sequence valve

sequence valve

sequence valve
Retraction of main strut. Doors retraction line is cut-off by check valve.
sequence valve
Main strut is retracted. Rod opens the valve. Pressure is fed for doors retraction.
sequence valve
A type of flow valve that performs a series of actions in sequence, each completion starting the next. For example, sequence valves are used in an aircraft hydraulic system to cause the wheel-well doors to open fully before the landing gear is released from its uplocks.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
A vented sequence valve can be used in any area that is not near a drying hopper.
Follow These Steps to More Efficient Central Pneumatic Conveying: Depending on when you bought and installed it, there are ways to 'tweak' your central pneumatic conveying system to improve its performance and save you some money
A sequence valve locks and unlocks the bucket cradle and side-dump operation.
INNOVATIONS
A sequence valve locks and unlocks the bucket cradle and side dump function, providing added safety and control during transportation and placement.
JRB/Paladin Construction
A sequence valve senses the pressure to port 1 (Step 2).
Best of both worlds: mechanical clamping and hydraulics combined
AEC/Whitlock SR stainless steel hoppers now include models with a sequence valve that is integral to the hopper cover.
AUXILIARY EQUIPMENT
Local stations receive recipes and execute the process downloaded from the supervisor's software using digital and analog I/O to sequence valve actuators, regulate temperatures, etc.
Retort process control
For example, a sequence valve (or relief valve) belongs to the class of two-way control valves as well as to the class of pressure relief valves.
An expert system for hydraulics
Standard mounting frame and optional sequence valve makes it easy to add vacuum receivers to the system as needed.
Low-throughput blender for extrusion, lab applications
A sequence valve is a normally closed, internally piloted valve which remains closed until pressure in the primary circuit reaches the preset level of the valve.
Flow and pressure controls, Part IV: Pressure control in circuit branches. (Hydraulic Systems Trends)
The DMV valves are activated by the sequence valve on the vacuum hopper and the source valve is controlled by the purge valve at the source.
Resin conveying: no more 'spaghetti bowl'
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