Airtac GFR Filter Regulator GFR400C15MJNK
The AirTAC GFR Filter Regulator GFR400C15MJNK 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 GFR400C15MJNK
The AirTAC GFR400C15MJNK is a filter regulator: filtration and pressure regulation in one body, with a drain bowl and no lubricator. This 400-size unit has a PT1/2 port, a manual drain, the standard 40 um filter element, no gauge, and the K code means a reverse/check valve is fitted. The manual-drain unit adjusts its regulated outlet across 0.05-0.9 MPa (7-130 psi), with a maximum working pressure of 1.0 MPa (145 psi). It runs on compressed air only at -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the G-series, spanning 200, 300, 400 and 600 sizes with drain, filter-grade, gauge, thread and check-valve options. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR400C15MJNK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15MJNK |
|---|---|
| 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 GFR400C15MJNK
| 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 GFR400C15MJNK Is Used
Trailer and tailgate lift circuits
Feeds lift and gate cylinders on truck-mounted equipment, where the check valve helps keep the set pressure in the circuit if the supply line is disconnected or dropped.
Maintenance-shop air drops
Serves test rigs and repair benches fed from a shop compressor main, filtering the shared air to 40 um and letting benches hold their adjusted pressure independently.
Blow-off and cleaning stations
Supplies air-nozzle cleaning stations on a production line, with the regulator setting a safe working pressure and the check valve blocking backflow through the unit.
Is the Airtac GFR Filter Regulator GFR400C15MJNK the Right Unit?
Pick the K option when the downstream circuit should hold its set pressure if the upstream supply is shut off or lost, or to prevent backflow through the unit. This 400 size has a 1/2 in PT port as standard, with G (BSPP) and NPT threads orderable instead. Manual drain (as here) suits attended installations; automatic and differential-pressure drains suit unattended duty. The 40 um element is standard and the W code selects 5 um. The N code means no gauge; gauge-equipped variants are in the same series. J means no bracket is supplied.
Because flow is published as curves, not a single rated figure, 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 GFR400C15MJNK FAQ
We do not state a rated flow number because AirTAC publishes G-series flow as performance curves, not a single rating. Give us your inlet pressure and flow requirement and we will confirm the datasheet curve and sizing for this 400-size unit on request.
K means a reverse/check valve is fitted, so air will not flow back through the unit from the downstream side. Units without the K code have no check valve. The other decodes here are: 400 size, 1/2 in PT port, manual drain, no bracket, no gauge, and the standard 40 um element.
Authorized Export Seller
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 GFR400C15MJNK
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.