The AirTAC GR600-20 AirTAC Low-Pressure Air Regulator PT3/4 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 PT3/4" 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 GR600-20 is an AirTAC GR600 series air pressure regulator in the 600 size with a 3/4 in PT port. This is the low-pressure (L) type, so the outlet setting range tops out at 0.4 MPa instead of the standard range - the right choice when downstream cylinders, actuators or processes must never see full line pressure. Because this is a regulator only, it performs no filtration and adds no lubrication; it reduces and holds outlet pressure from your compressed air supply. The C in the code means an external round pressure gauge on the psi (2) scale is fitted, so the setpoint can be read directly at the unit. A mounting bracket is included, and the GR body is also panel-mountable.
This is a genuine AirTAC part from the GR family, which spans the 200, 300, 400 and 600 sizes with port sizes from 1/8 in up to 1 in, in standard and low-pressure types, with gauge and thread options to match your line. Max working (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 families. We do not quote a single rated flow figure because AirTAC publishes flow as curves; ask us and we will confirm the datasheet figures for your application before you order.
| Model | GR600-20 AirTAC Low-Pressure Air Regulator PT3/4 |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT3/4" (PT 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 — round, 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. |
|---|---|
| 20 | Port size PT3/4". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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.
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 · PT3/4" · 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 wrapping line that runs actuators at reduced pressure, the GR600-20 steps the 3/4 in main supply down to a controlled low setting, with the round psi gauge letting operators verify the setpoint at a glance.
Spray and coating setups need delivery pressure held steady and low. This low-pressure regulator on the 3/4 in feed to the booth holds the working pressure below the 0.4 MPa ceiling the process requires, without filtering or oiling the air.
Pneumatic clamping fixtures often call for a gentle, fixed holding pressure rather than full line pressure. Mounted on the bracket beside the fixture, the GR600-20 regulates the 3/4 in supply down to the clamping setpoint and reads it on the psi gauge.
Start with the port step: this 600-size unit carries a 3/4 in PT port, the largest standard step in the GR range (06=1/8, 08=1/4, 10=3/8, 15=1/2, 20=3/4, 25=1). Pick the size against the flow your line needs - and because flow is published as curves rather than one rating, ask us to confirm the sizing against your application before ordering. Next, check the pressure class: this is the low-pressure (L) type with a setting range up to 0.4 MPa; if you need the full standard range, order the non-L variant instead. The C2 suffix gives you the external round gauge on the psi scale; square embedded gauges and MPa or bar scales are the other catalogue options. Thread is PT as standard, with G (BSPP) and NPT available as order options, and the included bracket supports either bracket or panel mounting.
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 regulator flow as performance curves, not as a single rated number, so we do not quote a flow figure here. Tell us your line pressure, set pressure and the flow your application needs, and we will confirm the datasheet curve data for the GR600-20 before you order.
The L in the code marks the low-pressure type: its setting range tops out at 0.4 MPa, versus the standard GR range. Choose the low-pressure type when the process must stay at or below that ceiling; choose the standard type when you need the wider adjustment range. Both share the same 1.0 MPa (145 psi) max inlet pressure.
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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.