The AirTAC GR20008LC2GK AirTAC Air Pressure Regulator G1/4 Low-Pressure 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 GR20008LC2GK is an AirTAC GR-series air pressure regulator: it does one job, holding downstream pressure steady, and it does nothing else - no filter, no bowl, no lubrication. This unit is the low-pressure type, so its adjustment range tops out at 0.4 MPa, which suits circuits that must never see full line pressure. The 200 size is fitted with a G1/4 (BSPP) port, a round external gauge reading in psi, and a reverse (check) valve that lets downstream air back-flow past the regulator when the supply is shut off. Maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -20 to 70 C - wider than the rest of the G family.
This is a genuine AirTAC part. The GR line spans 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, standard or low-pressure regulation, gauge scales in MPa, psi or bar, and PT, G or NPT threads. We do not quote a single rated flow figure because AirTAC publishes flow as curves, not one number - ask us and we will confirm the datasheet figures for your application on request.
| Model | GR20008LC2GK AirTAC Air Pressure Regulator G1/4 Low-Pressure |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (G (BSPP) 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, psi 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| G | G (BSPP) 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 |
Feeding pilot-air circuits on form-fill-seal or cartoning machines where actuators and pilot valves must never see full line pressure - the 0.4 MPa ceiling of the low-pressure type acts as a built-in guard for the downstream circuit.
Supplying test rigs, pneumatic fixtures and bench setups that run at modest setpoints and need a stable, repeatable pressure with a local psi gauge the operator can read at the bench.
Dropping from a plant air header to one 1/4-in machine station: the regulator holds the station pressure steady, the check valve keeps the station's stored air from backing out through the unit when the main supply is isolated.
Start with the port step: the 200 size carries a 1/4 in port, and larger sizes (300, 400, 600) step up in port and flow capacity - size the regulator against the flow your circuit needs, not just the pipe thread. Choose the low-pressure (L) type only when your setpoint stays at or below 0.4 MPa; for higher setpoints use the standard GR. The trailing G in this code specifies the G (BSPP) thread - PT is the standard option and NPT is available to order, so match the thread to your fittings. This configuration includes the round external gauge reading in psi and a reverse/check valve; gauge scale and the valve are selectable, and a mounting bracket is included (GR is also panel-mountable).
One honest note on sizing: AirTAC publishes regulator flow as curves rather than a single rated figure, so we cannot honestly quote a number here. Tell us your application and we will confirm the datasheet flow curve and sizing 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, not as a single rated figure, so we do not quote a number - any single figure would be an estimate. Send us your application details and we will confirm the datasheet flow curve and check the sizing against your required flow before you order.
The K in the code means a reverse (check) valve is fitted: when upstream supply is shut off, downstream air can flow back through the regulator instead of being trapped, which helps exhaust the circuit safely. The C2 code specifies the round external gauge reading in psi; MPa and bar scales are alternative options, and the low-pressure (L) type limits adjustment to a maximum of 0.4 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.