4 inch Ductile Iron Body Butterfly Valve, Nickel Plated Iron Disc, Buna-N Seal, 10 Position Lever

Description

Butterfly Valve, Type: Precision Built, Nominal Size: 4 inch, Connection Type: Lug, Body Material: Ductile Iron, Disc Material: Nickel Plated Ductile Iron, Seat: Buna-N, Maximum Pressure Rating: 200 psi, Actuation/Operator: 10-Position Lever, Temperature Rating: 10 to 180 Deg F, Dimensions: 12.36 inch L x 11 mm ID x 3.54 inch OD, Standards/Approvals: Conforms to MSS-SP67, MSS-SP25, API-609

Features

• Shaft weather seal
• One-piece thru shaft - Ensures dependability and positive disc positioning
• O-ring - Provides further prevention of stem leakage
• Set-screw - Stabilizes seat to prevent movement, positive dead end service upto 75 psig max through 12 inch
• Smooth finished disc flats - these mates with seal flats to give a high efficient seal; prevents leakage into shaft areas
• Support Shaft Seal - Bonding of elastomer to phenolic backing ring protects against distortion, a common cause of shaft leakage
• Bushings - Furnishes shaft support for positive shaft alignment and actuator support. (4 Bushings)
• Precision Taper Pin - Ensures a positive, vibration proof shaft to disc connection
• Precision Profile Disc - Provides bubble-tight shut-off and assures minimum torque and longer seat life
• Seat Face - Negates need for flange gaskets
• Phenolic Backed Seat - Non-collapsible, stretch resistant, blow-out proof, field replaceable

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