SQ double eccentric half ball in the digestion and absorption of the of CANALI company production folder large flow through valve (Maxiflub-stellventile) 
 Developed on the basis of success. Eccentric a deed principle of its structure to reach through the transmission gate tight regulation, the purpose of the closed, sealing the metal surface ring stiff dough contact seal, double eccentric structure in the open spool in the possession of the ball room, large flow area, and valve is not washed, turn off when the spool is not washed, open spool sphere along the seat gradual removal of scaling obstacles, to achieve a reliable seal, its two mixed flow easy to scale solid precipitation Francis transportation particularly effective . Hemisphere of the second characteristic of the valve with dual metal, base metal surfacing alloy valve seat corresponding surfacing sealing surface to form various types of corrosion, wear, high strength special handling to meet the needs of different occasions, the third characteristic of the seal is strictly prohibited, conveying harmful gases up to zero leakage, the fourth characteristic is the spool seal pair left the amount of compensation, when the seat wear (seat hardness below the spool), close rotate a little, still a reliable seal and prolong life, in addition, the compression nut screw off, adjust or replace seat can still be used to avoid the current number of valve seal failure the drawbacks of whole scrap. 
 Surfacing alloy (or combination of ball) different bi-metal seal pair of matching can be used to wear, corrosion, high temperature and because the requirements of different industrial sectors tightly sealed. The main purpose of the product and product features: 
 A universal valve: Specifications Model PN1.0-4.0Mpa, DN40-1200. Apply to sewage treatment, pulp, urban heating, heating, and other requirements of the stringent occasions. 
 Oil of workers dedicated valve: the specifications of the DN40-1200, PN1.0-4.0Mpa applicable corrosion in crude oil, heavy oil and other types of oil, chemical industry, weak, two mixed flow media. Temperature up to 425 ℃. 
 Gas valve: the specifications of the DN40-1200, PN1.0-4.0Mpa for gas, natural gas, liquefied petroleum gas transmission control. The product structure is characterized by the seal pair surfacing with chromium stainless steel, sealed tight, corrosion-resistant. 
 (4) for the slurry valve: the specifications of the DN40-1200, suitable for liquid, solid two mixed flow, or liquid transportation of chemical reactions in industrial pipeline crystallization fouling. Product structural features based on customer demand media, the temperature requirements are different, the seal pair surfacing spool, valve seat with chrome molybdenum vanadium alloy welding chromium molybdenum vanadium alloy, chromium alloy, stainless steel alloy electrode surfacing to meet the transport needs of different slurry. 
 Pulverized coal ash dedicated valve: The specifications of the DN40-1200, applicable to power plants, hydraulic Deslagging or gaseous pipeline control. Wear resistance, product requirements and spool combination of ball-type bi-metal, with very high stiffness and wear, valve seat with the overall wear on the 1st or the whole surfacing, and has a hard seal ball valve features. 
 Features 
 A large flow area, flow resistance is small. This is because in the possession of the ball room, turned the spool fluid straight. 
 2 operating torque, turn 90 degrees to hoist complete, easy operation. 
 3 sealed tight, double eccentric metal seal. Scaling does not affect the opening and closing, this is the most significant advantages of the half ball. 
 Long life, seal wear, vice, and the compensation amount, the seat can adjust or replace. 
 Implementation of standards 
 Designed according to GB12237-89 flange connection (steel), by JB79.1 length of the structure in line with the GB12221-89 standard.