AirTAC GPR400 Precision Regulator, 1/4"-1/2" Port
Every stocked AirTAC GPR400 configuration on one page: 36 order codes with 1/4"-1/2" ports, from $100.00. Pick the port, pressure range and configuration to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GPR400
The AirTAC GPR400 is a GP-series precision pressure regulator. It has 1/4", 3/8", 1/2" ports (PT thread as standard). Three setting ranges are offered: high (H) 0.01-0.8 MPa, medium (M) 0.01-0.4 MPa and low (L) 0.01-0.2 MPa, with 1.0 MPa maximum inlet pressure.
It regulates with high precision and responds quickly, with good pressure and flow characteristics. It mounts on its own bracket or directly on a GAF modular filter; where the supply air carries condensate or dust, fit a GAF filter and a GPF mist separator ahead of it. Proof pressure 1.5 MPa (215 psi), temperature -20 to +70 °C (no freezing).
GPR400 Technical Specifications
| Model | GPR400 |
|---|---|
| Port | 1/4" (08), 3/8" (10), 1/2" (15) |
| Thread | PT (standard) |
| Weight | 717 g |
| Fluid | Air |
|---|---|
| Setting range | H 0.01 – 0.8 MPa · M 0.01 – 0.4 MPa · L 0.01 – 0.2 MPa |
| Maximum inlet pressure | 1.0 MPa |
| Sensitivity | Within 0.2% F.S. |
| Repeatability | Within ±0.5% F.S. |
| Air consumption | ≤ 9.5 L/min (08/10), ≤ 11.5 L/min (15) (ANR) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 °C (no freezing) |
Source: AirTAC Products Catalog 2026A (p.242, PDF01-P0244), GPR ordering code and specifications.
How the GPR400 Order Code Is Built
| GPR400 | Series and body size |
|---|---|
| 08 / 10 / 15 | Port: 08 = 1/4", 10 = 3/8", 15 = 1/2" |
| H / M / L | Setting range: high / medium / low |
| J | Without bracket (blank = bracket included) |
| N | No gauge (blank = gauge fitted) |
| G / T | Thread: G = G, T = NPT, blank = PT |
All AirTAC GPR400 Order Codes (36)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Port | Pressure range | Configuration | Price | Select |
|---|---|---|---|---|---|
| GPR40008H | 1/4" (08) | High 0.01-0.8 MPa (H) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40008HJ | 1/4" (08) | High 0.01-0.8 MPa (H) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40008HN | 1/4" (08) | High 0.01-0.8 MPa (H) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40008HJN | 1/4" (08) | High 0.01-0.8 MPa (H) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40008M | 1/4" (08) | Medium 0.01-0.4 MPa (M) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40008MJ | 1/4" (08) | Medium 0.01-0.4 MPa (M) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40008MN | 1/4" (08) | Medium 0.01-0.4 MPa (M) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40008MJN | 1/4" (08) | Medium 0.01-0.4 MPa (M) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40008L | 1/4" (08) | Low 0.01-0.2 MPa (L) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40008LJ | 1/4" (08) | Low 0.01-0.2 MPa (L) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40008LN | 1/4" (08) | Low 0.01-0.2 MPa (L) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40008LJN | 1/4" (08) | Low 0.01-0.2 MPa (L) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40010H | 3/8" (10) | High 0.01-0.8 MPa (H) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40010HJ | 3/8" (10) | High 0.01-0.8 MPa (H) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40010HN | 3/8" (10) | High 0.01-0.8 MPa (H) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40010HJN | 3/8" (10) | High 0.01-0.8 MPa (H) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40010M | 3/8" (10) | Medium 0.01-0.4 MPa (M) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40010MJ | 3/8" (10) | Medium 0.01-0.4 MPa (M) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40010MN | 3/8" (10) | Medium 0.01-0.4 MPa (M) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40010MJN | 3/8" (10) | Medium 0.01-0.4 MPa (M) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40010L | 3/8" (10) | Low 0.01-0.2 MPa (L) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40010LJ | 3/8" (10) | Low 0.01-0.2 MPa (L) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40010LN | 3/8" (10) | Low 0.01-0.2 MPa (L) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40010LJN | 3/8" (10) | Low 0.01-0.2 MPa (L) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40015H | 1/2" (15) | High 0.01-0.8 MPa (H) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40015HJ | 1/2" (15) | High 0.01-0.8 MPa (H) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40015HN | 1/2" (15) | High 0.01-0.8 MPa (H) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40015HJN | 1/2" (15) | High 0.01-0.8 MPa (H) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40015M | 1/2" (15) | Medium 0.01-0.4 MPa (M) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40015MJ | 1/2" (15) | Medium 0.01-0.4 MPa (M) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40015MN | 1/2" (15) | Medium 0.01-0.4 MPa (M) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40015MJN | 1/2" (15) | Medium 0.01-0.4 MPa (M) | No bracket (J) · No gauge (N) · PT thread | $100.00 | |
| GPR40015L | 1/2" (15) | Low 0.01-0.2 MPa (L) | With bracket · With gauge · PT thread | $106.98 | |
| GPR40015LJ | 1/2" (15) | Low 0.01-0.2 MPa (L) | No bracket (J) · With gauge · PT thread | $105.84 | |
| GPR40015LN | 1/2" (15) | Low 0.01-0.2 MPa (L) | With bracket · No gauge (N) · PT thread | $101.19 | |
| GPR40015LJN | 1/2" (15) | Low 0.01-0.2 MPa (L) | No bracket (J) · No gauge (N) · PT thread | $100.00 |
Need a combination that is not listed? Request a quote.
Where the GPR400 Is Used
Precise low pressures
Sets low, stable pressures for blow-off and test benches.
Instruments and sensors
Steady supply for pneumatic instruments.
Balancing and tension
Holds force steady on air balancers.
Choosing the Right GPR400 Configuration
Start with the port size of your air line: 1/4" (08), 3/8" (10), 1/2" (15).
Then the setting range: H 0.01-0.8 MPa, M 0.01-0.4 MPa or L 0.01-0.2 MPa. Pick the smallest range that covers your set point for the finest control.
Finally the configuration. A mounting bracket is included unless the code carries J. N means no pressure gauge.
AirTAC GPR400 FAQ
H 0.01-0.8 MPa (1.5-116 psi), M 0.01-0.4 MPa (1.5-58 psi), L 0.01-0.2 MPa (1.5-29 psi). Maximum inlet pressure 1.0 MPa.
1/4" (08), 3/8" (10), 1/2" (15); PT thread as standard.
Sensitivity is within 0.2% F.S. and repeatability within ±0.5% F.S.
No. You can order a single piece. Orders are processed and handed to the carrier within 3-5 business days.
Buying the GPR400 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-11-03.
Request a Quote for the GPR400
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.