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MERIT WELD-MISER TEE-LETUNIFIED DESIGN WELDING BRANCH OUTLET FITTINGS

MERIT MANUFACTURING CORPORATION319 Circle of Progress ~ Pottstown, Pennsylvania 19464-3811


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MERIT WELD-MISERTMTEE-LETFor Fire Protection & Other Low Pressure Piping SystemsMerit Weld-MiserTM Tee-LetWelding Branch Outlet Fittings offer the user a

high strength, low cost forged threaded and grooved line of fittings specifically

designed and manufactured for use with schedules 5 thru 10, proprietary thin wall,and standard wall pipe.

Unified DesignTMSeriesMerit's Unified DesignTM Series carries all important design considerations into th

entire line of welding branch outlet fittings.

Consider the following: Each outlet size 1-1/2"" and larger, whether female threaded, male threaded, weld beveled, or grooved requires the

same hole size to be cut in the header pipe, thereby simplifying the installation process.

A nearly uniform wall thickness is employed for a given outlet size regardless of the end connection: i.e. femalethreaded, male threaded, or grooved. This allows heat settings for weld attachment to be optimally set to provide for

full penetration welds with virtually no pipe distortion on schedule 5, 10 or standard weight pipe. Tee-Let welding outlet fittings are manufactured from highly weldable steel which conforms to the chemical andphysical requirements of ASTM A-53, Grades A or B, Type E. Ease of installation is assured when automatic

welding equipment is used to install Merit Tee-Lets.

Threads are cut in accordance with the requirements of ANSI B1.20.1, 300 lb. class, national standard for taperedpipe threads. DIN 2999 threads are available for the world market.

The Weld-MiserTM Tee-Letbevel configuration, and reduced wall thickness require one weld-pass for installatioAside from meeting all applicable code requirements, installation time is significantly reduced.

Tee-Let threaded and grooved welding outlet fittings are UL/ULC Listed, and FM Approved for use in the firesprinkler systems installed in accordance with the requirements of NFPA Bulletin 13. They are rated for 300 PSI

operation in fire sprinkler systems, and higher pressures in other non-critical piping systems.

Tee-Lets are offered in a wide variety of header sizes. The consolidated header sizes shown in the following chartsallow the fittings to be installed on more than one header size, while permitting the first size listed to fit the headerperfectly, while a small gap along the longitudinal centerline of the header will appear for the second size listed. For

those installers using fixtured automatic welders, Merit produces a size for each header, thereby insuring perfect

alignment.

For Your Piping systems Specify Weld-MiserTMTee-LetBranch Outlet Fittings shall be Merit Weld-MiserTM Tee-Let, lightweight forged steel, employing low weld volume

profile to provide for full penetration welds with minimum burn-through and pipe distortion on schedules 5 thru 10,

proprietary thin wall, and standard wall pipe. Threads are to be ANSI B1.20.1, tapered 300 lb. Class or DIN 2999, and thebore of the fittings calculated to improve flow. Welding outlets to be UL Listed, FM Approved for use conforming to NFPA

Bulletin 13 and pressure rated for 300 PSI maximum. Tee-Letsby Merit Manufacturing Corporation, Pottstown,Pennsylvania 19464 U.S.A.


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Type A - Female ThreadsORDERING DATA

Method No. 1

Specify quantity desired followed by the part number shown in the

"dimemsions" chart for the type and size of outlet desired.

______________ xxxxxx xx________________ xxxxxxxx

XQUANTITY xxxXXxxxxx PART NUMBERx xxX Xx

Method No. 2 - Use the following system:Quantity Outlet Size Header Size Weight Type End

________ _ ___________ X ____________ ___________ ___________

Always order a

few more thanactually

required for thejob

Column "A" of

chart

Insert size

consolidation fromColumn "B" of

chart

300 lbs.

Sch. 40

Sch. 10

A - Female

B- Male

C- Cut Groove

C/R -Roll Groove

TYPE A - FEMALE THREADSDimensions & Corresponding Part Numbers

NominalOutlet

SizeA

NominalHeader Size

B

PartNumber

Outlet LengthInches

C

Inside DiameterInches

D

Make UpInches

M

1/2 x

1-1/4 - 1- 1/2

1-1/2 - 22 - 2-1/2

2-1/2 - 8

1005012

1005015*1005020

1005025

1.0625 0.700 0.500

3/4 x

1 - 1-1/41-1/4 - 1-1/2

1-1/2 - 22 - 2-1/2

2-1/2 - 8

1007010*1007012

1007015*1007020

1007025

1.125 0.900 0.500

1 x

1-1/4 - 1-1/21-1/2 - 2

2 - 2-1/22-1/2 - 3

2 - 45 - 8

10100121010015*

10100201010025*

10100301010050

1.250 1.145 0.500


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1 1/4 x

1-1/4

1-1/2 - 22 - 2-1/2

2-1/2 - 33 - 4

5 - 8

1012012

10120151012020

1012025*1012030

1012050

1.375 1.490 0.500

1 1/2 x

1-1/22

2-1/23 - 4

45 - 8

10150151015020

10150251015030

1015040*1015050

1.625 1.610 0.875

2 x

2

2-1/23

45

68

1020020

10200251020030

10200401020050

10200601020080

1.750 2.067 0.875

2 1/2 x

2-1/2

34

5

68

1025025

10250301025040

1025050

10250601025080

2.125 2.469 1.125

3 x

34

56

8

10300301030040

10300501030060

1030080

2.500 3.068 1.500

4 x45

68

10400401040050

10400601040080

3.000 4.026 2.000

Note:*Special Order

TEE-LETS fit exactly on the first header size listed for a given consolidation while leaving a slight gap along the longitudinalcenterline of the header on the second size listed.

TYPE B Male Thread Std. Wt.TYPE C Cut Groove Std. Wt.TYPE C/R Roll Groove Sch. 10Ordering Data

Method No. 1

Specify quantity desired followed by the partnumber shown in the "dimemsions" chart for the

type and size of outlet desired.

______________ ________________

Quantity Part Number

Method No. 2 - Use the following system:

______ - ______ x _____ _____ ____ Merit SteelQuantity Outlet Header Weight Type Tee-Let Material Size Size End

Always Column Insert size Sch. 10order a few "A" consolidation Standardmore than of chart from Columnactually "B" of chart.required for Type Endthe job. B - Male Thread C - Cut Groove C/R - Roll Groove


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Dimensions & Corresponding Part Numbers

NominalOutlet

SizeA

NominalHeader Size

B

Part #


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