FLUITEK ORSENIGO Parallel Slide Bolted Bonnet

Design Features

This type of on-off valve is an alternative to the traditional wedge type gate valves. The disc is in two halves, spring loaded, that seat on parallel seat rings. The disc “slides” in contact with the seats, hence the name.
The advantages of this product versus the traditional wedge type product are:
The disc never blocks in closed position (phenomenon that may occur with a wedge type that is closed with the line in temperature and opened when the line is cold).
The opening/closing torque is much lower than a corresponding wedge type valve, resulting in less expensive actuation systems.
The “sliding” feature keeps dirt away from the seating surface.
The double spring loaded disc has the tendency to trap working fluid in the body cavity when the valve is closed. This is avoided, when unidirectional functioning is allowed, by applying an equalizing hole on the upstream part of the disc.
Design codes and overall configuration, including stem-to-disc connection are the same than the wedge type gate valves.

 

Industries

Oil & Gas, Chemical & Petrochemical, Power Plant

 

Materials

Materials range from carbon steel to low alloy steel, to austenitic stainless steel, to nickel alloys.
Materials are either to ASTM/ ASME standards or to EN standards, either harmonized or calculated to design conditions.

 

Pressure and Temperature

 

Size

Size range depends on pressure class requirements, FLUITEK ORSENIGO VALVES having no limits in relation to market requirements.

 

Connection

Pressure classes (per ANSI standard) are normally ranging from 150# to 300# to 600#.

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