The AirTAC GR20008LC1TK 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 GR20008LC1TK is an AirTAC GR200 air pressure regulator in the 200 size with 1/4 in NPT ports. This is the low-pressure type (code L), so it regulates downstream pressure up to 0.4 MPa, making it the right choice for circuits that must never see full-line pressure. It carries a maximum inlet pressure of 1.0 MPa (145 psi) and operates from -20 to 70 C, the widest temperature window in the G family. This configuration is fitted with a round external pressure gauge scaled in MPa (code C1) and a reverse/check valve (code K) that holds downstream pressure when the upstream supply is lost. A mounting bracket is included, and the GR is also panel-mountable.
This is a genuine AirTAC part. The GR series spans the 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, in standard and low-pressure types, with gauge and scale options, NPT or G thread variants, and an optional reverse/check valve. Flow for this regulator is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application before ordering.
| Model | GR20008LC1TK 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 — round, 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). |
| C | Gauge shape: Round. 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 |
Set a gentle, stable supply pressure for paint spray guns and air brushes on a finishing line, where full shop pressure would overload the coating equipment.
Regulate the hold-down air to clamps and pushers on a cartoning or wrapping line, with the check valve keeping the clamp engaged if the main air drops.
Feed a controlled pilot-pressure signal to actuated process valves on a plant skid, where the actuator manufacturer caps the allowable pilot pressure.
Start with the port step: the 200 size takes 1/4 in ports here, and larger sizes (300/400/600) move up through 3/8, 1/2, 3/4 and 1 in as your circuit's flow demand grows. Because this is the low-pressure type, confirm your setpoint falls within its up-to-0.4 MPa regulation window rather than the standard type's wider range. Choose the gauge scale you want to read - MPa, psi or bar - and decide between the embedded square gauge and the external round gauge fitted here. Thread is a decodable choice: PT is the standard, while G (BSPP) and NPT (as on this unit) are catalogue options to order. The reverse/check valve (K) is worth specifying whenever downstream pressure must be held on supply loss, and a bracket is included if you want wall or panel mounting. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing against the datasheet 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 there is no one l/min or SCFM number we can honestly quote. Tell us your line pressure, setpoint and the equipment it supplies, and we will confirm the sizing from the datasheet on request before you order.
The L code makes this the low-pressure type, regulating downstream pressure up to 0.4 MPa instead of the standard type's wider range - correct for circuits that must never see full-line pressure. The K code adds a reverse/check valve, which holds downstream pressure if the upstream supply is interrupted. The C1 code fits an external round gauge scaled in MPa.
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.