Stainless Steel Schedule Half Coupling Supplier in Saudi Arabia

Schedule Half Coupling

Our Schedule Half Couplings are essential industrial components designed to create secure branch connections, vessel nozzles, or instrument ports. Available in Buttweld (Sch 10/40) for high-pressure structural joints and Threaded (NPT/BSP) for mechanical attachments, these fittings are manufactured from premium SS 304 and SS 316L. Engineered to ASME B16.11 standards, they provide a reliable, leak-proof solution for mission-critical B2B piping and pressure vessel infrastructure.

SKU SC-FIT-030 Category

Product Overview

The Schedule Half Coupling serves as a specialized “boss” or outlet fitting, designed to be welded onto the outer wall of a pipe or a pressure vessel. Unlike full couplings that join two pipes in a straight line, the half coupling provides a singular port—making it indispensable for adding secondary lines, drainage points, or monitoring equipment to a primary system.

Precision Dual-Configuration Design

[Image showing a half coupling welded to a main header as a branch outlet] Depending on the specific industrial requirement, we provide these fittings in two primary styles:

  1. Buttweld Half Couplings: Features a beveled end designed for deep-penetration welding. These are engineered to match the wall thickness of Schedule 10 and Schedule 40 pipes, ensuring that the branch point maintains the same pressure rating as the main line.

  2. Threaded Half Couplings: Features precision-machined internal NPT or BSP threads. These allow for the direct, screw-in mounting of gauges, valves, or thermal sensors onto a welded base, providing a modular and accessible port.

Structural Integrity & Material Excellence

Constructed from forged or heavy-walled AISI 304 or 316L Stainless Steel, our half couplings are built to withstand high mechanical stress and thermal cycling. The low-carbon 316L variant is specifically recommended for corrosive chemical environments and high-purity water systems to ensure long-term resistance to oxidation and pitting at the weld zone.

Technical Specifications

Feature Buttweld Half Coupling Threaded Half Coupling
Material Grade ASTM A403 WP304, WP316L ASTM A182 F304, F316L
Connection Type Beveled Weld End (Buttweld) Internal NPT / BSP Threads
Design Standard ASME B16.9 / ANSI B16.25 ASME B16.11 / MSS SP-83
Wall Schedule / Class Schedule 10 (S10), Schedule 40 (S40) 3000# / 6000# (Pressure Class)
Size Range 1/2″ to 12″ (NPS) 1/8″ to 4″ (NPS)
Manufacturing Seamless / Forged & Machined Forged & CNC Machined

Applications

Petrochemical Vessel Nozzles: Creating high-strength inlet and outlet ports on stainless steel reactors, storage tanks, and pressure vessels.

Industrial Instrument Ports: Providing a secure, threaded base for the installation of pressure gauges, thermometers, and flow sensors in Schedule 40 pipelines.

Drain & Vent Manifolds: Essential for installing drain valves at low points or air vent valves at high points in industrial fluid networks to facilitate maintenance.

Chemical Process Branching: Enabling the connection of smaller-diameter secondary lines to primary headers in SS 316L corrosive fluid systems.

Modular Skid Fabrication: Used extensively in the construction of modular process skids where space-efficient, weld-on outlets are required for interconnecting piping.

Sampling Systems: Providing dedicated, leak-proof sampling points in water treatment and pharmaceutical utility lines for regular fluid quality analysis.