Tag Archives: Propane Control Valve

I. Security: pay attention to safety will lead to disaster!

1 aggressive media: the king should use plastic and stainless steel solenoid valve.net/”>valves; for strong corrosive media isolation diaphragm must be used. Patients with CD-F.Z3CF. Neutral medium, but also should use copper alloy for the valve housing materials, electromagnetic valve, otherwise the valve shell debris often rust off, especially where the action is not frequent. Ammonia can not be used with copper valve.

2 explosive environments: the product must use the appropriate level of proof, open-air installation or dust should be used in many occasions, waterproof, dust-proof varieties.

3 solenoid valve should be more than Nominal maximum working pressure of the pipe.

Two Applicability: Not applicable fee equal pay for things, but also trouble!

1, the media properties

1.1 quality of gas, liquid or mixed states, which use different varieties of solenoid valves, for example ZQDF for air, ZQDF-Y for liquid, ZQDF-2 (or -3) for steam, or easily cause malfunction. ZDF series multi-function solenoid valve may be all in the gas, liquid. When told that the media provide the best state of the installation the user will not have to re-tuning.

1.2 medium temperature products with different specifications, otherwise the coil will burn, seals aging, seriously affect the life of life.

1.3 medium viscosity, usually 50cSt below. If more than this value, diameter greater than 15mm solenoid valve with ZDF series multi-function for special orders. Diameter less than 15mm solenoid valve provides a high viscosity.

1.4 media cleanliness is not high before the solenoid valve should be fitted with recoil filter valve, low pressure style can be used direct-acting solenoid valve diaphragm for example, CD-P.

1.5 If the directional flow of media, and are not allowed back in ZDF-N and ZQDF-N single two-way flow required, please make a special request.

1.6 medium temperature should be chosen in the solenoid valve allows the range.

2, pipe parameters

2.1 According to the media flow requirements and pipe connection valve openings and model selection. For example, two pipes for a pipeline to the switch, the small diameter of the election CA5 and Z3F, medium or large diameter select ZDF-Z1 / 2. Another example is the convergence of the two pipelines controls, select ZDF-Z2 / 1 and so on.

2.2 In accordance with the value of the selected flow rate and valve Kv DN, also available with pipe diameter. Please note that some manufacturers are not marked with Kv values, often less than the interface valve hole size diameter, must not seek the lowest and the villain.

2.3 Working pressure above the minimum working pressure is used in 0.04Mpa indirect Pilot; minimum working pressure must be close to or less than zero, or use direct-acting direct-type step.