The AirTAC GFR30015C3WT AirTAC Filter Regulator, NPT1/2, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" 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 GFR30015C3WT is a 300-size filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one body. This configuration carries a 1/2 in NPT port, a 5 um filter element (a step finer than the 40 um standard), a differential-pressure drain that bleeds condensate automatically as flow passes through, and a round pressure gauge reading in bar. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), the polycarbonate bowl suits sizes 200-400, a mounting bracket is included, and the unit operates at up to 1.0 MPa (145 psi) inlet in a -5 to 70 C (non-freezing) environment.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options in PT (standard), G and NPT, manual, automatic or differential-pressure drains, 40 um or 5 um elements, square or round gauges in MPa, psi or bar scales, and low-pressure or reverse-valve variants. Flow figures are published as curves rather than a single rating, so we confirm the datasheet and sizing against your application on request.
| Model | GFR30015C3WT AirTAC Filter Regulator, NPT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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 — round, bar 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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Conditioning the shop-air feed to a CNC machining centre's pneumatic tool-clamp and chip-clearing circuits: the 5 um element protects the clamp cylinder and solenoid valves from particulate and water, while the regulator holds a steady setting for consistent clamping force.
Feeding the stopper, pusher and divert cylinders on a food or beverage packaging conveyor line, where the differential-pressure drain sheds condensate during production and the bar gauge lets line staff verify set pressure at a glance.
Point-of-use preparation ahead of air-driven diaphragm pumps and spray equipment in an industrial paint booth, where the finer 5 um grade limits water and particle carry-through and stable regulation keeps atomising pressure consistent through a shift.
Choose the size and port step against the air demand of the circuit: 300 size with a 1/2 in port sits mid-range in the GFR line between the 200 and 400 frames. Because flow is published as curves and not a single rated figure, ask us to confirm sizing against your application before ordering. Decide the drain: this unit uses the differential-pressure drain (default), while automatic (A) and manual (M) versions are available. The 5 um element here is the optional finer grade; the 40 um standard suits general shop air. Gauge options are the embedded square type or an external round gauge, in MPa, psi or bar scales - this unit carries a round bar gauge. Thread is NPT here; PT is the standard and G is also an order option. A mounting bracket is included; the J suffix removes it.
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 GFR300 flow as performance curves rather than a single rated figure, so there is no one rated-flow number we can honestly quote. Tell us your operating pressure and air demand and we will confirm the flow from the datasheet and check the sizing against your application before you order.
The W suffix in the code selects the optional 5 um element, one step finer than the 40 um standard, for circuits that need cleaner air. Drain is the differential-pressure type (the default): condensate collected in the polycarbonate bowl is bled off automatically as air flows through, with no manual draining needed in normal operation.
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.