booths and air-assisted applicators, where water carryover and pressure drift both ruin finish quality and the 5 um element plus a locked regulator setting keep the supply steady.
Feeding pneumatic cylinders, clamps and diverters on a carton or case-packing conveyor, where the 1 in port serves a whole machine drop and the check valve holds the set pressure through upstream dips.
Conditioning the shop-air drop that feeds tool changers, clamping fixtures and air-blast nozzles on a machining centre, protecting valves from particulate while holding a fixed regulated pressure.
Start with the port step: this unit is the 600 size with a 1 in NPT port, the largest in the GFR range, so match it to lines where 1/2 in or 3/4 in units would restrict the circuit. Next, choose the drain: differential-pressure (as fitted here) drains on pressure differential, automatic drains on a timed cycle, and manual requires operator action - pick based on how often the unit can be attended. Filtration is 40 um standard or 5 um with the W code; this unit carries the 5 um element for finer protection of downstream components. Gauges are optional: embedded square or external round, with MPa, psi or bar scales - this variant ships without a gauge (code N), so specify one if a readout is required. Thread is PT as the catalogue standard, with G (BSPP) and NPT as order options; this unit is NPT. A mounting bracket is included. One honest note on sizing: AirTAC publishes flow for this series as curves, not a single rated number, so send us your application details and we will confirm the 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 performance curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote honestly. Tell us your application and we will confirm the relevant flow figures from the datasheet on request before you order.
The N in the code means no gauge is supplied with this unit. GFR units can be ordered with an embedded square gauge or an external round gauge, and the gauge scale can be specified as MPa (code 1), psi (code 2) or bar (code 3). If you need a local pressure readout, order a variant with the gauge code included.
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.