Parker PTR34M | BSPT Reducing Adapters

    This Section contains adapters with thread types including NPT, NPTF, BSPT, BSPP, SAE UN/UNF, and Metric. All the threads in this section are made to industry specifications with conformance shown in table on the right.
    Thread Standard

    NPT

    ANSI B1.20.1, FED-STD-H28/7

    NPTF

    SAE J476, ANSI B1.20.3, FED-STD-H28/8

    BSPT

    BS 21, ISO 7/1

    BSPP

    BS 2779, ISO 228/1

    Metric

    ISO 261, ANSI B1.13M, FED-STD-H28/21

    UN/UNF*

    ANSI B1.1, FED-STD-H28/2
    *Class 2A or 2B

    Parker Pipe Reducer, Expander, & Conversion Configurations

     Parker BSPT Reducing Adapter

     

    BSPT Reducing Adapters

    Part #: PTR34M
    Manufacturer: Parker

     

    BSPT / BSPP

    TUBE
    FITTING

    PART #

    END SIZE

    C2

    (mm)

    L2

    (mm)

    Dynamic
    Pressure
    (x 1,000 PSI)

    1

    BSPT

    2

    BSPP

    S

    SS

    B

    1/4X1/8PTR34M

    1/4-19

    1/8-28

    17

    28

    6.0

    6.0

    3.3

    3/8X1/4PTR34M

    3/8-19

    1/4-19

    19

    33

    6.0

    6.0

    3.3

    1/2X1/4PTR34M

    1/2-14

    1/4-19

    22

    39

    5.0

    5.0

    3.3

    1/2X3/8PTR34M

    1/2-14

    3/8-19

    22

    39

    5.0

    5.0

    3.3

     

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    Parker pipe fitting shaped products (elbows, tees and crosses) are hot forged and machined. Parker straight pipe fittings are manufactured from cold drawn barstock. Where applicable, the fittings are made in conformance with SAE J514, J530. All Parker steel pipe fittings are zinc plated with silver chromate (zinc chromium 6 free). Stainless steel pipe fittings are passivated.