High-pressure regulator HP NPT 1/4", 1-172 bar, inlet 414 bar, brass
Code: DR14-172HD
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Product detailed description
The DR14-172HD high-pressure regulator reduces the gas pressure from a gas cylinder, a cylinder bundle or a high-pressure network – up to 414 bar – to an adjustable 1 to 172 bar. It is a piston regulator without secondary venting, with a body made of brass and a PFA valve seat.
It belongs to the series of HP high-pressure regulators by the manufacturer AirCom. It is supplied without pressure gauges and without a panel nut; the two NPT 1/4" ports for the inlet and outlet pressure gauges are sealed with plugs.
Specifications
| Parameter | Value |
|---|---|
| Code | DR14-172HD |
| Manufacturer | AirCom, HP series |
| Control range | 1–172 bar |
| Inlet pressure | max. 414 bar (oxygen max. 200 bar) |
| Flow rate | 2,800 l/min at an inlet of 414 bar and an outlet of 172 bar |
| Connection | NPT 1/4" inlet and outlet, 2 × NPT 1/4" for pressure gauges |
| Control | piston |
| Deviation when the inlet changes by 7 bar | < 250 mbar |
| Secondary venting | no |
| Medium | compressed air, nitrogen, oxygen (inlet max. 200 bar), hydrogen, helium |
| Operating temperature | −25 to +75 °C |
| Material | body brass, internal parts stainless steel, spring housing nickel-plated brass, knob PA, seat PFA, seals FKM |
| Dimensions | 50 × 137 mm, port axis 13 mm above the base |
| Panel mounting | hole ⌀ 34 mm, panel thread UN 1 5/16"-20 |
| Scope of delivery | regulator, plugs for the gauge ports |
| Weight | 1.2 kg |
Which gases, and how to use them safely
The manufacturer specifies the regulator for compressed air, nitrogen, oxygen (inlet pressure no more than 200 bar), hydrogen and helium. Safety instructions of the manufacturer AirCom:
- never use oils or greases on gas regulators – they ignite easily and react violently with some compressed gases
- do not use any lubricant during installation – the regulator becomes contaminated, and with oxygen there is a risk of fire
- protect the connected equipment against overpressure with a separate safety valve – the regulator has no secondary venting and cannot protect it by itself
- only instructed personnel may work with flammable, pyrophoric and toxic gases; provide ventilation and gas leak detectors
- the regulator is neither a shut-off valve nor a flow regulator – shut off the gas with the cylinder valve or a shut-off valve in the network
Dimensions and panel mounting
The regulator is 50 mm wide and 137 mm high; the axis of the ports is 13 mm above the base. You fix it in a panel through a ⌀ 34 mm hole with the SM DR 14 HD panel nut.
Installation and adjustment
- blow out all pipes before installation – dirt will damage the valve seat
- before connecting, loosen the knob anticlockwise so that the spring is not under tension
- connect the regulator according to the arrow on the body – from inlet IN to outlet OUT; any mounting position is possible
- the internal filter only provides protection during installation – the manufacturer recommends a filter at the inlet; the gas should be dry so that the regulator does not ice up at high flow rates
- set the pressure from below, always fine-tune towards a higher pressure; do not turn the knob beyond the upper limit of the range
- screw in pressure gauges with NPT 1/4" connections in place of the plugs – the left one for inlet pressure and the right one for outlet pressure
Accessories
- panel nut UN 1 5/16"-20: SM DR 14 HD
- the same range with a stainless steel body: DR14-172HDES
- protection of equipment downstream of the regulator: safety valves
For an air or nitrogen network up to 200 bar with pressure gauges included, there are regulators 120; for connection directly to a cylinder, cylinder pressure regulators.
Additional parameters
| Category: | High-pressure regulators HP for gases with inlet up to 414 bar |
|---|---|
| EAN: | 4050571825096 |
| Pressure: | 414 bar |
| Dimensions: | 50 × 137 mm |
| Weight: | 1,2 kg |
| Material: | Brass |
| Medium: | Compressed air, Nitrogen, Oxygen, Helium, Hydrogen |
| Working temperature: | -25 / +75 °C |
| Flow: | 2,800 l/min |
| Regulatory range: | 1.0 to 172 bar |
| Product type: | Pressure regulator |
| Thread: | NPT 1/4" |
| Regulator type: | Manually adjusted |
| Outlet pressure: | 0.1–1 bar, 1–3 bar, 3–6 bar, 6–10 bar, 10–16 bar, 16–25 bar, 25–50 bar, 50–150 bar, 150–300 bar |
| Pressure gauge included: | No, port only |
Product rating
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AirCom Pneumatic GmbH from Ratingen, Germany, is a specialist in pressure and flow control of gases and liquids. Its range includes pressure regulators from miniature to high-pressure, precision and proportional regulators, compressed air treatment, pressure switches and pressure transmitters.
From AirCom we offer RPM low-pressure regulators, which hold a constant pressure from 5 to 1500 mbar, DRPA proportional pressure regulators, which set a pressure of 0 to 16 bar according to an electric signal of 0–10 V or 4–20 mA, and HP high-pressure regulators with an inlet pressure of up to 414 bar. Plus a mounting bracket for the RPM 12 and software for setting up the DRPA.
From 5 mbar to 172 barAirCom regulators and accessories
RPM 12 with handwheel
From 5 to 1500 mbar. Low-pressure regulator with G 1/2" connection for a constant pressure in millibars.
- ranges 5–45, 10–400, 20–1000 and 50–1500 mbar
- flow 1,000 l/min, inlet 1 to 15 bar
- pressure gauge ⌀ 63 mm included
RPM 10 with adjusting screw
From 5 to 400 mbar. Low-pressure regulator with G 1" connection for fine setting of low pressures.
- ranges 5–45, 10–120 and 10–400 mbar
- flow 1,400 l/min, Kv 1.4 m³/h
- adjusting screw with lock nut
RPM 10 with T-handle
Flow 9,600 l/min. G 1" low-pressure regulator with a larger valve for high air consumption.
- ranges 15–700 and 200–1200 mbar
- flow coefficient Kv 8.4 m³/h
- T-handle with lock nut
DRPA G 1/8"
Flow 210 l/min. The smallest proportional regulator of the series: it sets the pressure according to an electric signal.
- ranges 0–6 and 0–10 bar
- signal 0–10 V or 4–20 mA
- brass body, 35 × 83 × 57 mm
DRPA G 1/4"
Flow 700 l/min. Proportional pressure regulator for ranges up to 0–16 bar.
- ranges 0–6, 0–10 and 0–16 bar
- signal 0–10 V or 4–20 mA
- brass body, 52 × 105 × 68 mm
DRPA G 1/2"
Flow 1,400 l/min. The largest proportional regulator of the series, for high flow.
- ranges 0–10 and 0–12 bar
- signal 0–10 V or 4–20 mA
- aluminium body, 70 × 136 × 85 mm
HP high-pressure regulators
Inlet up to 414 bar. Compact regulators for gases including oxygen, hydrogen and helium, in brass or stainless steel.
- outlet 0.1 to 172 bar
- NPT 1/4", without pressure gauges
- panel mounting possible
DRPA ANALYSE software
Set-up from a PC. Software with RS-232 converter for DRPA proportional regulators.
- shows set and actual pressure
- zero point, range, ramp, P, PI, PID control
- recording of the control process and diagnostics
RPM W bracket
For the RPM 12. Mounting bracket for fixing the RPM 12 regulator to a wall or frame.
- stainless steel
- 152 × 90 × 41 mm
- holes ⌀ 6.5 mm and slots 9 mm
Not sure which regulator to choose? The overview of pressure regulators also includes regulators with a pressure gauge, precision and pilot-operated series.
All pressure regulatorsAirCom regulators at a glance
| RPM low-pressure regulators, DRPA proportional pressure regulators and HP high-pressure regulators | ||||
|---|---|---|---|---|
| Series | Connection | Regulation | Flow | Operation |
| RPM 12 | G 1/2" | 5–45 / 10–400 / 20–1000 / 50–1500 mbar | 1,000 l/min | handwheel |
| RPM 10 | G 1" | 5–45 / 10–120 / 10–400 mbar | 1,400 l/min | adjusting screw |
| RPM 10 | G 1" | 15–700 / 200–1200 mbar | 9,600 l/min | T-handle |
| DRPA | G 1/8" | 0–6 / 0–10 bar | 210 l/min | signal 0–10 V or 4–20 mA |
| DRPA | G 1/4" | 0–6 / 0–10 / 0–16 bar | 700 l/min | signal 0–10 V or 4–20 mA |
| DRPA | G 1/2" | 0–10 / 0–12 bar | 1,400 l/min | signal 0–10 V or 4–20 mA |
| HP | NPT 1/4" | 0.1–1.7 to 1–172 bar | 500–2,800 l/min (at full inlet pressure) | knob |
RPM: inlet pressure 1 to 15 bar, flow according to the manufacturer at 6 bar inlet and the highest outlet pressure of the range, pressure gauge ⌀ 63 mm included. DRPA: inlet pressure max. 12 bar (0–12 bar range 14 bar, 0–16 bar 18 bar), flow at 6 bar inlet and 5 bar outlet, 24 V DC supply, M12 connector; the 0–6 bar range only with a 0–10 V signal.
How to choose and connect an AirCom regulator
1. Manual or electric setting
An RPM regulator holds a constant low pressure that you set once by hand. If the machine control system is to change the pressure, choose a DRPA proportional regulator.
2. Range and size
Choose the smallest range that your pressure fits into – the setting will be finer. Choose the size by the flow in the table above. Mind the units: 1 bar = 1,000 mbar.
3. Prepare the air
Install a compressed air filter upstream of the regulator. The DRPA works with lubricated and non-lubricated air filtered to 50 µm; keep the inlet pressure at least 10 % above the highest pressure to be set.
4. Connect and set
Connect the regulator according to the arrow on the body. On the RPM always set the pressure upwards and lock it with the lock nut. Connect the DRPA via the M12 connector to the 24 V DC supply and the control signal.
Frequently asked questions
- What is the difference between RPM and DRPA?
- The RPM holds a constant low pressure from 5 to 1500 mbar that you set by hand. The DRPA sets a pressure of 0 to 16 bar according to an electric signal from the control system and constantly monitors the outlet pressure with a sensor.
- Does the RPM regulator come with a pressure gauge?
- Yes, a ⌀ 63 mm pressure gauge with a scale matching the range is included. It screws into one of the two G 1/4" side ports.
- Do I need software for the DRPA?
- No, the regulator is factory-set. The software with RS-232 converter is useful if you want to change the zero point, range, ramp or control parameters, monitor the pressure curve or troubleshoot.
- What does the DRPA do if the signal or supply fails?
- It exhausts the outlet. It fills and exhausts the outlet with the same flow and consumes no air itself.
- What does the manufacturer call these regulators?
- The RPM 12 corresponds to type AirCom R161-04, the RPM 10 to type R160-08 and the DRPA to the PP series (proportional regulators with digital control). The full RPM type designation is on each regulator’s product page.
- Where can I find all regulators?
- RPM regulators are in the category RPM low-pressure regulators, DRPA in the category proportional pressure regulators – together with other proportional regulators.
Technical data according to the catalogues of the manufacturer AirCom Pneumatic GmbH (Ratingen, Germany).
| Manufacturing company : | AirCom Pneumatic GmbH |
|---|---|
| Address : | Siemensstraße 18, 40885 Ratingen, Germany |
| E-mail : | info@aircom.net |