The AirTAC GR200-08 AirTAC Low-Pressure Air Regulator, PT1/4 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 AirTAC GR200-08 is a low-pressure air pressure regulator in the GR200 size, with PT1/4 (1/4 in) ports. As a regulator, it does one job: it holds a steady downstream air pressure set by the operator, in this case anywhere up to 0.4 MPa, while tolerating up to 1.0 MPa (145 psi) at the inlet. This configuration carries the embedded square gauge reading in psi, and a reverse/check valve (code K) is fitted so downstream pressure is held if the supply side drops. No mounting bracket is included with this code, and the GR body is also panel-mountable. Because it is a pure regulator, it contains no filter, no bowl and no drain, and it performs no lubrication.
This is a genuine AirTAC part. The GR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, in standard or low-pressure types, with optional reverse/check valves, gauge choices and PT, G or NPT threads. Published flow data for GR regulators is presented as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GR200-08 AirTAC Low-Pressure Air Regulator, PT1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (PT thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure type |
| Bracket | Supplied without bracket |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | PT 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 |
On a paint-shop spray line, the GR200-08 holds the low atomising pressure the spray guns need, set anywhere up to 0.4 MPa, while the fitted check valve keeps the setting stable if the shop-air supply dips mid-shift.
On a tray-sealing or bagging machine, delicate sealing bars need gentle, repeatable clamping pressure; the low-pressure GR200-08 in PT1/4 regulates exactly that circuit, with the psi gauge letting operators set and verify the value.
On a bench that leak-tests or function-checks pneumatic components at modest pressures, the GR200-08 supplies a stable, adjustable low-pressure source up to 0.4 MPa, and the check valve prevents the piece under test back-feeding the bench supply.
Start with the port step: the GR200 size in PT1/4 suits lines built around 1/4 in pipework, and the larger 300/400/600 sizes give bigger ports where the circuit demands them; match the size to the flow your application needs. This code is the low-pressure (L) type, regulating up to 0.4 MPa - choose the standard GR type instead if your setpoint range must reach 0.9 MPa. The embedded square gauge here reads in psi; MPa and bar scales are also available, and an external round gauge is an option. The fitted reverse/check valve (K) holds downstream pressure against supply dips - omit it if you do not need that. Thread is PT as standard, with G (BSPP) and NPT as order options, and this code comes without a mounting bracket.
One honest note before you order: GR flow performance is published as curves, not as a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the datasheet and sizing against your required flow before you commit.
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 performance curves rather than a single rated figure, so we do not state a flow number for this unit. Tell us your line pressure, setpoint and the flow your application needs, and we will confirm the datasheet curves and check the sizing for you on request before you order.
The L in the code marks the low-pressure type of the GR family, whose adjustment range goes up to 0.4 MPa. It still accepts up to 1.0 MPa (145 psi) at the inlet. If your setpoint must reach the full 0.9 MPa range, order the standard GR type instead of the L version.
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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.