Specifications

DuraTrench Specification Writer.xlsx 50.7KB



Dura-Trench is a versatile system with many components that can be used for a multitude of applications.  This specification guide will assist you in writing the correct product specification for your application.  


Product selection and specification is done through a series of 7 specification slots in which you fill in the trench material, slope, grate, frame, grate locking device, outlet, and sealant.  If all designations in the specification are properly filled in, the designer can ensure that the correct product is specified for a particular application.  At the top of the page is an Excel file that can be downloaded where each of the slots can be filled in and a written specification will be generated.

SAMPLE SPECIFICATION: DTPF-1%-05B24DI-HDBP-GLNR-6B-SLUR

SLOT 1 - TRENCH MATERIAL 
DTPF = DURA TRENCH GLASS FIBER REINFORCED POLYMER CONCRETE SYSTEM (POLYESTER RESIN)
DTCF = DURA TRENCH CHEMICAL RESISTANT GFRPC SYSTEM (VINYL ESTER RESIN)
DTFR = DURA TRENCH FIRE RETARDANT GFRPC SYSTEM (POLY ESTER RESIN)
DTSS = DURA TRENCH STAINLESS STEEL SYSTEM
DTTF = DURA TRENCH FORMING SYSTEM (FOR A CONCRETE TRENCH)
DTCS = DURA TRENCH CARBON STEEL SYSTEM
DTSP = DURA TRENCH SLOTTED PIPE SYSTEM
DTRPF = DURA TRENCH RADIUS GFRPC SYSTEM (POLYESTER RESIN)
DTRSP = DURA TRENCH RADIUS SLOTTED PIPE SYSTEM

SLOT 2 - SLOPE 
0.5% *THIS IS THE STANDARD SLOPE IF IT IS NOT SPECIFIED OTHERWISE
1.0%  
INV - Match plan inverts

SLOT 3 - GRATE  EX:10B24DI (10” wide x 24” long slotted ductile iron grate)

The first two numbers are the width of the grate.  The next set of  letters is the grate style (ie. Slotted, bar grate, perforated, etc.)  The next two numbers are the length of the grate.  The next two letters designate the grate material.  The final letter (if applicable) designates the load class.  Note that if it is a slotted pipe or no grate is needed this will be blank.

GRATE SIZE       TRENCH SIZE
             5                                  4
             8                                 6
           10                                 8
           12                               10
          14                                12
          20                                18
          26                                24
          38                                36
          50                                48

GRATE STYLES:  A - SOLID COVER
                                      B - SLOTTED
                                      C - ADA / HEEL PROOF
                                      D - STAMPED SLOTTED GRATE
                                      E - STAMPED MESH GRATE
                                      F - ORNAMENTAL GRATE
                                      G - BAR GRATE
                                      H - MESH GRATE
                                      M - WIRE MESH GRATE
                                      W - WAVE GRATE

SLOT 4 - LOAD BEARING FRAME  EX: HDSS (HEAVY DUTY STAINLESS STEEL)
The first two letters determine loading capacity:
  • NF - NO FRAME
  • LD - LIGHT DUTY
  • MD - MEDIUM DUTY
  • HD - HEAVY DUTY
  •  EX - EXTREME DUTY

Next two letters designate material:
  • BP - BLACK POWDER PAINTED STEEL
  • GS - GALVANIZED STEEL
  • SS - STAINLESS STEEL
  • DI - DUCTILE IRON
  • CI - CAST IRON
  • AL - ALUMINUM
  • FG - FIBERGLASS
  • TP - PLASTIC

SLOT 5 - GRATE LOCKING 
  • GLNR - GRATE LOCKS NOT REQUIRED
  • GLZN - ZINC PLATED STEEL GRATE LOCKS AND TOGGLE
  • GLSS - STAINLESS STEEL GRATE LOCKS AND TOGGLE
  • GLVP - VANDAL PROOF STAINLESS STEEL GRATE LOCKS
  • GL4B - FOUR CORNER BOLT DOWN OF GRATES WITH STAINLESS STEEL BOLTS
  • GLWCB - BOLTED TO WELDED CROSS BAR

SLOT 6 - OUTLET  EX: 12S (12” SIDE OUTLET)
Pipe size is listed first.  Sizes available are 2” through 24”.  

The letter that follows designates the location:
  • S = SIDE
  • B = BOTTOM
  • E = END
  • C = CATCH BASIN
  • F = FLUME (CONNECTS TO BASIN BY OTHERS)

Typically, outlets are constructed as no hub outlets.  Custom outlet configurations are available.  For assistance specifying custom products, please contact technical support.


SLOT 7 - JOINT SEALANT  EX: SLCF (Vinyl Ester Chemical Resistant Sealant)
  • NSR - NO SEALANT REQUIRED
  • SLUR - URETHANE CAULK
  • SLPF - POLYESTER JOINT SEALANT
  • SLCF - VINYL ESTER SEALANT
  • SLWD - WELD JOINTS