The AirTAC GR60020LF1TK AirTAC Low-Pressure Regulator NPT3/4 is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.4 MPa (7 - 58 psi) with PT3/4" ports, and ships with a pressure gauge. A regulator does not filter the air — put a GF filter upstream, or use a GFR filter regulator, when water and particulate must also be removed.
The GR60020LF1TK is an AirTAC GR-series air pressure regulator: its single job is to hold a steady, adjustable downstream air pressure from a variable compressed-air supply. This is the size-600 body - the largest in the GR line - with a 3/4 inch NPT port. It is the low-pressure type (code L), so its adjustment range tops out at 0.4 MPa, and it is set up for applications that need a gentler, closely controlled supply rather than full line pressure. A square pressure gauge (MPa scale) is fitted so the setpoint can be read directly at the unit, and a reverse (check) valve is built in so downstream pressure is held if the upstream supply drops.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 inch to 1 inch, standard or low-pressure regulation, square or round gauges in MPa, psi or bar scales, PT, G or NPT threads, and an optional reverse valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C, the widest in the G series. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application.
| Model | GR60020LF1TK AirTAC Low-Pressure Regulator NPT3/4 |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT3/4" (NPT thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure type |
| Bracket | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
| Mounting | Panel mounting; optional fixing bracket |
Specifications follow the official AirTAC G-series air-preparation data. Note the GR temperature range is -20 to +70 °C, wider than the other G-series units. A regulator has no bowl and no filter element, so there is no filtering grade. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GR600 | G-series pressure regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| L | Low-pressure type — 0.05 - 0.4 MPa (7 - 58 psi). Blank is standard, L is the low-pressure type. |
| (blank) | Fixing bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| 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, type, bracket, gauge, gauge shape, scale, thread, reflux — a blank position takes the default. Example: GR300-08LNK is a 300 body, PT1/4", low-pressure type, no gauge, with 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 rather than from a single rated figure.
| This model | GR600 · PT3/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
On a packaging or assembly machine where clamps and hold-downs must close gently and consistently, the GR60020LF1TK regulates a 3/4 inch branch down to a low, stable setpoint, with the check valve holding clamp pressure if the main supply dips.
A paint or coating booth needs supply air held at a modest, repeatable pressure so atomising and conveying behave the same on every shift. The low-pressure adjustment range of this size-600 regulator suits that duty at the header, with the fitted gauge giving operators a local setpoint readout.
In a plant where a 3/4 inch drop feeds several machines, this GR60020LF1TK sits at the take-off to give that branch its own controlled pressure independent of the main header, while the reverse valve stops the branch back-feeding or dumping on a supply loss.
For a GR regulator, the real decisions are size and port, regulation type, gauge, thread and the reverse valve. Size 600 with a 3/4 inch NPT port is the high-capacity step of the range - step up from 400 when the line volume demands the larger port, and match the port to your piping rather than throttling down a smaller unit. The L code makes this the low-pressure type, adjustable up to 0.4 MPa: choose it when your process runs well below standard regulator range; if you need settings toward 0.9 MPa, the standard GR type is the correct pick. The fitted square gauge reads in MPa; psi and bar scales and an external round gauge are orderable alternatives. NPT is specified here; PT is the catalogue standard and G (BSPP) is also available to order. The K code adds a reverse/check valve - useful where a sudden upstream pressure loss must not dump the downstream circuit. A mounting bracket is included, and GR is also panel-mountable.
One honest note on sizing: AirTAC publishes regulator flow as curves, not as a single rated number, so we do not quote a flow figure here. Tell us your line pressure, set pressure and air demand, and we will confirm against the datasheet that the GR60020LF1TK is correctly sized before you order.
Quick checklist
The reflux valve lets air flow back through the regulator, which is useful when downstream volume must vent quickly. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes regulator flow as curves rather than a single rated figure, so we do not quote a flow number for this unit. Send us your inlet pressure, target set pressure and air consumption, and we will confirm the sizing against the datasheet on request before you order.
The L code makes this the low-pressure GR type: its adjustment range tops out at 0.4 MPa instead of the standard type's wider range, which suits processes running at gentle setpoints. This configuration also carries a square pressure gauge on the MPa scale and a built-in reverse (check) valve (code K). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C.
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.