Airtac GFR Filter Regulator GFR300C15NWK
The AirTAC Airtac GFR Filter Regulator GFR300C15NWK 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 GFR300C15NWK
The AirTAC GFR series combines a filter and a pressure regulator in one body: air is cleaned and condensed water drained at the filter stage, then reduced to your working pressure downstream. This GFR300C15NWK is the 300 size with 1/2 in PT ports, the finer 5 um filter element, a differential-pressure drain and a built-in reverse (check) valve that helps hold downstream pressure if the upstream supply is interrupted. No pressure gauge is fitted in this configuration.
It is a genuine AirTAC part for compressed air, rated to 1.0 MPa (145 psi) maximum inlet with a regulator setting range of 0.15-0.9 MPa (20-130 psi), operating at -5 to 70 C (non-freezing). The 300 size carries a PC (polycarbonate) bowl and a mounting bracket; PT is the standard thread, with G (BSPP) and NPT versions, other sizes (200/400/600) and alternative drains available as catalogue options. Flow for the G series is published as curves rather than a single rating - ask us and we will confirm the datasheet figures for your application.
Airtac GFR Filter Regulator GFR300C15NWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15NWK |
|---|---|
| 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 GFR300C15NWK
| 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.
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-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C15NWK Is Used
Bottling line gripper supply
A 1/2 in regulated feed for pick-and-place grippers and clamp cylinders on a bottling conveyor; the 5 um element protects the sealing valves and the check valve holds gripper position through brief pressure dips.
Water treatment valve actuation
Point-of-use regulation for quarter-turn butterfly and knife-gate valve actuators on a filtration skid, keeping actuator pressure stable regardless of header swings.
Press-shop clamp circuits
Filtered, regulated air for pneumatic clamp cylinders at a stamping press, where the built-in check valve keeps clamps engaged if the main supply drops.
Is the Airtac GFR Filter Regulator GFR300C15NWK the Right Unit?
Work from the port and the flow curve: this is the 300 body with 1/2 in PT ports, so it suits circuits already plumbed at 1/2 in - step to the 400 or 600 bodies where the curve demands more. Drain choice matters day to day: the differential-pressure drain here bleeds the bowl as the element loads, while the A (automatic) or M (manual) codes suit unattended or supervised cells. The W grade gives the finer 5 um filtration; the standard grade is 40 um. A gauge is not fitted - round or square external gauges with MPa, psi or bar scales can be specified if you want a visible setting. PT is standard; G (BSPP) and NPT are options. Because flow is published as curves, not a single rating, send us your flow and pressure requirements and we will confirm sizing from the datasheet before you order.
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 GFR300C15NWK FAQ
AirTAC publishes G-series flow as characteristic curves rather than one rated figure, so we do not quote a single number here. Send us your required flow and working pressure and we will confirm the sizing from the datasheet before you order.
The NWK configuration is simply supplied without a gauge. If you want local indication, round or square external gauges with MPa, psi or bar scales can be specified on the same body - tell us which scale you read and we will confirm the matching variant and its datasheet.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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 GFR300C15NWK
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.