The AirTAC GR60025LJC1TK AirTAC Air Regulator NPT1 Low-Pressure 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 GR60025LJC1TK is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply, and it carries no filter, bowl or lubricator. This is the 600 size with 1 in NPT ports, built as the low-pressure type (code L) so its adjustment range tops out at 0.4 MPa - the right choice where the actuator or process simply cannot tolerate full line pressure. It comes with a round pressure gauge scaled in MPa, a reverse/check valve fitted so downstream pressure is held if the supply drops, and no mounting bracket, so it can be panel-mounted or otherwise supported at installation.
This is a genuine AirTAC part from the GR600 range, the largest of the four GR sizes, and the family is available in other ports, thread options (PT standard, G and NPT to order), gauge scales and bracket configurations. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -20 to 70 C, wider than the rest of the G series. We do not quote a single rated flow figure - flow is published as curves - so ask us to confirm sizing against your application before ordering.
| Model | GR60025LJC1TK AirTAC Air Regulator NPT1 Low-Pressure |
|---|---|
| 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 — 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.
| 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). |
| 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 | GR600 · PT1" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Bagging and carton-sealing machines often run gripper and clamp cylinders at reduced pressure to avoid crushing product. This low-pressure GR600 regulator holds a gentle, stable setting up to 0.4 MPa on a 1 in NPT supply header, and the check valve keeps the setting if the plant air dips.
Web-handling and thread-guiding stations on textile looms and converting equipment need steady, moderate-pressure air jets. Mounted panel-style at the machine, this 1 in NPT regulator with MPa gauge gives operators a visible, repeatable setting for the whole header.
Fixture clamps on a CNC or drilling station work best at a fixed, moderate clamping pressure. This GR600 low-pressure regulator, fed from the shop's 1 in NPT drop, holds that clamping pressure steady across the shift, with the fitted check valve preventing release on a supply loss.
Start with the port step: the 600 size takes a 1 in connection, so match it to your line size and the flow your circuit needs - and because flow is published as curves rather than a single rating, send us your demand and we will confirm the GR600 is the right step before you order. Then check the regulator type: this unit is the low-pressure type, adjusting up to 0.4 MPa; if your circuit needs up to 0.9 MPa, the standard GR type is the correct pick instead. Other decodable choices on this family are the gauge (this one is a round gauge with MPa scale; psi and bar scales and the embedded square gauge are options), the thread (PT is the AirTAC standard, G and NPT are order options - this unit is NPT), the mounting bracket (this configuration has none, and GR is also panel-mountable), and the reverse/check valve, which is fitted here.
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 regulator performance as flow curves, not as a single rated number, so we do not state a figure here. Tell us your line size and air demand and we will confirm from the datasheet curves whether this 1 in NPT, 600-size regulator is correctly sized for your application.
The L in the code marks the low-pressure type, whose adjustment range tops out at 0.4 MPa - ideal for circuits that must never see full line pressure. If your application needs adjustment up to 0.9 MPa, order the standard GR600 type instead; the same 1 in NPT porting and gauge options are available on both.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.