Industry Areas

Petrochemical

Burner Management Systems

Burner management systems demand the highest level of on-off and safety valve performance. Emergency shutdown (ESD) and venting valves must close under all circumstances and meet the toughest fugitive emissions standards.

Seat design and materials must provide superior long-term tightness that withstands a high number of thermal cycles and valve strokes.

Control of the fuel supply to the burners requires an intelligent valve solution that provides high Cv and rangeability while handling impurities in the fuel line.

Certified high-performance valves offer uncompromised safety in the burner management system and deliver maximum process uptime with minimal maintenance.

Soft-seated ball valves for ESD, venting and burner shut-off ensure full tightness even after years of services. Live-loaded emission packing in the valve stem prevents leakage of hazardous media. Intelligent control valves offer wide rangeability and high Cv with a patented trim design that easily handles dirty fuel gas and oil.

Catalytic Reforming

Many diverse challenges threaten CCR efficiency throughout the various process segments: catalyst addition and removal, chloride injection, and lock hopper blocking and venting.

High operating temperatures, abrasive medium, frequent cycling, and solids are all challenges that can affect valve performance and lifecycle if valves are not specified correctly. There is zero tolerance for error with respect to valve metallurgy and overall ball design. Minor valve design errors will compromise the spherical catalyst integrity, while big mistakes can result in catastrophic failure.

In addition to harsh process conditions, operators are increasing runtimes of CCR units. This, along with the high cycle rate of the process puts considerable stress on the valve, which must continually operate with a high degree of accuracy over longer periods.

Delayed Coking

Coke drum isolation, 4-way switch and overhead vapor valves all play performance and safety-critical roles in the coking process. So do the support valves around the coke drum. In either case, poorly designed valves will quickly allow heavy residuum to creep into ball/seat or stem areas causing a valve seizure, downtime and unsafe working conditions.

The extreme heat and potential volatility of the thermal cracking process make coking a potentially dangerous application. The escape of process medium must be prevented to avoid potentially lethal situations. These safety considerations, in addition to increasing uptime requirements and yield goals demand exceptional valve technology and performance.

Valve designs preventing residue accumulation

Coke drum isolation, 4-way switch and overhead vapor valves typically experience the most severe conditions and are the focus of the greatest scrutiny within the process.

Fluid catalytic cracking (FCC)

CC process steps (converter, flue gas, main fractionator, regeneration and vapor recovery) all present different challenges that require unique solutions. However, all require erosion resistance, control accuracy, rangeability and uncompromising reliability especially in safety-critical locations.

The slurries used in the FCC process are erosive. Valves that are poorly designed or use less than ideal materials of construction will wear quickly causing dangerous conditions and downtime.

The FCC process is hot and abrasive. In order to achieve the greatest performance and uptime we focus on delivering the exact right material selection and trim coating materials. Our proprietary seat design is proven to reduce the collection of solids and keep valves operating reliably longer than the competition.

Hydro Cracking

Hydrocracking is tough business. The process is characterized by extreme pressure and temperature. Additionally, harsh conditions including flashing, noise and volatility make the process especially challenging and the source of potential dangers. Valves are both safety-critical and potential sources of new efficiencies within energy dispersal and catalyst systems.

Hydrocracking also demands a high level of valve accuracy to control the catalyst system and reactor temperature. Inaccurate or poorly performing valves will result in imbalanced ratios of quenching hydrogen and catalyst that can cause dangerous conditions, downtime, and threaten throughput integrity.

Valve Selection Principles
  • The model and performance of the selected valve can achieve the requirements of process parameters such as flow rate, pressure, working temperature, medium going through pipe etc

  • Corrugated pipe sealing design or leak-free valves are required for valves that transport flammable, explosive, toxic or valuable media,

  • Corrosive materials such as teflon are required for flow passage components for valves that transport corrosive media,

  • For valves containing solid particulate media, it is required that the flow passage component have to be made of wear-resistant material, and if necessary, the shaft seal should be flushed with a cleaning liquid.

  • When valve going through highly corrosive media (such as concentrated sulfuric acid, concentrated nitric acid), flammable and explosive media, and environment must not have any pollution, you can use a resilent valves.

  • Choosing the proper valve is crucial for you as it not only saving the cost, but the valve can work in a long service life.

Experience and Cases
Wetlap Machine #3,TNPL,India

Wetlap Machine|TNPL

PM 7 project| ITC

Rayagada |JK PAPER

Pulp Making|CMPC

Pulp Making|Suzano

Paperboard Making|Visy Paper

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