Seated butterfly valves
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AWWA Standard
webstore.ansi.orgButterfly valves are generally used for pipelines carrying liquids and gases. Manufacturers of butterfly valves developed tight-closing, rubber-seated types for cooling water systems and power stations. Since 1940, most new valves installed for this type of service have been rubber-seated butterfly valves.
PIPING MATERIAL CLASS DESCRIPTION - Washington
fortress.wa.govTapped lugged wafer type (e.g., butterfly, check, etc.) valves have been specified for dead end application, and when fitted between cast iron or non-metallic flanges. Unlined soft seated butterfly valves and plug valves, if required to be “Fire Safe” shall be in accordance with API 607. Typical gear operated valve sizes: Gate Valves
KEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY …
www.emerson.comKEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY VALVES GRW/GRL NOTES Valves with super duplex disc will have super duplex disc screw. All other discs will have a duplex disc screw. MATERIAL SPECIFICATION - REINFORCED SEAT Part name Material Material specification Remark DN 350 - 600 (NPS 14 - 24) Body Ductile iron ASTM A536 Gr 65-45-12
KEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY …
www.emerson.comKEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY VALVES GRW/GRL (ISO) MATERIAL SPECIFICATION Part name Material Designation EN/DIN mat.no Remark DN 350-900 Body Ductile iron GJS-400-15 EN JS-1030 Dual certified to ASTM A536-65-45-12 Ductile iron GJS-400-18LT EN 5.3103 Dual certified to ASTM A395-60-40-18 Carbon steel* GP240GH EN …
PRODUCT SPECIFICATIONS FOR PRODUCTS AND MATERIALS …
www.wsaa.asn.auGate Valves, Metal Seated for Pressure Applications – Water Supply and Sewerage . WSA PS – 262 Extension Spindles for Gate Valves WSA PS – 263 Butterfly Valves for Pressure Applications – Water Supply WSA PS – 264 : Non-Return …
STANDARD SEWER AND WATER MAIN SPECIFICATIONS
www.nyc.gov20.03 Standard Specifications For Butterfly Valves 24-Inch To 72-Inch II-3 With Manual Actuators (Section 2.03) 20.04 Standard Specifications For Pressure Reducing Valves 8-Inch II-3 Through 30-Inch Nominal Pipe Size (Section 2.04) 20.05 Standard Specifications For Resilient-Seated 3-Inch Through 20-Inch II-3