The AirTAC GR30015JF3T AirTAC Air Pressure Regulator NPT1/2 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 PT1/2" 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 GR30015JF3T is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply. This GR300 configuration is the 300 size with a 1/2 in NPT port, the standard (not low-pressure) regulator type, an adjustment range of 0.05-0.9 MPa (7-130 psi), and a maximum inlet pressure of 1.0 MPa (145 psi). The embedded square pressure gauge is fitted with a bar scale, and the unit ships without a mounting bracket, though the GR body is also panel-mountable. Operating temperature is -20 to 70 C, wider than the rest of the G family.
This is a genuine AirTAC part. The GR line spans the 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, and options including G or NPT threads, low-pressure type, a reverse/check valve, no-gauge or alternative gauge scales, and bracket choice. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GR30015JF3T AirTAC Air Pressure Regulator NPT1/2 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/2" (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 — square, bar scale |
| Reflux valve | Not fitted |
| 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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (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). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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 | GR300 · PT1/2" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set and hold the downstream pressure feeding an air-over-oil or cylinder-driven bench press, so each forming or staking stroke runs at the same setpoint shift after shift.
Regulate the air feeding sealing jaws, grippers and diverters on a packaging line, where a steady setpoint keeps cycle timing and sealing force consistent.
Feed the workholding clamps and tool-change cylinders on a machining centre from a fixed, adjustable setpoint, isolated from swings in the shop-air header pressure.
Start with the port step: the GR300 carries 1/2 in ports, and the right size depends on the flow your line needs - step up to GR400 or GR600 for larger demand, down to GR200 for smaller. This unit is the standard type with a 0.05-0.9 MPa (7-130 psi) adjustment range; if your setpoint must go below 0.15 MPa with a drain-equipped filter downstream, check the low-pressure (L) variant of the same size. The gauge here is the embedded square type with a bar scale; MPa and psi scales are available if you prefer. Thread is NPT on this code - PT is the AirTAC standard and G (BSPP) is also an order option - and the J suffix means no bracket, so plan for panel mounting or piping support if you need one.
One honest note on sizing: AirTAC publishes regulator flow as curves, not a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the correct size against the datasheet before you order.
Quick checklist
Without a reflux valve, air cannot flow back through the regulator — order the K option if reverse flow is required. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes 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 expected air demand, and we will confirm the sizing against the datasheet on request before you order.
F is the square embedded pressure gauge, 3 sets its scale to bar (MPa and psi scales are order options), and T sets the thread to NPT at the 1/2 in port. PT is the AirTAC standard thread and G (BSPP) is also available; these are specification choices made at ordering, not delivery options.
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.