Our Products

CCSI 1045DEP

Thermoplastic Elastomer Diaphragm

We are the industry leader in Diaphragm Inspections and Replacement and trouble shooting. CCSI 1045DEP material is the leading material in tank diaphragm replacements for use in nuclear applications. 


CCSI 1045DEP meets or exceeds all original specifications and has been tested and accepted by Westinghouse and Bechtel as an alternate material that would perform its function at nuclear facilities and satisfy the stringent reactor coolant chemistry requirements now in effect for the nuclear industry.

    1. Less chloride, fluoride, TOC’s, soft metal content.

    2. Thermoplastic Elastomer material requires no solvents or adhesives for repairs--if ever needed. Most solvents and adhesives used in rubber fabric diaphragms are not on the allowable chemicals list for use in the nuclear industry.

    3. Smooth white surface makes it easier to inspect and verify the cleanliness and condition of the material.

    4. Superior tear resistance with no directional tear propagation.

    5. Engineered flotation cells allow for verification of the diaphragm floor position during in-service inspections. The diaphragm will never sink or plug the pump suction.

    6. Dielectrically welded seams form a total monolithic construction with no adhesive or gum rubber to disintegrate and contaminate systems.

    7. CCSI 1045DEP Thermoplastic Elastomer diaphragms are not effected by ozone aging. It offers indefinite storage life and infinitely improves service life.

    8. The Thermoplastic material completely encapsulates a reinforcing scrim. It will not peal or flake like rubber coated fabrics or contaminate systems.

    9. CCSI provides proper operating and fill procedures for optimum system performance, including air removal from under the diaphragm caused by upset conditions, and nitrogen purging procedures if needed.

    10. The CCSI 1045 DEP is designed to meet nuclear applications. It meets or exceeds all original specifications, has been tested and accepted by Westinghouse and Bechtel, and satisfies stringent reactor coolant chemistry requirements.

  • Service inspection of CCSI 1045DEP Diaphragm. This diaphragm was installed more than 25 years ago.

  • Diaphragm during installation.

  • Flotation media being inserted into a pocket during the Diaphragm installation.

  • CCSI 1045DEP Diaphragm during a 20 plus year service inspection.

  • CCSI 1045DEP diaphragm in water storage tank. This Diaphragm and seal demonstrates the Diaphragm holding a Nitrogen Blanket Gas that has been added. Nitrogen is added for water chemistry and is used to drive the oxygen out of the water. Photo was taken during a inspection on site in a Condensate Storage Tank. Atmospheric Seal accomplished. No O2 entering the system Here!

Services

Specialized Nuclear Engineering Support

CCSI provides evaluation, troubleshooting, system analysis, revisions, and modification of diaphragms for CST, RMWST, RHT, and PWST tanks. CCSI is the recognized industry leader in diaphragm fabrication and design, installation, repair, and technical support services. Three decades of unparalleled expertise earned through extensive field experience makes CCSI exclusively "nuclear qualified" to evaluate and service diaphragms for system storage tanks.

CCSI provides the nuclear industry with specialized technical engineering support, superior products, and innovative solutions to time-sensitive situations. Our experience and expertise in providing the nuclear industry with diaphragms/bladders for their containment systems are unequaled by any other. We provide on-site inspections to determine the scope of work necessary, modifications required, trouble-shooting of containment system problems, and turnkey services for the repair or replacement of your diaphragm. Key Benefits

  • Since, 1974 CCSI has been the leading supplier of diaphragms. We provide the nuclear industry with the best in engineering support. Our experience and expertise have provided the nuclear industry with unsurpassed quality products for:

    • Primary Storage Water Tanks

    • Reactor Makeup Water Storage Tanks (RMWST)

    • Condensate Storage Tanks (CST)

    • Recycle Holdup Storage Tanks (RHT)

    • Boric Acid Storage Tanks

    • Demineralized Water Storage Tanks

    • Gas Holder Diaphragms

    • Others-To meet our customers’ needs

  • CCSI is committed to quality and attention to detail.

  • Our product's design and materials used are superior to all other options. Unlike materials used in earlier diaphragm designs, the CCSI 1045DEP diaphragm requires no glues or adhesives in its construction. Therefore, there are none present to degrade and upset the water chemistry. Our customized technology is the industry standard. The CCSI 1045DEP diaphragm is dielectricly welded. This provides a near monolithic construction. Our design, currently used by nuclear power plants throughout the world, has superior tear and abrasion resistance than any other OEM. The CCSI 1045DEP diaphragm is your best containment system option.

  • CCSI provides turnkey services to clients. We design, fabricate and install the diaphragms for you. When you select CCSI for your maintenance needs, the buck stops here. There is no fingerpointing with other contractors because we offer complete services from start to finish. Our technicians will inspect your system and will provide you with a complete and detailed analysis of current and potential problems, options available and documentation to support everything.

  • Using a diaphragm in a tank provides a reliable, long-term passive system. Unlike nitrogen overpressurization systems, our system requires only about one cylinder of nitrogen every six months. Furthermore, there isn't the opportunity for a hazardous situation of a colorless, odorless gas to asphyxiate employees.