Page 8 - C.B.Trading - Intervalve
P. 8
BUTTERFLY VALVE
PTFE Lined Butterfly Valve
Key Features
Full PN10 pressure rating for the entire range of valve sizes from
DN50 to Dn350.
Bi-directional valve with sealing capability to hold rated shut-off
pressure in either direction.
A circularly moulded backup elastomer provides uniform contact
pressure over the entire seat without losing shaft bore shape,
ensuring bubble-tight closure every time.
A unique triple sealing system for shaft sealing eliminates any
fugitive emission or secondary leakage.
Self-lubricated shaft bearings (PTFE coated stainless steel) for
both the drive end and non-drive end shaft ensure minimum
bearing friction torque.
Live loaded disc shoulder sealing arrangement through pusher
and disc springs in both top and bottom shaft bores, acting on
PTFE liner ensures leak-free mechanical stem seal.
Back up elastomer standardized in Viton to ensure excellent
corrosion protection and maximum temperature resistance
against media fumes and higher temperatures.
Disc springs and fasteners are standardized on corrosion-resistant
stainless steel to ensure long service.
A choice of exotic metallurgy for the disc, to meet any type of
aggressive media.
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