2. When zero differential pressure or vacuum and high pressure can be action, but power is larger, requirements must be water there is no danger. 。 It is a direct acting and pilot operated the principle of phase conjugation, when the inlet and outlet no pressure difference, after electrify, electromagnetic energy the pilot valve and main valve closed directly to a progressive aspirant, open the valve. When the inlet and outlet Marine valve reaches started working pressure difference, after electrify, electromagnetic energy pilot valve, main valve inferior vena pressure rise, the cavity pressure loss, therefore using differential pressure pushed the main valve aspirant away; Power outages, pilot valve using the spring force or medium pressure push off, move down, to close the valve. The unique place: 1. In a vacuum, negative pressure, can normal office when the zero pressure, but not more than 25 mm size ordinary. Q: direct acting solenoid valve principle and unique place a: principle: electricity, electromagnetic coil initiation electromagnetic energy security barrier closed from the seat, the valve open; Power, the electromagnetic energy away, press on the seat, spring guard barrier closed valve shut off. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief Industrial Valves, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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