Resilient Seated Butterfly Valves

 CIWB/CILB Series - PRODUCT DATA BULLETIN
 CIWB/CILB Series - INSTALLATION, OPERATION AND MAINTENANCE MANUAL

Features

Body:

• High strength ductile iron lugs
• Full rating as standard with one flange removed (lug style only)
• Full rating dead end service (lug style only)

• Phenolic backed elastomers
• Full vacuum service capabilities
• Primary & secondary shaft seals (upper & lower)
• Seats cannot be lipped in on installation
• Non-collapsible
• Flange gaskets are not required
• Superior shaft support at elastomer/disc interface
• Discs are machined to suit the seat flat to provide maximum sealing surfaces with reduced torque & wear
• Eliminates media exposure to shaft journal

• Machined & polished disc edge
• Precision disc flats
• Wide seating surface ensure positive bubble tight seal
• Uniform contact around entire circumference minimizing wear, reducing torque & increasing cycle life

• 3 bushings, non-metallic, low co-efficient of friction, totally isolate the shaft from the body journal
• Positive shaft alignment
• Prevents shaft seizure in the body journals
• Eliminates side loading on actuators
• Reduced bushing torques

• Through shaft design
• Shaft diameters to AWWA CL-75B in sizes 3" to 12"
• Blow out proof shaft, reduces disc deflection

• Interchangeability with all butterfly valves in conformance to industry standards