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Specification

Design Code	BS 5351
Valve Size	25 to 200 mm (1” to 8”)
Rating	ANSI 150 and 300
End Connection	Flanged
F/F Dimensions	ANSI B-16.10
Flow Characteristic	Approx. Equal Percent, Linear, On-Off
Body Material	Carbon steel, Stainless steel
Ball Material	Stainless Steel
Seat Ring	PTFE, Carbon Filled Teflon
Ball Ring	CF8M, Alloy Steels
Gasket	PTFE, Graphite Laminate
Gland Packing	PTFE Chevrons, Graphite, Low emission
Actuator Form	Diaphragm, Piston or Electric
Actuator Type	Rotary
Diaphragm	Nitrile / Neoprene (nylon reinforced)
Spring Range	3 – 15 Psig (0.2 – 1.0 Kg/cm2) 6 – 30 Psig (0.4 – 2.0 Kg/cm2)
Air supply	20 – 35 Psig (1.4 – 2.5 Kg/cm2)
Air Connection	1/ 4” or 1/ 2” NPT
Accessories	Valve Positioners - Pneumatic, Electro-Pneumatic, Smart Instruments - Airset, Solenoid Valve, Volume Booster, Airlock, Limit Switches
Features	Top or Side Mounted handwheel, Limit Stops Removable Blind Head, Steam Jacketing etc

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Design Features

• Shearing effect between the ball and seal ensures tight shut-off, even on fibrous slurries.
• The unrestricted, straight through flow design provides high capacity and wide rangeability.
• Precise contouring of the V-notch balls provides a nearly equal percentage characteristic.
• Replaceable ball seal and back up ring for added rigidity.
• Ball machined to a super smooth finish, hard-chrome plated and polished to increase ball seal life.
• High CV to body size ratio.