Henan, China
Business Type:
Manufacturer/Factory & Trading Company
Main Products:
Year of Establishment:
Plant Area:
11455.72 square meters
Management System Certification:
ISO9001:2008, ISO14001:2004, OHSAS18001:2007
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workdays
OEM/ODM Service
Sample Available

Y Globe Valve, Angle Globe Valve, Angle Control Valve manufacturer / supplier in China, offering Electric Angle Type Needle Valves for Alumina Digestion Flash Tanks, Dn200 (8 inch) Pneumatic Ceramic Lined Rotary Gate Valve for Ash Handling System, Knife Gate Valve and so on.

Gold Member Since 2017
Audited Supplier
Supplier Homepage Products Others Electric Angle Type Needle Valves for Alumina Digestion Flash Tanks

Electric Angle Type Needle Valves for Alumina Digestion Flash Tanks

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $150-1,000/ Piece
Port: Shanghai, China
Production Capacity: 150PCS/Month
Payment Terms: L/C, T/T
Temperature: Ordinary Temperature
Certification: CE, ISO9001
Media: Erosive Solid-Liquid-Gas 3-Phase Medium
Standard: Standard
Connection Mode: Flange
Power: Electric

You Might Also Like


Basic Info

Model NO.
Single Seater
Design Standard
GB/T 12235.
Transport Package
Polywood Case
DN50 to DN400
Zhengzhou China
HS Code
High temperature, pressure tube digestion technology is widely used for alumina refining In the tube, turbulence of bauxite slurry flow allows for efficient heat transfer and short digestion time Hard to dissolve diasporic bauxite requires 9  pre-heating stages followed by 8 flashing stages before discharging in the dilution tank.Electric AngleType Needle Valves  are designed especially for Alumina Digestion Flash Tanks.

Valve operating conditions is the following :

Installation position: between flash tanks in pressure digestion Function:

Control fluid pressure and flow rate
T = 140ºC - 280ºC and P = PN4.0MPa  - 160MPa       

Process fluid: slurry, aluminate solution, Na2O 220 g/l   
erosive solid-liquid-gas 3-phase medium

Flow rate = 285 m3/h - 3503/h and Density = 1500kg/m3

Pressure drop: △P = 2.6 - 0.18MPa 

Control range:30 : 1 


Harsh operating conditions require valves to have special structural design of durable material and with good flow characteristics for accurate process control


Structural improvements have doubled the lifetime and enhanced the control performance of  angle type needle valves for alumina digestion flash tanks.
Installation reduces

digestion's operating cost.

Valve lifetime doubled
Less maintenance cost of digestion piping due to longer lifetime of the valve
Less repair of throttle orifice and jet.

Down time caused by orifice failure, erosion and replacement are avoided after installation of the angle need valve.

Angle control valve can be disconnected from the whole allowing testing of disc and seat. In operation, seat and disc are visible and quick-wear parts can be easily replaced.


Valve Size : 2"-16"   DN50-DN400
Pressure :   Class 150-Class 900     PN1.6-PN16 
Valve body material :  WCB

Connection method: Flange

Driving method :  Electric

Design Standard : ASME B 16.34   


Alumina Plant , High -presure digestion workshop , tube digestion process , nine -level self evaporator ,feeding 
Electric Angle Type Needle Valves for Alumina Digestion Flash Tanks


Send your message to this supplier

avatar Ms. Doris Wang

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now