The AirTAC AirTAC GFR400C15MLC2WGK Filter Regulator G1/2, 5 um 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 GFR400C15MLC2WGK is an AirTAC GFR400 filter regulator: one body that strips water and particulate from compressed air and regulates downstream pressure. This 400-size unit is threaded G1/2 (BSPP), carries the finer 5 um filter element, drains by hand through its manual drain, and is built as the low-pressure regulator type. A round psi gauge is fitted, a reverse/check valve is built in, the mounting bracket is included, and the polycarbonate (PC) bowl suits this size. 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 inch, and options across drain type, 40 um or 5 um filtration, gauge style and scale, G or NPT thread, and combined filter-regulator, two-unit or full F.R.L. configurations. Flow for this family is published as curves rather than a single rating, so ask us and we will confirm the figures for your application from the datasheet on request.
| Model | AirTAC GFR400C15MLC2WGK Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR400 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 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 | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
On a paint or powder-coating line, the 5 um element removes water and fine particulate before atomizing air reaches the guns, while the low-pressure regulator holds the gentler pressure these applications call for.
Workholding clamps on a machining centre need steady, clean air at reduced pressure; this unit filters the supply, regulates it at low-pressure settings, and the fitted reverse/check valve adds a layer of supply-side protection.
Carton formers and wrapping machines run many small actuators off one drop; a 1/2 inch filter regulator at the machine inlet keeps contaminants out of valves and holds the low working pressure the cycle needs.
Size the unit against the air demand of the line: this 400-size version takes a 1/2 inch port, and moving up or down a size changes both port and flow capacity. Drain type is a real choice - manual (as here, you purge the bowl by hand), automatic, or differential-pressure. Filter grade is 40 um standard or 5 um (code W) for finer protection; this unit carries the 5 um element. Gauge style is embedded square as standard with an external round gauge optional, in MPa, psi or bar scale - this one is a fitted round psi gauge. Thread is PT as standard with G and NPT as order options, and the bracket is included. Flow is published as curves, not a single rating, so let us confirm sizing against your application 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 family as curves, not as a single rated figure, so we do not quote a number on the page. Tell us your application and air demand, and we will confirm the flow figures for this exact model from the datasheet on request.
The M in the code means manual drain: collected water is purged by hand, which suits lines with scheduled maintenance. The same GFR family is also available with automatic drain (code A) or differential-pressure drain (blank), so let us know if you would prefer one of those quoted instead.
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.