The AirTAC GFR300C15JC2WK AirTAC Filter Regulator PT1/2, 5 um 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 AirTAC GFR300C15JC2WK is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around a PT1/2 (1/2 in) PT-thread port, a 5 um filter element for finer filtration than the standard 40 um grade, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. An external round gauge on a psi scale is fitted so the set pressure is visible at the unit, and a reverse/check valve is included to hold downstream pressure if the upstream supply drops. No mounting bracket is supplied with this code.
This is a genuine AirTAC part from the GFR300 series. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and is offered with a choice of drain type, 40 um or 5 um filtration, gauge style and scale, PT, G or NPT thread, and bracket options. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C15JC2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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) |
On a CNC machining cell, clean regulated air feeds the fixture clamps and tool-change cylinders. The 5 um element protects the clamping valves from fine particulate, the regulator holds a steady clamp pressure, and the check valve keeps fixtures from releasing if shop supply dips mid-cycle.
On a packaging line, conveyor diverters, stop gates and pusher cylinders all run off one air drop. This filter regulator conditions that drop in a single unit, the psi gauge lets the line technician set and verify actuator pressure, and the differential-pressure drain handles condensate without daily manual draining.
At assembly stations where impact drivers, nutrunners and air cylinders share a supply, this PT1/2 filter regulator sits at the point of use. It strips water and 5 um-scale dirt before the tools, keeps working pressure where the tool manufacturer specifies, and shields the circuit from upstream pressure surges.
Start with the port step: size 300 carries a PT1/2 (1/2 in) PT-thread connection, and the GFR range steps through 1/8, 1/4, 3/8, 1/2, 3/4 and 1 in across sizes 200 to 600, so pick the size whose flow curve covers your demand with margin. On filtration, the standard element is 40 um; this unit carries the 5 um (W) element, the right choice when downstream valves or instruments need finer air. Drain choice matters: differential-pressure (as fitted here) needs no operator attention, automatic (A) drains continuously, and manual (M) drains only when opened. Gauge options are the embedded square gauge or an external round gauge, on MPa, psi or bar scales; this code has a round psi gauge. Thread is PT as standard with G (BSPP) and NPT available as order options, and a bracket can be added where this no-bracket code does not include one. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against 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 GFR series as performance curves rather than a single rated figure, so there is no one flow number we can honestly quote. Tell us your line pressure, set pressure and air demand, and we will confirm the datasheet curve figures for this size 300 unit on request before you order.
The W code in the model means the finer 5 um element is fitted instead of the standard 40 um grade, and the K code means a reverse/check valve is included to hold downstream pressure if supply drops. The drain is the differential-pressure type: it discharges collected condensate automatically when the pressure differential across the element rises, so no manual draining is needed in normal service.
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.