Parallel Charging Unit (PCU) – Manifolds for Hydrogen Applications
The PCU from Poppe + Potthoff can be utilized in direct injection (DI) systems to ensure a safe hydrogen supply with uniform distribution to the injectors, thereby reducing pressure pulsations.

Specifications
To distribute hydrogen evenly across multiple storage units during the refueling process, the PCU can also be employed in storage and distribution systems for vehicles and stationary applications.
By varying the manifold dimensions and the number and position of pipe connections, customer requirements and space constraints can be optimally met.
Illustration

Technical Data
Technical Data | |
---|---|
Inner Diameter (ID) of Manifold for DI | 14 mm |
Outer Diameter (OD) of Manifold for DI | 30 mm |
Example Length of Manifold | 325 mm |
Example Volume for DI | approximately 45 cm³ |
Material | PPH2* |
Surface Protection | Zn-Ni |
Sealing Type | Metallic |
Interfaces / Thread Definitions / Mounting Parts | |
Pump Line Connection (2x for pipes OD max. 10 mm) | M22×1.5-6g |
Injector Line Connection (4x for pipes OD max. 6.35 mm) | M15×1-6g |
Temperature and Pressure Sensor | Upon request |
Valves and Filters | Upon request |
Operating Conditions | |
Operating Temperature | −40 to +120 °C |
Nominal Operating Pressure | up to 700 bar |
Maximum Allowable Operating Pressure | Upon request |
Medium | Hydrogen (CGH₂) |
Leakage Rate | <10 Ncm³/h |
Safety Information
The manifolds 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
Further Information on the TOPAQ Hydrogen Distribution System from Poppe + Potthoff