Waterworks Solutions Presentation By Michael Rullo, Smith-Blair Corporation

Transcription

1 Waterworks Solutions Presentation By Michael Rullo, Smith-Blair Corporation

2 Smith-Blair Corporation The Global Leader in Waterworks Fabrication since 1939

3 Smith-Blair's 44 acre site in Texarkana, Arkansas, builds and ships thousands of products globally each day and employs over 200 people.

4 water & industrial water product solution center Our commitment to excellence has produced a vast range of products for pipe joining, restraining, tapping, coupling and repairing for the water markets throughout the world.

5 Steel Couplings Restraints Tapping Sleeves Flanged Coupling Adapters

6 What can BLUE do for you?

7 What Causes Water Main Breaks?

8 Natural Disasters Severe storms, floods, hurricanes and tornadoes can dislodge or overwhelm mains, fire hydrants, valves and other distribution system components.

9 Weather and Environmental Change Thermal expansion and contraction from the effects of freezing and thawing damage distribution systems. In hot weather, a shallow depth of cover can result in water quality problems and customer complaints.

10 Ground and Soil Movement Breaks or leaks that have washed out bedding and fill material, asphalt or other surface treatment can expose the pipe or cause it to rupture, causing extensive damage.

11 Defective and Aging Pipes Chemical reaction of the water, the by-products of the internal chemical reaction, and the activity of corrosive soils externally all cause deterioration of pipe materials potentially causing the pipe to break, burst, crack and split.

12 Tuberculation Localized corrosion results in knoblike mounds of rust that builds up more quickly in a compromised pipe. As a result, water flow through the pipe is reduced, making it impossible to maintain adequate water pressure and ultimately leading to breaks and cracks.

13 Defective or Improper Fittings and Connections Leaks occur when pipes are improperly connected, bolts are incorrectly tightened, or a rubber gasket is improperly placed.

14 Water Hammer and Pressure Surges Compromised pipe material can be blown out by water hammer or pressure surges resulting in enormous water loss and tremendous cleanup effort.

15 Corrosion Internal/External When water gets between the lining and the inside pipe, it causes tuberculation. External integrity is compromised when the pipe is placed on improper bedding, causing corrosion.

16 Poor Design or Inspection Designers of water conveyance systems must determine the minimum diameter and thickness of the pipe to effectively withstand a range of pressure. Otherwise, a main break will result.

17 Improper Construction Practices If proper consideration is not given to pipe support, securely tightened fittings, proper placement of rubber gasket, thrust blocks and restraint fittings then movement will cause leaks.

18 Traffic Loads and Insufficiently Deep Cover Insufficient depth of cover above the mains can contribute directly to breaks and leaks when there is a heavy traffic load.

19 Unmarked or Mismarked Water Mains If an excavator encounters an unidentified water main, the excavation equipment could slice through it or dig it up, likely breaking or damaging the pipe in the process.

20 Construction Damage In some cases, the contractor may cause the leak or break. Not only must the pipe be repaired, but often the affected area must be dried out, or the oversaturated soil must be removed and replaced.

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22 Arrived at Job-Site Monday AM

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24 SOLUTION Full Circle Repair Clamps 200 Series

25 226 Single Band 2 thru 14 pipe size Max working pressure Up to 300 PSI Temperature Range -20 F to +180 F Full Circle method of repair

26 261 All Stainless Steel 2 thru 12 pipe size Max working pressure Up to 150 PSI Temperature Range -20 F to +180 F Full Circle method of repair

27 SOLUTION: Full Circle Redi-Clamps 240 Series

28 244 Full Circle with Ductile Lug 1/2 thru 2 pipe size Max 150 PSI Allowable working pressure determined by size of the pipe Temperature Range -20 F to +180 F

29 245 Stainless Steel with Ductile Lug 1/2 thru 12 pipe size Max working pressure Up to 250 PSI Temperature Range -20 F to +180 F Allowable working pressure determined by size of the pipe

30 Service Connection Repairs

31 SOLUTION: Service Saddles 300 Series

32 313 Double Bale Service Saddle Ductile Iron Body Flexi- Coat with Carbon Steel Bales Nom. Sizes in 1- ¼ thru 24 with ¾ and 1 NPT taps - 5/8, ¾ and 1 CC 2 thru 24, with 1-1/4, 1- ½, 2 and 2- ½ taps 1-¼, 1- ½ and 2 CC taps 6 thru 18, with 3 and 4 NPT taps

33 315 Service Saddle TaperSeal Ductile Iron Body with Stainless Steel Straps Fusion bonded Flexi- Coat Nom. Sizes in 1 thru 14 with 5/8, ¾ and 1 CC taps- ¾,1 NPT 2 thru 14, with 1- ¼ 1- ½ CC taps- 1- ¼, 1- ½ and 2 NPT

34 SOLUTION: Bolted Couplings 400 Series

35 441 OMNI Coupling System Ductile Iron Sleeve and Flanges Versatile, straight, transition and reducing coupling 2 thru 16 Stab Insertion of pipe ends 250 PSI Rating

36 SOLUTION: Top Bolt Coupling System

37 421 Top Bolt Wide Range Easy to Install one bolt on each end to tighten Stab Insertion of pipe ends 260 PSI Rating

38 Special Fabrication Products

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41 Model 670 Bell Pack Clamp

42 36 Bell Repair Coupling Stainless Steel Cut-in Tee

43 TESTING

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46 The Process of Repairing Water Main Breaks

47 Prioritizing Repairs Is the main critical to a portion of the system or the entire system? Are any critical institutions on that main? Are any special-needs customers in the affected area? Did the break result in extensive damage? How long has the pipe been leaking? What is the leakage rate of the break? Are there any major traffic safety concerns? Are the necessary components available?

48 Notifying Customers Prior to the repair, or as part of the process, all affected customers should be notified. If it appears that repairs will be extensive and take several days, affected customers should be advised to store enough water for their essential uses until service is restored. The water provider should provide an alternate water supply.

49 Notifying Other Utilities The main requiring attention may be adjacent to another underground utility, such as gas or electric, causing repair or replacement to be difficult and time consuming. The water utility should be prepared to share the following information: How their service will be affected by the break Alternative service options A designated contact person for regular updates or changes

50 Identifying Equipment, Materials and Personnel The damage to the pipe will dictate what is used for repairs. The following are examples of breaks and leaks: A point break (pinhole leak) A latitudinal or longitudinal break A section or partial blowout as a result of a pressure surge Damage to the majority of the pipe A corrosion leak A defective fitting A loose bolt or improperly placed rubber gasket

51 Pinpointing the Location of the Leak The use of leak detection equipment by staff or contractor reduces the time spent trying to find the leaks while accuracy of pinpointing the location greatly improves.

52 Excavating for Leak Exposure Skillful operators are sensitive enough to underground utilities and obstructions that they are able to expose the damaged main or service effectively without causing additional problems such as damaging another utilities infrastructure or further destroying the water line being exposed.

53 Evaluating the Pipe Damage and Leak It s important to inspect not only the pipe but the soil around it and any adjacent connections, fittings and/or structures when evaluating the cause of the leak and condition of the pipe. The soil around the pipe or fittings may be corrosive and instrumental in the process of degradation.

54 Multiple or Complex Leaks When the leak is exposed and several previous repairs are evidenced by repair clamps or other repair devices a short distance from the latest break, it s better to replace a larger portion of the pipe or even the entire section.

55 Complex Main Breaks The following are types of breaks that should be considered and planned for BEFORE they happen: A break involving one or more section of pipe fitting A break at a fire hydrant branch line or service connection A break on a large-diameter pipe at a tapping-valve connection A break adjacent to, just above, or just below another utility

56 What can BLUE do for you?

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