Hiwi Double Stage Pressure Regulator
Hiwi Double Stage Pressure Regulator
- Can be used in combination with returnable cylinders
- Suitable for use with inline atomizers
- Constant CO2 supply until the bottle is empty
- Manometer for working and cylinder pressure included
- Bubble Counter included
Curbside delivery: This item ships by freight carrier and is delivered to the curb only, not to your door or into your home. The carrier will call you in advance to schedule a delivery date. Learn more about freight delivery
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Description
This high-quality double chamber pressure regulator from Hiwi Euskirchen is used to reduce the pressure of approx. 54 bar within the gas cylinder to a working pressure of approx. 1 to 3 bar (maximum working pressure 3 bar). By combining the working pressure manometer and the cylinder pressure manometer you can regulate the CO2 supply very precisely and you know at once when it is time to refill the cylinder. The integrated fine needle valve allows a very precise regulation of the CO2 supply for the aquarium. Thanks to the double chamber system, the working pressure remains constant until the cylinder is completely empty.
When pressure regulators without a double chamber system are used the working pressure may rise relatively fast and abruptly as soon as the gas filling inside the bottle goes below around 20% of the nominal filling quantity. If you do not re-adjust manually in such a case, the amount of CO2 supplied to the tank will increase significantly and surmount the dosage that was originally set. If you do not want to take on this task, the remaining 20% of CO2 would need constant adjustments of the working pressure.
With this double-chamber pressure regulator, on the other hand, the cylinder can be emptied almost entirely without the need to adjust the working pressure for the last 20% of CO2, which is of advantage especially when you use large CO2 cylinders. In a 10 kg cylinder, e.g., around 2 kg of CO2 would need constant adjustments regarding the working pressure.
A bubble counter is also included in the scope of delivery, which can be screwed directly onto the pressure regulator if desired. The procedure is described in detail in the linked instructions.
Please keep in mind that all components of the pressure reducer have been glued together by the manufacturer. These can not be unscrewed without damaging them. If the needle valve is removed, the manufacturer's liability will expire prematurely. The hose connection on the fine needle valve is an exception. This is not glued in due to the fine thread, so that in the event of a defect, it is not necessary to replace the entire fine needle valve but only the hose connection. The union nut on the needle valve can also be removed if necessary to mount the included bubble counter.
The Hiwi Double Stage Pressure Regulator is also available with a fixed solenoid valve (SV) for night shut-off and a check valve (CV): Hiwi Double Stage Pressure Regulator + SV & CV
In addition to the Double Stage Pressure Regulator, a version with one pressure chamber is also available, which can be used for pure plant aquariums: Hiwi Pressure regulator
Features
- The connection for the CO2 tubing is equipped with a metric thread (M6)
- The pressure regulator is designed for returnable cylinders
- Seal included
- Bubble counter included and can be installed if required
- Thread: W21,8 x 14G
- The thread is the standard in Europe, the United Kingdom (UK) and Taiwan (BS341 / DIN477 / W21.8)
- With German instructions of use
- Suitable replacement seal Hiwi seal hard
Application
Please use the pressure reducer only after reading the operating instructions, which are linked above. There are two different designs of the Hiwi dual-stage pressure regulator: While the gas cylinder is always positioned upright, the pressure gauges either point upwards with side-facing scales or to the side with upward-facing scales, depending on the model. The functionality of the pressure regulator remains fully intact in both cases.
- Make sure that you really start the pressure reducer with a CO2 cylinder.
- Turn the working pressure adjustment screw (operating instructions 6) counterclockwise.
- Close the fine needle valve (operating instructions 5.1) by turning it clockwise. CAUTION: Tighten only slightly!
- Position the pressure reducer so that the pressure gauges are facing upwards.
- Fasten and tighten the pressure reducer to the CO2 cylinder using the union nut (operating instructions 3).
- It is essential to ensure that the seal is correctly seated and that the sealing surfaces are clean. If the seal is damaged or lost, please replace it.
The Hiwi Fixed spanner 30 mm is most suitable for the installation.
Dimensions
| Hiwi Double Stage Pressure Regulator | ||
|---|---|---|
| Width | 170 mm | |
| Height | 170 mm | |
| Depth | 110 mm | |
| Meas. from connection | 115 mm | |
Hiwi
Hiwi is a renowned German manufacturer of CO2 pressure regulators. The highest level of quality and a long useful life are in their focus. These high quality standards do not exclude attractive prices, though.
Especially in aquascaping, the addition of CO2 for the plants is something very basic, and thus it is really important to choose good CO2 supplying equipment. Hiwi meets even the highest quality standards in every aspect und is thus the best choice when it comes to CO2 pressure regulators.
Manufacturer information
| Manufacturer | |
|---|---|
| Name | Hiwi Getränkearmaturenbau & -handels GmbH & Co. KG |
| Street | Felix-Wankel-Str. 5 |
| City | 53881 Euskirchen |
| State | Nordrhein-Westfalen |
| Country | Deutschland |
| info@hiwi.de | |
| Website | www.hiwi.de |
General information
| Item no. |
|
|---|---|
| EAN | |
| Weight | 2,00 kg |
| Shipping weight | 4,20 kg |
Questions and answers about Hiwi - Double Stage Pressure Regulator
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Customer reviews
25 Reviews
| 5 Stars(22) |
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| 4 Stars(3) |
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| 3 Stars(0) |
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| 1 Star(0) |
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The device was purchased as a replacement. As soon as my old CO₂ system finally fails, I'll put this new model into operation. Until then it stays ready as a backup. T
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Ein Ersatz, wenn nötig
Das Gerät wurde als Ersatz angeschafft. Sobald meine alte CO₂-Anlage endgültig ausfällt, werde ich dieses neue Modell in Betrieb nehmen. Bis dahin bleibt es als Reserve bereit. Deshalb kann ich noch nicht viel über den Druckminderer schreiben.
I use a 10 kg CO2 cylinder for two aquariums. One cylinder lasts approx. 6 months and the working pressure is stable until the cylinder is empty.
That's what I had in mind!
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Wertig und zuverlässig
Ich benutze eine 10kg CO2-Flasche für zwei Aquarien. Eine Flasche hält ca. 6 Monate und der Arbeitsdruck ist stabil bis die Flasche leer ist.
So habe ich mir das vorgestellt!
In continuous use for over 3 years now and I'm more than satisfied with this pressure reducer. Very good quality, adjusts very well and works exactly as it should.
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Perfekter Druckminderer
Schon seit über 3 Jahren im Dauereinsatz und ich bin mehr als zufrieden mit diesem Druckminderer. Sehr gute Qualität, lässt sich sehr gut einstellen und funktioniert genauso wie er soll. Würde ihn immer wieder kaufen.
