AirTAC GFR600-25 Filter Regulator (GFR60025NK)
The AirTAC AirTAC GFR600-25 Filter Regulator (GFR60025NK) 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.
- TypeFilter regulator
- Port sizePT1"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialAluminium alloy
- Pressure gaugeNot fitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GFR600-25 Filter Regulator (GFR60025NK)
GFR60025NK is an AirTAC G-series filter regulator in the 600 frame, combining water and particulate filtration with pressure regulation in a single body on a 1 in PT port. The standard differential-pressure drain vents bowl condensate automatically, and the standard 40 um element serves general plant air. The trailing K adds a built-in reverse (check) valve that stops downstream air from pushing back through the unit when upstream pressure is lost. The N code means no gauge is fitted, and a mounting bracket is included. There is no lubricator in this unit.
This is a genuine AirTAC part. GFR filter regulators are available in 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, gauge or no-gauge variants, with or without the K check valve, and PT, G or NPT threads. 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 for your application.
AirTAC GFR600-25 Filter Regulator (GFR60025NK) Technical Specifications
| Model | AirTAC GFR600-25 Filter Regulator (GFR60025NK) |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (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 | Not fitted |
| 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. 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.
Model Code: AirTAC GFR600-25 Filter Regulator (GFR60025NK)
| 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (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. |
| 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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) |
Where the AirTAC GFR600-25 Filter Regulator (GFR60025NK) Is Used
Automotive weld cell air drop
Body-shop weld cells take a regulated 1 in feed for clamps and cylinders; the check valve isolates the cell circuit from main-air dips, and the differential drain keeps the bowl clear across shifts.
Food tray sealer supply line
A tray-sealing machine's 1 in service feed is filtered to 40 um and held at setpoint; the built-in check valve prevents the machine's residual pressure from backdriving the regulator between cycles.
Steel mill actuator station
Distributor-type actuator stations in rolling and handling lines run on large-bore mains; this 600-frame unit regulates the drop and its reverse valve guards the circuit when the plant header pressure collapses.
Is the AirTAC GFR600-25 Filter Regulator (GFR60025NK) the Right Unit?
Use the 600 frame and its 1 in PT port where circuit demand is highest; step to 400, 300 or 200 for smaller lines. The differential-pressure drain needs no operator input - choose A for fully automatic drainage or M for manual blowdown where loads are light. The 40 um standard element suits general air; the W variant refines to 5 um. K fits the reverse-flow check valve, absent on the plain GFR60025N, useful where stored downstream air must be held. Regulation range with differential-pressure drain is 0.15-0.9 MPa (20-130 psi); N means no gauge, with square or round gauge variants available. G and NPT threads are catalogue options. Flow is published as curves, not a single rating, so ask us to confirm sizing before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR600-25 Filter Regulator (GFR60025NK) FAQ
There is no single rated flow figure to give: AirTAC publishes G-series flow as performance curves. Send us your operating pressure and required air volume and we will confirm the datasheet curve and correct sizing for your application before you order.
Only the trailing K: GFR60025NK has a built-in reverse (check) valve that blocks backflow through the unit when upstream pressure is lost, while GFR60025N has no reverse-flow protection. Everything else - 1 in PT port, differential-pressure drain, 40 um element, no gauge - is the same.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GFR600-25 Filter Regulator (GFR60025NK)
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.