The AirTAC GR20008LF1TK AirTAC Low-Pressure Regulator NPT1/4 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 PT1/4" 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 GR20008LF1TK is a genuine AirTAC GR200 air pressure regulator in the 200 size with a 1/4 in NPT port. This is a regulation-only unit: it reduces and holds downstream air pressure, with no filter and no bowl. The L code marks the low-pressure type, so the regulated output can be set anywhere up to 0.4 MPa, while the maximum working (inlet) pressure is 1.0 MPa (145 psi). The square gauge is embedded as standard and reads in MPa, and the K code means a reverse (check) valve is fitted. The mounting bracket is included, and the GR body is also panel-mountable. Operating temperature is -20 to 70 C, the widest range in the G-series family.
This is a genuine AirTAC part. The GR line is offered in 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, and in standard or low-pressure types, with or without a gauge, and with PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR20008LF1TK AirTAC Low-Pressure Regulator NPT1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (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.
| GR200 | G-series pressure regulator, 200 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 06 = PT1/8", 08 = PT1/4". |
| 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 | GR200 · PT1/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Pneumatic hold-down clamps on a carton-sealing or tray-forming machine often need a gentle, stable setting well below normal line pressure. This low-pressure regulator lets the operator dial the clamp force down to 0.4 MPa or under and hold it steady, with the fitted check valve helping to hold the setting if upstream supply dips.
A test bench or laboratory fixture running sensitive pneumatic actuators or air bearings needs a controlled, low setpoint independent of the shop main. The GR20008LF1TK steps the 1/4 in bench drop down to a low, repeatable pressure, with the embedded MPa gauge giving a clear local readout at the rig.
Textile machinery uses low-pressure air for thread guides, tensioners and small cylinders where over-pressure damages yarn or product. A 1/4 in low-pressure regulator mounted at the machine, bracket-fixed or panel-mounted, gives each station its own stable setting instead of sharing an uncontrolled main.
Start with the port step: the 200 size carries a 1/4 in port, and the GR range steps up through 300, 400 and 600 as required flow grows - match the size to the line's air demand rather than upsizing blindly. This unit is the low-pressure (L) type, correct where the downstream setting must stay at or below 0.4 MPa; the standard type covers the full 0.05-0.9 MPa range if you need higher settings. The embedded square gauge reads in MPa; psi and bar scales are catalogue options if your team works in those units. Thread here is NPT (code T); PT is the standard offering and G is also available to order. The K code adds a reverse (check) valve, useful where upstream supply can drop and you want to hold downstream pressure. A bracket is included, and GR can also be panel-mounted. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 GR regulator flow as curves, not as a single rated number, so we do not quote a rated flow figure. Tell us your inlet pressure, set pressure and the air demand of your equipment, and we will confirm the sizing from the datasheet curves on request before you order.
The L code means this is the low-pressure type of the GR regulator: its adjustable output goes up to 0.4 MPa rather than the standard type's 0.05-0.9 MPa range. The K code means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply falls. If you need settings above 0.4 MPa, order the standard GR type instead.
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.