The AirTAC GFR300C15MLJF2K AirTAC Filter Regulator PT1/2 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.
GFR300C15MLJF2K is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is sized for PT1/2 (1/2 in) ports, uses the standard 40 um filter element, and drains by hand through its manual drain (code M), so condensate is let off only when you choose. The regulator is the low-pressure type, a metal bowl collects the separated water, and an embedded square gauge reading in psi is fitted so the setting is visible at the unit. A reverse (check) valve is also fitted, and no mounting bracket is included with this code. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options across drain types (manual, automatic or differential-pressure), a 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads in place of the PT standard. Air flow for this series is published as curves rather than a single rated figure, so ask us to confirm sizing or any datasheet figure against your application before you order.
| Model | GFR300C15MLJF2K AirTAC Filter Regulator PT1/2 |
|---|---|
| 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) |
Point-of-use conditioning for actuator valves on a bottling line: the 40 um element strips water and scale ahead of the regulator, which sets a steady reduced-pressure supply to the cylinder bank, with the psi gauge in view at the machine during changeovers.
Feeding a small bench press or clamping fixture: filtration and regulation in one body saves panel space, the manual drain lets the operator bleed off condensate at shift start, and the fitted check valve blocks reverse flow in the supply leg.
Running diverters, pushers and stopper cylinders on a packaging conveyor: the low-pressure regulator type is intended for circuits set at reduced pressures, and the metal bowl with manual drain keeps day-to-day servicing simple at the machine.
The decodable choices on this unit: size 300 with a PT1/2 port - step up or down a size when your line porting or air demand calls for it; manual drain (M) versus automatic (A) or differential-pressure (blank) drains - manual suits attended machines and light condensate loads, automatic suits unattended duty; the standard 40 um element versus the finer 5 um W grade when downstream equipment needs cleaner air; and the low-pressure regulator type, whose exact adjustment range is not published in our data, so confirm it with us if your set point is critical. The fitted square gauge reads in psi; an external round gauge and MPa or bar scales are options. Thread is PT as standard - order G (BSPP) or NPT explicitly if you need them - and this J-coded unit is supplied without a bracket, which can be added as an option. Because flow is published as curves, not a single rating, send us your air demand and we will confirm the 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 this series as curves rather than a single rated figure, so we do not quote a number here. Send us your air demand and operating pressure and we will confirm the sizing from the datasheet before you order.
Code M means condensate is released by hand, which suits attended machines and light condensate loads; automatic (A) and differential-pressure (blank) drains are catalogue options on the GFR family if you would rather not rely on an operator. This unit also carries the standard 40 um element - specify code W for the 5 um grade.
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.