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Forged olet Fitting

Letrolet

GS MetalFit features Letrolet branch connection fittings in a range of stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys, copper-nickel alloys and other special materials. Letrolets are branch outlet fittings used to create a branch connection on a run pipe. Material grades, dimensions, end connections and applicable specifications can be reviewed according to project requirements.

Product Type:

Letrolet Branch Connection Fittings

Size :

1/8" NB to 4" NB listed for socket-weld and threaded connections in the supplied specifications

Outlet Size:

1/8" to 8"

Pressure Class:

1500#, 3000#, 6000# and 9000#

About This Product

Threadolet

Letrolet fittings are branch connection components used to provide a branch outlet from a main or run pipe. They are included in the wider family of olet fittings, which also includes Weldolet, Sockolet, Threadolet, Elbolet, Nipolet and other branch connection designs.

GS MetalFit’s Letrolet product catalogue covers a broad selection of material grades, including stainless steel, carbon steel, alloy steel, duplex and super duplex stainless steel, nickel alloys, Monel, Hastelloy, Inconel, copper-nickel alloys, aluminium bronze, nickel aluminium bronze, brass and titanium.

Depending on the applicable product design and project specification, outlet configurations may include threaded, socket-weld and butt-weld connections. The supplied source also lists lateral, sweep, elbow, coupling, flex and braze outlet forms within its wider olet product range.

Dimensions, schedules, pressure classes, material grades and documentation requirements should be confirmed against the required fitting design and applicable standard before ordering.

Technical Specifications

Product Name
Letrolet
Product Category
Branch Connection Fittings / Olet Fittings
Nominal Size
1/8" NB to 4" NB listed for socket-weld and threaded fittings
Outlet Size
1/8" to 8"
Run Pipe Size
1/8" to 60"
Pressure Classes
1500#, 3000#, 6000# and 9000#
Shapes
Equal-shape Letrolet, as listed in the source
Schedules
Sch. 10S, Sch. 40S, Sch. 80, Sch. STD, Sch. XS, Sch. 160 and Sch. XXS; other requirements subject to confirmation
End Connections
Threaded, including NPT where applicable; socket weld and butt weld options are also listed
Manufacturing Standards Listed
ASTM / ASME SB366, SB363, SB61, SB62, SB151, SB152, SB564, SB160, SB472, A815, A182, A105, A350 and A694
Product / Design Standards Listed
ASME / ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316 and BS 3799
Material Test Certificate
EN 10204 Type 3.1 or Type 3.2, subject to order requirements and availability
Material Compliance Reference
ASTM material standards and ISO 15156, where applicable to the specified material and service
Packing
Nylon bags, plastic packaging and wooden boxes; fumigation certificates where applicable
Special Dimensions
Customer-specified dimensions, subject to technical review

Manufacturing Processes

  • Free Forging
  • Plate Cutting
  • Forging
  • Threading
  • Heat Treatment

Material Testing, Documentation and Quality Records

  • Raw Material Test Certificate
  • Material IGC (Intergranular Corrosion) Test
  • Material Dimension Chart
  • Material Heat Treatment Chart
  • PMI Report (Positive Material Identification)
  • Material Chemical Analysis Report
  • NBL Government-Approved Laboratory Test Reports
  • Quality Assurance Plan (QAP)
  • Material Hardness Testing Report
  • Material Mechanical Properties Report
  • Material Chemical Report
  • Material Pressure Capacity Certificate
  • 100% Radiography Test Report
  • Flattening Test / Flaring Test Reports
  • Third-Party Inspection Report

Related Product Forms

Weldolet, Sockolet, Threadolet, Letrolet, Insert Weldolet, Elbolet, Nipolet, Sweepolet, Brazolet, Coupolet, Nippo Flange, Flangeolet and Flexolet. Flexolet forms listed include threaded, socket-weld and butt-weld options. These are related product forms and are not necessarily interchangeable with a Letrolet.

Other Outlet Types Listed

  • Welding Outlet
  • Socket Outlet
  • Threaded Outlet
  • Lateral Outlet
  • Sweep Outlet
  • Nippo Outlet
  • Elbow Outlet
  • Coupling Outlet
  • Flex Outlet
  • Braze Outlet

Packing Options

Nylon bags, plastic packing and wooden boxes with fumigation certificates where applicable. Final packing arrangements are subject to product requirements and order confirmation.

Compliance Reference

The supplied source references NACE MR0175 / ISO 15156. Applicability, material suitability and the required compliance documentation should be confirmed for the specified material, service conditions and order.

Materials & Grades

Stainless Steel Letrolet

ASTM A182 F304
ASTM A182 F304L
ASTM A182 F304H
ASTM A182 F316
ASTM A182 F316L
ASTM A182 F316Ti
ASTM A182 F347
ASTM A182 F347H
ASTM A182 F309
ASTM A182 F310S
ASTM A182 F317
ASTM A182 F317L
ASTM A182 F904L
ASTM A182 F321
ASTM A182 F321H
ASTM A182 F446
ASTM A182 F440

Alloy Steel Letrolet

ASTM A182 F5
ASTM A182 F9
ASTM A182 F11
ASTM A182 F12
ASTM A182 F22
ASTM A182 F91

Carbon Steel Letrolet

ASTM A105 / SA105N
ASTM A350 LF2

Duplex & Super Duplex Steel Letrolet

Duplex Steel:
ASTM A182 F51 / UNS S31803
ASTM A815 F60 / UNS S32205

Super Duplex Steel:
ASTM A182 F61 / UNS S32550
ASTM A815 F55 / UNS S32507
ASTM A815 F53 / UNS S32750
ASTM A815 / ASTM A182 Zeron 100
ASTM A815 UNS S31254 / SMO 254

Additional Grades:
F51 and F55 grades as listed in the source

Nickel Alloys

Nickel 200 — ASTM SB564, UNS N02200
Nickel 201 — ASTM SB564, UNS N02201

Hastelloy Alloys

Hastelloy B2 — ASTM SB564, UNS N10665
Hastelloy B3 — ASTM SB564, UNS N10675
Hastelloy C276 — ASTM SB564, UNS N10276
Hastelloy C22 — ASTM SB564, UNS N06022
Hastelloy C2000 — ASTM SB564, UNS N06200
Hastelloy X — ASTM SB564, UNS N06002

Monel Alloys

Monel 400 — ASTM SB564, UNS N04400
Monel K500 — ASTM SB564, UNS N05500

Inconel Alloys

Inconel 600 — ASTM SB564, UNS N06600
Inconel 601 — ASTM SB366, UNS N06601
Inconel 625 — ASTM SB564, UNS N06625
Inconel 718 — ASTM SB366, UNS N07718
Inconel 725 — ASTM SB564, UNS N07725
Inconel 825 — ASTM SB366, UNS N08825

Cupro Nickel & Copper Alloys

Cupro Nickel 90/10 — ASTM SB61, UNS C70600
Cupro Nickel 70/30 — ASTM SB61, UNS C71500
CuNi10Fe1Mn — ASTM SB62
CuNi30Mn1Fe — ASTM SB62
Cupro Nickel C71640 — SB151
Aluminium Bronze C61400 — ASTM B171
Nickel Aluminium Bronze C63000 — ASTM B150
C46400 Brass — ASTM B21

Other Special Grades

Alloy 20 — UNS N08020
SMO 254
Titanium Grade 2
Titanium Grade 5, where specified
Carbon Steel A105
Alloy Steel
Inconel 800
Hastelloy C22 and B2
Duplex and Super Duplex grades F51 and F55

Applications

01

Branch Pipe Connections

02

Main Pipe to Branch Pipe Connections

03

Industrial Piping Systems

04

Pipeline Branch Outlets

05

Process Piping Connections

06

Welded Branch Connections

Why Choose GS MetalFit?

Multiple Material Options

The catalogue covers stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys, copper-nickel alloys and other special materials listed in the source.

Different Outlet Configurations

Threaded, socket-weld and butt-weld connections are included in the supplied range description, subject to product suitability.

Size and Schedule Options

The source lists multiple outlet and run pipe sizes, along with schedules from Sch. 10S through Sch. XXS and other customer requirements.

Pressure Class Options

Classes 1500#, 3000#, 6000# and 9000# are listed, subject to the applicable fitting design and standard.

Technical Documentation

Material certificates, inspection reports and testing documents can be specified in the enquiry and confirmed for the order.

Project-Based Requirements

Material grades, dimensions, end connections and documentation can be reviewed against the customer's technical specification.

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