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Threadolet

1. What is a threadolet?

Threadolet fittings is a kind of self-reinforced branch connection pipe fitting. A threadolet is used for low-pressure 90-degree pipe branches. It has a female threaded connection, and the branched pipe is screwed on the fitting. This makes the 90-degree branch a full-size or reduced straight pipe.

A full-size threadolet offers the same diameter branch as the run pipe. For example, the diameter of a full-size threadolet is 3”x3”. While reducing threadolet is when branch size is less than run pipe size. For example, 3”x2” threadolet.

threadolet-fittings-manufacturer image

Thredolets belong to the “threaded fittings” family and are available in classes 3000# and 6000#. Threadolets are used for smaller pipe sizes and low-pressure applications.

2. Thread Types of Threadolet Fittings

NPT Threadolet
NPT stands for National Pipe Tapered threads (also for ANSI/ASME B1.20.1 Pipe Threads). It is a U.S. standard for measuring tapered threads on threaded pipes and fittings. It has 60-degree thread angle.

BSP Threadolet
BSP refers to British Standard Pipe, it is screw threads for interconnection and sealing pipes and fittings. BSPP and BSPT are two common types of BSP threads.

Thread type_Threadolet forged fittings

3. Weldolet VS Threadolet VS Sockolet

The main differences are the connection surface:

  • Weldolet ends in plain or beveled to weld on the branch pipe;
  • Sockolet ends in socket type that to insert branch pipe;
  • Threadolet is inserted branch pipe and with screw connection.
Threadolet, Sockolet and Weldolet manufacturer

Meantime they have different advantages:

  • Weldolet: Compatible with higher pressure and simple connection, cost lower. Thickness in SCH STD, SCH XS, SCH 160 to SCH XXS.
  • Sockolet: Compatible with higher pressure but the cost is higher. Pressure ratings in 3000#, 6000#.
  • Threadolet: Easy to replace and maintain, the cost is higher. Pressure ratings in 3000#, 6000#.

4. Threadolet Specification

Branch Fittings-Threadolet-olet series

size

1/8”-4”

Pressure class

3000/6000/9000LBS

Dimension Standards

ASME 16.11 Threadolets, MSS SP-97 Threadolets, BS 3799 Threadolets

Types

Weldolet, Sockolet, Threadolet, Nipolet, Latrolet, Elbolet, Sweepolet, Insert Weldolet, Coupolet, Brazolet, Flexolet Butt Weld, Flexolet Socket Weld, Flexolet Threaded, Nipoflange & Flangolet.

5. Threadolet Fittings Dimensions Charts

Galvanized-Threadolet-ASTM-A105 manufacturer image

Pressure: 3000LB, 6000LB
Size: from (1/4-36)″ to (5-36)
Standard: MSS-SP-97
Threads: NPT, NPSC, SAE, BSPT, BSPP
Material: Carbon Steel, Stainless Steel, Alloy Steel
Finish: Galvanized or Black, PE, and Pickled
Packing: Carton box and wooden box.

Threadolet demension chart

6. Threadolet Fittings Materials

  • Carbon Steel Threadolets
    ASTM A 105 Threadolets
    A694 Threadolets
    Gr. F42 Threadolets
    Gr. F52 Threadolets
    Gr. F56 Threadolets
    Gr. F60 Threadolets
    Gr. F65 Threadolets
    Gr. F70 Threadolets
  • Low Temperature Carbon Steel Threadolets
    A350 LF3 Threadolets
    A350 LF2 Threadolets
  • Alloy Steel Threadolets
    ASTM / ASME A / SA 182 F1 Threadolets
    ASTM / ASME A / SA 182 F5 Threadolets
    ASTM / ASME A / SA 182 F9 Threadolets
    ASTM / ASME A / SA 182 F11 Threadolets
    ASTM / ASME A / SA 182 F22 Threadolets
    ASTM / ASME A / SA 182 F91 Threadolets
  • Stainless Steel Threadolets
    ASTM A 182 F – 304 Threadolets
    ASTM A 182 F – 304H Threadolets
    ASTM A 182 F – 304L Threadolets
    ASTM A 182 F – 316 Threadolets
    ASTM A 182 F – 316H Threadolets
    ASTM A 182 F – 316L Threadolets
    ASTM A 182 F – 316Ti Threadolets
    ASTM A 182 F – 309 Threadolets
    ASTM A 182 F – 310 Threadolets
    ASTM A 182 F – 317L Threadolets
    ASTM A 182 F – 321 Threadolets
    ASTM A 182 F – 347 Threadolets
    ASTM A 182 F – 904L Threadolets
  • Duplex Steel Threadolets and Super Duplex Steel Threadolets
    ASTM/ ASME A/SA A 182 UNS – F44 Threadolets
    ASTM/ ASME A/SA A 182 UNS – F45 Threadolets
    ASTM/ ASME A/SA A 182 UNS – F51 Threadolets
    ASTM/ ASME A/SA A 182 UNS – F53 Threadolets
    ASTM/ ASME A/SA A 182 UNS – F55 Threadolets
    ASTM/ ASME A/SA A 182 UNS – F60 Threadolets
    ASTM/ ASME A/SA A 182 UNS – F61 Threadolets
branch fittings types manufacturer image

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