The AirTAC GR200-08 AirTAC Air Pressure Regulator, NPT1/4 is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.9 MPa (7 - 130 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 genuine AirTAC air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply. This size 200 unit is specified with 1/4 in NPT ports, the standard regulator type with an adjustment range of 0.05-0.9 MPa (7-130 psi), a round pressure gauge on the MPa scale fitted, and a reverse/check valve fitted so downstream pressure is held if the upstream supply is lost. No mounting bracket is included on this configuration; the GR body is also panel-mountable. 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 series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, gauge and scale options, an optional low-pressure type, and PT, G or NPT threads to order. Flow is published by AirTAC as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GR200-08 AirTAC Air Pressure Regulator, NPT1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (NPT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard 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 — 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". |
| (blank) | Standard type — 0.05 - 0.9 MPa (7 - 130 psi). Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (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 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Set a fixed, stable clamping pressure for the fixture cylinders on a machining centre, with the check valve holding the clamp if shop air dips. The MPa gauge lets the setter read the setting directly.
Feed the seal and bag-mover cylinders on a packaging line from a regulated branch, keeping actuator force consistent as the main header pressure wanders through the shift.
Regulate the air to stoppers, gates and pushers along a conveyor line so indexing forces stay gentle and repeatable, with the round gauge giving operators a visible line pressure reference.
Size your GR by the port step: 200 at 1/4 in NPT suits compact branch lines and individual machine drops; step up to 300, 400 or 600 where the line carries more flow. Choose the gauge scale you want to read (MPa, psi or bar) and decide whether the reverse/check valve is needed to hold downstream pressure. Thread is a real choice: PT is the catalogue standard, with G (BSPP) and NPT as order options - this unit is already NPT. A bracket is optional; the GR is also panel-mountable.
One honest note on sizing: AirTAC publishes regulator flow as curves, not as a single rated number, so we cannot quote you a rated flow figure here. Ask us to confirm the flow curve and datasheet 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 figure, so there is no one rated-flow number we can honestly quote. Send us your application details and we will confirm the flow curve and datasheet figures for the GR200-08 on request before you order.
K means a reverse/check valve is fitted to this GR200-08. It holds the regulated downstream pressure if the upstream supply is lost or dropped - useful on clamps, grippers or any circuit that must not release on an air failure. GR units without the K code come without the check valve.
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.