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SECTION 22 66 00
CHEMICAL AND SPECIAL WASTE SYSTEMS
 
 
Copyright 2016 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** IPEX USA LLC; chemical waste systems.
This section is based on the products of IPEX USA LLC, which is located at:
10100 Rodney St.
Pineville, NC 28134
Toll Free Tel: 800-463-9572
Email: request info (specifications@ipexna.com)
Web: www.ipexna.com
[ Click Here ] for additional information.
Leader in Thermoplastic Piping Systems.
IPEX USA LLC supplies one of the world's most diverse lines of integrated thermoplastic piping systems, pipe, valves, fittings, auxiliary components and tools all engineered from the ground up to handle the full range of today's municipal, industrial and electrical applications. More than 50 years' experience in plastics combined with efficient distribution centers and coast-to-coast customer support has made the IPEX name synonymous with quality, innovation and performance.
When you choose IPEX, you can be confident that all your piping materials are designed, built and backed by one company. One supplier to stand behind you and your complete system.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
PP pipe and fittings.
B.
PVDF pipe and fittings.
C.
Double-containment Chemical/ Special Waste PP piping and fittings.
D.
Double-containment leak detection systems.
E.
Neutralization tanks.
F.
Neutralization monitoring system.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 22 11 13 - Facility Water Distribution Piping.
B.
Section 22 11 13 - Facility Water Distribution Piping.
C.
Section 22 10 00 - Plumbing Piping.
D.
Section 22 15 00 - General Service Compressed-Air Piping.
E.
Section 22 67 00 - Process Water piping for Laboratory and Healthcare.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
ASTM International (ASTM):
1.
ASTM D635 - Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position.
2.
ASTM D2321- Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications.
3.
ASTM D4101 - Standard Specification for Polypropylene Injection and Extrusion Materials.
4.
ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
5.
ASTM F1290 - Standard Practice for Electrofusion Joining Polyolefin Pipe and Fittings
6.
ASTM F1412 - Standard Specification for Polyolefin Pipe and Fittings for Corrosive Waste Drainage Systems.
7.
ASTM F1668 - Standard Guide for Construction Procedures for Buried Plastic Pipe.
8.
ASTM F1673 - Standard Specification for Polyvinylidene Fluoride (PVDF) Corrosive Waste Drainage Systems.
B.
National Science Foundation (NSF):
1.
NSF 14 - Plastics Piping System Components and Related Materials.
C.
Underwiters Laboratories (UL):
1.
UL 723 - Standard for Test for Surface Burning Characteristics of Building Materials.
1.4
DEFINITIONS
 
** NOTE TO SPECIFIER ** Delete any abbreviations that are no longer relevant after the sections has been edited.
 
A.
DWV: Drain, waste, vent.
B.
FRP: Fiber-Reinforced Plastic.
C.
FRPP: Flame-retardant polypropylene.
D.
HDPE: High-density Polyethylene.
E.
HMI: Human machine interface.
F.
LCD: Liquid crystal display.
G.
LED: Light emitting diode(s).
H.
NFRPP: Non-flame-retardant polypropylene.
I.
PP: Polypropylene pipe.
J.
PTFE: Polytetrafluoroethylene plastic (Teflon).
K.
PVDF - Polyvinylidene fluoride.
1.5
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: For each product type specified.
C.
Shop Drawings: Double containment piping systems:
1.
Piping, supports, spacing.
2.
Drain, vent, and joint details.
 
** NOTE TO SPECIFIER ** Delete subparagraph below if there is no wiring required.
 
3.
Wiring Diagrams: Signal, and control wiring.
D.
Coordination Drawings: Piping, specialties in relation to surrounding equipment and services.
1.
To scale: Show piping, equipment locations, and elevations.
2.
Field test reports.
3.
Operation and Maintenance data.
1.6
QUALITY ASSURANCE
 
** NOTE TO SPECIFIER ** Edit subparagraphs below as necessary.
 
A.
Regulatory Requirements:
1.
Utility company:
a.
Potable-water piping.
b.
Backflow prevention.
2.
Authorities having jurisdiction:
a.
Potable-water piping.
b.
Backflow prevention.
B.
Piping: Labeled and marked as determined by agency approved by authorities having jurisdiction.
C.
Standards compliance: ASTM F 645.
 
** NOTE TO SPECIFIER ** Delete paragraph below if there are no electrical devices specified.
 
D.
Electric Devices: NFPA 70, Article 100. Listed, labeled and marked by agency approved by authorities having jurisdiction.
 
** NOTE TO SPECIFIER ** Delete paragraph below if a double containment system is not specified.
 
E.
Double Containment Systems:
1.
Manufacturer to design and fabricate pipe and fittings. Minimum twenty years' experience.
2.
Contractor: Trained by manufacture or manufacturer appointed representative. Must be trained prior to installation.
F.
Source Limitations: Obtain piping, fittings, valves and accessory equipment from a single manufacturer.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
1.
Protect plastic piping from direct sunlight.
2.
Support plastic piping to prevent sagging and bending.
3.
Protect internal parts, valve ends, and specialties against corrosion, dirt, and damage.
4.
Store valves set in open position.
5.
Storage Indoors: For long term storage, use pipe racks to support the pipe continuously along its length.
6.
Storage Outdoors: Watertight enclosures off ground, covered with a light colored opaque protective cover that is well-ventilated.
7.
Enfusion Machine: Store in controlled environment until use.
B.
Handling: Comply with manufacturer's recommendations. Avoid damaging components.
1.
Large Valves: Operating handles or stems are not rigging points for slings.
1.8
PROJECT CONDITIONS
 
** NOTE TO SPECIFIER ** Delete this article if interruption of service is not required.
 
A.
Do not interrupt waste service without arranging temporary waste service.
1.
Owner or Owner's representative is to be notified a minimum of two days prior to service interruption.
2.
Do not proceed without written permission.
PART 2 PRODUCTS
 
2.1
MANUFACTURER
A.
Acceptable Manufacturer: IPEX USA LLC, which is located at: 10100 Rodney St.; Pineville, NC 28134; Toll Free Tel: 800-463-9572; Email: request info (specifications@ipexna.com); Web: www.ipexna.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
** NOTE TO SPECIFIER ** Delete Article if not required.
 
2.2
PP PIPE AND FITTINGS
 
** NOTE TO SPECIFIER ** Delete if not required.
 
A.
Basis of Design: IPEX USA LLC; Enfield PP Electrofusion Joint Corrosive/ Special Waste Drain, and Venting Piping System.
1.
Standards Compliance:
a.
ASTM D635.
b.
ASTM D4101.
c.
ASTM F1412.
d.
NSF 14.
2.
Material Requirements, piping and fittings: All piping to be schedule 40 or schedule 80.
a.
FRPP: NSF listed polypropylene type 110 or 210 conforming to ASTM D4101 and complying with ASTM F1412.
b.
NFRPP: NSF 14 listed and CSA certified polypropylene type 110 or 210 conforming to ASTM D4101 and complying with ASTM F1412.
c.
Flammability: per ASTM D635.
d.
Supplied Lengths:
1)
10 ft (3 m) FRPP.
2)
20 ft (6.1 m) NFRPP.
e.
Joints: Electrofusion weld; specifically, the IPEX Enfusion process.
1)
Joints Between Polypropylene and Other Piping Materials: Enfield adapters per manufacturer's recommendations.
f.
Fittings, End Connections: All fitting end connections to incorporate an integral heavy gauge nickel/chrome electrical resistance wire molded into the fitting body. Lead connections to be protected. Loose wire and other loose joint components are prohibited.
3.
Connecting piping for corrosive waste drain and venting system.
a.
Schedule 40 PP pipe complying with ASTM F1412 and NSF 14.
b.
Joints: Electrofusion weld; specifically, the IPEX Enfield Enfusion process.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
B.
Basis of Design: IPEX USA LLC; Labline PP Mechanical Joint Corrosive/ Special Waste Drain, and Venting Piping System.
1.
Standards Compliance:
a.
ASTM D635.
b.
ASTM D4101.
c.
ASTM F1412.
d.
NSF 14.
2.
Material Requirements: All piping to be schedule 40 or schedule 80.
a.
FRPP: NSF listed polypropylene type 110 or 210 conforming to ASTM D4101 and complying with ASTM F1412.
b.
NFRPP: NSF 14 listed and CSA certified polypropylene type 110 or 210 conforming to ASTM D4101 and complying with ASTM F1412.
c.
Flammability: per ASTM D635.
d.
Supplied Lengths:
1)
10 ft (3 m) FRPP.
2)
20 ft (6.1 m) NFRPP.
e.
Fittings: End Connections: All plastic, integrally molded union designed to lock into a machined groove on mating pipe. No metallic grab rings or clamps shall be allowed.
 
**NOTE TO SPECIFIER** Optional feature for use with either type of piping above. Delete if not required.
 
C.
Basis of Design: IPEX USA LLC; Floway Polypropylene Floor Drains and Cleanouts.
1.
Floor Drains:
a.
Models: Rated for pedestrian traffic.
 
** NOTE TO SPECIFIER ** Delete type not required.
 
1)
Floway Series F1000 - Adjustable.
2)
Floway Series F4000 - Non-adjustable.
b.
Outlet size:
 
** NOTE TO SPECIFIER ** Delete types not required.
 
1)
NPS 2 (DN 50).
2)
NPS 3 (DN 80.
3)
NPS 4 (DN 100).
4)
NPS 6 (DN 150).
 
**NOTE TO SPECIFIER** Optional feature. Delete if not required.
 
c.
Adjustment: 1-1/2 inch (38 mm) minimum with 1-1/2 inch (38 mm) adjustment.
 
**NOTE TO SPECIFIER** Optional feature. Delete strainer not required or delete both if no strainer is required.
 
d.
Strainer, Adjustable: 6 inch (152 mm) diameter.
e.
Strainer, Nonadjustable: 8-1/2 inch (216 mm) diameter.
f.
Body flange: 14-1/2 inch (368 mm) diameter.
g.
Flashing collar: non-puncturing style with weep holes.
 
**NOTE TO SPECIFIER** Optional feature. Delete if not required.
 
h.
Sediment basket.
i.
Funnel: 6 inch (152 mm diameter.
j.
Options:
1)
Gas tight plug.
2)
Allen head vandal-proof screws.
3)
Male iron pipe thread outlet.
2.
Adjustable Acid Waste Cleanout with Cover Plate:
a.
Nickel-Bronze body with polished Nickel-Bronze cover.
b.
Outlet Sizes:
1)
NPS 2 (DN 50).
2)
NPS 3 (DN 80.
3)
NPS 4 (DN 100).
c.
Cleanout size: 8-5/8 inch (219 mm) diameter.
d.
Stub: 12 inch (305 mm) long schedule 40 FRPP.
e.
Cover Plate: "AWWCO" stamped on cover. Nickel-bronze.
f.
Cleanout plug.
g.
Rate load limit: 2400 lbs (109 kg)
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.3
PVDF PIPE AND FITTINGS
A.
Basis of Design: IPEX USA LLC; Plenumline Mechanical Joint FR-PVFD Corrosive/ Special Waste Drain, and Venting Piping System.
1.
Standards Compliance:
a.
ASTM E84.
b.
ASTM F1673.
c.
UL 723.
2.
Material Requirements, Piping and Fittings: All piping to be schedule 40.
a.
Flame Retardant Polyvinylidene Fluoride (FR-PVDF): Kynar 740-02 conforming to ASTM F1673.
3.
Surface burning characteristics: Testing per ASTM E84 (UL 723).
a.
Flame Spread: 5.
b.
Smoke Development: 35.
4.
Supplied Pipe Lengths: 10 ft (3 m).
5.
Fittings, End Connections: All plastic, integrally molded union designed to lock into a machined groove on mating pipe. No metallic grab rings or clamps shall be allowed.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.4
DOUBLE-CONTAINMENT CHEMICAL/ SPECIAL WASTE PP PIPING
A.
Basis of Design: IPEX USA LLC; Encase, Polypropylene Double Containment Systems.
1.
Prefabricated double containment piping system; fabricated, installed and tested in accordance with IPEX's recommendations and as specified herein and shall be suitable for the intended service.
a.
Factory Welded joints: Butt fusion or enfusion weld only.
b.
Site Welded joints: Polypropylene enfusion couplings.
1)
Nickel/chrome resistance wire molded into coupling.
c.
All fittings will be preassembled and pre-tested by manufacture.
2.
Primary and Secondary Containment Piping and Fittings: Schedule 40 Polypropylene.
3.
ASTM D4101 Primary Piping Supports: Plates welded to the primary pipe.
a.
Anchoring plates at each end of fittings and pipe sections.
1)
Fit into recesses in the secondary pipe or fitting and welded to both primary and secondary pipes and fittings.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.5
DOUBLE-CONTAINMENT LEAK DETECTION SYSTEMS
 
** NOTE TO SPECIFIER ** Delete one of the two paragraphs below. Choose point leak detection or continuous cable leak detection.
 
A.
Point Leak Detection Systems:
 
** NOTE TO SPECIFIER ** Delete one of the two subparagraphs below or retain all.
 
1.
Above-Ground Leak Detection System:
a.
Basis of Design: IPEX USA LLC; Centra-Guard Leak Detection.
1)
Per Zone: Capacitive sensor station.
a)
External, non-intrusive sensor, drip leg and drain valve with hose connection.
2)
Sensor: LED testing lamp, adjusting potentiometer; removable for periodic testing. Not to penetrate containment piping nor contact with leaking media.
3)
Control console: NEMA 4X enclosure.
a)
Operating voltage: 120 VAC.
b)
Voltage to zone sensors: 24 VDC.
c)
Keyed on/off switch, keyed alarm silence switch, and common audible and visual alarm.
d)
Power indicator light.
e)
LCD display; continuous system operating conditions.
1)
Indicate date, time, zone, and type of alarm (break/short, sensor malfunction or leak) and store data in nonvolatile memory.
f)
HMI buttons; scroll through history, status, test screens, and alarm acknowledgement.
g)
An external output switch for accessory alarms; RS-232 communication port.
2.
Below-Ground Leak Detection System:
a.
Basis of Design: IPEX USA LLC; Centra-Guard Leak Detection.
1)
Per Zone: Capacitive sensor station.
a)
Internal, non-intrusive sensor, drip leg, and pump-out port.
 
** NOTE TO SPECIFIER ** Delete sensor if not required.
 
2)
Sensor: LED testing lamp, adjusting potentiometer; removable for periodic testing.
 
** NOTE TO SPECIFIER ** Delete control console if not required.
 
3)
Control Console: NEMA 4X enclosure.
a)
Operating voltage: 120 VAC.
b)
Voltage to zone sensors: 24 VDC.
c)
Keyed on/off switch, keyed alarm silence switch, and common audible and visual alarm.
d)
Power indicator light.
e)
LCD display; continuous system operating conditions.
1)
Indicate date, time, zone, and type of alarm (break/short, sensor malfunction or leak) and store data in nonvolatile memory.
f)
HMI buttons; scroll through history, status, test screens, and alarm acknowledgement.
g)
An external output switch for accessory alarms; RS-232 communication port.
B.
Continuous Cable Leak Detection:
1.
Basis of Design: IPEX USA LLC; PAL-AT Continuous Cable Leak Detection.
a.
Microprocessor based panel: Continuous monitoring of sensor string for leaks, breaks and shorts.
b.
Sensing range: Per cable.
c.
Alarm Units Operation: Pulsed energy reflection and capable of mapping entire length of sensor cable and storing the digitized system map in nonvolatile memory.
1)
Continuous indication sensor cable is being monitored.
2)
Enclosure: Modified NEMA 12 enclosure with two line by forty-character display providing status and alarm data.
d.
Monitoring Units:
1)
Power Source: 120 / 240 VAC, 50/100 VA, 50 / 60 Hz, single phase or 24 VDC, 24VA.
 
** NOTE TO SPECIFIER ** Keep the subparagraph below if communication with a PLC is required.
 
2)
SPDT Output Relay: 250 VAC, 10 A; one common and one per cable.
3)
Alarm Horn: 75 dB chime.
 
** NOTE TO SPECIFIER ** Delete one of the two following paragraphs.
 
a)
Field connected.
b)
Factory mounted.
4)
Red LED illuminated when any cable is in alarm.
5)
Provide connections for intrinsically safe sensor circuits for use in Class 1, Division 1, Group C and D or Zone 0, Group II B Hazardous Locations.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
a)
UL Listed.
b)
FM Approved to provide connections for intrinsically safe sensor circuits for use in Class 1, Division 1, Group C and D Hazardous Locations.
e.
Sensor cables, connectors, probes and jumpers: Supplied by the manufacturer of the monitoring units.
f.
Software: Will allow manufacturer too remotely or on-site interface through the RS-232 serial port for trouble shooting and diagnostics.
g.
Will operate the PAL-AT monitoring units and retrieve each of the stored reference maps and current condition TDR traces.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.6
NEUTRALIZATION TANK
A.
Basis of Design: IPEX USA LLC; Neutratank, Limestone Neutralization System.
 
** NOTE TO SPECIFIER ** Delete type not required.
 
1.
Material: High-density polyethylene (HDPE).
2.
Material: Polypropylene (PP).
3.
Characteristics:
a.
Construction: Rotationally molded, seamless.
b.
Capacity:
 
** NOTE TO SPECIFIER ** 5 gallon to 2000 gallon (19 liters to 7571 liters) capacity tanks are available.
 
1)
(Gallons / Liters): ______.
2)
Diameter: 32 in (813 mm).
3)
Height (in / mm): ______.
 
** NOTE TO SPECIFIER ** Delete extension not required.
 
4)
Extension: Adjustable.
5)
Extension: Non-adjustable.
c.
Inlet and outlet:
 
** NOTE TO SPECIFIER ** Delete end types not required.
 
1)
Plain End: HDPE.
2)
Plain End: PP.
3)
(NPS / DN): MPT.
4)
(NPS / DN): FPT.
5)
(NPS / DN): Flanged.
d.
Optional Vent: NPS 1-1/2 (DN 40).
e.
Limestone chips: Tank to be filled to just under the tank outlet.
f.
Lid: Flanged and bolted.
 
** NOTE TO SPECIFIER ** Delete lids not required.
 
1)
Flat HDPE - non-load bearing for Flush Floor Installations.
2)
Flat PP - non-load bearing for Flush Floor Installations.
3)
Standard Domed HDPE - Non-load bearing.
4)
Standard Domed PP - Non-load bearing.
5)
Steel cover, pedestrian-rated, HDPE.
6)
Steel cover, pedestrian-rated, PP.
g.
Optional Reinforcement:
1)
FRP Wrap
 
** NOTE TO SPECIFIER **Delete article if not required.
 
2.7
NEUTRALIZATION MONITORING SYSTEM
A.
Basis of Design: IPEX USA LLC; Neutrasystem 2 pH Monitoring System.
1.
Enclosure: Nema 4X.
2.
Monitoring and alarm Panel: UL 508.
a.
Internal alarm horn and silencing button.
b.
Lights: Power "On," "System OK," and "pH Alarm."
c.
Pen recorder: 31-day strip chart.
3.
pH Electrode: CPVC encapsulated.
a.
Double junction combination 6510 extended-use.
b.
Sensing surface: Flat with twist lock connection.
c.
Response time: 5 to 10 seconds.
4.
Sampling Tank:
a.
Material: Polyethylene (PE),
b.
Characteristics:
1)
Construction: Seamless.
2)
Capacity: 5 gallons (18.9 liters).
PART 3 EXECUTION
 
3.1
EARTHWORK
A.
Refer to applicable sections in Division 31 for excavating, trenching, and backfilling.
3.2
EXAMINATION
A.
Verification of Conditions: Examine areas and conditions under which Work is to be performed and identify conditions that may be detrimental to proper or timely completion.
1.
Rough-in for water-supply, sanitary drainage and vent piping systems: Verify locations; pipe and connection.
2.
Walls and partitions: Suitable thickness.
B.
Fixture and Valve Interiors: Clean and free of foreign matter, and corrosion. Remove packing used to prevent disc movement.
1.
Operate valves from fully open to fully closed positions.
2.
Verify guides and seats are clean and free of foreign matter, and corrosion.
C.
Threads on Valves Fittings and Fixtures: Inspect valve and mating pipe for form and cleanliness.
D.
Mating Flange Faces: Inspect for conditions that may cause leaking.
1.
Bolting: Proper size, length, and material.
2.
Gaskets: Proper size and material composition suitable for application; defect and damage free.
E.
Replace defective fixtures and valves with new.
F.
Do not proceed until unsatisfactory conditions have been corrected.
3.3
PIPING INSTALLATION
A.
Job start-up by Manufacturer's Representative strongly recommended.
B.
If specific installation details are not indicated, install per piping manufacturer's written instructions and according to ASTM D2321 and ASTM F1668.
C.
All Fixtures: level and plumb.
1.
Install pipes at indicated slopes, pitched in direction of flow.
D.
Attach all support framing to building substrate per manufacturer's written instructions.
E.
Wall-mounted fixtures: Pressure-reducing valves to be downstream of shutoffs.
 
** NOTE TO SPECIFIER ** Omit paragraph below if not in an active seismic zone.
 
F.
Seismic restraints to be installed on piping.
G.
Conceal piping whenever possible except in equipment rooms and service areas.
1.
Diagonal pipe runs are prohibited.
2.
No sagging or bending
H.
Escutcheons and wall flanges: Wall piping penetrations finished locations.
I.
Joints between fixtures and walls: Seal with silicone sealant:
1.
Sanitary, one-part, mildew-resistant. Match colors.
J.
See appropriate sections in Division 33 for common requirements for utility piping.
K.
Pipe joints: Per manufacturer's written instructions.
1.
Electrofusion Joints: Per ASTM F 1290.
2.
Join dissimilar pipe materials with adapters compatible with pipe materials being joined.
 
** NOTE TO SPECIFIER ** Retain and edit first paragraph below for piping with gasketed joints; delete if not required.
 
a.
Underground piping: Restrained joints at directional changes both horizontal and vertical.
1)
Restrained-joint piping, thrust blocks, anchors, tie-rods and clamps, and other supports.
L.
Anchorages
 
** NOTE TO SPECIFIER ** Remove or add to subparagraphs below as required. Anchorages are used for tees, plugs and caps, bends, crosses, valves, and hydrant branches.
 
1.
Thrust blocks.
2.
Pipe clamps and tie rods.
3.
______.
M.
Restrained joints:
 
** NOTE TO SPECIFIER ** Remove or add to subparagraphs below as required.
 
1.
Mechanical.
2.
Set-screw retainers.
3.
Flanged.
4.
Heat-fused.
5.
______.
3.4
LEAK-DETECTION AND MONITORING SYSTEM INSTALLATION FOR DOUBLE CONTAINMENT PIPING
A.
Install panel where indicated on drawings.
B.
System manufacturer to provide factory trained personnel for pre-installation meeting and installation of sensors and electronics.
3.5
CONNECTIONS
A.
Waste piping:
1.
Sanitary sewerage system.
a.
See appropriate sections in Division 22 that cover sanitary sewerage connections.
2.
Storm-drainage system.
a.
See appropriate sections in Division 33 that cover storm-sewer connections.
3.6
NEUTRALIZATION TANK AND SYSTEM INSTALLATION
A.
Exterior Installation: Add initial limestone charge per manufacturer's instructions.
1.
Tank covers:
a.
Flush with pavement surface.
b.
Above finished surface (in / mm): ______.
B.
Interior Installation: Add initial limestone charge per manufacturer's instructions.
1.
Set tank on flat level surface or concrete base:
a.
See sections in Division 03 that refer to cast-in-place concrete for specifications on concrete bases.
3.7
FIELD QUALITY CONTROL
 
** NOTE TO SPECIFIER ** Revise this article to suit requirements of authorities having jurisdiction.
 
A.
Test per authorities having jurisdiction to a maximum pressure of the lowest pressure-rated appurtenance in the system.
B.
Piping Tests: prior to covering and after curing and setting of concrete thrust blocks. Fill and pressurize pipeline to test pressure a minimum of 24 hours before testing.
1.
. Use potable water.
C.
Testing, Single-Wall Piping:
1.
Hydrostatically test in accordance with local authority having jurisdiction or with a maximum of 10 ft. (3 m) of head pressure.
a.
Fully inspect installed piping for evidence of mechanical abuse and suspect joints.
b.
Split the system into convenient test sections, not exceeding 1,000 feet (305 ft).
c.
Prior to starting the test in below grade applications, straight lengths of pipe should be backfilled between fittings that are tested.
d.
Slowly fill the pipe section with water, taking care to evacuate all trapped air in the process.
e.
Allow a minimum of one hour for temperature equilibrium to be achieved in test section before pressurizing.
f.
Visually check test section for leaks.
g.
Pressurize the system to a suggested maximum of 10 feet (3 m) of head by means of a standard 10 foot (3 m) standing water test using a 10 foot (3 m) vertical riser, or a low-pressure hand pump.
h.
Leave the line at 10 feet (3 m) of head for a period of 2 hours, during which time the water level should not change, nor should the pressure gauge reading change (hand pump test).
1)
If there is a significant drop in pressure, or extended times are required to achieve the desired pressure, either joint leakage has occurred or air is entrapped.
a)
Remove air pockets if present.
b)
Repair leaking joints per manufacturer's recommendations.
2.
Remake leaking joints with new materials and repeat test until leakage is within allowed limits.
D.
Testing, Double Containment Piping:
1.
Primary Pipe - Hydrostatic Test:
a.
Hydrostatically test in accordance with local authority having jurisdiction or with a maximum of 10 ft. (3 m) of head pressure.
1)
Repeat steps as outlined in this Article, Paragraph C.
2.
Secondary Pipe - Hydrostatic Test:
a.
Do not initiate until you have successfully completed the primary pipe 10 foot (3 m) head test.
b.
Do not drain the primary pipe, leave the primary pipe at 10 foot (3 m) head hydrostatic pressure.
c.
Fill the secondary pipe with water and repeat steps as outlined in this Article, Paragraph C.
3.
Secondary Pipe - Air Testing:
a.
To be completed if it is determined by the engineer and/or authority having jurisdiction that a hydrostatic test is not possible.
b.
Do not drain the primary pipe, leave the primary pipe at 10 foot (3 m) head hydrostatic pressure.
1)
Fill the secondary pipe with air to a MAXIMUM of 5 psi (3.5 kPa) for 1 hour.
2)
Exposed secondary should be wiped with an IPEX approved leak detector
3)
Continuously check the pressure gauge to ensure that there is no pressure decay.
E.
Prepare test and inspection reports.
3.8
IDENTIFICATION
A.
Comply with requirements for identification specified in Section 23 05 53 - Identification for HVAC Piping and Equipment "Identification for Plumbing Piping Systems."
B.
Comply with requirements for identification specified in Section - "Identification for Electrical Systems."
C.
Continuous underground detector tape is to be installed during backfilling.
1.
Below finished grade, over piping.
a.
See relevant sections in Division 31 for detector tape specification.
3.9
STARTUP
A.
Complete installation and startup checks according to manufacturer's written instructions.
1.
Installed per Contract Documents.
a.
Neutralization system:
1)
Limestone.
b.
Leak-Detection.
c.
Electrical wiring:
1)
Energize circuits.
d.
Run all systems through full operation sequences.
1)
Adjust controls.
3.10
ADJUSTING
A.
Set points: Neutralization system.
B.
Device Settings: Leak-detection.
C.
Replace damaged fixtures, fittings, and controls.
3.11
CLEANING
A.
As prescribed by:
 
** NOTE TO SPECIFIER ** Delete one of the following paragraphs.
 
1.
Authorities having jurisdiction.
2.
Owner.
B.
Purge all piping including existing altered piping.
1.
Flush piping system with appropriate reagent.
C.
Remove paint spots, dirt, and debris. Damaged finish to match original finish.
D.
Clean fixtures, according to manufacturer's written instructions.
E.
Provide protective covering for installed fixtures.
F.
Not to be uses for temporary facilities without written approval by Owner.
G.
Prepare reports: Flushing and testing.
END OF SECTION