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Butterfly Valve

Bray Controls offers our high quality, high pressure resilient-seated butterfly valves to meet the requirements of today’s industrial/marine markets. This valve is specifically designed for onshore and offshore fire protection where the applicable certification is D.O.T. 54 (UK Department of Trade). The series 31U is designed to withstand high line velocities and pressure.

Category:

Size                                   :   2″ – 12″ (50mm – 300mm)

Rating                             :   PN10 – PN16 / ASME Class 125 – Class 150

Working Pressure   :   285 psi (20 Bar)

Body Style                    :   Lug

Material                         :   Ductile Iron, Carbon Steel, Nickel Aluminum Bronze

Temperature               :   0°F – 212°F (-18°C to 100°C)

Manufacturer             :   BRAY, TOMOE, OMB, Other Request

» Electric and pneumatic actuators mount directly to the S31U, with no brackets required

» Non-corrosive heavy duty acetal bushing absorbs actuator side thrust

» Patented stem retaining ring and C-rings prevent unintentional removal of the stem during field service

» Bray’s bonded tongue and groove resilient seat design offers lower torque

» These seals prevent line media from coming in contact with the stem or body

» Extended neck length allows for piping insulation and is easily accessible for mounting operators

» One piece lugged style flange configuration, with a choice of Polyester Coated Ductile Iron/Carbon Steel or uncoated Nickel Aluminum Bronze

» High Strength upper and lower stem incorporate a close tolerance double ‘D’ disk drive connection

» Casting is spherically machined and hand polished to provide bubble-tight shutoff with minimum torque and an extended seat life