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Home ProductsPneumatic Pulse ValveCement Plant / Power Station Double Disc Valve Excellent Wear Resistant
Cement Plant / Power Station Double Disc Valve Excellent Wear Resistant
Cement Plant / Power Station Double Disc Valve Excellent Wear Resistant
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Cement Plant / Power Station Double Disc Valve Excellent Wear Resistant

Minimum Order Quantity : 20 Price : Negotiation
Packaging Details : Plastic Bags , Boxes , Carton , Pallet or As Customer Advice Delivery Time : Negotiation
Payment Terms : L/C, T/T, Western Union Supply Ability : Negotiation
Place of Origin: NINGBO Brand Name: NBSANMINSE
Certification: SIO9001 Model Number: SMDF-E

Detail Information
Nominal Pressure: 1.0 ( MPa ) Type: Outlet Let
Temperature: ≤200℃ Max Test Press: 1.5 ( MPa )
DN: 50 , 65 , 80 , 100 , 125 , 150 , 175 , 200 , 225 , 250 Valve Body: Cast Iron
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Product Description

Cement Plant / Power Station Double Disc Valve Excellent Wear Resistant

 

Production information                                                                                                                             

 

Rotating disc valve employs ceramic or hard metal friction pair structure , which makes it more abrasive and better tightness . It just needs a small starting load because the unique structure . Besides , ashes hardly accumulate in the valve body due to the same reason . All these features make the rotating disc valve durable .

 

Operating Principle                                                                                                                                   

 

The actuator moves the stem and lever arm a quarter turn which drives the disc . The entire sealing surface of the disc is constantly in contact with the seat or pad through force exerted by coiled springs . These springs allow the disc to move vertically . This compensates for thermal expansion and contraction of the valves components also overcoming the effect of any back pressure for which it was designed and between the sealing surfaces . Differences in tangential disc to seat friction forces cause the disc to rotate on its seat as the valve cycles , thereby shearing and wiping away any process material that may accumulate . All these features make the rotating disc valve durable . It will provide reliable support for your system .

 

Applications                                                                                                                                                

 

. The rotating disc valve can be used in ash conveying system in thermal power plants. It also can be applied in mine , cement plant , lime work , metallurgic plant , chemical factory and other fields that need to convey caustic or abrasive ash .

 

Technical Parameters                                                                                                                                   

 

. Maximum operating pressure: 1.0 MPA

. Maximum test pressure: 1.5 MPA

. Operating temperature: ≤ 200℃

. Leakage test pressure: 1.1 MPA

 

Installation                                                                                                                                                     

 

1. Prior to installation , please read this manual carefully , and check the pneumatic actuator’s condition .

2. Ensure the flange’s dimension , maximum operating pressure and inside nominal diameter meet the requirements .

3. Do not adjust the bolts and nuts . And make sure the center of two pipelines and valve center are coaxial . Flange surface should be smooth and keep horizontal without relatively large slope , for make sure the valve can fasten and work well . Besides , the bolts should be symmetrically fastened .

4. After installation , pump air into the two air intakes of the pneumatic actuator , and make sure the valve plate work properly .

5. If the control switch is installed , ensure its parameters can meet the external power source and it can work properly in fully open or fully close .

 

 

Troubleshooting Method

 

Troubles Cause Troubleshooting Method
Leakage Foreign body Remove foreign body
Seal washer is invalid Replace seal washer
Valve core abrasion Replace valve core
Valve cannot open or close Rotatable parts become flexible or invalid Adjust or replace the relative parts
Insufficient pressure or leakage Check and repair supply air line
Pneumatic components become ageing or invalid Replace the relative pneumatic components

 

 

Installation dimension and outline

 

DN H D K d n-C
150*150 310 285 240 210 8-Φ22
200*200 310 340 295 265 8-Φ22
225*225 310 370 325 295 8-Φ22
250*250 330 395 350 320 12-Φ22
300*300 330 445 400 368 12-Φ22
200*350 310 520 470 265 8-Φ22

 

 
Main Components and materials
 
NO. Item Material NO. Item Material
1 Upper valve body Ductile cast iron 5 Under valve body Ductile cast iron
2 Seal ring Ceramic or alloy 6 Rotating shaft 45# Steel
3 Valve plate Ceramic or alloy 7 Rotary arm Ductile cast iron
4 Swing arm Ductile cast iron 8 Pneumatic actuator Aluminum

 

Cement Plant / Power Station Double Disc Valve Excellent Wear Resistant 0

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