manual air damper butterfly valve

manual air damper butterfly valve   Product Description Description butterfly valve is made of high quality carbon steel welding, suitable for low temperature, low  pressure fluid pipelines corrosion process, can effectively adjust the pipe flow. Valve production  standards comply with tianjin cement industry design and research of the cement industry design  manual ". In building material, glass, mining, power, light industry and papermaking departments  of ventilation, environmental protection projects in the pipeline system. TPO butterfly valve, USES  the fine steel welding. With light weight, reasonable structure, wear resistance, small flow resistance loss,flexible  operation, indicates a clear orientation, convenient maintenance, long service life, etc. Can achieve  arbitrary Angle. With a manual pull rod, switch easily, adjusted valve opening, is an ideal  equipment to control flow.   Technical Parameter nominal diameter (DN): 50 ~ 2000mm
Nominal pressure PN (Mpa): 0.05 0.25 0.6
Test pressure/strength test: 0.075 0.375 0.9
Seal leakage test: 1.5% or less
Applicable medium: gas, dust, gas, flue gas, etc
Suitable temperature: - 10 degree C to 250 degree C
Finished Products       Packaging & Shipping Company Information   FAQ 1. Are you a manufacturer or trader?
We are a professional manufacturer.
2. What is your MOQ?
1 piece
3.  Can I get some samples?
Yes, Sample order is available for quality check and market test .But you have to pay the express cost.
4.  What’s delivery time?
It usually takes about 3-5 working days for small order and 10-15 days for big order.
5. Where is your loading port?
Tianjin Port , China, but any other ports are also acceptable
6.  What’s your payment terms?
We usually accept all kinds of payment terms .Such as T/T,L/C, Western Union.Cash.
7.  What’s your warranty terms?
We offer 12 months warranty time.
8.  Do you have the products in stock?
Depends on your request ,We have standard models in stock. Some special products and big order will be newly produced according to your order. Our Services 1. Your inquiry will be replied within 24hours
2. Well-trained and experienced staffs to answer all your inquiries.
3. All our products have 1-year warranties.
4. Competitive prices based on same quality.
5. Guarantee samples quality same as mass production quality.