。 4. The function of the valve should be paid attention to when choosing the valve open normally closed, still as usual semi-automatic close open, manual close to open, manual reset and signal output, long stem. 1. Fire damper to choose main stem for parameter specification, etc. Heat sensitive components should be fire department of licensing standards. Q: a: fire Industrial Valves selection requirements fire valve, normally open, 70 ℃ or 280 ℃ closed, general installed in the duct through the firewall, fires off the utility, you can set the output electric signal, temperature over 70 ℃ or 280 ℃ when the valve closed, linkage to send ( Fill) The wind trigger Marine valve closed. 5. If the valve and fan gang should be chosen with double micro switch device. The thickness of the exterior of the valve can not less than 2 mm. 3. Fire damper is suitable for use in ventilation, air conditioning, a line or exhaust system, basic function and is suitable for use scope. 2. Fire damper is suitable for use in ventilation and air conditioning system, in addition to the public building in heaven oil discharge YanZi system with fire damper, operating temperature is 150 ℃, the common ventilation and air conditioning system with fire valve action temperature is 70 ℃. 6. Body blade should be steel plate, thickness of 2 ~ 6 mm, body of non-combustible material manufacturing, rotating device shall be deemed appropriate in the corrosion resistance of metal materials, and flexible rotation. 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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