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TESCOM™ HV-3500 Series Hydrogen Onboard Regulator

TESCOM HV-3500 Series Two Stage Pressure Reducing Regulator is a reliable, low maintenance pressure control solution. This EC79-tested solution is specially designed for use onboard industrial and commercial medium and heavy-duty hydrogen fuel cell vehicles and allows manufacturers to maximize fuel efficiency and keep their fleet on the road for a longer distance. The HV-3500 also provides consistent pressure and continuous flow in a full range of operating conditions. It is suitable for nominal inlet pressures up to 35.0 MPa and can reach flow rates above 3.2 g H2/s.

Specifications

Nominal Inlet Service Pressure5076 psi / 35.0 MPa / 350 Bar
Maximum Inlet Service Pressure6345 psi / 43.8 MPa / 438 Bar
Minimum Inlet Pressure290 psi / 2.0 MPa / 20.0 Bar<br>*Operating at pressures below this minimum pressure could limit the maximum flow rate
Design Proof Pressure150% of nominal inlet service pressure
Pressure RatingPer Criteria of ANSI/ASME B31.3
LeakageBubble-tight
Operating Temperature-40 °F TO +185 °F / -40 °C TO +85 °C
Flow CapacityCv 0.17
Decaying Inlet Characteristic0.05 psi / 3.4 mbar per 100 psi / 6.9 bar change in inlet pressure
Filter10 µm<br>*The 10 µm filter is for initial system assembly protection. The product is designed to be used with particulate free hydrogen. Your system should be designed with proper filtration before the regulator to protect against contamination.<br>316 SST
BodyAluminum 6061-T6 with Electroless Nickel Plating
SeatPolyimide (Vespel® SP1)
O-RingsNitrile (Buna-N)
Main Valve316 SST
Valve Spring316 SST
First and Second Stage Spring17-7 SST
Piston316 SST
SensorAluminum 6061-T6
Remaining Parts300 Series SST, Aluminum 6061-T6 , Polyimide (Vespel® SP1)
CleaningCGA 4.1 and ASTM G93
Weight3.5 lbs (1.6 kg)