The AirTAC GFR300C15JNWTK AirTAC Filter Regulator NPT 1/2 in 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.
The GFR300C15JNWTK is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air through a 5 um element (the finer of the two catalogue grades), then holds downstream pressure within the standard regulation range of 0.15-0.9 MPa (20-130 psi). The 1/2 in NPT port suits larger point-of-use drops on the size-300 body. Condensate is expelled by the differential-pressure drain, a check (reverse) valve is fitted to hold downstream pressure if the supply drops, and this configuration carries no gauge and no mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge options and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application and we will read them from the datasheet on request.
| Model | GFR300C15JNWTK AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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.
| 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.
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) |
Feeds clean, regulated air to pneumatic clamps, tool changers and chip-clearing jets on a CNC machining centre, with the 5 um element protecting tight-tolerance valve spools from particulate and the check valve holding clamp pressure during a supply dip.
Supplies filtered, regulated air to the cylinders and diverters on a carton packaging and conveyor line, keeping actuator speed consistent as the header pressure wanders while the differential-pressure drain clears condensate without stopping the line.
Conditions the air feeding pneumatic valves and sample-handling actuators on a laboratory or pilot-plant skid, where the 5 um grade and stable regulated pressure suit sensitive instrumentation better than the standard 40 um element.
Size the unit by the flow your line needs: step up from 300 to 400 or 600 if demand grows, since larger sizes carry larger ports and more flow capacity - we will confirm the curve against your consumption before you order. This unit already carries the 5 um element; the 40 um standard grade is the alternative if your application tolerates coarser filtration. The differential-pressure drain is automatic in normal operation; automatic-drain and manual-drain variants exist if your duty or regulation range differs (manual-drain units regulate down to 0.05 MPa). No gauge is fitted with this code, so add a gauge with your preferred scale if you need a local reading. Thread here is NPT; PT is the standard thread and G (BSPP) is also an order option. Brackets are optional on this configuration.
Flow for this family is published as curves, not a single rated figure, so send us your application details and we will confirm sizing from the datasheet before you order.
Quick checklist
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 publishes flow for the GFR300 as curves rather than a single rated figure, so there is no one l/min or SCFM number we can honestly quote. Send us your line pressure, downstream demand and allowable pressure drop, and we will confirm the sizing from the datasheet on request before you order.
The N in the model code means no gauge is fitted, so the unit regulates without a local indication. If you need a reading at the unit, order a variant with the embedded square gauge or the optional external round gauge, in MPa, psi or bar scale; we can help you pick the right gauge code for this size.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
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.