Aerodyne Controls has employed our many years of experience designing state of the art Aerospace valves to the Alternate Fuel industry. Aerodyne has recently developed several new products for use in both vehicular fuel distribution, and fuel cell cooling. The following are examples of some of Aerodyne's latest Alternate Fuel Vehicle valves.

Fuel (GH₂) Control Valves:
Solenoid Valve:
The Aerodyne GH₂ solenoid valve (part #10348) is designed for "in tank" installation. This valve is a piloted shut off valve that uses internal tank pressure to assist in maintaining a pressure differential across the main poppet. This pressure differential contributes to the valve's low internal leakage capability. When the solenoid is energized, the poppet fully shifts, and hydrogen flows to the outlet port.

Characteristics:

• Fluid: Gaseous Hydrogen (GH₂)
• Type: Normally Closed
• Inlet pressure: over 10,000 psig
• Flow range: 0 to 3 g/s (75 scfm)
• Operating temperature: -40°F to +185°F (-40°C to 85°C)
• Material: 316 CRES
• Voltage: 14VDC @ 1 amp (continuous)

Aerodyne part #10348 solenoid valve

Pressure Regulator:
The Aerodyne GH₂ pressure regulator (part #10257) is a two stage design consisting of a balanced poppet at the first stage and an unbalanced poppet at the second stage. Inlet gas is reduced to approximately 300 psig at the outlet of the first stage. The first stage is also equipped with a safety relief that is activated at 375 psig. The second stage reduces pressure to 145 psig at the outlet. The second stage is also equipped with a relieving mechanism that is activated at 174 psig.

Characteristics:

• Fluid: GH₂
• Inlet pressure range: 220 psig to over 10,000 psig.
• Outlet Pressure: 145 psig
• Flow range: 0 to 3 g/s (75 scfm)
• Operating temperature: -40°F to + 185°F (-40°C to 85°C)
• Material: 316 cres

Aerodyne part #10257 pressure regulator

Fuel Cell Coolant Control Valves:
3-Way Butterfly Control Valve

The Aerodyne 3-way butterfly valve (model 9937 series), are designed as a fluid (liquid or air) coolant control valve. These valves divert flow from a single inlet (port A) to two outlet ports (B & C). The two outlet port butterfly elements are mounted onto a common shaft, allowing a single motor to actuate the valve. The outlet ports are configured to operate inversely (i.e. port B opens as port C closes). The brushless DC motor allows for fine modulation (proportional) control of flow between port B and C.

The valve can be configured as a diverting valve (on/off) function, or as a mixing valve (modulating function). Rotary potentiometer feedback allows for precise positional control. The user control signal sets the position of the valve. The valves control operation can be modified for each individual applications requirement. Electronic controls are environmentally sealed.

Materials:

• Aluminum housing standard for all applications involving water, coolant mixtures, and air.
• Aluminum and stainless steel wetted parts.
• Nitrile or Ethylene Propylene seals.

*Other materials available to meet more corrosive media or environments.

Highlights:

• DC Brushless Motor with Electronic Controller
• Rotary Potentiometer Position Indicator
• 2.5" Butterfly
• 5 sec full operation span from Open to Close Position
• 1.5" to 2.5" Ports
• Flow Rate: up to 170 GPM (660 lpm)
• Operating Pressure: 55 psi (3.75 Bar)
• Operating Temperature Range: -4°F to +185°F (-20°C to +85°C)
• Weight: 10.7 lbs (4.85kg)

Aerodyne 3-way butterfly valve (part #9937-1-000)

1-888-778-0300
Phone: (631)737-1900• Fax: (631)737-1912
30 Haynes Court • Ronkonkoma, NY 11779
E-mail sales@aerodyne-controls.com