The nomogram using of Digital lock balance valve

    Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical power transmission products in China.

    Our product range also covers locking assemblies (clamping elements/locking device), taper bushes, QD bushes, bolt-on hubs, torque limiters, shaft collars, motor bases and motor slides, chain detachers, chain guides, universal joint, rod ends and yokes.

    china manufacturer of bush&hub,Specialist in:taper bushes,qd bushes,Split taper bushings,weld on hubs,Steel hubs,Taper Bore adapters.

Digital lock balance valve using the nomogram

According to the formula of KV=Q/, Q-m3/h, △ P-100kpa (1kgf/cm2)

1 cases of known flow Q and △ P, diameter and opening,Q=20m3/h, △ P=30kpa

On the Q axis and a P axis were found its values, and thenconnected to a node, and the KV axis, which makes the horizontal line, and DN50, DN65, DN80 opening than intersection, opening are respectively 74%, 46%, 20%, balance valve can be in the above three caliber an optional (see Figure 1)

Fluid Couplings

2 cases of known flow Q, diameter and opening pressure difference, determine the consumption of △ P, Q=25 m3/h, DN65,opening of 90%

By DN65 of 90% opening for the horizontal line and the KV axis, Q axis is connected with the intersection of 25m3/h point, andextended to △ P and △ P=8.0Kpa axis, namely (see Figure 2)

3 cases of known △ P, diameter and opening degree, determine the flow of △ P=35kpa, DN32, opening of 80%

Degree is provided as a horizontal line 80% of DN32, from the KV axis, connected to the intersection with △ P axis of the 35Kpa point,and then extended to the Q axis, the flow rate of 7.4 m3/h