Habonim Catalog Interactive 2024 V04 15022024 - Catalog - Page 24
VALVE FEATURES
Ball Configurations
Cavity Pressure Relief
This safety feature is for valve applications where a trapped cavity must be avoided a 3 mm
hole is included in the upstream ball sphere so that any pressure that builds up in the valve
cavity will be released into the upstream pipeline. The use of a cavity pressure relief hole
feature is mandatory when using ammonia, chlorine or any other liquid media that is at
risk of transforming into a gas and thus elevating the pressure within the valve cavity in an
uncontrolled manner. A valve which includes the 'P250' code will always be unidirectional,
and will include an arrow flow plate attached to the valve body. Improper installation in the
opposite direction will cause an in-line leak.
3 mm relief hole
face the upstream
'C' Ball
Habonim offers a two-way ball with its upstream sphere completely machined through the
ball port and thus has a C shape. This feature is mainly used where media tends to crystalize
on the upstream ball sphere such as, for example, molten sugar or baked ground coffee. When
a standard valve is in the closed position and a solid layer has adhered to the ball's upstream
sphere, subsequent valve operation will erode the upstream soft seat, loosen the pre-load of the
ball seats set, and rapidly degrade the valve's functionality. With a 'C' ball media solidification is
impossible as there is no surface area on which the media can accumulate. The upstream seat
withstands the media unscratched; the pre-load of the ball seat set as well as the functionality of
the valve remain intact for a longer period of time.
Upstream sphere completely
machined in a 'C' ball
Multiport and Diverter Ball
Multiport and diverter ball designs are used primarily to split or combine process flows
or to switch medium between alternative pieces of process equipment. The diverter ball
configuration can be either bottom entry or side entry. The diverter ball has the same sphere
diameter as standard 2-way balls so the same soft parts can be used. Multiport balls have
numerous flow configurations, which are described in detail in the Multiport chapter of this
catalog. The multiport ball has a larger sphere diameter than a diverter ball, allowing a firm grip
of four seats vs. two seats in the diverter configuration.
Diverter ball with isometric
T port construction
V-Ball
The V ball is used in control valve solution for less demanding applications, such as clear liquid
at a maximum pressure drop of 6 bar (87 psi), or clean gas at a maximum pressure drop of
10 bar (145 psi), and maximum temperatures of 120-°C (248-°F) for both. The V ball design
is comprised of a floating characterized ball, mounted between two seats, which maintain a
trim preload and bubble-tight shut-off and low torque demand. V-Balls come in a variety of ‘V’
and ‘slot’ shapes, and can be custom designed to meet any control requirement. The V-Ball is
available in a wide range of high-alloy materials and coatings for highly corrosive applications.
24
VALVES
Characterized ball for flow
control applications
