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Flanged Concentric Butterfly Valve With Narrow Body
Model: 12, DN 050 a 600; PN 10 ó 16 | Brand: Eathisa

In some cases in wich there is no much available space for the installation of another type of valve, this valve allows its safety installation through flanges, where other ones does not fit. In the classic butterfly valves, normally, it does not produce a quick water flow closing, with this valve it can be made both slow and quick closing, using for this different acting mechanism both manual and electrical.

DESIGN
Its elastomeric sealing allows a better watertight sealing in any condition.
Its narrow body is adapted to multiple conditions, providing flanges for a safety assembly.
THIS ENSURES THAT
• The sealing of the shaft is made through close O´rings that do not suppose an effective friction.
• The friction between the shaft and the bearing is minimum due to the low rotation coefficient existing between the stainless steal and the bronze.
• It has several acting mechanism from inmmediate acting levers to reducing electrical actuators, which allows an opening and closing as quick as controlled.
• The sealing is achieved through the union between the elastomer and metal, which suppose a watertight sealing.
MATERIALS
• The body is in GG-25 (PN10) gray iron and GGG-40 (PN16) nodular casting.
• The disk is in GG-25 (PN10) gray iron and GGG-40 (PN16) nodular casting.
• 70 shore hardness EPDM elastomeric seat.
• AISI-420 stainless steel shaft.
• The bearings are in B62 bronze.
• Different acting mechanisms.
INSTALLATION
The valve has flanges, even being of narrow body, It is advised that at least one of the two flanges be a dismantling connection.
Generally, this type of valves are put in places where they stay open, because of being closed for a long time cause the deterioration of the sealing, losing watertightness.
DIMENSIONS AND WEIGHTS
E TYPE MANUAL ACTUATOR OPEN-CLOSE, WORM SCREW TYPE ACTUATOR
TORNILLO SIN FIN