Waterworks Solutions Presentation By Michael Rullo, Smith-Blair Corporation
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Waterworks Solutions PresentationBy Michael Rullo, Smith-Blair Corporation
Smith-Blair Corporation
The Global Leader in Waterworks Fabrication since 1939
Smith-Blair's 44 acre site in Texarkana, Arkansas, builds and ships thousands of products globally each day and employs over 200 people.
water & industrialwater 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.
Steel Couplings
TappingSleeves
FlangedCouplingAdapters
Restraints
What can BLUE do for you?
What Causes Water Main Breaks?
Natural Disasters
Severe storms, floods, hurricanes and tornadoes can dislodge or overwhelm mains, fire hydrants, valves and other distribution
system components.
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.
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.
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.
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.
Defective or Improper Fittings and Connections
Leaks occur when pipes are improperly connected, bolts are incorrectly tightened, or a rubber gasket is improperly placed.
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.
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.
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.
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.
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.
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.
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.
Arrived at Job-Site Monday AM
SOLUTIONFull Circle Repair Clamps
200 Series
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
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
SOLUTION:Full Circle Redi-Clamps
240 Series
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
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
Service ConnectionRepairs
SOLUTION:Service Saddles
300 Series
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” taps1-¼, 1- ½ and 2” CC taps
6” thru 18”, with 3” and 4” NPT taps
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
SOLUTION:Bolted Couplings
400 Series
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
SOLUTION:Top Bolt
Coupling System
421 – Top Bolt
Wide Range Easy to Install – one
bolt on each end to tighten Stab Insertion of
pipe ends 260 PSI Rating
Special Fabrication Products
Model 670 Bell Pack Clamp
36” Bell Repair Coupling
Stainless SteelCut-in Tee
TESTING
The Process of Repairing Water Main Breaks
• 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?
Prioritizing Repairs
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.
Notifying Customers
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
Notifying Other Utilities
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
Identifying Equipment, Materials and Personnel
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.
Pinpointing the Location of the Leak
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.
Excavating for Leak Exposure
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.
Evaluating the Pipe Damage and Leak
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.
Multiple or Complex Leaks
The following are types of breaks that should be considered and planned for BEFORE they happen:
Complex Main Breaks
•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
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