Airtac GFR Filter Regulator GFR400C15MJF1K
The AirTAC GFR Filter Regulator GFR400C15MJF1K 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 GFR400C15MJF1K
GFR400C15MJF1K is an AirTAC GFR400 filter regulator: filtration and pressure regulation in one body, ordered with a reverse (check) valve fitted so the downstream set pressure is held if the upstream supply dips. This configuration also carries a manual drain, the standard 40 um filter element, an embedded square gauge with MPa scale, and no mounting bracket. The port is PT1/2 (1/2 in PT thread, the standard for this code) and the bowl is polycarbonate (PC) at size 400. Regulator setting range with the manual drain is 0.05-0.9 MPa (7-130 psi); maximum working pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is made in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, G (BSPP) and NPT thread options, differential-pressure, automatic or manual drains, and 40 um or 5 um elements. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing on request.
Airtac GFR Filter Regulator GFR400C15MJF1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15MJF1K |
|---|---|
| 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 GFR400C15MJF1K
| 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 GFR400C15MJF1K Is Used
Pneumatic press holding circuit
Feeds the counterbalance and holding circuit of a pneumatic press, where the check valve keeps the set pressure on the ram side if the main supply sags mid-stroke.
Automotive assembly air tools
Conditions the drops feeding impact wrenches and torque tools at an assembly station, giving each tool bay its own filtered, regulated supply.
Textile loom air supply
Supplies looms and doffing equipment on a weaving floor, where the check valve helps maintain set pressure against fluctuating mill air demand.
Is the Airtac GFR Filter Regulator GFR400C15MJF1K the Right Unit?
Pick the K suffix when the circuit must ride through upstream pressure dips: the fitted check valve holds the regulated downstream pressure while blocking backflow. Size 400 with a 1/2 in PT port covers medium-to-high demand; match the published flow curve to your consumption before fixing the size. The manual drain gives the 0.05-0.9 MPa (7-130 psi) setting range, wider than the 0.15-0.9 MPa (20-130 psi) of automatic or differential-drain versions. The 40 um element is the standard grade; add W for 5 um if the application needs finer filtration. Square or round gauges in MPa, psi or bar scales, G/NPT threads and a bracket are all orderable 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 (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 GFR400C15MJF1K FAQ
We do not quote a rated flow because AirTAC publishes G-series flow as curves, not as a single figure. Share your duty point (pressure and demand) and we will confirm the sizing from the datasheet on request.
K means a reverse (check) valve is fitted, so the regulator holds its downstream set pressure against upstream dips and blocks backflow. Without the K the same unit is GFR400C15MJF1; every other decoding position - drain, filter grade, gauge, bracket - is identical.
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Genuine AirTAC parts produced by AirTAC factory.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR400C15MJF1K
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.