SOCKET O.D.MACHINED(SPU)

Product Overview

The Socket O.D. Machined (SPU) is a precision-engineered full-female threaded straight coupling, designed to create a seamless, leak-proof connection between two male-threaded pipes of the same diameter in fluid piping systems.

Featuring a smooth, precision-machined outer diameter (O.D.) and uniform internal threads, this socket delivers exceptional dimensional accuracy, structural integrity, and reliable sealing performance, making it an essential component for industrial, commercial, and residential piping networks.

Manufactured via advanced lost wax casting with precision machining, it ensures consistent quality and long-term, dependable operation across diverse fluid transfer applications.

Key Features

Precision Machined Outer Diameter
The smooth, uniform O.D. is precision-machined to tight tolerances, ensuring a flush, professional finish and compatibility with standard piping systems, ideal for applications requiring a clean, unobtrusive appearance.

Dual Female Threaded Design
Features full internal threads on both ends, enabling direct, one-piece connection between two male-threaded pipes, eliminating the need for extra adapters and reducing potential leak points.

Premium Material Selection
Available in stainless steel, carbon steel, alloy steel, tool steel, and custom alloys, designed to withstand high pressure, high temperature, and corrosive working environments.

Advanced Lost Wax Casting + Machining Process
Combines precision lost wax casting with secondary machining, ensuring smooth internal threads, tight dimensional consistency, and uniform mechanical properties, minimizing flow resistance and ensuring reliable sealing.

Global Standard Compliance
Compliant with ASTM, JIS, DIN, BS NF, and K-version standards, with a complete size range from 1/8" to 4", covering all common pipeline specifications for global projects.

Customizable Surface Treatment
Surface finishing can be fully customized, including passivation, polishing, coating, and more, enhancing corrosion resistance, aesthetics, and service life.

Technical Specifications

• Product Type: Socket O.D. Machined (SPU)

• Size Range: 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2", 3", 4"

• Connection Type: Female × Female (F/F) Internal Threaded

• Manufacturing Process: Lost wax casting + precision O.D. machining

• Applicable Standards: ASTM, JIS, DIN, BS NF, K-version

• Weight Range: 5g – 50kg (varies by size and material)

• Maximum Size Limit: 500 × 500 × 500 mm

• Monthly Production Capacity: 100 Metric Tons

Supply & Trade Terms

• Minimum Order Quantity (MOQ): 50 pieces

• Quotation Terms: EXW, FOB, CFR, CIF

• Payment Terms: T/T, L/C

• Place of Origin: Hebei, China

• Loading Port: Tianjin Port or other designated Chinese ports

• Lead Time: 30–60 days after order confirmation

Packaging & Inspection

• Packaging: Standard export packaging including cartons, plywood pallets, and custom solutions

• Inspection: Rigorous in-house self-inspection; third-party inspection available upon request

• Supporting Documents:

• Material chemical composition report

• Dimensional measurement report

• Hardness test report

• Other required quality certificates

Application Scenarios

Widely used in:

• Water supply and drainage

• HVAC systems

• Fire protection

• Petroleum and chemical industries

• Food processing and pharmaceutical industries

• General industrial piping systems

Ideal for:

• Pipeline extensions

• System repairs

• Creating secure, flush joints in applications requiring a smooth, machined exterior finish

Main Export Markets

Europe, United States, Canada, Australia, Japan, South Korea, and other global markets.

Customization Support

Full customization for:

• Special materials

• Non-standard sizes

• Custom thread configurations

• Surface treatments

Our technical team is available for detailed consultation and tailored solutions.