WEAK BLADDERS

(Technical name: diaphragms)

Complicated system?  No.

Functional system?     Yes.

Then why are you having so many problems?

Diaphragms were designed based upon technology available in gas containment for refineries, chemical processing plants, etc.

So, when the need arose in the nuclear industry for diaphragms to exclude air, or keep other nasty stuff from escaping out, this technology was adapted to the needs of the industry.  Existing materials were chosen to manufacture diaphragms.

CCSI’s involvement in the nuclear industry began.

When a vacuum was created between diaphragm suppliers (who knew little or nothing about installations), contractors who knew just a little more than the suppliers--and workers who knew Friday was pay day.  In the early 70's, CCSI was involved mainly in the mechanical maintenance, inspection, repair and replacement of tank liners and coatings.   CCSI provided diaphragm installation and repair at refineries, terminals, and chemical plants.  Because of our unique repair and installation expertise, various contractors in the nuclear industry began contacting us. During repairs and meticulous attention to detail, we corrected many deficiencies existing in original installations that allowed plants to go on-line with relatively few problems.     Knowing problems would arise in the future, CCSI began developing a new generation of diaphragms.  Whenever a replacement was needed, if possible, a

CCSI diaphragm was installed. Many years of inspections during outages allowed us to monitor different material performance.

Rubberized fabric diaphragms are falling apart.  While materials look good, there is severe seam degradation, increased TOC levels, and residue from diaphragms.     The assumption is that if it has a specific gravity of less than 1, it will float and never create a problem is FALSE.  (Battleships float).

After experiences refloating and stabilizing diaphragms, removing as high as 35 to 40 thousand gallons of water off the top of the diaphragm, we’ve learned some people think a little water on top of the diaphragm doesn't mean anything.  But we know, an equilibrium, allowing the diaphragm to sink and possibly block a pump suction.

line exists, tech specs (the amount of useable water you must keep in the tank) are also affected.

Things change.  NRC issued an Information Notice

and water chemistry requirements changed.  We have taken 20 years of good and bad diaphragms and

installations and perfected a system that really works.

We have engineered a diaphragm that is superior to any other on the market. We furnish complete service: field supervision, turnkey installations, installation manuals, mounting assemblies, and operating procedures.

Our diaphragms will give you many years of trouble-free, economical service, and keep the liquids you send to the tank in the same condition it was when it entered.     We have procedures for upset conditions, in-leakage, high O2 readings.  When our diaphragms are installed under our supervision, they perform as a passive, cost-effective method of maintaining water chemistry.

Services are available while on-line or during scheduled outages. We’re there when you need us.

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