Walz & Krenzer, Inc.

08 39 19/WAL BuyLine 9365 Walz & Krenzer, Inc. Watertight Door and Window Watertight Hatch Removable Lip Seal Flood Barrier System 3 Lip Seal Gasket Flood Barriers Flood Barriers and Watertight Closures since 1939 4 Compression 5 6 7 8 Gasket Flood Barriers Inflatable Gasket Flood Barriers & Doors Watertight & Airtight Doors Watertight Hatches Special Closures

Walz & Krenzer, Inc. 2 W alz & Krenzer, Inc. (WK) is a wholly U.S. owned small business specializing in the design and supply of custom fabricated watertight and airtight doors, flood barriers, and hatches. Since 1939, the company has offered a wide range of competitively priced manual and power operated doors, flood barriers, and hatches designed to seal any size opening against water, chemical, air, and blast pressure. WK offers unparalleled experience in the design of custom watertight closures, from the most simple flood barriers to complex power operated (hydraulic/ pneumatic) gates and doors. PRODUCT OVERVIEW All WK closures are custom designed and manufactured to your specifications. Closures can be designed to comply with FEMA, radioactive, blast, or other requirements. Watertight doors, hatches, and flood barriers are supplied for any size opening, and can be designed to withstand almost any pressure requirements. All closures can be operated either manually or with hydraulic or pneumatic controls. Compression, lip seal, or inflatable gaskets in the closure s panel are secured against the closure frame by securing devices to provide an effective watertight or airtight seal. Installation is achieved by either bolting or welding the frame to an existing structure or by embedding an integral masonry frame in newly poured concrete. All closures are available in steel, aluminum, or stainless steel. Prior to release for manufacturing, all WK drawings are approved by in-house licensed Professional Engineers. TECHNICAL SUPPORT 1.01 Acceptable Manufacturers: Closures shall be as manufactured by Walz & Krenzer, Inc. or approved equal. 1.02 Description: Provide flood barrier (watertight door/hatch) factory assembled with frame(s) and all operating components in accordance with contract specifications and approved drawings. 1.03 Design: All WK closures are designed in accordance with AISC Specifications for Design, Fabrication, and Erection of Structural Steel for Buildings, The Aluminum Assoc. Aluminum Design Manual, and other applicable industry and WK standards. Closures may also be supplied to ASME code requirements. 1.04 Standards: Comply with the provisions of the following (as applicable): A. American Welding Society Structural Welding Codes D1.1, D1.2, D1.3, D1.6. B. ASME Structural Welding Code Section IX C. ASME Appendix VIII of Section VIII, Div. 1 liquid penetrant testing of welds D. American Society for Testing and Materials (ASTM) A36, D2000 E. American Iron and Steel Institute (AISI) CL 316, 316L, 304 F. Steel Structural Painting Council (SSPC) SP10, SP71 G. Federal Emergency Management Agency (FEMA) Technical Bulletin 3-93, #102, #114 1.05 Submittals: A. Manufacturers Data submit installation and maintenance manuals B. Shop Drawings submit shop drawings including dimensioned plans and elevations, parts list, sections and details of all mountings and connections. C. Calculations (optional for critical applications): Submit calculations approved by a licensed P.E. verifying the closure s ability to withstand the design pressure loading. D. QA Submittals submit test reports showing compliance with specified performance characteristic. 1.06 Quality Assurance: A. Manufacturer shall present evidence attesting to at least five years successful experience in the design and manufacture of similar closures. B. All welding shall be performed in accordance with the requirements of applicable AWS or ASME standards. C. Testing: see Part 1 under each individual closure model for specific testing requirements. 1. All closures are factory operationally tested to ensure proper seal and function. 2. Compression and inflatable gasket closures to be shop chalk tested. 3. Lip seal gasket closures to be shop leakage tested. 4. Optional testing for critical application: welds in the potential leak path shall be liquid penetrant tested in accordance with AMSE Appendix VIII of Section VIII, Div. 1 5. Optional testing for critical application: provide hydrostatic test data certifying that the closure furnished, or a closure of similar design, has been satisfactorily tested to verify that it will withstand the designed hydrostatic pressure with no visible leakage. Refer to Part 2 Products specification for each product PART 3 EXECUTION 3.01 Fabrication: A. The finished product shall be rigid, neat in appearance, and free from all defects, warps, and buckles. All exposed joints and corners shall be well rounded. B. The panel and frame shall be flat within 1/8 in any 6 length. 3.02 Installation: A. Install closures in accordance with manufacturers instructions and approved shop drawings. 3.02 Warranty: Closures shall operate satisfactorily and be free of defects for a period of not less than one year.

08 39 19/WAL BuyLine 9365 Lip Seal Gasket Flood Barriers Model FP-LS, FP-M, and FG-LS Single panel removable lip seal flood barrier Model FP-LS Multiple panel removable lip seal flood barrier Model FP-M SIDE FRAME BOTTOM PIN SIDE FRAME BOTTOM FRAME "LIP SEAL" GASKET STOP "LIP SEAL" GASKET "LIP SEAL" GASKET STOP SEALED SILL T he lip seal flood barrier offers the flush sill advantage of inflatable gasket floodgates, plus the following additional benefits: Ease and speed of use; just place the panel in the frame and slide the latch bolts to secure. There are no gaskets to inflate or bolts to tighten. Increased reliability; there is no inflatable gasket that could lose air pressure. Minimal frame construction offers improved aesthetics. Lower costs Lip seal flood barriers are available in hinged or removable configurations. Openings wider than 10 often require multiple panels with removable braces. Large panels may be supplied with mounted rollers for ease in transportation and installation. Single panel lip seal flood barriers have a very small (2") corner radius. These flood barriers offer a fully watertight seal and are recommended for most applications. The radiused corners are small enough so as not to present a tripping hazard. In cases where the small corner radius creates interference problems or at a junction of panels in multi-panel floodgates, square corners can be utilized. Very slight leakage may occur at the square gasket corners, but this leakage rate is significantly less than the FEMA allowable leakage rates. When the weight of the removable panel is a concern, we offer an aluminum composite panel material. Use of this aluminum skinned composite material reduces the panel weight by about 45%. SEALED JAMB FLUSH BOLTED FRAME Side hinged lip seal flood barrier Model FG-LS SEALED JAMB BOLTED ANGLE FRAME 1.06 Quality Assurance: C. Perform shop hose or leakage test to ensure compliance with FEMA allowable leakage rates. Flood barrier shall be model FP-LS, FP-M, or FG-LS as manufactured by Walz & Krenzer, Inc. or approved equal. A. Panel: 5052-H32 aluminum plate with 6061-T6 alum. stiffeners (mild steel, aluminum composite, and stainless steel available). B. Frame: A-36 steel (aluminum and stainless steel available). C. Latches: stainless steel sliding latch bolts D. Gaskets: Walz & Krenzer lip seal gasket, 60 duro with fully molded corners. E. Finish: aluminum plate or aluminum composite panel primed with INSL-X CheckRust acrylic paint. Mild steel frame primed with inorganic zinc primer. Finish paint by others after installation. Other finishes available. 2.03 Design: Flood barriers over 10'w and/or 6'h may require multiple panels. Multiple panel flood barriers available in side-by-side and stacked configurations. 3

Compression Gasket Flood Barriers Model FP-C and FG-C Side Hinged Flood Barrier Model FG-C Removable Flood Barrier for Transit Station Model FP-C DOG GASKET STOP RECESSED SILL GATE IN PLACE RAISED SILL 4 C ompression gasket flood barriers offer a 100% watertight seal in both hinged and removable configurations. Available for any size opening, these flood barriers compress the gasket against the knife-edge of the frame utilizing either drop bolts or rotating dogs. The standard bottom sill is raised 2" from the floor surface, however a recessed sill with removable flush sill plate is available for complying with ADA requirements. Multiple panel barriers are available for large openings. Ease of installation and low maintenance make this type of flood barrier popular. 1.06 Quality Assurance C. Perform shop chalk test to ensure 100% watertight seal. Flood barrier shall be model FP-C as manufactured by Walz & Krenzer, Inc. DIM "B" GRAB HANDLE DIM "A" LIFT OUT FLOOD GATE RAISED SILL SHOWN FRAME DOG GUIDE A. Panel: 5052-H32 aluminum plate with 6061-T-6 alum. stiffeners (mild steel and stainless steel available). B. Frame: A-36 steel (aluminum and stainless steel available). Standard 2" sill. Recessed sill optional for lift-out flood barriers. C. Dogs/Drop Bolts: stainless steel/bronze drop bolts or dogs. Utilize drop bolts for reduced maintenance and lower cost where operation is from outside only. D. Gasket: ASTM D2000 GR DE neoprene gasket, 25 duro with fully molded corners. Additional gasket material (i.e. viton, silicon) available for unusual environmental conditions. E. Finish: aluminum panel primed with INSL-X CheckRust acrylic paint. Mild steel frame blasted to near white metal and primed with inorganic zinc primer. Finish paint by others after installation. Other finishes available. 2.03 DESIGN: Flood barriers over 10'w and/or 6'h may require multiple panels with mullions. Multiple panel flood barriers available in side-by-side and stacked configurations

Inflatable Gasket Flood Barriers & Doors Models FP-I, FG-I and WT-ID 08 39 19/WAL BuyLine 9365 Side hinged inflatable gasket flood barrier Model FG-I Removable panel inflatable gasket flood barrier Model FP-I Inflatable gasket door Model WT-ID I nflatable gasket flood barriers and doors are recommended when a 100% watertight seal and a flush bottom sill are required. This type of flood barrier/door is often used for inside applications such as labs and clean rooms. Flood barriers are available in bottom hinged, side hinged, and removable designs. The gasket(s) can be easily inflated using a hand or foot pump, portable compressed air tank or compressor, bottled gas or shop air. Power inflation/deflation, local and remote activation, and monitoring are among the available options. Both the flood barriers and doors are available in both single and dual inflatable gasket designs. For cost savings, we recommend only using dual gaskets in critical applications. Care should be taken to maintain a clean sealing surface so as not to damage the gasket. 1.06 Quality Assurance: C. Perform shop chalk test to ensure 100% watertight/airtight seal. D. Perform air leakage test to ensure 100% watertight/airtight seal. SECTION AT SILL EMBEDDED FRAME (MF) GASKET Flood barrier/door shall be Model FP-I (removable panel barrier), FG-I (side hinged flood barrier), or WT-ID (watertight/airtight door) as manufactured by Walz & Krenzer or approved equal. A. Flood Barrier Panel: 5052-H32 aluminum (mild steel and stainless steel available) B. Door Panel: A-36 steel (aluminum and stainless steel available) C. Frame: A-36 steel (aluminum and stainless steel available) D. Latches: stainless steel E. Gasket: neoprene or EPDM inflatable gasket supplied with standard automotive style valve stem and pressure gauge. Fabric reinforced inflatable gasket used for highpressure applications. F. Finish: aluminum panel primed with INSL-X CheckRust acrylic paint. Mild steel frame blasted to near white metal and primed with inorganic zinc primer. Finish paint by others after installation. Other finishes available. 2.03 Design: Typical operating pressures for inflatable gaskets range from 0-40 psi. Higher pressures may require the use of compression gaskets. 5

Watertight & Airtight Doors Models WT-FD-QA and WT-FD-I Quick-acting watertight door Model WT-FD-QA W atertight and airtight doors are available in either single or double panel configurations for any size opening in both hinged and sliding designs. Compression gasket doors offer simple, reliable operation for pressures up to 140 psi. Inflatable gasket doors are typically designed for a maximum of 40 psi and are often used in interior locations. Compression gasket doors are sealed with individual dogs or a quick-acting mechanism (hand wheel or lever), and can be operable from both or one side. Double doors are often used where space or weight constraints are a concern, and are provided without center mullions to allow for full access. All doors can be provided for manual or power operation, with options such as local and/or remote indication or operation, and interlocking available. Frames are available for bolting or welding to existing masonry openings or with integral masonry subframes for embedding in new pour concrete. Watertight/airtight doors are available in both vertically and horizontally sliding designs. 1.06 Quality Assurance C. Perform shop chalk test to ensure 100% watertight/airtight seal. Watertight (airtight) door shall be model WT- FD-QA (quick-acting) or WT-FD-I (individually dogged) as manufactured by Walz & Krenzer or approved equal. A. Panel and Frame: ASTM A-36 steel. Available options for panel and/or frame include stainless steel types 304, 316, 316L, or aluminum. B. Securing Dogs: Stainless steel dog assemblies with bronze wedges. Dogs include means for adjusting seal compression after installation. Drop bolts are available in lieu of dogs for infrequently used doors. C. Quick-acting handwheels/levers: stainless steel. D. Gasket: ASTM D2000 GR DE neoprene gasket, 25 duro with fully molded corners. (40 duro used for doors designed to seal against a pressure exceeding 20'). Optional gasket material (viton, silicon, hypalon and others) available for unusual environmental conditions. E. Hinges: Hinges include stainless steel pins with oil impregnated bronze thrust bearings. F. Finish: mild steel blast to near white metal per SSPC-SP-10. Prime with one coat of inorganic zinc primer. Finish paint by others after installation. Other finishes available. Individually dogged watertight door Model WT-FD-I 2.03 Design: A. Frames: Standard frames have 2" sill. Alternatives include integral masonry subframe and/or recessed sills for sliding doors. B. Operating mechanism: individual dogs or drop bolts for infrequent use. Quickacting handwheels or levers for more frequent use. C. Options include power operation, remote indication/control/monitoring, viewing windows, and locks. Model WT-FD-I 6

Watertight Hatch Models WTH-F and WTH-R 08 39 19/WAL BuyLine 9365 Flush hatch Model WTH-F Raised hatch Model WTH-R DROP BOLT DOG HINGE CLEAR OPENING HINGE MASONRY OPENING BOLTED FRAME DOG EMBEDDED FRAME BOLTED FRAME TYPICAL RAISED HATCH CROSS SECTIONS EMBEDDED FRAME TYPICAL FLUSH HATCH CROSS SECTIONS W atertight and airtight hatches are available in both raised and flush designs for any size or pressure requirement. Flush hatches are used in foot or vehicular traffic areas. Compression gaskets provide efficient sealing with extremely low maintenance. The gaskets are compressed against the frame by either drop bolts or individual dogs for hatches used infrequently, or by handwheels for hatches that see more frequent use. Operation can be from either one side or both sides. Frames and coamings can be supplied for bolting to an existing masonry surface, for welding to an existing metal frame, or with a masonry subframe for embedding in newly poured concrete. Options include spring balancing or gas springs for larger or heavy hatches, power operation, and hold open braces. 1.06 Quality Assurance C. Perform shop chalk test to ensure 100% watertight/airtight seal. Watertight (airtight) hatch shall be model WTH-F (flush hatch) or WTH-R (raised hatch) as manufactured by Walz & Krenzer or approved equal. A. Panel and Frame: ASTM A-36 steel. Available options include stainless steel types 304, 316, 316L, or aluminum. B. Securing latches: stainless steel dog assemblies with bronze wedges. Stainless steel & bronze drop bolts available for infrequently used hatches. C. Quick-acting handwheels: stainless steel D. Gasket: ASTM D2000 GR DE neoprene gasket, 25 duro with fully molded corners. (40 duro used to seal hatches against a pressure exceeding 20'). Additional gasket material including viton and silicon available for unusual environmental conditions. E. Hinges: Hinges include stainless steel pins with oil impregnated bronze thrust bearings. F. Finish: mild steel blast to near white metal per SSPC-SP-10. Prime with one coat of inorganic zinc primer. Finish paint by others after installation. Other finishes available. 2.03 Design: A. Frames: for bolting to existing masonry surface, for welding to metal frame, or with masonry subframe for embedding in new pour concrete. Extended coamings available. B. Operating mechanism: individual dogs or drop bolts for infrequent use. Quick-acting handwheels for more frequent use. C. Options: power operation, spring balance, gas springs, and hold open braces. 7

Special Closures Engineering + Experience = A Winning Tradition Hydraulically operated flip-up flood gate for vehicle access shown during installation W alz & Krenzer specializes in the design of custom watertight closures for any application. With over 60 years of experience in both the marine and industrial fields, WK can offer you the right solution for your application. Our experienced engineering staff provides assistance from the specification stage through installation. Whether manually or power operated, for high or low pressure, we combine decades of experience with today s technology. Offering competitive pricing and fast delivery, WK provides a fully engineered product, which will comply with all specifications and regulations. Each closure is custom designed, engineered, and manufactured to your requirements. After receipt of an award, WK will prepare and submit calculations and shop drawings for approval. All production drawings are approved by in-house licensed Professional Engineers, and are manufactured in the US by small businesses. Over the past 60 plus years, Walz & Krenzer has supplied special purpose closures for nuclear facilities, test labs, hospitals, and other facilities with very specific design criteria (wind, blast, radioactive, gas, and water pressures). The more complex your requirements, the more you need WK! Outage hatch/door for nuclear facility during installation Flip-up flood barrier Vertically sliding flood barrier Horizontally sliding flood barrier Raised watertight hatch with counter balance Walz & Krenzer, Inc. 91 Willenbrock Road - Unit B4, Oxford, CT 06478 PHONE: 203-267-5712 FAX: 203-267-5716 E-MAIL: sales@wkdoors.com Visit us on the Web at www. floodbarriers.com An ISO 9001:2000 Company