What valves be used in the heat pipe network?

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What valves be used in the heat pipe network?

2019-09-27 11:48:37
The heat pipe network is also called the heating pipe, starting from the boiler room, the direct combustion engine room, the heating center, etc., from the heat source to the heating pipe of the building heat inlet, and the pipe network formed by the plurality of heat pipes.
The shut-off valve shall be installed at the starting point of the main line, trunk line and branch line of the heat network.

The hot water heating network trunk line should be equipped with a segmented valve. The spacing of the sectional valve [ ] should be: conveying trunk, 2000 ~ 3000m; transmission and distribution trunk, 1000 ~ 1500m. Steam thermal network can not install segmented valve. The cross-section valve connecting the main line of the heat source of the multi-heat source heating system and the loop line of the ring pipe network should adopt a two-way sealing valve.

A gate valve on a pipe with a working pressure greater than or equal to 16 MPa and a nominal diameter greater than or equal to 500 mm shall be fitted with a bypass valve. The diameter of the bypass valve can be selected according to the diameter of the valve.


When the heating system has limited water supply capacity and needs to control the pipe water filling flow rate or the steam pipe to start the heating pipe to control the steam volume, the pipeline valve should be equipped with a smaller diameter bypass valve as the control valve.


When the dynamic hydraulic analysis needs to extend the closing time of the main section valve to reduce the pressure transient value, it should be solved by using the main valve parallel bypass valve. The diameter of the bypass valve can be taken as a quarter of the diameter of the main valve. The main valve and the bypass valve should be interlocked. The bypass valve must be in the open state to close the main valve, and the bypass valve can be closed after the main valve is closed.

For valves with a nominal diameter greater than or equal to 500 mm, an electric drive should be used. For valves operated remotely by the monitoring system, the bypass valve should also be powered by an electric drive.

The heat pipe network generally refers to the part of the heat exchanger station outlet to the user's indoor riser. The valves used are as follows:

1 The most common use of the circulation pump outlet of the heat exchange station is the disc valve and the gate valve. The specifications are selected according to the pressure of the heat pipe network.

2 The most commonly used heat exchange station to the user's outdoor is the gate valve and butterfly valve. When adding a flow valve, consider adding a flow valve, and the drain valve [ ] - a small cast iron gate valve.

3. The user's indoor use brass ball valve or brass gate valve generally, need to add drain valve can choose brass ball valve or brass gate valve

4 Pressure gauges and thermometers or sensors used in the sensor are generally included, according to the matching.

Among them, the butterfly valve in the pipe network has centerline butterfly valve (soft seal seat butterfly valve), high performance butterfly valve and triple eccentric butterfly valve.

If you have a need to purchase valves, please contact RKSfluid.

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