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Pneumatic Wear-proof Rotating Disc Valve Inlet Valve Balance Valve
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Brand Name:NBSANMINSE
Model Number:SMDF - DNA
Certification:ISO9001
Price:Negotiation
Payment Terms:L/C, T/T, Western Union
Supply Ability:Negotiation
Delivery Time:Negotiation
Company Data
Verified Supplier
Contact Person
Ina Chen
Business Type:
Manufacturer Importer Exporter Trading Company
Officials:
浙江省宁波市奉化区萧王庙街道科程小微企业园1幢303
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
SMDF - DNA Pneumatic Wear - Proof Potating Disc Valve ( Inlet Valve / Balance Valve )
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 |
Company Profile
Ningbo Sanmin Import And Export Co.,Ltd.
NINGBO SANMIN IMPORT & EXPORT CO.,LTD. was established in 2014.Our company is mainly engaged in instrumentation, pneumatic and hydraulic industry accessories and services, has more than 10 series of core products.Focusing on the production of automatic machinery to provide a variety of options, products have a wide range of applications.
Sanmin is an industrial and trade enterprise, has a strict quality control system from material selection, inspection workshop, product testing, production, inspection, packaging design to shipment.At present, the company's trade scale is expanding day by day, the customers spreads over more than 20 countries.
We are strictly abides by Chinese laws and regulations, and has won the trust of customers at home and abroad with good reputation. Welcome to telephone and send E-mail to communication, sincerely cooperate, and seek common development.
Supply Original FESTO,SMC,CKD,NORGEN,MARSH,BELLOFRAM,BELGAS,MUELLER,SBFEC.
NINGBO SANMIN IMPORT AND EXPORT CO.,LTD.
INA CHEN
Whatsapp/wechat: +86 15168536055
Desk phone :+86 0574 88915660
Skype: fhtrust
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