Threaded Flanges

Overview

Threaded flanges connect to the pipe by a matching thread rather than a weld, which makes them useful where hot work is restricted or undesirable and on lower-pressure utility lines. FLOWTEC (UK) supplies threaded flanges configured to order scope, with the final specification confirmed at quotation stage.

At a glance

Threaded flanges connect to the pipe by a matching thread rather than a weld, suiting lower-pressure lines and locations where hot work is restricted. Specification confirmed against your project requirements.

• No-weld connection for welding-restricted or lower-pressure service
• Generally not selected for cyclic, high-temperature or high-vibration duty
• Referenced to the ASME B16.5 design basis with specified threads; raised-face facing
• Materials and documentation confirmed at quotation stage

Typical applications

• Utility and low-pressure lines
• Welding-restricted locations
• General industrial pipework

Typical use & selection context

Suited to lower-pressure utility and service lines, and to locations where welding is impractical or not permitted. They are generally not selected for cyclic, high-temperature or high-vibration duties. Selection considers design pressure, thread standard and pipe compatibility, each confirmed against the line specification. Every enquiry is reviewed by our engineering team before a recommendation is made.

Pressure class

ASME Class 150 - 1500

Size range

½″ - 4″ (DN 15 - 100)

Standards & facing context

Referenced against ASME B16.5 with NPT or other specified threads. Indicative envelope: ASME Class 150–1500, sizes ½″–4″. Raised-face is the usual facing. Standards references are a design basis only, not a statement of certification.

Standards referenced

References below indicate the standards a configuration can be worked to. They are not a statement of certification — scope is confirmed per project.

• ASME B16.5 — Dimensional reference

Materials & documentation

Carbon and stainless grades configured to order scope. Material and test documentation is confirmed against the purchase-order requirement; dimensional data is available on request.

Documentation

Information to include in an enquiry

• Standard and class
• Nominal size
• Thread type
• Material grade
• Quantity
• Documentation required
• Application and operating conditions