| Material | Wcb CF8M CF8 |
| Media | Water |
| Size | 15mm to 800mm |
| Pressure | Medium Pressure |
| Connector Type | Flanged End |
| Temperature Of Media | High Temperature, Medium Temperature, Low Temperature |
| WOG Rating | 150, 300, 600 |
L&T Valves manufactures a comprehensive range of Ball Valves in sizes
up to 15 (DN 200) and in ASME classes from 150 to 2500. The valves are
offered in combination of size, pressure class, material of construction,
end-connection, etc., to suit myriad applications in process plants, utility
lines and HVAC.
L&T Ball Valves are available in single-piece, two-piece and three-piece
constructions. In these valves, line pressure forces the floating ball against
the downstream seat to effect bubble-tight sealing
Blowout Proof Stem
The side-entry stem of L&T Ball Valves has a
shoulder that bears against a matching shoulder
in the body to make it blowout proof - the
higher the line pressure, the better the sealing to
atmosphere.
Mirror-finished Solid Stainless Steel Balls
To obtain bubble-tight sealing and lower
operating torques, mirror-finished SS balls are
used as a standard. The solid construction of the
balls guarantees higher structural strength.
Inserts in single-piece Ball
Valves are provided with
a hexagonal slot for easy
removal.
Seats with Pressure-relieving Slots
Seats with fine grain structure are used to ensure
better strength and longer life. Pressure-relieving
slots are a unique feature of L&T Ball Valves. The
slots relieve upstream pressure when the valve is
in closed position and prevent seat damage.
Actuator Mounting Flange
L&T single-piece and two-piece Ball Valves are
provided with an integral actuator mounting
flange conforming to ISO 5211.
Please note that full bore valves in sizes DN 15 to DN 25
would be supplied with mounting arrangement as per L&Ts
manufacturing standard.
High Integrity Stem Sealing
Sealing to atmosphere is further enhanced by
stem thrust seals and stem packing rings. To
compensate for wear and thermal expansions,
Belleville springs are used.
Fire-Safe Feature
L&T fire-safe Ball
Valves feature
secondary metal seats.
In the event of a fire,
after the soft-seat
totally sublimates, the
ball moves and abuts
the downstream metal
seat to form a
leak-tight seal.
Cavity Pressure Relief Mechanism
A slight increase in temperature of fluid
entrapped in ball cavity can cause a rapid
increase of pressure and damage the ball and
seats.
To prevent this, L&T Ball Valves are equipped
with automatic cavity relief mechanisms. When
the valve is in open position, a hole provided on
the ball connects the body cavity to the ball port
and thereby ensure that cavity pressure does
not build up. In the closed condition, when the
cavity pressure rises above a designated level,
the seat lip deflects to relieve pressure to the
upstream side.
