Spears® 721311-040

Spears® Butterfly Valve, Standard, 4 in Nominal, 150 psi, 140 deg F, Lever Handle Actuator, PVC Body, 316L Stainless Steel Stem and PTFE Seat Trim, Buna-N Softgoods, Gray, Domestic

Spears® patented butterfly valve design departs from traditional liner-seat type valve to eliminate seat creep, reduce operating torque and provide positive seal-off. Ideally suited for flow control or throttling, this high-performance valve is offered with a full variety of options for greater application versatility in industrial and chemical processing applications. Available in IPS sizes 1-1/2 - 14 in Standard or 1-1/2 - 12 in true lug (factory installed lugs) style.

• Type Standard
• Nominal Size 4 in
• Pressure Rating 150 psi
• Temperature Rating 140 deg F
• Actuator Type Lever Handle
• Body Material PVC
• Trim Material 316L Stainless Steel Stem and PTFE Seat
• Softgoods Material Buna-N
• Color Gray
• Domestic/Import Domestic

• Special off-set disc lifts quickly from seat to reduce wear and reduce operating torque
• Patented limited contact seat design provides free travel, eliminates seat creep, extrusion and wear, field replaceable without full valve disassembly
• Interlocking body and seat prevents wash-out or blow-out
• Fully isolated solid type 316L stainless steel stem
• High efficiency gear operator with cast aluminum housing, polypropylene handwheel and built-In position indicator
• Lug insert style valve has factory installed 316SS or zinc plated steel lug inserts
• Standard valve accepts field-installable lug inserts set option
• True lug design has factory installed zinc plated or 316SS lugs and is specially designed for connection to either side of valve
• Buna-N O-ring