Airtac GFR Filter Regulator GFR400C15C1WK
The AirTAC GFR Filter Regulator GFR400C15C1WK 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure 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 GFR Filter Regulator GFR400C15C1WK
The GFR400C15C1WK is a genuine AirTAC G-series filter regulator: filtration and pressure regulation combined in one body, with a drain bowl and no lubricator stage. The W suffix specifies the finer 5 um filter element, and the K suffix adds a reverse (check) valve that holds downstream air if the upstream supply is interrupted. This 400-size unit carries a PT1/2 port, the series-default differential-pressure drain and an external round pressure gauge reading in MPa. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range with this drain type is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C. The bowl is polycarbonate.
AirTAC builds the G series in 200, 300, 400 and 600 sizes, with G(BSPP) and NPT thread options and automatic or manual drains as catalogue choices. We confirm flow and full datasheet figures on request, because AirTAC publishes flow as curves rather than a single rating.
Airtac GFR Filter Regulator GFR400C15C1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15C1WK |
|---|---|
| Series | GFR400 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 | PC |
| 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.
Model Code: Airtac GFR Filter Regulator GFR400C15C1WK
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (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.
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR400C15C1WK Is Used
Pilot-air for large process valves
Supplies clean 5 um pilot air to positioners and piloted process valves on a plant skid, with the check valve holding pilot pressure through supply dips.
Test-bench clamping
Feeds the clamping circuit of a hydraulic or pneumatic test bench, keeping fixtures pressurized with filtered air even if the shop supply drops.
Maintenance-shop air drops
Serves a maintenance bay's regulated outlets for impact tools and test rigs, where the 5 um element and check valve protect both tools and work in progress.
Is the Airtac GFR Filter Regulator GFR400C15C1WK the Right Unit?
Specify the WK combination when you need both finer 5 um filtration and a check valve that holds downstream pressure through supply interruptions. The 400-size body is ported PT1/2, one step above the 300 series. Drain choices are differential-pressure (this unit), automatic (A) or manual (M), with a 0.05-0.9 MPa (7-130 psi) regulating range on manual-drain versions. The round gauge reads MPa; psi and bar scales are orderable. PT is the standard thread, with G(BSPP) and NPT as catalogue options, and a mounting bracket is included. Flow is published as curves, not one rated figure, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR400C15C1WK FAQ
AirTAC publishes G-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow curve and full datasheet figures for this model on request.
Yes. PT is the standard thread on this model, and G(BSPP) (trailing code G) and NPT (trailing code T) are catalogue thread options you can order for the same GFR400 size and 1/2-inch porting. Tell us which thread your pipework uses and we will confirm the correct order code.
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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 GFR Filter Regulator GFR400C15C1WK
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.