The AirTAC GFR30008MF3T AirTAC Filter Regulator NPT1/4 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 PT1/4" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30008MF3T is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is threaded 1/4 in NPT, carries the standard 40 um filter element, and uses a manual drain, so an operator opens the drain at the bottom of the PC bowl to bleed off collected condensate. The fitted embedded square gauge reads in bar, and a mounting bracket is included for secure panel or frame fixing.
This is a genuine AirTAC part from the G-series range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including automatic or differential-pressure drains, a 5 um element (code W), alternative gauge scales in MPa or psi, and G (BSPP) or NPT threads in place of the PT standard. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR30008MF3T AirTAC Filter Regulator NPT1/4 Manual Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeding filtered, regulated air to the cylinders and directional valves on a carton-forming and sealing line, with the manual drain opened at the start or end of a shift to clear collected condensate from the bowl.
A regulated 1/4 in drop feeding stopper and reject cylinders on a bottling conveyor, with the 40 um element keeping pipe debris and water out of the valve seats downstream.
Setting a stable supply pressure for a small pick-and-place gripper circuit on an assembly cell, with the square bar gauge letting the technician set and verify the working pressure at a glance.
Choose the size and port step against the air demand of the circuit: this unit is 300 size with a 1/4 in NPT port, and larger sizes move more air. Drain choice matters in practice: manual drain (this unit) means an operator drains the bowl by hand, while automatic and differential-pressure drains discharge condensate without attention. The standard element is 40 um; specify the W option for 5 um where finer filtration is needed. The embedded square gauge is standard and this one reads in bar; MPa or psi scales and an external round gauge are alternatives. Thread is NPT here, with PT as the catalogue standard and G (BSPP) available to order; a bracket is included. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 working pressure and air demand and we will confirm the flow figures from the datasheet for this 300-size, 1/4 in NPT unit before you order.
M is the manual drain: you open the drain at the bottom of the PC bowl by hand to discharge collected water. Choose manual where an operator is present at regular intervals; the automatic (A) and differential-pressure (blank) drain options discharge condensate without attention. Note the manual-drain version also has the wider 0.05-0.9 MPa (7-130 psi) regulation range.
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.