Ceramic double disc gate valve

Description
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Ceramic double disc gate valve

Specification:

Type	Ceramic Double Disc Valves
Size	DN25-DN400(1”-16”)
Pressure Rating	PN10,PN16,PN25,PN40, CL150, CL300
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

Features:

Product type

The Ceramic Double Disc Gate Valve is ceramics-to-ceramics sealing, also named as parallel double disc valve, or ceramic double disc valve or ceramic double gate valve.

The standard end connection of ceramic double disc valves is flanged type, but if the installation space is limited, wafer type is available.

Three piece bodies of Ceramic Double Disc Gate Valves are very easy for assemble and reliable for maintenance.

Self-cleaning disc design allows disc 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 conditions like economizer valves in coal fired power plant, the working temperature may be up to 450 ℃. Then special design of ceramics and packing material will be considered.

Detailed information about working temperature of our Ceramic Double Disc Valves, please contact us at sales@fuvalve.com.

Normal working temperature of Ceramic Double Disc Valves: -29 °C ~ +200 °C

High temperature design of Ceramic Double Disc Gate Valves: -29 °C ~ +450 °C

Valve tightness

The tightness of valve is very important. FUVALVE has advanced ceramic processing technology and skilled technicians. All ceramic sealing faces of the Ceramic Double Disc Gate Valves are well ground and polished, which ensure Class V leakage as per FCI 70-2.

Other tightness rates upon request.

FUVALVE Ceramic Double Disc Gate Valves have much longer service life than the other similar products.

Design standards

Valve body ASME B16.34

Face-to-Face: Manufacturer’s Standard, customized length of Ceramic Double Disc Valves is available.

Valve Testing: API 598

The structure of FUVALVE Ceramic Double Disc Gate Valve is as the following exploded drawing.

No.	Part Name	Material
1	Pneumatic Cylinder	Aluminum	Aluminum
2a	Bolt	AISI 1045	F304
2b	Nut	A194 2H	A194 8
3	Packing Gland	WCB	CF8
4	Packing	Graphite	Graphite
5	Body	WCB	CF8
6	Disc Driver	WCB	CF8
7	Spring	60Si2Mn	17-7PH
8	Disc Adjusting Block	AISI 1045	F304
9	Disc	A105	F304
10	Disc Sealing Ring	Ceramics	Ceramics
11	Seat	Ceramics	Ceramics
12a	Body Bolt	A193 B7	A193 B8
12b	Body Nut	A194 2H	A194 8
13	Gland Bolt	A193 B7	A193 B8
13b	Gland Nut	A194 2H	A194 8

Typical Applications:

In many bulk material handling systems, such as coal fired power plant, steel plant, cereals transport system, cement transport systems, etc., generally in these applications, pneumatic conveying method is used to reduce manpower demand, and improve system efficiency and reliability. But abrasion of valves is a big problem that causes customers a lot trouble.

The valve sealing surface and flow path of these valves are destroyed seriously by high speed solid materials. FUVALVE develops Ceramic Double Disc Valves for these applications which works quite well for coal fired power plants all over the world.

Ceramic Double Disc Valves are suitable for any bulk materials handling system including the mediums listed as below: Silicon Powder,Alumina Powder,Coal Powder,Cement,Lime Stone Powder,Magnesium Powder,Quartz Sand,Metallurgical dust,Ores,Fly Ash,Granules.