UNION BW/BW(CU BW)

Product Overview

The Stainless Steel Union BW/BW (CU BW) is a high-precision pipe fitting designed for quick, detachable connections in fluid piping systems.

This union fitting allows easy assembly and disassembly without rotating pipes, making it ideal for maintenance, repair, and system modification in industrial, commercial, and residential applications.

Manufactured via advanced lost wax casting, it ensures excellent dimensional accuracy, corrosion resistance, and reliable sealing performance for long-term, leak-free operation.

Key Features

Detachable Union Design
Designed for quick connection and disconnection, allowing maintenance and system modification without dismantling the entire pipeline. The BW/BW structure ensures a stable and flush connection.

Premium Material Selection
Available in stainless steel, carbon steel, alloy steel, tool steel, and custom alloys. Suitable for high-pressure, high-temperature, and corrosive environments.

Precision Lost Wax Casting Process
Ensures smooth internal surfaces, tight tolerances, and consistent mechanical properties, providing reliable and uniform product quality.

Global Standard Compliance
Complies with ASTM, JIS, DIN, BS, NF, and K-version standards.
Complete size range from 1/8" to 4", meeting global pipeline requirements.

Reliable Sealing Performance
Engineered with precision mating surfaces and a nut structure to ensure a tight, leak-proof seal under varying pressure and temperature conditions.

Customizable Surface Treatment
Supports passivation, polishing, coating, and other treatments to enhance corrosion resistance and product appearance.

Technical Specifications

• Product Type: Union BW/BW (CU BW)

• 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:
  BW / BW (Butt Weld / Butt Weld)

• Manufacturing Process:
  Lost Wax Casting

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

• Weight Range:
  5g – 50kg (depending on size and material)

• Maximum Size Limit:
  500 × 500 × 500 mm

• Monthly Production Capacity:
  100 Metric Tons

Supply & Trade Terms

• 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 designated Chinese ports

• Lead Time: 30–60 days after order confirmation

Packaging & Inspection

• Packaging:
  Standard export packaging (cartons, plywood pallets, with custom packaging available)

• Inspection:
  Strict in-house inspection with optional third-party inspection 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 systems

• HVAC systems

• Fire protection systems

• Petroleum and chemical industries

• Food processing and pharmaceutical industries

• General industrial piping systems

Especially suitable for applications requiring frequent maintenance, system modification, or temporary pipeline connections.

Main Export Markets

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

Customization Support

We provide full customization for:

• Special materials

• Non-standard sizes

• Custom connection types

• Surface treatments

Our technical team is available to offer detailed consultation and tailored solutions for your specific project requirements.