Seat-On-Body Butterfly Valves

Specifications

Size Range
3"-36"
Operating Pressure
150B – 150 PSI; 250B – 250 PSI
Disc Seating Edge
ASTM A276 T316SS
Seat Materials
EPDM
Design/Test Standard
AWWA C504
Certifications
NSF 61, NSF 372
Exterior Fasteners
T316SS
Actuation
Traveling Nut, Worm Gear, Electric, Hydraulic, Pneumatic, Lever
Temperature Range
0°-250°F
Body Materials
ASTM A536 65-45-12 Ductile Iron
Disc Materials
ASTM A536 65-45-12 Ductile Iron (4"-36"), T316SS (3")
Shaft Materials
150B - ASTM A276 T316, 250B - ASTM A564 T630 (17-4)
Body Style
FLG 3"-36" MJ 4"-36"
Flange Drilling
FLG – ANSI B16.1 Class 125 & 250, MJ – ANSI/AWWA C111/A21.11

Butterfly valves come standard with an integrally cast actuator mounting pad; machined and drilled in accordance with ISO-5211 and MSS SP-101.
Our butterfly valves utilize stainless steel shafts to resist corrosion and ensure long valve, bearing, and packing life. 316SS is the standard shaft material for CL 150B, while 630SS (17-4) stainless steel is utilized for CL 250B.
Our fully rubber-lined bodies for 3”-24” valves eliminates the need for inner body coating and effectively prevent abrasion from particulate in the media.
Our disc-to-shaft pinning connections are built in accordance with AWWA C504. We utilize a 630SS (17-4) pin that is held in place with stainless steel nuts, creating a strong and reliable connection. This ensures that our customers will get many years of dependable, backlash-free service from their valve.
PTFE-lined fiberglass bearings are designed to provide low friction and long life, reducing the required maintenance and requiring no lubrication.