AirTAC GFR400-15 Filter Regulator (GFR40015AF1K)
The AirTAC AirTAC GFR400-15 Filter Regulator (GFR40015AF1K) 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 PT1/2" ports, a automatic 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 sizePT1/2"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainAutomatic drain
- Bowl materialPC
- Pressure gaugeFitted
- 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 GFR400-15 Filter Regulator (GFR40015AF1K)
The AirTAC GFR40015AF1K is a GFR-series filter regulator fitted with the K-option reverse (check) valve, which holds downstream pressure if the upstream supply is interrupted. Beyond that option it is identical in function: water and particulate filtration plus pressure regulation in one body, size 400 with PT1/2 ports, automatic drain, 40 um standard element, and the embedded square gauge with MPa scale. Maximum inlet pressure is 1.0 MPa (145 psi); setting range with automatic drain is 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with PT, G (BSPP) or NPT threads, a choice of drains, 40 um or 5 um (W) elements, optional check valve, and bracket options. Flow is published as curves rather than a single rating, so we confirm datasheet figures for your duty on request.
AirTAC GFR400-15 Filter Regulator (GFR40015AF1K) Technical Specifications
| Model | AirTAC GFR400-15 Filter Regulator (GFR40015AF1K) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa 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. 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 GFR400-15 Filter Regulator (GFR40015AF1K)
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 | GFR400 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Where the AirTAC GFR400-15 Filter Regulator (GFR40015AF1K) Is Used
Pneumatic press hold-down
On a pneumatic press circuit, filtration and regulation condition the supply while the built-in check valve helps hold the set pressure at the press cylinder if the plant air drops.
Conveyor diverters and stoppers
Feeding stoppers and diverter cylinders on a bottling conveyor, the unit filters and regulates the supply, with the check valve holding the stopped-load pressure during brief supply dips.
Trailer loading dock equipment
At a loading dock, the unit conditions and regulates air to leveller and restraint actuators, and the automatic drain copes with condensate in a damp, unattended environment.
Is the AirTAC GFR400-15 Filter Regulator (GFR40015AF1K) the Right Unit?
Choose the K suffix when trapped downstream pressure matters, for example to keep a clamp or cylinder loaded during a supply dropout. Size 400 with 1/2 inch ports serves higher-demand lines; step to 600 if the curves require it. Automatic drain keeps draining unattended (0.15-0.9 MPa range); manual drain widens the range to 0.05-0.9 MPa. The 40 um element is standard, W gives 5 um. Thread is PT as standard, with G and NPT as orderable options, and a bracket is included.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" 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 PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC GFR400-15 Filter Regulator (GFR40015AF1K) FAQ
Flow for the GFR series is published by AirTAC as characteristic curves rather than one rated figure, so we do not state a number here. Tell us your application and we will confirm the datasheet figures and correct sizing on request before you order.
K means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply fails. Everything else is unchanged: PT1/2 ports, automatic drain, 40 um element, square MPa gauge, 1.0 MPa maximum inlet and a 0.15-0.9 MPa setting range.
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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 GFR400-15 Filter Regulator (GFR40015AF1K)
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.