Airtac GFR Filter Regulator GFR300C15JNWK
The AirTAC Airtac GFR Filter Regulator GFR300C15JNWK 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 GFR300C15JNWK
GFR300C15JNWK is an AirTAC G-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. The 300 frame uses PT1/2 ports, the standard 40 um element suits general plant air, and the differential-pressure drain passes condensate without manual attention. The J suffix deletes the mounting bracket and the N suffix deletes the gauge, while the K suffix adds a built-in reverse (check) valve. The standard regulator adjusts 0.15-0.9 MPa (20-130 psi) on this drain type.
This is a genuine AirTAC part for compressed air only, with a maximum working pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). The 300-size bowl is polycarbonate (PC). AirTAC offers the same function across the 200/300/400/600 frames with 1/8 to 1 in ports, a choice of drains, a 5 um (W) element, square or round gauges, and an optional check valve. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application on request.
Airtac GFR Filter Regulator GFR300C15JNWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15JNWK |
|---|---|
| Series | GFR300 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 GFR300C15JNWK
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 08 = PT1/4", 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 | GFR300 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C15JNWK Is Used
Solenoid-valve manifold feed
Mounted at the inlet of a 1/2 in supply serving a solenoid-valve manifold on an assembly line: the 40 um element keeps pipe rust and water out of the valves while the regulator sets the manifold pressure.
Pneumatic bench press
A pneumatic bench press needs a steady working pressure at the cylinder: this unit filters the shop air and regulates it, and the built-in reverse valve meets the one-way-flow requirement of the branch circuit.
Conveyor gate and stopper air
Air-prep point for the diverter gates and stoppers along a packaging conveyor; the differential-pressure drain passes condensate out on continuously flowing lines without a daily drain routine.
Is the Airtac GFR Filter Regulator GFR300C15JNWK the Right Unit?
Key choices: 300 is the mid-size G frame and PT1/2 is its port here - step up to 400 or 600 if the line needs a bigger bore. The differential-pressure drain keeps the adjustment range at 0.15-0.9 MPa (20-130 psi); if you must regulate down to 0.05 MPa (7 psi), take the manual-drain (M) version, whose range is 0.05-0.9 MPa (7-130 psi). Element grade is 40 um standard, 5 um with W. Thread is PT as standard; G (BSPP) and NPT are catalogue options. J removes the bracket and N removes the gauge, so plan separate mounting and readout. Flow is published as curves, not a single rating - ask us to confirm sizing against your flow demand 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 GFR300C15JNWK FAQ
AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote one number. Send us your application details and we will confirm the flow and the full datasheet figures for GFR300C15JNWK on request before you order.
On this differential-pressure-drain version the regulator adjusts 0.15-0.9 MPa (20-130 psi). If you need to regulate down to 0.05 MPa (7 psi), choose a manual-drain (M) version of the same 300 size, which carries the 0.05-0.9 MPa (7-130 psi) range.
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Request a Quote for Airtac GFR Filter Regulator GFR300C15JNWK
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.