The AirTAC GR600-25LF2T 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 GR600-25LF2T is an AirTAC GR-series air pressure regulator - a regulation-only unit with no filter, no bowl and no lubricator. This is the 600 size, the largest in the GR line, with a 1 in NPT port (the trailing T in the code). The L in the code marks the low-pressure type, which regulates outlet pressure up to 0.4 MPa, and the F2 marks the embedded square gauge with a psi scale. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the GR series carries the widest temperature rating in the G family at -20 to 70 C (non-freezing). A mounting bracket is included, and the GR body is also panel-mountable.
This is a genuine AirTAC part. The GR line spans 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, in standard or low-pressure (L) types, with or without gauge (N), with MPa, psi or bar gauge scales, with an optional reverse/check valve (K), and in PT (standard), G or NPT thread. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | GR600-25LF2T 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 | Fixing bracket included |
| 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 | 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.
| 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. |
| (blank) | Fixing bracket included. |
| (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. |
| (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 | GR600 · PT1" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
On a carton-sealing or shrink-wrap line, air cylinders and blow-off nozzles often run best well below full line pressure. This low-pressure GR600 regulator holds a stable outlet up to 0.4 MPa on a 1 in NPT supply branch, with the psi square gauge giving operators a direct readout at the machine.
Spray guns and atomising air in a paint booth need a gentle, steady supply rather than full header pressure. Mounted on the booth's 1 in NPT feed, this regulator lets the finisher dial in and hold the low working pressure, while the wide -20 to 70 C rating tolerates an unheated plant corner.
Workholding clamps on a CNC fixture can be damaged by over-pressure. Feeding the clamp circuit through this 600-size low-pressure regulator caps the outlet at up to 0.4 MPa, protecting the fixture while the embedded psi gauge lets the setter verify the setting at a glance.
Start with the size and port: the 600 frame with a 1 in port suits the highest-flow branch of the GR range, but the right step depends on the flow your line actually needs - we can check the published flow curves against your demand before you order. Then choose the regulator type: this unit is the low-pressure (L) type, regulating up to 0.4 MPa; if your process needs the full 0.05-0.9 MPa range, the standard GR type is the correct pick instead. Gauge options are the embedded square gauge (this unit: psi scale) or no gauge (N), with MPa, psi or bar scales available. Thread is NPT here; PT is the catalogue standard and G is also an order option. A mounting bracket is included, and the GR can also be panel-mounted. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 GR-series flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your inlet pressure, set pressure and required air consumption, and we will confirm the flow from the datasheet curves on request before you order.
The L marks the low-pressure type: it regulates outlet pressure up to 0.4 MPa. A standard GR600 (no L in the code) regulates over the wider 0.05-0.9 MPa range. Both share the same 1.0 MPa (145 psi) maximum inlet pressure, so choose the L type when your process only ever needs a lower working pressure.
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.