适用于闭式循环系统中，冷冻水和低温热水的的控制
材质：铸铁阀芯：≤DN40铬镍钢/黄铜 ≥DN50 铬镍钢/青铜承压：PN10连接：法兰低温：-10°C高温：150°C阀杆行程：≤DN80：20mm ≥DN100：40mm
型号概览：(VVF31...)
公称直径mm
Kvs流量系数[m3/h]
△Pmax
△Ps
VVF31.15-2.5VVF31.15-4
15
2.54
300
1000
VVF31.24VVF31.25-6.3VVF31.25VVF31.25-10
25
56.37.510
VVF31.39VVF31.40VVF31.40-25
40
121925
525
775
VVF31.50VVF31.50-40
50
3140
325
475
VVF31.65VVF31.65-63
65
4963
175
275
750
VVF31.80VVF31.80-100
80
78100
100
500
VVF31.90VVF31.100-160
124160
200
VVF31.91VVF31.125-250
125
200250
150
VVF31.92-300VVF31.150-315
300315
△Pmax阀门最大允许压差；△Ps阀门关闭压差
