The AirTAC GFR300C15MLC1T AirTAC Filter Regulator 1/2 in NPT 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 GFR300C15MLC1T is a GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single 300-size body. This configuration is built with a 1/2 in NPT port, a 40 um standard filter element, a manual drain bowl in metal, and a fitted round pressure gauge scaled in MPa. It is the low-pressure type, intended for circuits where regulated pressure must stay in the lower band rather than the full standard range, and it ships with a mounting bracket for panel or frame fixing.
This is a genuine AirTAC part from the GFR300 size class, one of four sizes (200/300/400/600) spanning the G-series port steps from 1/8 in to 1 in. Across the family you can order automatic, manual or differential-pressure drains, a 5 um fine element (code W), square or round gauges with MPa, psi or bar scales, and G, NPT or PT threads. Rated flow for this unit is published as curves rather than a single figure, so ask us and we will confirm the datasheet numbers against your application.
| Model | GFR300C15MLC1T AirTAC Filter Regulator 1/2 in NPT |
|---|---|
| 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 low-pressure clamping or forming circuit, this filter regulator cleans the shop air and holds the working pressure the press cylinder needs, with the MPa gauge giving the operator a direct reading at the setpoint.
Looms and spinning frames run on lower-pressure air for thread tensioning and jet assist; a low-pressure type filter regulator at the machine inlet keeps water and lint-scale particulate out while holding the reduced pressure steady.
Feeding carton sealers and case erectors from a 1/2 in drop leg, this unit strips condensate and pipe scale with its 40 um element and lets the line crew dial in the actuator pressure, draining the metal bowl at the daily check.
Size and port: the 300 class here carries a 1/2 in port; step up to 400 or 600, or down to 200, as your line flow demands - we will check the published flow curves against your consumption before you order. This unit is the low-pressure type, so confirm your regulated pressure band with us first; the standard-type GFR covers the full adjustment range. Drain: you have the manual drain fitted here, which means someone bleeds the bowl on a routine; choose automatic drain if the unit is mounted out of reach, or differential-pressure drain as the default. Filter grade: 40 um is the standard element on this model; specify code W for 5 um where finer protection is needed. Gauge: the round MPa gauge is fitted; square gauges and psi or bar scales are alternatives. Thread: NPT is specified in this code, with G (BSPP) and PT available as order options. Bracket included.
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 curves, not as a single rated figure, so we do not quote a number on the page. Tell us your operating pressure and air consumption and we will confirm the flow from the datasheet curves for this exact 300-size, 1/2 in NPT unit before you order.
The M in the code specifies a manual drain: condensate collects in the metal bowl until an operator opens the drain at a routine interval. That suits attended stations on a daily check. If the unit sits out of reach or the line runs unattended, order the A (automatic) variant instead; the differential-pressure drain is the catalogue default.
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.