Zhejiang Baolun central air conditioner two-way three-way proportional integral electric control valve two-way two-way valve manufacturer installation

Zhejiang Baolun Valve Co
, Ltd
specializes in the production of central air conditioning electric control valve control valve
Key points: 1
It is used for hot water, cold water and low-pressure steam
2
Medium temperature: 1-10 ℃ to 180 ℃
3
0
03 of the leakage Kv value
4
Pressure range: 16bar
5
Diameter: dn15-500
5
The flow coefficient Kv value is 10-360
6
Connection method: screw port and flange
7
Pressure: PN16
8
Valve body material: brass, ductile iron, cast steel

Key points for installation of electric control valve:
1
The installation position, height and inlet / outlet direction of the valve must conform to the outlet direction; According to the design requirements, the connection shall be firm and tight

2
The valve can be connected with the pipeline in various forms
The main connection methods of Zui include thread, flange and welding connection
During flange connection, if the temperature exceeds 350 ℃, due to creep relaxation of bolts, flanges and gaskets, high temperature resistant bolt materials shall be selected

3
The valve must be visually inspected before installation
The nameplate of the valve shall comply with the provisions of the current national standard gb12220 general valve marks
For valves whose working pressure is greater than 1
0MPa and which have cut-off effect on the main pipe, strength and tightness tests shall be carried out, and they can be used only after passing the tests
Other valves may not be tested separately, but shall be inspected in the system test ya

4
During the strength test, the test pressure shall be 1
5 times of the nominal pressure, and the duration shall not be less than 5min
The shell and packing of the valve shall be free of leakage

5
During the tightness test, the test pressure shall be 1
1 times of the nominal pressure; The test pressure shall remain unchanged for the duration of the test
The time shall comply with the provisions of Table 2
It is qualified if there is no leakage on the sealing surface of the valve disc

⒍ nominal diameter: dn15~500