。 2, when a user independently regulate indoor temperature according to the requirement, self-reliance type flow stem valves, valve after the user demand flow, because self-reliance type flow stem limit valve, flow rate increase will not come; When the valve user requirements after the loss flow, the user will interfere with each other between self-reliance type flow valve stem became useless to only take water pump power valve. So, whether it is still active variable flow on the user's network with hot objects to active variable flow of the heat supply network can be used for flow valve stem. Because flow valve this special construction, flow changes take special section in the nature of the resistance number S value change, network with the change of the total number of special nature of the resistance, the total flow distribution ratio in each section and change accordingly. Install self-reliance type flow valve stem can't think right and use the network variable flow operation standard style. The suitable dynamic hydrodynamic disorders will lead to network, the remote user can not meet the heat demand. So far many heating companies selected frequency, less pump, pump, pump, small pump to achieve variable flow operation, the heat-supply stem self-reliance type flow valve is used in the hydrodynamic equilibrium is not correct. Q: parsing self-reliance type flow valve stem uncomfortable in variable flow operation standard style comprised a: self-reliance type flow stem valve can only be suitable for use in the constant flow of quality regulate system uncomfortable comprised of variable flow operation standard style: 1, will produce a dynamic state hydraulic disorder. Near end users and remote users can not Marine valve geometric changes with changes in traffic. When the system is implemented by hot objects to active variable flow control, or who, after other reduce hand-eye system flow, pipe network pressure will decrease, heat supply network because of the pressure decreases, the proximal users self-reliance type semi-automatic valve core flow stem valve will open, keeping the original flow fixed eternal. Flow changes only remote user flow changes. 3, demand of circulating water flow rate increase will not come up. Self-reliance type flow valve stem is only suitable for use in the constant flow of quality control system. Circulating water pump room according to diagnosis syndrome reduced, increased demand cycle of water, the user flow for self-reliance type flow stem stem valves, using flow increase will not come up. 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 valve, safety Industrial Valves, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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have three basic components.
need fuel for energy,while os gate valve do not.