VALVE VALVE SEALING PROGR AM

A history of proven results Knowledge, experience, and service CHESTERTON® has over a century of experience in providing sealing solutions for a wide variety of tough valve sealing applications. Customers can benefit from Chesterton’s sealing knowledge and experience. We provide high-reliability sealing solutions designed specifically for valve applications. Chesterton sealing solutions increase reliability, simplify installation with standardization, and extend sealing performance throughout your plant. Our in-field program specialists and applications engineers have both the industry and product...

The standard for leak-free valve performance Chesterton Valve Sealing Program results are proven by years of plant service. By combining the best achievable control technology with expert service, plants can maximize operating efficiencies. This program has become a reliable choice for valve asset managers, from the largest refineries to nuclear power plants around the world. Program components include: Pre-turnaround and outage planning ■ In-plant survey ■ Certified training for mechanics and valve shops On-site staged inventory Turnaround/outage support ■ On-site support ■ Best achievable valve...

CONTROL VALVE SOLUTIONS Air Operated Common AOV Sealing Concerns 1. Valve Stem Leakage ■ Frequent stem actuation can cause loss of packing gland load that leads to stem leakage. PTFE v-rings will relax and wear in service. Braided packing will consolidate in service and lose gland load. 2. Poor Valve Responsiveness ■ Control valve responsiveness is critical to process quality and control. High packing friction from graphite rings causes poor step response and process control, especially in lower temperature valves. Friction causes valves to constantly hunt for the correct position, resulting...

Motor Operated Common MOV Sealing Concerns 1. Packing Consolidation and Friction The 5300 sealing system meets the sealing requirements of MOVs. These valves are often difficult to seal due to their demanding services and physical size. MOVs are often critical to plant operation and safety and leave no margin for error. Chesterton 5300 is sealing hundreds of thousands of valves across the globe with both leakand problem-free performance. Deep stuffing boxes with too many packing rings increase consolidation, leading to valve stem leakage. Excessive packing friction reduces valve operability....

BLOCK VALVE SOLUTIONS General Services Common Block Valve Sealing Concerns 1. Excessive Stem Friction The 1601 packing combines layers of graphite strands braided into one. Each strand is reinforced by an Inconel® mesh covering and is braided to form a dense pliable packing. The 1601 is then impregnated with high-temperature blocking agents, lubricants and a passive corrosion inhibitor. High breakaway packing friction often requires operators to use valve keys and bars to operate valves. Bypass seat leakage is often a result of excessive force being used to manually open and close valves, causing...

Emissions Services Common Block Valve Sealing Concerns 1. Excessive Stem Friction The 1622 Low Emissions Valve Packing combines layers of graphite strands braided into one. Each strand is reinforced by an Inconel® mesh covering, has blocking agents added, and is braided to form a dense, flexible packing. The 1622 is then impregnated with high temperature blocking agents, lubricants, and a passive corrosion inhibitor. Breakaway friction can make valve operation difficult and unreliable. Excessive force used to open and close the valve can cause internal damage to the valve and packing. 2. Packing...

CHESTERTON Hydro Jet Packing Extractor The solution to difficult valve packing removal The Hydro Jet Packing Extractor is a high pressure water jet that penetrates and removes rock-hard packings quickly, cleanly, and safely without damage to valve stem or stuffing box. Eliminate valve damage due to packing removal ■ It eliminates the risk of scoring or gouging a valve stem, stuffing box bore, or flange face caused by using outdated packing extraction methods. No more struggling to remove worn, dried out, burnt, rock-hard valve packing ■ Makes removing graphite packings that may crumble and be...