Delta Cooling Towers - Materials of Construction
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Table provides a listing of materials used in the construction of Delta Cooling Towers corrosion resistant cooling towers, including test method reference and physical properties.
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*No tools or heat shrink gas torches required for installation of 3M cold shrink
*Seals tight, retains resilience and pressure even after aging and exposure
*Moisture resistant 3M silicone cold shrink
*Cold shrink resists acids and alkalies
*Resists ozone and UV ultraviolet light
*Fire resistant 3M silicone cold shrink tubings
3M Silicone Cold Shrink Applications
Primary electrical insulation of insulated wires and cable splices up to 1000 volts, insulation of electrical aircraft cables, suitable for indoor and outdoor applications, moisture sealing for high voltage (HV) air insulated cable connectors and cable lugs, insulation of secondary splices (copper and aluminium conductors), cable sheath repairs, insulation of line conductor transition connectors.
Flammability Testing of 3M Silicone Cold Shrink
3M Cold Shrink Insulators 8440 Series flammability testing was conducted with specimens positioned both vertically and horizontally per specification BSS 7230. The 3M silicone rubber cold shrink insulation passed the Flammability Test of BSS 7230 without supporting a flame. In addition, these cold shrink insulators were also subjected to a gas flame test as outlined in paragraph 4.4.15 of MIL-C-24643A and met the passing criteria as specified - no fuse was blown during the one hour flame exposure of the 3M Silicone Cold Shrink Tube.
8447-8 3M Silicone Rubber Cold Shrink Insulators
3M Silicone Cold Shrink Tubes - LSF Low Smoke Zero Halogen for Low Voltage Cable Splices, Cable Repair & Insulation Protection
3M 8447-8 Silicone Rubber Cold Shrink Tubes
Minimum diameter seal 14mm
Maximum diameter seal 24.13mm
Cold shrink tube length 172mm
No tools or heat shrink gas torches required for installation of 3M cold shrink
Seals tight, retains resilience and pressure even after aging and exposure
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Cold shrink resists acids and alkalies
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Fire resistant 3M silicone cold shrink tubings
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Primary electrical insulation of insulated wires and cable splices up to 1000 volts, insulation of electrical aircraft cables, suitable for indoor and outdoor applications, moisture sealing for high voltage (HV) air insulated cable connectors and cable lugs, insulation of secondary splices (copper and aluminium conductors), cable sheath repairs, insulation of line conductor transition connectors.
Flammability Testing of 3M Silicone Cold Shrink
3M Cold Shrink Insulators 8440 Series flammability testing was conducted with specimens positioned both vertically and horizontally per specification BSS 7230. The 3M silicone rubber cold shrink insulation passed the Flammability Test of BSS 7230 without supporting a flame. In addition, these cold shrink insulators were also subjected to a gas flame test as outlined in paragraph 4.4.15 of MIL-C-24643A and met the passing criteria as specified - no fuse was blown during the one hour flame exposure of the 3M Silicone Cold Shrink Tube
Deckguard_highway_bridge_dot_eng_ppt 2011
The document discusses Deckguard, a spray-applied polyurea waterproofing membrane system for bridge decks. It provides an overview of the current need to rehabilitate aging bridges, lists states currently using the Deckguard system, and analyzes bridge deck area data. The document also outlines the Deckguard application process, compares its properties to other materials, examines typical bridge projects where it has been used, and highlights its benefits over other systems.
E flex - Airex Manufacturing Inc
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Mining applications can be hard on the equipment. Abrasive, corrosive, erosive — all those conditions apply in varying proportions. So it can come as a relief to know that FluoroSeal® Non-Lubricated Plug Valves, both Sleeved and Lined, can handle even the hardest of condition combinations, in a variety of mining operations.
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A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
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Delta Cooling Towers - Materials of Construction
- 1. The information, recommendations, and opinions set forth herein are offered solely for your consideration, inquiry and verification and are not, in part or total, to be construed as constituting a warranty or representation for which we assume legal responsibility. Nothing contained herein is to be interpreted as authorization to practice a patented invention without a license. Delta Cooling Towers, Inc. 41 Pine Street ~ PO Box 315 Rockaway, NJ 07866 973/586-2201 / 973/586-2243 fax Average Properties of the Materials of Construction Mechanical Properties: Polyethylene (Shell Material) Test Method Properties 1. Tensile Strength (@ 20m./min.) ASTM D 638 2600-3000 2. Stiffness Modulus ASTM D 747 56-70 X 103 psi 3. Tensile Impact Strength ASTM D 1822 90-130 ft. lb. /in.2 4. Elongation (@ 20in./min.) ASTM D 638 150-350% 5. Vicat Softening Point ASTM D 1525 230°/238°F 6. Deflection Temperature at 66psi ASTM D 648 172°F 7. Brittleness Temperature ASTM D 746 -94°F PVC (Wet Decking & Eliminator Material) Test Method Properties 1. Tensile Strength ASTM D 638 7100 psi 2. Flexural Modulus ASTM D 790 300-500 x 103 psi 3. Izod Impact ASTM D 256 0.73 ft. lb/in. 4. Elongation ASTM D 638 150% 5. Deflection Temperature at 66psi ASTM D 648 155°F 6. Brittleness Temperature ASTM D 746 -15°F PVC (Water Distribution System Material) Test Method Properties 1. Tensile Strength ASTM D 638 7500 psi 2. Flexural Modulus ASTM D 790 560 x 103 psi 3. Izod Impact 140°F ASTM D 256 1.26 ft. lb/in. notch 4. Izod Impact at –40°F ASTM D 256 .035 ft. lb/in. notch 5. Deflection Temperature at 66psi ASTM D 648 169°F Permanence Tests: Test Method Polyethylene PVC 1. Outdoor Weathering ASTM D 1435-65T Complete Protection Excellent 2. Accelerated Weathering ASTM E 42 Very Resistant Very Resistant 3. Normal Exposure to Sunlight Complete Protection Complete Protection 4. Accelerated Exposure to Sunlight FADEOMETER Complete Protection Complete Protection Chemical Properties: Test Method Polyethylene PVC 1. Weak Acids ASTM D 543 Very Resistant No Effect 2. Strong Acids ASTM D 543 None to Slight None to Slight 3. Weak Alkali ASTM D 543 Very Resistant No Effect 4. Strong Alkali ASTM D 543 Very Resistant No Effect 5. Salts ASTM D 543 Resistant No Effect 6. Sea Salts ASTM D 543 Resistant No Effect