Manual Balancing Valve
Festures of manual central heating balancing valve
Straight flow structure, low fluid resistance;
Handwheel display the number of opening cycles for easy debugging;
Valve inlet and outlet have self - sealing test port;
Valve disc self-balancing design, open and close is not affected by pipeline pressure, can be closed completely.
Manual Balancing Valve Working Principle
By changing the clearance between the water valvecore and valve seat (opening), adjust Kv valve flow capacity (valve) to change the flow resistance of flow through the valve in order to achieve the purpose of flow adjustment, the role of the object is the resistance of the system, eliminate the resistance unbalance phenomenon in the system, thus to new water allocation proportion according to the design and calculation of balance, each branch in proportion to increase or decrease at the same time.
Manual Balancing Valve Installation and Commissioning
There are two methods of selection. The first is to use the software for calculating positive moisture content. The design flow Q and the design pressure difference ∆P are input to obtain the size and balance pre-set position of the balance valve. In order to obtain better accuracy, it is recommended that the positioning of the balance valve be at 50-90% of the opening degree; Secondly, when the design flow Q is known and the design pressure difference ∆P is known, the Kv value can be calculated by the formula, and then the proper balance valve size and predetermined parameters can be selected from the Kv value table. For specific use, please consult ZECO Valve Group.
Manual Balancing Valve Function Material and Standard
Size Range: 2"~16"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: AMSE B16.10, EN558-1
Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test: ISO 5208 / EN 12226-2
Part Material Standard
Body Ductile Iron EN 1563/DIN 1693
Bonnet CuZn39Pb1 / C37000 EN12167/ASTM B135
Trim CuZn39Pb1 / C37000 EN12167/ASTM B135
Measuring Port CuZn39Pb1 / C37000 EN12167/ASTM B135
O-Ring EPDM / NBR ISO 4633
Handwheel Nylon ISO 4633
For the materials options not listed, consult factory.
ZECO manufactures valves in more than 50 different alloys.
As one of manual balancing valve manufacturers, we have types of related products for sale, if you have needs, please contact us.
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