Seat-On-Disc Butterfly Valve
Specifications
- Size Range
3”-72” - Temperature Range
0º-250ºF - Operating Pressure
150B – 150 PSI; 250B – 250 PSI - Body Materials
ASTM A536 65-45-12 Ductile Iron - Body Seat Material
ASTM A276 T316SS - Disc Materials
ASTM A536 65-45-12 Ductile Iron - Seat Materials
EPDM - Shaft Materials
150B - ASTM A276 T304, 250B - ASTM A564 T630 (17-4) - Body Style
FLG (3”-72”) MJ (4”-48”) FLGxMJ (6”, 8", 12", 16”) - Design/Test Standard
AWWA C504 - Flange Drilling
FLG – ANSI B16.1 Class 125 & 250 MJ – ANSI/AWWA C111/A21.11 - Certifications
NSF 61, NSF 372 - Face to Face
AWWA C504 - Exterior Fasteners
18-8 Stainless Steel - Actuation
Traveling Nut, Worm Gear, Electric, Hydraulic, Pneumatic, Lever
Features & Benefits
- Butterfly Valves come standard with an integrally cast actuator mounting pad, machined and drilled in accordance with ISO-5211 and MSS SP-101. This allows for direct mounting of manual and automated actuators without the need of additional pieces or adapters, providing a more compact and rigid arrangement.
- Stainless steel meets or exceeds AWWA C504: Class 150B – 304 stainless steel Class 250B – 630 stainless steel. Single-piece (3”-12”). Two-piece (14”-72”).
- Butterfly Valve Bodies consist of heavy duty ASTM A536 ductile iron that are designed to meet or exceed AWWA C504.
- EPDM rubber is vulcanized to a 304 stainless steel ring and attached to the vane utilizing self-locking, stainless steel cap screws. The body ring seat is composed of 316 stainless steel, forming an uninterrupted 360-degree seal. Butterfly Valve vane rubber seat ring is easily field replaceable.
- Heavy duty A536 ductile iron meets or exceeds AWWA C504.
- Self-adjusting V-type packing that increases the sealing force with the increase in line pressure. Accessible without dismantling the valve, per AWWA C504.
- Full metal-to-metal contact, vane to shaft connection utilizing a stainless steel torque plug.
- Nylon bearings are sized to meet or exceed the AWWA C504 specification for axial pressure loads. The bearings are self-lubricating and require no maintenance.