TOPAQ On Tank Valve (OTV)
The On-Tank Valve (OTV) ensures safe refueling and gas extraction processes, as well as the storage of gas in stationary and mobile hydrogen (H₂) tanks.
Technical Data and Specifications
With its optimized modular design, the On-Tank Valve allows for the fulfillment of individual customer requirements while complying with relevant legal standards (UN/ECE R134, HGV 3.1).
Illustration
Technical Data of the On Tank Valve
| Technical data | Operating conditions |
|---|---|
| Installation Space Diameter | Ø 160 mm |
| OTV Height (Screwed In) | 37.7 mm |
| OTV Height | 202 mm |
| OTV Body Height | 127 mm |
| OTV Weight | approx. 1400 g |
| OTV Body Weight | approx. 685 g |
| Tank Connection | 1½″-12 UNF |
| OTV Body Material | Anodized Aluminum |
| Sealing Types | Metallic, O-Ring, PEEK |
| Operating Temperature | −40 to +85 °C |
| Nominal Operating Pressure | 700 bar |
| Maximum Allowable Operating Pressure | 875 bar |
| Test Pressure | 1050 bar |
| Kv-Value (Refueling / Extraction)* | 0.18 / 0.10 |
| Medium | Hydrogen (CGH₂) |
| Leakage Rate (per UN/ECE R134) | < 10 Ncm³/h |
Technical Data of Accessory Components
| Technical data | Operating conditions |
|---|---|
| Solenoid Valve | |
| Operating Voltage | 12 V or 24 V DC (PWM signal) |
| Temperature Sensor | |
| Thermocouple | Discrete NTC thermistor |
| Operating Temperature | −60 to +150 °C |
| Thermal Pressure Relief Device (TPRD) | |
| Activation Temperature | 110 ±5 °C |
| Minimum Flow Diameter | 4.4 mm |
| Flow Limiter | |
| Activation Flow Rate (@ 20 bar / ambient temperature) | 2.1 – 3.4 g/s |
| Filter Pore Size (Inlet / Outlet) | 10 μm |
| Check Valve | |
| Opening Pressure | < 3 bar |
| Sealing Pressure | ≥ 2 bar |
| Hand Valve / Vent Valve | Activated by hexagon / square drive |
Safety Information
The On-Tank Valve should only be used after installation by qualified personnel in accordance with the corresponding installation instructions. Use for the production of commercial goods is only permitted in certified countries. Otherwise, the product may only be used for testing purposes.
Data Sheet
Download On Tank Valve Datasheet
Further Information on the TOPAQ Hydrogen Distribution System from Poppe + Potthoff