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福斯(Flowserve)固定球阀产品规格书

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加长阀杆 操作部件 接口端形式 防火

加长阀杆 操作部件 接口端形式 防火

VALBART TRUNNION-MOUNTED EXTENDED STEM Valves installed underground or in remote locations can be operated with an optional extended stem. All the drain, vent, and emer- gency sealant connections can be operated using extended connecting pipes firmly attached to the stem protective cover. ACTUATION Hand-operated valves are supplied either with a lever or gear operator. The use of a wrench is limited to valves equal to or smaller than: e4” —Class 150 4" —Class 300 ©3” —Class 600 *3” —Class 900 ®2” —Class 1500 e 1” — Class 2500 Actuated valves can be supplied with: e Electric actuators e Pneumatic actuators e Hydraulic actuators e Gas over oil actuators for ESDV, SDV, BDV, MOV, GOV, and HIPPS services MOUNTING OPERATORS VALVE AUTOMATION CENTER Operator mounting should be made at the Valbart Srl Valve Automation Center before shipment. If the operators will be assembled on site, the mounting will be made before installing the valves in line, following Valbart Srl instructions. Mounting of operators on valves already installed in line is not recommended and will be performed only under the supervision of Valbart Srl. Operator mounting flanges are in accordance with ISO 5211-FF /2" NPT vent valve bleeder Un 7V27 NPT vent/drain plug VENT VALVE AND DRAIN PLUG Each valve 6” and larger is supplied complete with a /2" NPT vent valve located in the upper part of the body and complete with a drain plug located in the lower part of the body. Each valve 6 x 4” and smaller is supplied complete with a /2" NPT vent/drain valve located in the lower part of the body. ENDS Valve ends can be manufactured to several configurations to comply with customer requests, such as: Flanged RF or RTJ to ASME B16.5 up to 24" (MSS SP-44 for 22") and B16.47A for 26” and larger. Other type of flanges are available upon request. Butt-weld ends to ASME B16.25. Others types of weld ends are available upon request. Hub ends for clamped connect- ions are available as per customer specification. FIRE SAFE Valbart trunnion-mounted ball valves are designed and certified Fire Safe to API 6FA, API 607 and 1ISO 10497.