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Hydraulic Ram Goggle Valves
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Hydraulic Ram Goggle Valves
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Features
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Details
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Dimensions
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Construction:
The valve is manufactured under exacting conditions to provide the finest quality of workmanship. It is ruggedly
constructed of welded, fabricated steel. It is a self-contained unit and is so designed that no supports
are necessary other than those normally required for supporting the main. The valve is made up of three principal
components:
The Body:
which is flanged for bolting in the gas main, and contains a removable seating ring.
The Pressure Plate:
one end of which forms a removable seating ring and the other end which contains a built-in expansion
piece.
The Goggle Plate:
which is counter-balanced for quick, easy operation is pivoted to provide a free floating movement
when the seats are separated.
The complete valve is contained between the flanges and no parts project beyond the face of the flanges. The bore of the valve is completed
unrestricted. A drain can be provided for periodic flushing. A clean bore also reduces pressure loss through the valve.
In the event that the valve is inserted in a brick-lined main, special steel liners
backed with insulating material can be supplied. Since sufficient column strength is contained within the valve,
no additional support is required as the valve becomes a section of the main.
All Kinney-Miles Hydraulic Ram Goggle Valves are supplied as self-contained units, complete with a high pressure
hydraulic pump and all of the necessary high pressure piping.
Valves are constructed according to customers' specifications are requirements for operating pressures and temperatures.
No additional services such as steam or water are required, the valve seating rings and goggle plate rings can
be water cooled for high temperature applications.
Operation:
The goggle plate is easily swung from the open to the closed position by means of a hand chain operating through a worm gear reduction box.
For motor operation an electric driven actuator, incorporating torque and limit switch protection, is coupled to the manual operator with chain
wheel and declutch lever provided for manual operation in event of an electrical power interruption. A hydraulic pump is used to activate the rams and can be remotely placed
or located in the he vicinity of the hand chain. A special grad of oil is supplied and is adequate for any temperature service. When the valve
is not in service and the hydraulic pump is switched off, the oil is under a constant low pressure which prevents air entering the system. The time required
to operate the valve from the open to the closed position varies from 30 seconds to 45 seconds, depending on the size of the valve.
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