The AirTAC GR20008JC2K AirTAC Air Pressure Regulator PT1/4 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 GR20008JC2K is an AirTAC GR-series air pressure regulator for compressed air. It does one job: it holds a stable, adjustable downstream pressure from an upstream supply that may vary. This unit is the 200 size with PT1/4 (1/4 in) ports in standard PT thread, and it regulates across 0.05-0.9 MPa (7-130 psi). It is fitted with an external round gauge scaled in psi, so the set pressure can be read directly at the unit, and a reverse (check) valve that maintains the downstream setting when upstream pressure is lost.
This is a genuine AirTAC part. The GR family is available in 200, 300, 400 and 600 sizes with a choice of PT, G (BSPP) or NPT threads, gauge styles and scales, low-pressure variants and bracket options, so a matching regulator can be specified for the whole line. GR units operate from -20 to 70 C, wider than the rest of the G series. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GR20008JC2K AirTAC Air Pressure Regulator PT1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (PT 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, 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". |
| (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. |
| 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 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
A regulator sits between the shop-air drop and the clamping cylinders on a stamping or welding press, holding the clamping force at a set pressure so every cycle grips the part the same way. The check valve keeps the clamp setting if the main supply dips mid-cycle.
On a cartoning or case-packing machine, individual actuator groups - sealing bars, pushers, hold-downs - each need their own pressure setting from one main supply. A 1/4 in regulator at each group lets a technician dial in and read the setting locally in psi.
Pneumatic grippers on a pick-and-place robot need a gentle, repeatable pressure well below the main line level. A compact 200-size regulator at the gripper manifold sets that pressure, and the check valve holds the grip pressure against a momentary supply drop.
Start with the size and port: 200 is the smallest GR frame, and stepping up through 300, 400 and 600 increases both the port and the flow path, so match the frame to the air demand of the circuit rather than the pipe alone. Set the adjustment range against your working pressure - this standard type covers 0.05-0.9 MPa (7-130 psi), while low-pressure (L) variants exist for circuits up to 0.4 MPa. Choose the gauge to suit the operator: this unit carries an external round gauge in psi; embedded square gauges and MPa or bar scales are the other catalogue options. The fitted reverse (check) valve is worth keeping if the downstream setting must survive an upstream pressure loss. Thread is PT as standard, with G (BSPP) and NPT as orderable options, and the bracket can be omitted (J) where panel mounting is used - GR is also panel-mountable. Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm the right size 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 GR flow as curves, not as a single rated number, so there is no one flow figure we can honestly quote for this 1/4 in regulator. Send us your required flow and working pressures and we will confirm the sizing against the datasheet on request before you order.
K means a reverse (check) valve is fitted. If upstream pressure is lost or deliberately vented, the valve holds the regulated downstream pressure and its setting instead of letting it bleed back through the regulator - useful for clamps, grippers and any circuit that must hold position on a supply drop. Units without K are the standard version.
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.