33 12 16.26 - 001-A - Butterfly Valves - Garney Construction

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401 S. Highland Avenue Aurora, Illinois 60506 P 630-844-4000 F 630-844-4160 www.henrypratt.com Specifications for 150B pressure class Butterfly Valves 24” and Larger Tag numbers: OPS-PL-BFV1, OPS-PL-BFV2, OPS-PL-BFV3, BFV4, BFV5 General All butterfly valves are tight closing, rubber seated type and fully comply with the latest revision of AWWA Standard C504/C516 and NSF61, where applicable. Valves are bubble-tight at rated pressures in either direction, and shall be satisfactory for applications involving throttling service and for applications requiring valve actuation after long periods of inactivity. Valve discs rotate 90˚ from the full open position to the tight shut position. Regardless of valve size, angular misposition of disc can be up to 1˚ off center without leakage. Valve Body All valve bodies are cast iron ASTM A126, Class B, narrow body design. Flange drilling is in accordance with ANSI B16.1 standard for cast iron flanges. Body thickness is in strict accordance with AWWA C504. Valve Disc All valve discs are constructed of ductile iron ASTM A536 with a stainless steel seating edge. The disc shall not have any hollow chambers that can entrap water. Disc and shaft connection are made with stainless steel pins. Valve Shaft All shafts are turned, ground, polished and constructed of ASTM A-276 Type 304 stainless steel. Shafts are of two-piece, stub type and keyed for actuator connection. Shaft diameters meet minimum requirements established by the latest revision of AWWA Standard C504 for their class. Valve Seat All seats are constructed of synthetic rubber compound such as Buna N and suitable for bidirectional shutoff at rated pressure. Seats are retained in the valve body by mechanical means without retaining rings, segments, screws or hardware of any kind in the flow stream. Seats are full 360˚ without interruption and have a plurality of grooves mating with a spherical disc edge seating surface. Valve seats are field adjustable around the full 360˚ circumference and replaceable without dismantling the actuator, disc or shaft and without removing the valve from the line. Shaft Seals The shaft seals are self adjusting “V” type chevron packing. Shaft seals are designed to allow replacement without removing the valve shaft. Valve Bearings All butterfly valves are fitted with sleeve-type bearings. Bearings are corrosion resistant and selflubricating. Bearing material is Teflon-lined with a special fiberglass backing. Bearing load do not exceed 1⁄5 of the compressible strength of the bearing or shaft material.
401 S. Highland Avenue Aurora, Illinois 60506 P 630-844-4000 F 630-844-4160 www.henrypratt.com Painting Valve interior and exterior surfaces except for seating shall be coated with two coats of epoxy paint Amercoat 370 in accordance with AWWA C550 and AWWA C504. Coating is NSF-61 approved. Valve Actuator Valve actuators conform to AWWA Standard C504 and are designed to hold the valve in any intermediate position between full open and fully closed without creeping or fluttering. Actuators are equipped with mechanical stop-limiting devices to prevent overtravel of the disc in the open and closed positions. The buried service MDT actuator has a mechanical stop which will withstand and input torque of 450 ft. lbs at extreme actuator position without damage.
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Garney Construction 785 E Warren Ga
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1513188 HP Page 1 of 5 401 South Hi
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PAINT SYSTEM SUMMARY Page 1 of 5 SY
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A Tradition of Excellence With the
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NOT ROTORK SUPPLY X ACTUATOR TERMIN
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PRATT Henry Pratt Company TITLE: OP
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Actuator electrical specification P
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Indication options Indication Optio
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2 Storage 3 Operating your IQ Actua
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33 12 16.26 - 001-A - Butterfly Valves - Garney Construction

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