G2球阀的简单介绍提供手动、气动、电动等驱动方式 内装式阀杆设计,防止阀杆喷出 进口和出口双向密封功能G2球阀的详细信息主要设计特点-Main Designing Features
· 进口和出口双向密封功能
Seal on up-stream and down-stream sides of valve
· 双阻塞泄放功能
Double block and bleed function
· 凸起的防火唇作为金属辅助密封阀座,符合API 607标准的防火要求
The raised fire-lip acts as metal backup seat meeting API 607 through leakage requirements
· 防静电装置
Anti-static device
· 内装式阀杆设计,防止阀杆喷出。
Anti-blow out stem is a backseated design.
· 2组O型密封圈,可有效防止泄漏
Two set of O-ring seals efficiently prevent leakage
· 密封剂注入器设计,可在紧急状态下注入密封胶,对阀杆或阀座进行密封
Sealant injection fittings for emergency stem or seat sealing
· 可选择的操作:提供手动、气动、电动等驱动方式
A wide choice of handle, gear, electrical, pneumatic or hydraulic operators can be supplied.
· 可选择的锁定装置
Optional locking device
· 符合NACE规范要求
All ball valves can be supplied in full compliance with NACE MR0175 Standard.
· 带波形、碟形、或圆柱螺旋形弹簧的浮动阀座设计
A floating seat with wave / disc / cylindrical spring design is provided.
·低压时阀座在弹簧预紧力的作用下,保证球与阀座间的低压密封
The preload of spring ensures bubble-tight sealing of ball and seat at low pressure.
·高压时阀座唇与球体全面接触,确保阀门的可靠密封性和较低的操作扭矩
At high pressure, the seat lip deflects slightly to ensure full seat-to-ball contact. This results in reliable sealing at high pressure and low operating torque.
主要零件标准材料规范 Standard Material Specification for Main Parts
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