The AirTAC GFR300C10MJC1T AirTAC Filter Regulator NPT3/8 Manual Drain 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 GFR300C10MJC1T is a size 300 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration has a 3/8 in NPT port, a manual drain bowl, a standard 40 um filter element, and a round pressure gauge with an MPa scale. The manual drain means an operator opens the bowl drain to expel collected condensate, which suits installations visited during routine checks. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and can be ordered with automatic, manual or differential-pressure draining, a 5 um element (code W), square or round gauges with MPa, psi or bar scales, a check valve, and with or without a mounting bracket. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C10MJC1T AirTAC Filter Regulator NPT3/8 Manual Drain |
|---|---|
| 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) |
Fitted ahead of the cylinder and valve bank on a carton-sealing or case-packing machine, it dries and filters the supply and lets a technician set the working pressure for consistent jaw and pusher action.
Mounted at the drop feeding pneumatic diverters, stoppers and lifters on a sorting conveyor, it keeps the actuation pressure steady so product is diverted cleanly without hammering the mechanism.
Installed at a maintenance-shop air drop serving impact wrenches, blow guns and air ratchets, it strips water and pipe scale from the header supply and lets the user dial in tool pressure at the bench.
Start with the port and size: this unit steps up to 3/8 in NPT in the size 300 body, so match it against the air demand of the circuit it feeds - if your consumption sits near the top of a size 300, the next size up is the safer choice. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering. On draining, this unit is manual: choose it where condensate loads are light or someone is already at the machine; choose automatic draining where the unit is hard to reach. The 40 um element is the standard grade for general plant air; specify the 5 um W option where finer protection is wanted. The round MPa gauge is fitted here; psi and bar scales and the square gauge are alternatives. NPT is the thread on this unit, with G (BSPP) and PT available as order options. Note this configuration is supplied without a mounting bracket - add the bracket variant if you want the unit secured to a panel or backplate.
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. Tell us your line pressure and the air consumption of the equipment it will feed, and we will confirm the correct size and the datasheet flow curve for the GFR300 on request before you order.
The M in the code specifies a manual drain: condensate collected in the bowl is released by opening the drain when an operator chooses, rather than automatically. It suits points that are checked during normal maintenance rounds. If the unit will be mounted out of reach or sees heavy condensate, ask about the automatic-drain variant of the same GFR300 filter regulator.
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.