The AirTAC GFR60020LC3TK AirTAC Filter Regulator NPT3/4 Low-Pressure 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 PT3/4" 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 GFR60020LC3TK is an AirTAC GFR-series filter regulator: a single body that removes water and particulate from compressed air and regulates downstream pressure in one unit. This size-600 configuration carries a 3/4 in NPT port, the standard 40 um filter element, and a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element rises. It is the low-pressure type, fitted with an external round gauge scaled in bar and a reverse (check) valve, and includes a mounting bracket. The aluminium alloy bowl suits this large frame size.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of drain types, a 5 um element option, gauge scale options, and G or NPT thread variants to order. Because flow is published as curves rather than a single rating, we confirm the exact flow and datasheet figures for your application on request.
| Model | GFR60020LC3TK AirTAC Filter Regulator NPT3/4 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 | Aluminium alloy |
| Pressure gauge | Fitted — round, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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 | GFR600 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
On a low-pressure clamping circuit where workpieces must be held gently and consistently, this unit filters the shop air and holds the reduced setting the fixture was set up for, with the check valve holding the clamp if supply pressure drops.
On a valve-automation skid fed from a plant air header, the 3/4 in port matches the main actuation line, the 40 um element keeps debris out of positioner pilot air, and the bar-scaled gauge lets technicians verify the setpoint at the panel.
On a test bench or lab rig running instruments and small actuators at reduced pressure, the low-pressure regulator type gives finer control in the lower range, while the differential-pressure drain keeps condensate out of sensitive equipment without manual attention.
Size 600 with a 3/4 in port is the largest GFR frame, so step up or down (200/300/400/600) according to the air demand of the circuit rather than the pipe alone. This unit is the low-pressure type, chosen where the working circuit calls for regulated pressure below the standard regulator's range; the exact adjustment window for the low-pressure type is not published, so confirm it with us before ordering. The differential-pressure drain is the default and suits steady-duty lines; an automatic (A) or manual (M) drain can be specified instead. The 40 um element is standard; specify W for the 5 um grade. The round gauge here reads in bar, with MPa and psi scales available, and the fitted reverse valve holds downstream pressure if the upstream supply is lost. NPT is the thread on this code; PT (standard) and G are order options. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote one number. Send us your line pressure, downstream demand and allowable pressure drop, and we will confirm the flow figures from the datasheet for this exact model before you order.
The L in the code marks the low-pressure regulator type, intended for circuits regulated below the standard type's range. The exact adjustment window for the low-pressure type is not published in the material we hold, so please confirm it with us. Standard GFR units adjust from 0.15 to 0.9 MPa with the differential-pressure drain fitted here; the maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
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.