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RP31-Dual Gauge Pressure Regulator
Designed for the aquarium market, featuring an external pressure relief valve, solenoid valve, needle valve, and bubble counter. Compatible with US, EU, JP, and CN CO2 cylinder inlets.
Integrated a pull-ring safety valve.
Dual gauges – For clear pressure monitoring.
High bubble accuracy – Error of less than ±2 bubbles per minute.
| Material | ▲ | Aluminum | |||
| Medium | CO2 | ||||
| Operating Temperature | ‑5℃~43℃ | ||||
| Max. Working Pressure | 12Mpa | ||||
| Proof Pressure | 30Mpa | ||||
| Output Pressure | ▲ | 0.30~0.60Mpa | |||
| Output Pressure Accuracy | ±0.02MPa | ||||
| Pressure Indication | ▲ | Y40 dual pressure gauges for inlet and outlet | |||
| Indication Accuracy | Class Ⅳ (EN 837-1) | ||||
| Inlet Port | ▲ | W21.8-14 / W22-14 / CGA320 / G5/8 / G3/4 | |||
| Outlet Port | ▲ | G1/8 / NPT1/8 | |||
| Relief Pressure(LP side) | 0.8Mpa | ||||
| Solenoid Valve | DC12V 3W,DC connector,IP65,Power Plug | ||||
| Net Weight | 802g | ||||
| (▲ marked parts are standard parameters available for customization.) | |||||
| Material | ▲ | Aluminum | |||
| Medium | CO2 | ||||
| Operating Temperature | ‑5℃~43℃ | ||||
| Max. Working Pressure | 12Mpa | ||||
| Proof Pressure | 30Mpa | ||||
| Output Pressure | ▲ | 0.30~0.60Mpa | |||
| Output Pressure Accuracy | ±0.02MPa | ||||
| Pressure Indication | ▲ | Y40 dual pressure gauges for inlet and outlet | |||
| Indication Accuracy | Class Ⅳ (EN 837-1) | ||||
| Inlet Port | ▲ | W21.8-14 / W22-14 / CGA320 / G5/8 / G3/4 | |||
| Outlet Port | ▲ | G1/8 / NPT1/8 | |||
| Relief Pressure(LP side) | 0.8Mpa | ||||
| Solenoid Valve | DC12V 3W,DC connector,IP65,Power Plug | ||||
| Net Weight | 697g | ||||
| (▲ marked parts are standard parameters available for customization.) | |||||

* Ordering code = Model + "-" + Outlet Pressure+"-"+Inlet+"-"+ Needle Valve & Bubble Counter+"-"Relief Mechanism
Example: RP31AU-075-W1-1-1
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