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Ceramic Rotating Double Dsic Valves

Brand : FOYO

Product origin : XIAMEN

Delivery time : 40 DAYS

Supply capacity : 200 PCS

ceramic rotating double disc valves have been widely used In many bulk material handling systems, such as coal fired power plant, steel plant, cereals transport system, cement transport systems, and so on.

Specification:

Type

Ceramic Rotating Double Disc Valves

Size

DN25-DN400(1鈥?16鈥?

Pressure Rating

PN10, PN16, PN25, PN40, CL150, CL300, and CL600 are also available per customer鈥檚 requirement.

Body Material

WCB, CF8

Trim Material

WCB+Al2O3 Ceramics, WCB+ZrO2 Ceramics, WCB+Solid Tungsten Carbide, WCB+Stellite

End Connection

Flanged type, Wafer Type, EN1092-1, DIN 2501, ASME B16.5


Typical Applications:

Same to ceramic double disc valves,  ceramic rotating double disc valves have been widely used in many bulk material handling systems, such as coal fired power plant, steel plant, cereals transport system, cement transport systems, and so on.  Generally in these applications, pneumatic conveying method is used to reduce manpower demand, and improve system efficiency and reliability. Because there is huge abrasion for this system, sealing surface and flow path of valves are destroyed seriously by high speed solid materials. Foyo develops  ceramic rotating double disc valves for these severe applications which work quite well in many coal fired power plants all over the world.
 ceramic rotating double disc valves are suitable for any bulk materials handling system including the mediums listed as below:  
飦琒ilicon Powder
飦珹lumina Powder 
飦珻oal Powder
飦珻ement
飦琇ime Stone Powder
飦琈agnesium Powder
飦琎uartz Sand
飦琈etallurgical dust
飦琌res
飦現ly Ash
飦珿ranules
If your working service is not listed above and you are not sure if Foyo ceramic rotating disc valve is suitable for your systems, please feel free to contact Foyo鈥檚 experienced engineer for professional proposals.


Design Features:

Product type


The ceramic rotating disc valve is ceramics-to-ceramics sealing and parallel double discs. However if it鈥檚 used as a gravity discharge valve, single disc design is much better than double disc design. By applying double disc valve design for this valve, when valve is shut off, bulk material will drop into tank because of its gravity and will not accumulate in the valve body. Thus  ceramic rotating double disc valves will never been blocked.
The standard end connection of ceramic rotating disc valve is flanged type, but if installation space is limited, wafer type body is available. Foyo can provide any end connection per customers鈥?requirement.
Self-cleaning disc design allows the discs to move freely and avoid being scratched by solid particles. 

Temperature range
Usually working temperature of pneumatic conveying system is not so high, but under some special conditions like economizer valves in coal fired power plant, working temperature may be up to 450 鈩? Then special design of ceramics and packing material will be considered.
Detailed information about working temperature of our  ceramic rotating double disc valves, please contact us at sales@foyovalve.com. 
Normal working temperature of  ceramic rotating double disc valves:  -29 掳C ~ +200 掳C
High temperature design of  ceramic rotating double disc valves: -29 掳C ~ +450 掳C

Valve tightness
The tightness of ceramic rotating disc valve is very important. Foyo has advanced ceramic processing technology and skilled technicians, all ceramic sealing faces of  ceramic rotating double disc valves are well ground and polished, which ensure Class V leakage as per FCI 70-2.
Other tightness rates upon request.
Foyo  ceramic rotating double disc valves have much longer service life than other similar products.

Design standards
Valve body  ASME B16.34
Face-to-Face: Manufacturer鈥檚 Standard, customized length of  ceramic rotating double disc valves is available.
Valve Testing as per API 598


The structure of FOYO ceramic rotating double disc valve is as the following exploded drawing.

Ceramic Rotating double Disc Valves


No.

Part Name

Material

1

Pneumatic Cylinder

Aluminum

Aluminum

2

Body

WCB

CF8

3

Stem

17-4PH

17-4PH

4

Swing Arm

WCB

CF8

5

Disc

WCB+Ceramics

CF8+Ceramics

6

Seat

Ceramics

Ceramics

7

Adapter

WCB

CF8

8

Yoke

AISI 1020

SS304

9

Driving Arm

WCB

CF8


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