Airtac GFR Filter Regulator GFR300C08JC1K
The AirTAC GFR Filter Regulator GFR300C08JC1K 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 GFR300C08JC1K
The AirTAC GFR series combines filtration and pressure regulation in one body: air passes through a drain bowl that removes water and 40 um particulate, then through the regulator, which adjusts downstream pressure across 0.15-0.9 MPa (20-130 psi) with the differential-pressure drain fitted here. This 300-size unit is ported PT1/4, carries a round external pressure gauge scaled in MPa, and includes a built-in reverse (check) valve that holds downstream pressure if the supply drops. Maximum inlet pressure is 1.0 MPa (145 psi), the 300-size bowl is polycarbonate, and service is -5 to 70 C. The J suffix means no mounting bracket is included.
This is a genuine AirTAC part. The G series spans 200, 300, 400 and 600 sizes with ports from PT1/8 to PT1, G (BSPP) or NPT threads, 40 um or 5 um (W) filtration, differential-pressure, automatic or manual drains, embedded square or external round gauges in MPa, psi or bar scales, and bracket options. Rated flow for GFR units is published as curves rather than one figure; ask us to confirm sizing and datasheet figures for your application.
Airtac GFR Filter Regulator GFR300C08JC1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08JC1K |
|---|---|
| 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 GFR300C08JC1K
| 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 GFR300C08JC1K Is Used
Film-wrapping machine cylinders
On a food-packaging stretch wrapper, this unit filters condensate and particulate from the shop air and holds a set pressure to the sealing and tension cylinders, while the check valve keeps the clamp-side pressure intact during brief supply dips.
Pneumatic clamps on weld fixtures
In an automotive spot-weld cell, filtered and regulated air feeds the toggle clamps on the fixture; the 40 um element protects the clamp valve spools from welding-line dirt and rust flakes.
Case-packing conveyor diverters
On a beverage case conveyor, this filter regulator supplies the air cylinders that push cases between lanes, keeping the diverters free of water carryover that would otherwise gum the directional valves.
Is the Airtac GFR Filter Regulator GFR300C08JC1K the Right Unit?
Step up to the 300 size when your demand sits between the compact 200 and the higher-flow 400; this configuration is ported PT1/4, and the same family offers 3/8" and 1/2" ports if you need a larger bore. The differential-pressure drain opens only when the pressure drop across the element builds; for heavy condensate choose the automatic drain (A), or manual (M) for controlled draining. The 40 um element is standard, with 5 um (W) available for finer protection. The round gauge here reads in MPa; psi or bar scales can be ordered, and an embedded square gauge is the built-in alternative. Thread is PT as standard, with G (BSPP) and NPT as catalogue options; the J code omits the optional bracket, and the K code adds the reverse/check valve. Because flow is published as curves rather than a single rated figure, send us your demand and we will confirm sizing 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 GFR300C08JC1K FAQ
AirTAC publishes flow for G-series units as performance curves, not as a single rated figure, so quoting one number would be guesswork. Tell us your line pressure and air demand and we will confirm the flow from the datasheet and check the sizing against your application before you order.
K specifies a reverse (check) valve fitted inside the unit. If upstream supply fails or is shut off, the check valve prevents downstream air from escaping back through the regulator, holding the set pressure on the machine side. The same model without the K has no check function.
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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 GFR300C08JC1K
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.