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Duct Technical InformationDuct Technical InformationTECHNICAL INFORMATION & DIMENSIONSContact Spears for any Information not found.Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 236

Duct Technical InformationFume & Air Duct OverviewIndustrial Grade for General Purpose & Corrosive Vapor FumesSpears Industrial Grade Fabricated PVC & CPVC Duct provides a light weight and low maintenance alternativeto conventional metal ducting with superior chemical & corrosion resistance. Produced in a wide variety of sizesand configurations from 6" through 24" with custom fabrication available to virtually any size and shape.Thermoplastic Duct & Fittings ConstructionSpears Fabricated duct and fittings are manufactured in accordance with applicable guidelines and requirementsto assure sound, reliable construction, performance and compatibility that meet customer design specifications.Included with our high quality standard duct line, Spears offers duct product designed to the Sheet Metal andAir Conditioning Contractors’ National Association (SMACNA) requirements.Chemical & Corrosion ResistantPVC & CPVC ConstructionUnlike metal, PVC & CPVC Duct never rusts, scales or pits remaining virtually maintenance free for years.Fabricated from Premium QualitySeamless Extruded Round DuctSpears Fabricated Duct Fittings are produced from premium quality PVC & CPVC materials conforming toASTM D1784.Custom Fabricated Duct Fittings, Accessories & Complete Exhaust SystemsSpears offers custom fabrication for a wide variety of specialty needs including: Square Duct Rectangular Duct Fume Hoods Fume Exhaust SystemsPage 237Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationIndustrial Grade for General Purpose& Corrosive Vapor FumesSpears Industrial Grade Fabricated PVC & CPVC Duct provides a light weight and low maintenance alternative to conventionalmetal ducting with superior chemical & corrosion resistance. Produced in a wide variety of sizes and configurations from 6" through24" Seamless Extruded Round Duct and Cold Rolled Fabricated Duct in larger sizes with custom fabrication available to virtuallyany size and shape.Thermoplastic Duct & Fittings ConstructionSpears Fabricated duct and fittings are manufactured in accordance with applicable guidelines and requirements to assuresound, reliable construction, performance and compatibility that meet customer design specifications. Included with our highquality standard duct line, Spears offers duct product designed to the Sheet Metal and Air Conditioning Contractors’ NationalAssociation (SMACNA) requirements.Chemical & Corrosion ResistantPVC & CPVC ConstructionUnlike metal, PVC & CPVC Duct never rusts, scales or pits remaining virtually maintenance free for years. Spears Fabricated Duct& Duct Fittings are produced from premium quality PVC & CPVC materials conforming to ASTM D1784.Custom Fabricated Duct Fittings, Accessories & Complete Exhaust SystemsSpears offers custom fabrication for a wide variety of specialty needs including: Square Duct Rectangular Duct Fume Hoods Fume Exhaust SystemsGeneral Specifications for Round PVC & CPVC Duct FittingsMaterialsAll fabricated duct fittings, sizes 6" to 24", shall be constructed from ASTM D1784 PVC or CPVC seamless Extruded Duct. Sizesabove 24" shall be custom produced from Cold Rolled PVC Type I & Type II, Grade I extruded sheet with thermal fused seam.Elbow ConfigurationsElbow angles are manufactured through the use of thermoforming and hot gas welding. Standard 45 elbows are offered 1-pieceformed, with 2-piece or 3-piece welded. The 45 3-piece meets SMACNA requirements. Standard 90 elbows are offered in2-piece formed, with 3-piece or 5-piece welded. The 90 5-piece meets SMACNA requirements. Additional elbow configurationsmeeting SMACNA requirements are available upon request.Flange ConfigurationsFlanges are fabricated to SMACNA bolt pattern specifications and can be provided in ANSI Class 150 bolt patterns.Maximum Service TemperaturesPVC 140 F; CPVC 200 FJoining MethodsSolvent cement, hot-gas welding, or flanged connections.Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 238

Duct Technical InformationTechnical InformationCold Rolled Fabricated Round DuctRound duct nominal size 26" to 48" is cold rolled from extruded PVC or CPVC sheet material. The seam is thermal fusedutilizing a computerized welding machine. The sheet edges are heated and pressed together pneumatically, achieving 100%weld strength using no filler rod. Wall thickness is 3/16" for sizes up to 32" diameter. Above 32" diameter, 1/4" material willbe used, unless otherwise specified. Cold rolled duct is produced in 4 foot lengths. Large duct fittings can be fabricated toorder. Contact Spears with requirements for additional information.SMACNA Flange Bolt Pattern 16"5/16"5/16"5/16"No. OfBolts81012161618202224DimensionsRound Duct socket dimensions shall meet the requirements of the Sheet Metal and Air Conditioning Contractors’ NationalAssociation Thermoplastic Duct Construction Manual. Fittings shall be constructed from seamless duct meeting the followingdimensional specifications. All dimensions are in verageO.D. TOL. .020 .020 .025 .025 .030 .030 .040 .070 .090Out ofRound1 .050 .075 .075 .075 .075 .075 .080 .140 x.Wall.202.202.202.202.202.202.202.239.270WT (lbs.)Per Ft.2.5553.3494.1924.9865.4856.2737.5809.14612.5361 : Out-of-Round as produced at factory.Negative Pressure RatingsPositive Pressure RatingsPVC MAX. Internal Negative Pressure RatingPVC MAX. Internal Positive Pressure RatingInches of Water @ Various Temperatures FPSI @ Various Temperatures FTEMPERATURE FSize RE 106454Size 0101302216131110988814015129876565PSI Inches of Water x .0361; Inches of Mercury Inches of Water x .07355Page 239Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationCPVC MAX. Internal Negative Pressure RatingCPVC MAX. Internal Positive Pressure RatingInches of Water @ Various Temperature FPSI @ Various Temperatures FTEMPERATURE FTEMPERATURE FSize 703520151010106Size 018016131088656520013108665555PSI Inches of Water x .0361; Inches of Mercury Inches of Water x .07355Hanger & Support SpacingSupport spacing is based on duct diameter, system temperature, location of stress loads, and loads from solids accumulation inthe system. Heavy system components and loads must be independently supported. Secure hangers and supports to buildingstructure to prevent vibration and properly aligned to prevent stress on the system. Use hangers with an adequate load-bearingsurface free of rough or sharp edges and of a type that will not restrict linear movement of the system due to expansion andcontraction. Avoid over VC Maximum Hanger Support Spacing (ft.)Temperature "16"18"20"24"CPVC Maximum Hanger Support Spacing (ft.)Temperature 2121218088101010101212122008810101010121212Thermal Expansion & ContractionThermal expansion and contraction of the system must be properly addressed during system design and installation. In-line expansionjoints or use of the system’s inherent line Àexibility can be used to construct expansion loops and offsets as required. The expansion orcontraction rate of Spears PVC or CPVC Duct can be calculated using the coef¿cient of linear expansion (y) in the following formula:ǻ L 12 yL (ǻT)where: ǻL expansion or contraction of duct in inchesy for PVC 2.9 x 10-5 in/in/ F-ORy for CPVC 3.2 x 10-5 in/in/ FL Length of duct run in feetǻT Temperature change F (T max. - T min.)T max. maximum change in operating temperature ( F)T min. temperature at time of installation ( F)Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 240

Duct Technical InformationTechnical InformationTEEBelled SocketG1H1MHPART 11/1610-1/211-3/162111-1/84301-1204301-120C129 -1/41934-1/224-1/2PVCCPVC4301-0604301-080REDUCING TEEM1Belled SocketG1H1MHPART ge 241Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationREDUCING TEEBelled SocketM1 CONTINUEDG1H1MHPART 1/167 20-7/16PVCCPVC4301-7024301-754Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 242

Duct Technical InformationTechnical Information90 ELBOW 2-PIECEBelled SocketHGMPART /424-1/290 ELBOW SMACNA 5-PIECEBelled SocketHGRMPART 65-10043065-120Page 243SIZESuitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasRSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical Information90 ELBOW 3-PIECEBelled SocketGHMPART 6043063-360C3626393690 ELBOW SMACNA 3-PIECEBelled SocketH GRMPART /2142143063S-16043063S-160C162426-1/21624Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 244

Duct Technical InformationTechnical Information45 ELBOW 1-PIECEBelled SocketHJMPART 04317-240C248-3/85-7/824-1/245 ELBOW SMACNA 3-PIECEBelled SocketHJRMPART 24043173-240C2414-7/812-3/8Page 245Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationBLAST GATEBelled EndL1ML2L3LPART 3BG-24043BG-240C246BUTTERFLY DAMPERBelled SocketNLMPART 1743BD-24043BD-240C242624-1/221PVCCPVC43BD-060Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 246

Duct Technical InformationTechnical InformationCROSSBelled SocketG1H1ML1HPART 4320-100C1088-11/1610-1/211-3/162122-3/811 3-1/824-3/813 -1/226-5/814 6-1/228-5/816 8-1/230-5/818 /41934-1/23824-1/2PVCCPVC4320-0604320-080REDUCING CROSSM1Belled SocketG1L1MGHPART 24320-582Page 247Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationREDUCING CROSSM1 CONTINUEDBelled SocketG1L1MGHPART /415-3/415-1/418-1/430-1/236-1/224-1/220-7/16Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 248

Duct Technical InformationTechnical InformationCOUPLINGBelled SocketMNLPART 247-1/224-1/22-1/2REDUCER COUPLINGBelled SocketMM1NLPART -585Page 249SIZESuitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasNSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationREDUCER COUPLINGBelled Socket CONTINUEDMM1NLPART PVCCPVC4329-6944329-696Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 250

Duct Technical InformationTechnical InformationSLEEVE COUPLINGSocket (No Stop)LMPART PVCCPVC4329S-060FLAT CAPBell SocketMWPART 347-240C243 1/424-1/2Page 251Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationRAIN CAPM1Belled Socket Style ANLMPART 822-9/16PVCCPVC4347-060A4347-080ARAIN CAPM1Belled Socket Style BL1LL2NMPART 47-200B4347-200BC2090-1/280620-7/16242Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 252

Duct Technical InformationTechnical InformationDUCT FLANGE SMACNA BOLT PATTERNBelled Socket One PieceMRLBOLT CIRCLE DIAMETERMAX O.D.PART . 41/426-1/2245/1628BLIND DUCT FLANGE CLASS 150 BOLT PATTERNOne PieceRBOLT CIRCLE DIAMETERMAX O.D.PART NUMBERBOLT CIRCLEDIA.NO. OF 9-1/2201-/832CPVC4353-0604353-080Page 253HOLE SIZEMAXO.D.SizePVCSuitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears Manufacturing CompanyDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.com

Duct Technical InformationTechnical InformationBLIND DUCT FLANGE SMACNA BOLT PATTERNOne PieceRBOLT CIRCLE DIAMETERMAX O.D.PART NUMBERBOLT CIRCLEDIA.NO. OF 1614PVCCPVC4353S-0604353S-0804353S-100HOLE 2404353S-240C241/426-1/2245/1628WYEBelled SocketH1G1MGHPART C4375-060Made in the U.S.A.Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasDue to Material Cost Variations, Prices Subject to Change. Check On-line Catalog @ www.spearsmfg.comPage 254

Duct Technical InformationTechnical InformationREDUCING WYEBelled SocketM1H1G1MHPART 624C10x4

24" Seamless Extruded Round Duct and Cold Rolled Fabricated Duct in larger sizes with custom fabrication available to virtually any size and shape. General Specifi cations for Round PVC & CPVC Duct Fittings Materials All fabricated duct fittings, sizes 6" to 24", shall be constructed from ASTM D1784 PVC or CPVC seamless Extruded Duct. Sizes