Ceramic Ball Valves for Lime Stone Slurry in FGD System

FGD is a process of treating flue gases with lime stone slurry to remove SOx, NOx and other pollutants and produce gypsum slurry as a by-product. One of the technological challenges in FGD system is the highly corrosion and abrasion of the slurry to the pipe lines and valves. Severe corrosion and abrasion can result in unacceptable high costs for replacement and maintenance. Therefore in many coal fired power plant by choosing the best corrosion-resistant and abrasion-resistant ceramic full lined ball valves and pipes will ensure the FGD system can be cost effective and stabilized.

Product Type:

Full Lined Ceramic Ball Valve

Installation End:

Flanged

Valve Size:

1/2” to 8” ( DN15 to DN200)

Pressure Rating:

CL150, PN10, PN16

Actuation:

Lever, Pneumatic, Electric (Motorized)

Medium:

Lime Stone Slurry

Working Temperature:

Max. 150°C (302°F)

Working Pressure:

2-10bar

Body: ASTM A105

Ball: Zirconia (ZrO2) Ceramics

Seats and Lining: Alumina(99%Al2O3) Ceramics

This 3”-150LB ceramic full lined ball valve was returned to factory in May 2014 for a routine debugging and maintenance after three years installation in customer’s FGD system. The ceramic ball was still smooth and like mirror, there were no visible scratches and erosion. After re-debugging, this valve was sent back to customer for the 2nd service life period.