What are the common problems with WZI control valves?

Q1: The valve doesn't operate or operates slowly? A1: Check the gas source pressure (0.4 - 0.7 MPa) and the signal line. Q2: The valve oscillates and the control is unstable? A2: R…

Which types of WZI control valves are most recommended for fluid control in chemical pipelines?

1. Sleeve regulating valve (suitable for high pressure difference and clean fluids); 2. Eccentric rotary valve (suitable for media containing particles and prone to crystallization…

What is WZI Control Valve?

WZI Control Valve refers to control valves manufactured by Wuzhong Instrument Co., Ltd. (WZI). WZI is a leading Chinese control valve maker with over 60 years experience. These val…

Why do the WZI control valves need to undergo "automatic calibration (initialization)" on a regular basis?

Regular calibration is carried out to restore the precise correspondence between "signal, pressure and opening". Due to wear of the packing or fatigue of the spring, parameters may…

How to install and debug WZI control valve?

First, check the appearance and the nameplate. Then install the valve body according to the flow direction of the pipeline, ensuring that the air source of the actuator is clean. N…

Wuzhong Intrument Co., Ltd

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Pergunta em destaque

The control valve receives the signal but the valve doesn't move. How to deal with this?

Problem: The positioner receives signal, but the valve has no or little movement. Possible causes: Low/blocked air supply, uncalibrated positioner, over-tight stem packing, stuck v…

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