Hi-Tech Butterfly Valves India Pvt. Ltd.

One of the most important features of the Hi-Tech Butterfly valve is the stem seal. The pressure to keep the two sealing surfaces together is provided by an upper and lower set of Cup & Cone Packings resulting in a superior stem seal.
The elastomer back-up pads behind the liner ensure a tight fit around the disc, giving a bubble tight shut-off at minimum operating torque.
The liner provides a wide flange sealing surface.
The liner and disc are the only two valve parts in contact with the medium.
Primary shaft sealing by preloaded contact between disc and liner hub.
Secondary shaft seal by oversizing the shaft diameter in relation to the shaft hole in the liner.
The liner and disc are molded and machined to close tolerances to provide:
Low torque
Less stress and deformation during opening and closing
Elimination of tearing and bunching
An integrated part of the primary and secondary sealing in the shaft area
Optional TFM lining available for extremely demanding applications.
Integral body locating holes to ease installation and to ensure perfect centering of the valve between flanges.
Actuator Mounting flange dimensions according to ISO 5211.
Anti blow-out shaft provision.

Size Range	Class
2" - 72"	PN 6/PN 10/PN 16/Class 150
End connection	Flanged / Lug / Wafer
Operation	Lever, Gear Operator, Electrical Actuator, Pneumatic Actuator.

Design Standard	API 609, BS 5155, IS 13095, ASME B 16.34, IS 13095
Testing Standard	API 598 / BS 6755 I / BS EN 12266-1
Face To Face	AWWA C 504, API 609, BS 5155, IS 13095 , ASME B 16.34, IS 13095
End Connection	ANSI B 16.5, BS 10 Table, AWWA C 207, IS 6392, ASME B 16.47, etc.

Operator	Size Range
Lever :	2"- 6" - PN 6/PN 10/PN 16/Class 150
Gear Operator :	6" Above - Class 150, 300, 600

Shell	WCB, CF8, CF8M, CF3, CF3M, CF8C, CN7M, CD4MCu, Hastelloy, Inconel, Duplex Stainless Steel
Trim	WCB, CF8, CF8M, CF3, CF3M, CF8C, CN7M, CD4MCu, Hastelloy, Inconel, Duplex Stainless Steel