AIR C R A FT Anti-Ice / Starting Bleed Control Valve - Vacco
AIR C R A FT Anti-Ice / Starting Bleed Control Valve - Vacco
AIR C R A FT Anti-Ice / Starting Bleed Control Valve - Vacco
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<strong>Anti</strong>-<strong>Ice</strong> / <strong>Starting</strong> <strong>Bleed</strong> <strong>Control</strong> <strong>Valve</strong> 73340-20<br />
This modulating poppet valve was designed to perform<br />
dual functions on gas turbine engines:<br />
1. Provide hot air flow for engine anti-ice protection.<br />
2. Automatically bleed air from the engine during<br />
the starting cycle.<br />
The valve features two independent outlets with proportionate<br />
flows between them. During starting, this unit is<br />
full open to provide maximum bleed. An engine operated<br />
cam within the valve closes the valve automatically<br />
upon completion of the starting cycle.<br />
Actuation of a solenoid switches the valve to the antiicing<br />
mode where a cam schedules the correct flow<br />
area for anti-icing.<br />
<strong>AIR</strong>CRA<strong>FT</strong><br />
Features<br />
• Position indication<br />
• High temperature capability<br />
• Lightweight; approximately 5 lbm<br />
• Compact, long life<br />
• No lubrication required<br />
Operating Parameters<br />
Operating Pressure Range ........................0 to 50 psig<br />
Proof Pressure ................................................100 psia<br />
Burst Pressure ................................................165 psia<br />
Media Temperature............................. -65ºF to +480ºF<br />
Ambient Temperature Range.............. -65ºF to +250ºF<br />
Operating Leakage ................................... 0.15 lbs/min<br />
Non-Operating Leakage............................ 0.45 lbs/min<br />
Operating Voltage ...................................16 to 30 VDC<br />
Maximum Current Consumption ........................ 1 amp<br />
Flow<br />
Start <strong>Bleed</strong> ..................................... 0 to 0.64 lbs/sec<br />
<strong>Anti</strong>-icing ................................... 0.34 to 0.66 lbs/sec<br />
Weight..................................................................5 lbm<br />
Performance characteristics are based on customer requirements. As such, they are not representative of component capabilities or limitations.<br />
VACCO Industries | 10350 <strong>Vacco</strong> Street | South El Monte, CA 91733<br />
T: (626) 443-7121 | F: (626) 442-6943 | E: aircraft@vacco.com | W: www.vacco.com<br />
A Subsidary of ESCO Technologies Inc.<br />
© VACCO Industries Rev 9/12
Envelope Drawings<br />
73340-20<br />
Electric Schematic<br />
VACCO Industries | 10350 <strong>Vacco</strong> Street | South El Monte, CA 91733<br />
T: (626) 443-7121 | F: (626) 442-6943 | E: aircraft@vacco.com | W: www.vacco.com<br />
A Subsidary of ESCO Technologies Inc.<br />
© VACCO Industries Rev 9/12
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