AirTAC GR400-15 Pressure Regulator (GR40015F1)
The AirTAC AirTAC GR400-15 Pressure Regulator (GR40015F1) 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.
- TypePressure regulator
- Port sizePT1/2"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Pressure typeStandard type
- Pressure gaugeFitted
- Reflux valveNot fitted
- ThreadPT
- BracketFixing bracket included
About the AirTAC GR400-15 Pressure Regulator (GR40015F1)
GR40015F1 is a genuine AirTAC G-series air pressure regulator in size 400 with a 1/2 in PT port, built for compressed air only. As a pure regulator it reduces and holds downstream pressure with an adjustment range of 0.05-0.9 MPa (7-130 psi) and a maximum inlet pressure of 1.0 MPa (145 psi). This version is fitted with a square gauge reading in MPa, so the set pressure can be read directly at the unit. It contains no filter, no bowl and no lubricator - add a GF filter or GL lubricator if your circuit needs those functions.
The G series covers sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and GR units carry optional G (BSPP) or NPT threads, alternative gauge scales, a low-pressure type, a reverse (check) valve, and panel mounting with optional bracket. Operating temperature is -20 to 70 C (non-freezing), and GR pressure loss is low by catalogue. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing on request.
AirTAC GR400-15 Pressure Regulator (GR40015F1) Technical Specifications
| Model | AirTAC GR400-15 Pressure Regulator (GR40015F1) |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT1/2" (PT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard 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, MPa 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.
Model Code: AirTAC GR400-15 Pressure Regulator (GR40015F1)
| GR400 | G-series pressure regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 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. |
| (blank) | Fixing bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | PT 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.
Size Class
- GR200PT1/8" - PT1/4"
- GR300PT1/4" - PT1/2"
- GR400PT3/8" - PT1/2"
- GR600PT3/4" - PT1"
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 | GR400 · PT1/2" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
Where the AirTAC GR400-15 Pressure Regulator (GR40015F1) Is Used
Pneumatic clamp circuits on weld fixtures
Set and hold a stable downstream pressure for clamp cylinders in an automotive weld cell, so clamping force stays consistent across every cycle.
Air supply to packaging machinery
Regulate the feed pressure going to sealing jaws, counters and vacuum generators on a form-fill-seal line, independent of compressor swings.
Pick-and-place gripper supply
Feed grippers, rotary actuators and stopper cylinders on an assembly cell at a fixed, readable pressure set on the unit's MPa gauge.
Is the AirTAC GR400-15 Pressure Regulator (GR40015F1) the Right Regulator?
Size 400 with a 1/2 in PT port sits in the middle of the G-series range; step down to 300 or up to 600 depending on your pipe diameter and downstream demand. This code specifies the square gauge on the MPa scale - order F2 for psi or F3 for bar instead. Thread options are G (BSPP) or NPT as catalogue alternatives, and adding J to the code deletes the bracket. AirTAC publishes regulator flow as performance curves, not a single rated figure, so ask us to check the curve for this size against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" here)
- ✓ Standard 0.9 MPa or low-pressure 0.4 MPa
- ✓ Gauge fitted, or order N without
- ✓ Gauge shape C round / F square
- ✓ Scale MPa (1), psi (2) or bar (3)
- ✓ Reflux valve needed, order K
Installation & Maintenance Notes
- check Install downstream of the filter, following the airflow arrow.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure while air is flowing, then lock the knob.
- check Adjust within 0.05 - 0.9 MPa (7 - 130 psi) only.
- check Operating range -20 to +70 °C.
- check Panel-mount or use the fixing bracket; do not hang it on tubing.
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 GR400-15 Pressure Regulator (GR40015F1) FAQ
AirTAC publishes regulator flow as performance curves rather than a single rated figure, so we do not quote a number on this page. We confirm the flow curves and datasheet for this size 400, 1/2 in PT unit on request - send us your downstream demand and we will check the fit with you before you order.
F selects the square gauge option and the digit 1 sets its scale to MPa, so this unit reads set pressure in MPa. Alternative order codes are F2 (psi scale) and F3 (bar scale), and omitting the gauge code gives the standard gauge configuration. The letter N would delete the gauge entirely.
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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.