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1
Fiberglass manway extensions for 3 foot standard bury depth
- Standard inside diameters are: 20" - 24" - 30" - 36"
- Stainless steel hardware and gaskets included
- Specify bury depth if other than 36 inches
- Slip-In poly plug covers available for manhole or street box applications
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2
4 inch I.D. cam-lock inspection hatch for bolted FRP covers
- Cast aluminum with brass closure arms for padlock
- Includes NPT female fitting on manway cover
- Used to visually check level without removing cover bolts
- May be used for refilling at 50 PSI maximum pressure
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3
30 inch I.D. fiberglass manway with easy access hinged cover
- Available only on 30" ID size
- Hinged overlapping "shoe box" style cover conforms to AWWA potable standards
- Includes stainless hardware and manway gasket
- Hinged cover flanges have holes for a padlock (by others)
- Specify bury depth if other than 36 inches
- Less secure than bolted design against forced entry by vandals
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4
48 inch I.D. weather tight manway enclosure vault for 36 inch bury depth
- Overlapping domed dust cover with 2 stainless handles
- Chain set and lock are not included (by others if needed)
- 20 inch ID internal manway recommended for space
- Manway may be centered or offset inside enclosure to make room for tank fittings
- Some field assembly required
- Specify bury depth if other than 36 inches
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5
24 and 30 inch O.D. ring collar for low cost plastic culvert riser pipe
- Plastic corrugated culvert pipe riser not included (by others)
- Cover at grade not included
- Not considered water tight
- Commonly used on septic tanks and rain collection tanks
- Field assembly required
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6
Fiberglass tank ladders with mounting brackets installed
- Standard OSHA designs
- Stainless steel hardware
- Shipped loose and must be field assembled inside tank
- Specify NSF potable water use when appropriate
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7
Locking steel grade box with aluminum cover for security
- Aluminum treadbrite cover is not rated for automobile traffic
- Drop handle and flange holes for a padlock (by others)
- Specify internal bolted or poly plug cover as needed
- Shop iron oxide primer finish supplied on steel frame
- Often used in public areas
- Available with 26", 32", or 36" square internal opening
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8
20" x 30" polyethylene manway extension for 36 inch standard bury depth below grade
- Gray color, UV resistant
- Overlapping hinged cover with dust seal and padlock hasp
- Easy access with ample knee and shoulder room
- Tank entry opening 20" ID
- Upper portion inside diameter 30 inches at hinged cover
- Includes internal safety cover at tank entry point
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9
20 inch I.D. segmented spool type polyethylene manway extension
- Each flanged section is 18 inches tall - face to face
- Stack and bolt as needed
- Includes one gasket and stainless bolt kit per section
- Grey color, UV resistant
- Specify bolted or plug cover
- Can UPS ship individually
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10
3 inch water level inspection hatch for polyethylene cover
- Cast aluminum with brass closure arms for padlock (by others)
- Includes 3 inch bolt-in fitting
- Used to visually check water level without removing cover bolts
- May be used for refilling at 50 PSI maximum pressure
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11
4", 6", & 8 inch PVC vent heads
- Stainless steel insect screen inside (8 mesh standard)
- Slotted external poly guard
- Includes NPT female tank fitting and PVC adapter
- PVC riser pipe by others as needed for proper height
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12
High water level control
- Prevents riser "freeze-off" from overfilling tank above full level
- Diverts excess water slowly into backfill material
- Includes check valve & filters
- Includes NPT 2" female tank fitting
- Do not use when tank is connected to a well or city water line supply
- For truck water delivery only
- Often used on Fire Cisterns
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13
4, 6, & 8 inch overflow assemblies
- Diverts excess water to remote daylight discharge area
- Includes swing check valve and heavy metal rodent guard
- Includes PVC stub pipe and hump hose rubber flex connector at tank
- PVC piping run by others
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14
6 inch NST- Male dry fire hydrant for suction water supplies
- Aluminum NFPA construction with metal cap and chain lanyard
- Removable strainer plate
- 45, 90, or straight PVC fitting choice below head
- NFPA anti-vortex plate and 6 inch internal draw pipe
- Includes 6 inch female NPT tank fitting and PVC adapter
- PVC riser pipe by others
- Female swivel and Storz hydrant heads also available
- Some field assembly required
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15
Siamese refill 2.5" X 2.5" NST with clappered female swivels
- Brass NFPA construction
- Includes top and bottom adapters for PVC riser pipe
- Includes 4" NPT tank fitting
- Refill pressure 50 PSI max.
- PVC riser pipe by others
- Some field assembly required
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16
4 inch through 12 inch flanged fittings with gussets
- May be installed anywhere on tank heads or shell
- Standard ANSI 150# flat flange face and bolt pattern
- Gasket and bolts by others
- Available in standard pipe sizes through 12 inch
- Tangential shell placement at additional cost
- Consider using flexible pipeline couplings at all tank fittings
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17
Anti-vortex blades in bottom suction fittings
- Used on any outlet line feeding a pump or fire hydrant
- Decreases water swirl to improve flow rate when tank nears empty
- Available on flanged or threaded fittings of all sizes
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18
NPT tapered fiberglass female pipe thread full and half couplings
- May be installed anywhere on tank heads or shell
- Available in standard pipe sizes through 8 inch
- Use full couplings when threads are required both inside and outside the tank
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19
4 inch through 16 inch PVC stub pipe bonded through tank head or shell
- May be installed anywhere on tank heads or shell
- Tangential placement at additional cost
- Connection point for piping both inside or outside tank
- Consider using flexible pipeline couplings at all tank fittings
- Suitable for connection with a rubber ring mechanical joint (MJ) or compression fitting
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20
Rubber flex member for flanged fiberglass fitting applications
- Mates up with standard 150# ANSI flange and bolt pattern
- Includes one gasket & stud kit for tank side of coupling only
- Includes poly protective wrap
- Rated at 75 PSI working pressure
- Available in standard pipe flange sizes through 12 inch
- Not NSF listed but suitable for potable water applications
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21
Stainless flex members with male tapered pipe threads for pressure inlet and pumped discharge
- Heavy clear vinyl jacket or stainless steel braid
- Includes 1 reinforced PVC schedule 80 pipe adapter
- Vinyl jacket version rated at 25 psi, allows maximum flexibility
- Braided jacket version rated at 75 psi, but is less flexible
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22
4, 6, & 8 inch Hump Hose low pressure flex couplers for PVC stub pipe connections
- Rated for 25 psi working pressure
- Fits schedule 40 PVC pipe
- Connects to tank stub pipe
- Stainless clamps included
- Often used on wastewater treatment tanks, overflow connections, and rainwater collection inlet lines
- Install at or above full tank water level
- Not for use in bottom of tank discharge flex applications
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23
Darco brand Maxi-Flex coupler for low pressure applications
- Stainless body with PVC ends
- Far more flexible in all directions than traditional rubber types
- Suitable for seismic areas and expansive clay soils
- Commonly use as a discharge flex on Fire Service tanks
- Available with PVC flanges or socket ends
- Different configurations and PVC adapters are available
- Rated at 25 PSI working pressure only when buried below grade
- Price varies with fitting ends and adapters required
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24
Submerged water inlet filter
- Manway mount on brass 1 inch pitless adapter
- Uses universal filter cartridges
- Easily removed for filter change
- Includes 1" feed line stainless flex member and PVC adapter
- Includes adjustable bypass pressure relief valve
- Must be field installed
- Requires hole saw and grinder work on site
- Installation must comply with local plumbing codes
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25
Float valve water inlet control
- Manway mount on brass 1 inch pitless adapter
- Adjustable float arm for proper air space at top of tank
- Brass piping and backflow check valve included
- Includes 1" feed line stainless flex member and PVC pipe adapter
- Field assembly and piping required
- Requires hole saw and grinder work on site
- Installation must comply with local plumbing codes
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26
Pump mounting platform bonded to tank floor
- 24" x 24" flat fiberglass surface
- Raised 6" above floor for bolt access below platform
- Rated for 250 pound maximum pump weight
- Field drill to mount equipment
- Shield tank wall when drilling downward through platform
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27
Water level gauge - mechanically float actuated
- Requires no electric power
- Metal guage body with weather proof clear viewing lens
- Reads to 108 inches maximum water depth
- Includes NPT female tank fitting
- Must be field assembled and calibrated by the installer
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28
1 & 2 inch brass pitless adapters
- Brass female pipe thread connections
- Rated at 75 PSI working pressure
- Includes braided stainless flex member & PVC pipe adapter
- Often used with submersible pumps or equipment
- Lift up slider to easily withdraw pump or equipment for service
- Field installation requires hole saw and grinder work on site
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29
Darco submersible bottom suction high pressure pump
- 120 VAC - 1/2 HP - 50 PSI - 20 GPM discharge capacity
- Plugged port for optional pressure relief valve
- For household water supply use or low volume irrigation
- Assembly mounts on 1 inch pitless adapter in manway
- Lift up to easily remove pump
- Includes 1" ss flex member
- Installation requires hole saw and grinder work on site
- Use float tree and level control float switch kits as needed
- Installation must comply with local plumbing codes
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30
PVC float tree and level control float switch kits
- Sliding adjustable float position design
- Includes 2 mounts with stainless steel hardware
- Used to control pumping functions - up or down
- Includes one 3 wire, 12 amp (non mercury) SP/DT switch
- 1" PVC drop pipe by others
- Installation must comply with local electrical codes
- Additional switch kits available
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31
Alarm panel for high level or low level water volume alert
- 120 VAC power required
- Sealed box mounts on post by tank or inside building
- Flashing red light and buzzer
- Alarm silence switch on outside surface of panel
- Includes float tree and 1 level control float switch kit
- Field assembly required
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32
Fiberglass "half round" deadman forms for on-site pouring
- 12 feet long / may be sawed down for shorter applications
- Ships along side tank on trailer
- Reuseable if oiled before pouring concrete
- Follow Darco deadman size and rebar location details in manual
- Must be fully supported with compacted soil before pouring
- Use split cardboard caisson tubes when deadmen must be poured before tank delivery
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33
Anchor strap and cable kits
- Each kit contains 1 fiberglass strap with forged steel eyes or hooks at both ends
- Includes one Darco ratcheting strap tensioning tool (per tank)
- Includes 2 galvanized ½" steel connection cables and 6 clamps per strap assembly
- No turnbuckles are required
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34
Bonded 24" dia. bottom sump
- One piece - molded into tank
- 24" in diameter x 12" deep
- Suitable to locate submersible pumps up to 150 pounds
- Allows complete tank volume discharge through suction pipe
- Can incorporate an anti-vortex plate for NFPA suction hydrant compliance when needed
- Anti-vortex plate not included
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35
Bolt-on 24" diameter bottom sump
- Allows complete tank volume water usage
- Often used for submersible or vertical turbine pumps
- Bolted design with 32" total depth below bottom of tank
- 24" inside diameter with tapered lower section
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