Airtac GFR Filter Regulator GFR300C08MNWK
The AirTAC Airtac GFR Filter Regulator GFR300C08MNWK 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR300C08MNWK
The AirTAC GFR series is a single-body filter regulator: the bowl stage removes water and particulate from compressed air and the regulator stage reduces it to the set working pressure. This 300-size unit is ordered with a PT 1/4 in port, a manual drain (open the drain below the polycarbonate bowl to discharge collected water), the W 5 um element, the K reverse (check) valve option, and no gauge. Maximum inlet pressure is 1.0 MPa (145 psi); with the manual drain, the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part and comes with a mounting bracket. Across the G series you can order sizes 200 to 600 (ports 1/8 to 1 in), manual, automatic or differential-pressure drains, 40 um or 5 um elements, gauged or gauge-less variants, and PT, G or NPT threads, plus GFC two-unit and GC three-unit sets when lubrication is needed. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR300C08MNWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08MNWK |
|---|---|
| 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.
Model Code: Airtac GFR Filter Regulator GFR300C08MNWK
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C0 | 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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-C0 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C08MNWK Is Used
Pneumatic test bench
On a leak and pressure test bench, the 5 um element conditions air feeding gauges and transducers while the regulator sets the test pressure; this code also carries the K reverse (check) valve option.
Assembly cell nutrunners
Feeding nutrunners and air screwdrivers at an assembly cell, it cleans the supply at the 5 um grade and lets the cell engineer set tool pressure to the fastening specification.
Machine air drop points
Installed at machine drop points across a production floor, it pairs water and particulate removal with pressure setting in one body, tidying the supply path to each machine.
Is the Airtac GFR Filter Regulator GFR300C08MNWK the Right Unit?
Size 300 with a 1/4 in PT port covers mid-range machine drops; size 200 suits compact circuits and 400/600 serve larger ports and higher flow demand. This code stacks three choices: the M manual drain (against the differential-pressure default and A automatic option), the W 5 um element (against the 40 um standard), and the K reverse (check) valve.
No gauge is fitted on this variant; gauge options with MPa, psi or bar scales exist in the same size. Thread is PT as standard, with G (BSPP) and NPT as catalogue options, and a bracket is included. Flow appears only as curves, so ask us to confirm the sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR Filter Regulator GFR300C08MNWK FAQ
AirTAC publishes flow for the G series as curves rather than a single rated figure, so there is no single number to state. Give us your application and we will confirm the datasheet curve data on request before you order.
No. The gauge position in the code is N, so the GFR300C08MNWK is supplied without a gauge. Gauged variants - embedded square or external round, on MPa, psi or bar scales - are available in the same size and port; ask us to quote the variant you need.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR300C08MNWK
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.