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PBT
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  • Instruments | Pipe Fittings | Female Pipe to Male Pipe
  • Dimensions
  • How To Order
  • Pipe End Thread Information
  • Features

Dimensions

 

Female NPT to Male NPT
Part No.P
NPT
Dimensions (mm)
LSEF
inchmm
PBT-02N1/822.3214.81/215.87
PBT-04N1/428.728.77.111/1617.46
PBT-06N3/836.1329.613/1620.63
PBT-08N1/239.639.111.9125.40

How To Order

UNILOK pipe fittings are ordered by part number as shown below. 

Example: The following part number, PHRN-08N04N-SS is designated for Reducing Hex Nipple, 1/2 Male-NPT x 1/4 Male NPT, 316SS. 


PBT-08N04N--SS
UNILOK
Pipe Fittings
Fitting TypePipe
Thread
Size
Thread
Type
Pipe
Thread
Size
Thread
Type
Pressure
Rating
MaterialNACE
NACE ApplicationMaterial Designation
Pipe Size1/81/43/81/23/41DesignatorMaterial
Designator020406081216SS316SS
BSBrass
Thread Type DesignationMO40Alloy400
DesignatorThread Type
NNPTNational Standard  Pipe ThreadPressure Rating Designation
RISO 7/1Taper Pipe ThreadDesignatorPressure Rating
GISO 228/1Parallel Pipe Thread6K6000 psi
WS-*T Socket Weld-Tube10K10000 psi


Pipe fittings for high pressure application are available. The standard pressure ratings for each thread sizes are based on ASME B31.3 at ambient temperature. For the availability of 6000psig and 10000psig, contact your local distributors.

Pipe End Thread Information

The end connections with the lower pressure rating is the determining factor of pressure rating for the fittings with both UNILOK tube ends and pipe thread ends .   


Pressure Rating for Pipe End Thread 


Tapered Pipe Threads - NPT or ISO 7/1(BSPT)
Allowable pressure ratings for male and female threads are based on ASME B31.3 at ambient temperature.
ISO 228/1 Parallel Thread (BSPP)
The pressure ratings are at ambient temperature.
Pipe Size316SS316SSUNILOK
Desig nator
Male
Pipe Size
316SSUNILOK
Designator
MaleFemaleMaleFemalebarpsig
inchbarpsigbarpsigpsigbarpsig1/83154568-02G
1/1676011000460670055002303300-01N/R1/43154568-04G
1/869010000440650050002203200-02N/R3/83154568-06G
1/45508000450660040002203300-04N/R1/21602320-08G
3/85407800360530039001802600-06N/R
1/25307700330490038001602400-08N/R
3/45007300320460036001602300-12N/R
13705300300440026001502200-16N/R
1-1/44106000350500030001702500-20N/R
1-1/23405000310460025001502300-24N/R
22703900270390019001301900-32N/R


O-Seal Fittings 

Rated to 206 bar (3000 psig) for 316SS fittings up to 1 inch and 25mm 


Kinds of Pipe End Thread

NPT Pipe Thread
NPT (National Pipe Thread) is based on ANSI B1.20.1.

ISO 7/1 Tapered Pipe Thread
International Organization for Standard (ISO 7/1) Tapered (PT) Equivalent to BSPT (British Standard Pipe Taper Thread), DIN 2999, JIS B0203

    

ISO 228/1 Parallel Pipe Thread
International Organization for Standard (ISO 228/1) Parallel(PF) Equivalent to BSPP (British Standard Pipe Parallel Thread), DIN ISO228/1, JIS B0202 Gasket or O-ring is normally used to seal into the parallel female threaded components.

Features

Excellent finish level to allow smooth flow transition. 

Every piece of elbow has a radius junction to eliminate entrapment areas and allow smooth flow transition for all elbows, including pipe fittings.

Fine threads meet the requirements of ASME/ANSI B1.20.1 to ensure maximum thread engagement.

Working pressures are higher than traditional piping classes, 3000 pipe fittings to ASME B16.11.

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