中心中线蝶阀 D343X
产品简介
上海市语言文字水平测试中心中线蝶阀防轴窜出设计,防止外部污垢的进入,润滑支承轴套,阀体直接硫化阀座或有硬背压入阀座.有效密封,小扭距和长寿命设计的阀板,精密加工的不锈钢阀轴.花健设计的阀轴,保证轴板密切配合,减少轴板的泄漏点,大尺寸(DN400以上)尺寸阀门,轴板间有锥型销连接。
产品详细信息
FV20 系列蝶阀 Series FV20 ButterlfyValves
蝶阀 Cv 值 Cv value of Butterfly Valve
流量系数 Cv 值定义 Definition of Cv Value
当阀门全开时,阀两端差压力为1磅/英寸2,流体用600F的清水时,通过阀门的美加仑/分的流量数。
The valve Cv is the flow rate (in US gal/min) of pure water at 600F passing through the valve when
the valve disc is fully opened and the pressure differential between the two ends of the valve is 1 Lbf/in2
V: *大流量(美加仑/分)
G:比重(水=1)
P1: 流入侧压力(磅/英寸2)
P2:流入侧压力(磅/英寸2)
V: Max. Flow (in US gal/min)
G: Specific gravity (1 for water)
P1: Inlet side pressure (Lbf/in2)
P2: Outlet side pressure (Lbf/in2)
Cv= 1.17C 流阻系数与Cv值的换算关系
Conversion of flow resistance coefficient and Cv value
d: 阀门内径或阀座口径in (英寸)
ζ: 流阻系数(无量纲)
d: Valve bore size or valve seat bore sie (in)
ζ: Flow resistance coefficient (no unit)
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蝶阀 Cv 值 Cv value of Butterfly Valve
流量系数 Cv 值定义 Definition of Cv Value
当阀门全开时,阀两端差压力为1磅/英寸2,流体用600F的清水时,通过阀门的美加仑/分的流量数。
The valve Cv is the flow rate (in US gal/min) of pure water at 600F passing through the valve when
the valve disc is fully opened and the pressure differential between the two ends of the valve is 1 Lbf/in2
V: *大流量(美加仑/分)
G:比重(水=1)
P1: 流入侧压力(磅/英寸2)
P2:流入侧压力(磅/英寸2)
V: Max. Flow (in US gal/min)
G: Specific gravity (1 for water)
P1: Inlet side pressure (Lbf/in2)
P2: Outlet side pressure (Lbf/in2)
Cv= 1.17C 流阻系数与Cv值的换算关系
Conversion of flow resistance coefficient and Cv value
d: 阀门内径或阀座口径in (英寸)
ζ: 流阻系数(无量纲)
d: Valve bore size or valve seat bore sie (in)
ζ: Flow resistance coefficient (no unit)
更多上海市语言文字水平测试中心中线蝶阀