Model Selection Magnetic Valve
1. the applicability
The fluid piping and the selection of the electromagnetic valve model type. must be in the series with The media calibration
Fluid temperature must choose electromagnetic valve is less than the calibration temperature.
Electromagnetic valve is allowed in general 20CST liquid viscosity, more than 20CST should specify below.
The differential pressure pipeline, high-pressure difference in less than 0.04 MPa, when should choose as ZS series, ZQDF, ZCM 2W such e-style and step-by-step direct acting-style, The minimum differential pressure more than 0.04 Mpa, can choose polot (differential) electromagnetic valve, Maximum differential pressure should be less than the maximum pressure electromagnetic valve calibration, General solenoid valves are unidirectional work, therefore should pay attention to whether have the pressure difference, if installation check valves.
When not high cleanness fluid in electromagnetic valve should be installed ahead of solenoid valve, filter medium. The cleanliness requirement
Note flow aperture and specifications, Electromagnetic valve is generally only two control switch, Please install by-pass pipe condition allows, easy maintenance, When the water hammer to customize the adjust of electromagnetic valve opening and closing time.
Attention to environmental temperature of solenoid valve
The source current and power consumption should be selected according to the output voltage, capacity, generally allow ± 10% must pay attention to the exchange value high starting VA.
2 and reliability
Electromagnetic valve is closed and often open is divided into 2 kinds, Generally, closed type selection, electricity shut; open But in the open time is very long closed very short to choose to often open type.
Life test, the factory to type testing projects, China has not exact electromagnetic valve, so choose professional standards of solenoid valve manufacturer carefully when.
Action for a short time when selecting higher frequencies generally e-style, large diameter chooses rapid series.
3, safety
Generally, the electromagnetic valve does not waterproof when conditions are allowed in the factory, please choose waterproof model can be customized.
Electromagnetic valve is the highest calibration nominal pressure must be more than the maximum pressure pipeline, otherwise will shorten life or other unexpected situation.
Corrosive liquid should choose stainless steel, strong corrosive fluid appropriate chooses the king SLF (plastic solenoid valve).
Explosive environment must choose corresponding flameproof products.
4 . economy
There are many electromagnetic valve can be used, but in the above three can satisfy the economy based on the product should be chosen.
