Pneumatic Ceramic Ball Valve for Blast Furnace Shop, Complex of Pulverized Coal Injection Fuel

Customer: *****Metallurgical plant

The mounting location: Blast furnace shop, complex of pulverized coal injection fuel

Type: Pneumatic Ceramic Ball Valve

Seal: Stuffing box packing

Nominal diameter DN ,mm: 50, 80, 100

PN nominal pressure , kgf/cm2: 16

Pp pworking pressure , kgf/cm2: 10

Working environment: 

Сhemical composition: Nitrogen + coal dust (N2 + coal dust) Fraction to 0.074 mm-90٪ by weight.

Aggregative state: gaseous state

Temperature, ºС: from 50 to 80

The pressure after the valve P2 , kgf/cm2: 0

Min. differential pressure , kgf/cm2: 16

Case Material: Stainless steel.сталь 1.4301

Shutter: 

The maximum pressure differential in closed position , kgf/cm2: 16

Tightness in the gate according to GOST: A

Connection to the pipeline: Flange connection

Actuator: 

Supply pressure , kgf/cm2: 4-5

The position in the absence of air: Hold the position

Accessories: limit switch, position sensor, filter regulator, the manual override, counter flanges, gaskets, fasteners

Installation: 

The size of the pipe DH x S , mm: 63х8; 89х6; 108х6

Ambient temperature , ° C: from -10 to +80

Additional requirements - pneumatic dispenser with magnetic valve, double solenoid (5/2-way function with two clauses). In the absence of air, the valve keeps the position. 

The position of valve - horizontal.

Additional requirements ceramic valve:

Case material: stainless steel 1.4301;

Ball material: ZrO2 ( cast ceramics without coating);

Sleeve material ball: Al2O3 (cast ceramics without coating);

Material spring loaded o-ring: Al2O3 (cast ceramics without coating);

The taper sleeve material: Al2O3 (cast ceramics without coating);

Sleeve material for abrasion protection: Al2O (cast ceramics without coating);

The desired service life of valves in high-abrasion – 5 years;

The number of cycles of valve operation, a day mode, open/close – 50 cycles

Техническое описание / Technical description

оборудования, поставляемого по контракту № 1884 от 01.09.2017 года / for the Equipment shipped due Contract 1884 dd Sept. 01, 2017, Specification 1