ELBOW UNION F/F(CULB FF)

Product Overview

The 90° Elbow Union F/F (CULB FF) is a precision-engineered pipe fitting that integrates a right-angle elbow with a female-to-female detachable union.

This dual-function fitting allows for seamless 90-degree directional changes while providing a quick, tool-friendly connection in fluid piping systems. By combining two functions in one component, it reduces installation time, minimizes potential leak points, and simplifies maintenance in industrial, commercial, and residential pipelines.

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

Key Features

90° Elbow + F/F Union Integrated Design
Combines a 90° flow redirecting elbow with a female-to-female detachable union in a single fitting. Enables simultaneous pipeline angle change and quick connect/disconnect for easy maintenance, repair, or system modification without disturbing the entire network.

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 environments.

Precision Lost Wax Casting Process
Ensures smooth internal surfaces, tight dimensional tolerances, and uniform mechanical properties. Minimizes flow resistance and guarantees consistent product quality.

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

Reliable Sealing Performance
Precision mating surfaces and a heavy-duty hex nut structure provide a tight, leak-proof seal, maintaining stable performance under varying pressures and temperatures.

Space-Saving Installation
The integrated design eliminates the need for separate elbows and unions, reducing installation time and material costs. Ideal for tight spaces, retrofit projects, and complex piping layouts.

Customizable Surface Treatment
Supports passivation, polishing, coating, and other treatments to enhance corrosion resistance, aesthetics, and service life.

Technical Specifications

• Product Type: 90° Elbow Union F/F (CULB FF)

• Angle: 90°

• 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

• 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 (cartons, plywood pallets, custom options available)

• Inspection: Rigorous in-house 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

Particularly suitable for projects requiring frequent maintenance, system modification, or space-constrained installations.

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 angles

• Surface treatments

Our technical team offers detailed consultation and tailored solutions to meet unique project requirements.