L&t Three Piece Ball Valves

Approx. Rs 1,000 / PieceGet Latest Price

Product BrochureProduct Details:

L&T Valves Limited is a wholly owned subsidiary of Larsen & Toubro.

Backed by a fifty-year track-record of excellence and world-leading

innovation, the company provides engineered flow-control solutions for

key sectors of the economy such as oil & gas, power, petrochemicals,

chemicals, fertilizers and pharmaceuticalsL&T Valves manufactures a comprehensive range of Ball Valves in sizes

up to 8" (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.

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.

Antistatic Feature

Static electricity builds up inside a valve when

the ball rubs against non-metallic seats. This

is a fire hazard, especially in flammable fluid

pipelines. L&T Ball Valves have inbuilt antistatic

mechanisms to provide electrical continuity.

Stems of full bore valves of size 65 mm and

above and regular bore valves of size 80 mm and

above are equipped with spring-loaded plungers.

In valves of smaller sizes, electrical continuity is

achieved by using Carbon-filled PTFE thrust seal

 

and graphite stem packings.
L&T VALVES