Wafer Butterfly Valve

Description

Wafer butterfly valves with epoxy coated  ductile iron body are designed to control various media in commercial and industrial applications. Valve mounts between two standard ANSI 125/150, DIN PN10/16 and other international flanges. Seat to flange seal, eliminates the need for flange gaskets. Disc is  precision machined 1.4408 (CF8M) . Two piece stem  and disc design enhances the flow capacity  and reduces turbulence.

Features

• ISO5211 top mounting for manual,  air or electric actuators
• Unique hard / soft seat reduces torque  and  extends seal life
• Ductile iron body with epoxy coating
• 316SS disc with 2-piece stem design enhances flow capacity
• EPDM , NBR (Buna-N) , FPM , PTFE or VMQ seal options
• PTFE graphite reinforced stem bearings
• Pressure rated 16 Bar
• Multi-standard flanged mounting holes
• Optional 10 position locking hand lever

Applications

Wafer body butterfly valves are used to control the flow of water, oils,  air, vacuum and other media compatible with the materials of construction. Valves can be operated with manual, air or electric actuators.

Four seal options are available :

EPDM , NBR (Buna-N), FPM, PTFE,  VMQ

Operation

Direct mount wafer butterfly valves can be  easily fitted with optional manual operator, air  actuator or electric actuator using standard  ISO5211 top mounting. Rotating the square  stem one quarter turn moves the stainless  steel disc and open or closes the valve.  Unique soft seat reduces the torque  required to close the valve and extends the  seal life.

Temperature Range

EPDM: -20 to 120ºC , NBR(Buna-N): -15 to 85ºC , FKM: -15 to 180ºC , VMQ:-30 to 200ºC , PTFE:-20 to 200ºC

Options

• Hand lever with 10 position locking
• Gear Box
• Air Actuators
• Electric Actuators

Construction