Intervalve Make Butterfly Valve

Confirmity to codes and standards:
general design and manufacturing : api 609 category abs 5155mss sp-67
valve face to face dimensions : short wafer as per iso 5752 tab 5api 609 category a
top flange drilling : iso 5211 part ii
valve inspection and testing : api 598
flange standard conformity : ansi 150 , din pn610, jis 5k 10k bs10 tab d & e, is 6392 np 0.6 1.0
techinical specification :
valve type : centric disc butterfly valve with a single piece rubber lined body
body type : short wafer (sandwiched between flanges)
seat type : integrally moulded with the body.
End connection : wafer sandwiched
size range : 40 nb to 300 nb
pressure rating : pn 10 ( max ) : operating temperature range : -250 c to 1300 c (depending on moc)
seat leakage : tight shut off
operation :
handlever for sizes from 40 nb to 250 nb
worm gear boxes for 40 nb to 300 nb.
Standard material of construction (moc):
body : ci
disc : sgi cf8
seat : epdm nitrile
shaft : aisi 410
key features:
integrally molded seat liner on the body, which ensures excellent dimensional stability & guaranteed seat tightness.
Seat liner extending on to the contact faces ensures perfect sealing and eliminates the need for separate flange gaskets.
Unique triple sealing system for shaft sealing ensures zero leakage of the media past the shaft seals.
Narrow land disc ensures perfect sealing with least operating torque requirements.
A fully universal body design ensures fitment of the valve between companion flanges of all popular standards (viz: ansi, bs, din, jis, is etc )
a ten position notch disc and handlever ensures locking of the valve in 8 intermediate position in addition to closed and open position. Handlever lockable through pad lock for tamper proof positioning.
Body castings made of superior fg 260 grade cast iron to ensure additional strength.
Valve disc made of ductile cast iron instead of cast iron to withstand against possible water hammer or pressure surges.
A truly line size body bore to ensure