Concentric butterfly valve with vulcanized rubber liner to AWWA C504, NSF61 certified, for drinking water and neutral liquids to max 160°F
Available in Flanged, Wafer, Mechanical Joint, and Mechanical Joint by Flanged end configuration
Double eccentric Butterfly Valve with rubber seal around the disc, AWWA 504, NSF61 certified, for drinking water and neutral liquids to max 160°F.
Available in Flanged, Wafer, Mechanical Joint, and Mechanical Joint by Flanged end configuration
Features
- Fully vulcanized rubber lined valve body: 3″ – 24″
- Low head loss concentric design
- MJMJ and MJFL will accept HDPE DR9 pipe with no need to bevel the pipe
- No seat adjustment necessary
- Ni-Cu welded seat tested to 100,000 cycles
- Hex stem to disc driving system
- Lever actuators available on smaller sizes
Features
- Double eccentric design causes the seal compression to release after just a few degrees of opening reducing operating torque
- Flow-through disc with a stiff, light weight box-design for high flow velocity applications; low sensitivity to cavitation prevents turbulent flow
- Rubber seal around the disc circumference held in place by an SS316 disk ring
- Drinking water approval for all rubber parts in contact with the water
- Shaft in stainless steel
- Anti blow-out shaft design with replaceable O-ring shaft seal and self lubricating bronze/PTFE radial bearings. A replaceable POM disc at the end of the stub shaft serves as thrust bearing
- Shaft ends fully encapsulated in disc and fixed with dowels corrosion protected with O-rings and a stainless steel security plate; a safety key backs up the dowel connection
- Gearbox in IP68 with handwheel and position indicator
- Fasteners in stainless steel A4
- Body and disc of ductile iron coated with blue RAL 5017 fusion bonded epoxy to AWWA C550, GSK, and approved by WRAS-DVGW/W270/UBA