The AirTAC GR60025LJF2TK AirTAC Low-Pressure Regulator NPT1 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" 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 GR60025LJF2TK is an AirTAC GR-series air pressure regulator, and regulation is all it does: it reduces and holds a steady downstream pressure from your compressed air line, with no filter element and no bowl. This is the size 600 unit, the largest in the GR range, with 1 in NPT female ports, so it suits a main air drop or a high-consumption header rather than a point-of-use drop. The L in the code marks the low-pressure type, whose adjustment range tops out at 0.4 MPa, which is the right choice when the downstream equipment simply cannot take full line pressure. It is fitted with the embedded square pressure gauge reading in psi, and the K in the code means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply is lost.
This is a genuine AirTAC part. The GR family runs from size 200 to 600 with port sizes from 1/8 in up to 1 in, in PT (standard), G (BSPP) or NPT thread, with or without gauge, with or without bracket, and in standard or low-pressure adjustment ranges. Flow is published by AirTAC as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application before you order.
| Model | GR60025LJF2TK AirTAC Low-Pressure Regulator NPT1 |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT1" (NPT 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.
| GR600 | G-series pressure regulator, 600 body — sets the port range. |
|---|---|
| 25 | Port size PT1". This body offers 20 = PT3/4", 25 = PT1". |
| 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. |
| 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 | GR600 · PT1" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Drops line pressure to the gentle, stable level that spray guns and atomising headers on a paint or coating line need, with the psi gauge giving the operator a direct readout at the booth.
Feeds cylinder-driven sealing arms and clamp motions on a packaging line where the mechanism is rated well below full header pressure, holding a steady setpoint through each cycle.
Gives a test rig or pilot plant a controlled low-pressure air supply for leak checks and fixture clamping, with the fitted check valve holding the set pressure if the shop supply dips.
Start with the port and size step: this unit is size 600 with 1 in NPT ports, the top of the GR range, so pick it when your line flow demands the largest step; smaller GR sizes step down to 1/4 in and below. Because the code carries L, the adjustment range is the low-pressure type, up to 0.4 MPa - choose the standard GR version instead if you need to regulate above that. The square gauge fitted here reads in psi; MPa and bar scale options exist if you prefer. The K option means a reverse (check) valve is fitted; drop the K if you do not want one. Thread is NPT on this unit, with PT (the standard) and G (BSPP) available to order. The J code means no mounting bracket is supplied, though the GR is also panel-mountable. For sizing, flow is published as curves, not a single rating - send us your flow and pressure requirements and we will confirm the right size from the datasheet 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 rather than a single rated figure, so there is no one l/min or SCFM number we can honestly quote. Send us your line pressure, set pressure and expected air consumption, and we will confirm the sizing against the datasheet curves on request before you order.
K means a reverse (check) valve is fitted. If the upstream supply fails, the valve holds the pressure already downstream instead of letting it bleed back through the regulator - useful on clamping or test circuits where losing set pressure mid-job is a problem. The same unit without the K is available if you do not need that.
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.