Product Details:
| Minimum Order Quantity | 100 Piece |
| Size/Diameter | 1/8" to 2" |
| Usage/Application | Gas Pipe |
| Connection | Female |
| Material | Stainless Steel |
| Brand | AMA |
| Thread Size | BSP, BSPT, NPT, ISO, SAE, or customized thread types |
| Maximum Pressure | Up to 6000 PSI |
| Temperature | -196 DegreeC to +600 DegreeC |
| Country of Origin | Made in India |
Aashish Metal & Alloys is a reputed manufacturer and exporter of Three Piece Unions, designed for reliable tube-to-tube connections in various industrial piping and instrumentation systems. These fittings provide a secure, leak-proof, and reusable connection that can withstand high pressure, temperature variations, and corrosive environments.
Product OverviewA Three Piece Union is a type of tube fitting consisting of three main parts – two end connectors and a central nut that holds them together. This design allows easy installation and removal without disturbing the entire piping system, making it ideal for applications where frequent maintenance, inspection, or replacement is required.
Key FeaturesDesign: Three-piece construction for easy assembly and disassembly
Sizes Available: From 1/8” to 2” (or custom sizes on request)
Materials: Stainless Steel (SS 304, SS 316, SS 316L), Brass, Duplex, Super Duplex, Copper Alloys, Nickel Alloys
Threads: BSP, BSPT, NPT, ISO, SAE, or customized thread types
Pressure Rating: Up to 6000 PSI depending on size and material
Temperature Range: -196°C to +600°C (material dependent)
Surface Finish: Smooth, corrosion-resistant finish for enhanced durability
Standards: Manufactured as per ASTM, ASME, DIN, ISO, and other international standards
Oil & Gas Industry – For high-pressure instrumentation lines
Petrochemical & Refinery Plants – Leak-proof fluid and gas transport
Power Plants – Steam, water, and hydraulic systems
Pharmaceutical & Food Industry – Clean piping systems requiring frequent maintenance
Water Treatment & Desalination Plants – Corrosion-resistant connections
Hydraulic & Pneumatic Systems – Precision tube connections in machinery
Marine Industry – Saltwater-resistant tube fittings
Quick installation and disassembly without disturbing adjacent piping
High resistance to vibration, pressure, and corrosion
Provides a reliable leak-proof seal for both liquid and gas applications
Reusable design ensures long service life
Available in multiple materials and sizes to suit diverse applications
Each Three Piece Union is packed in protective packaging to avoid damage during transit. Bulk packaging and export-quality cartons are available as per customer requirement.
✅ Suggested Product & Service Code: AMA-TF-TPU
AMA → Aashish Metal & Alloys
TF → Tube Fittings
TPU → Three Piece Union
Additional Information:
Product Details:
| Minimum Order Quantity | 100 Piece |
| Size/Diameter | 1/16" to 2" OD (Imperial) | 3 mm to 50 mm OD (Metric) |
| Usage/Application | Gas Pipe |
| Connection | Female |
| Material | Stainless Steel |
| Type | NPT, BSP (Parallel/Taper), ISO, SAE, UNF (As per requirement) |
| Brand | AMA |
| Temperature | Up to 400 DegreeC (752 DegreeF) |
| Country of Origin | Made in India |
| Maximum Pressure | Up to 6000 PSI (Stainless Steel) | Up to 3000 PSI (Brass/Carbon Steel) |
Aashish Metal & Alloys is a reputed manufacturer and exporter of Union (Tube Fittings), designed to provide a secure, leak-free, and durable connection between two tubes or pipes in a wide range of industrial applications. Tube Unions are essential components in fluid and gas handling systems, ensuring proper alignment and sealing between tubing ends without the need for welding or complex assemblies. They offer convenience, reusability, and long service life, making them one of the most widely used tube fittings in industries worldwide.
Our Tube Unions are engineered with precision and manufactured using the highest quality raw materials to meet demanding global standards. Available in both imperial (inch) and metric sizes, they are designed for tubes ranging from 1/16” to 2” OD (Outer Diameter) or 3 mm to 50 mm OD. This broad sizing range ensures compatibility with various tubing systems used in instrumentation, hydraulics, pneumatics, and process industries.
We manufacture Unions in a wide variety of materials and grades to suit different service conditions. Standard materials include Stainless Steel 304, 304L, 316, 316L, Brass, Carbon Steel, Alloy Steel, Copper Alloys, Duplex Steel, Super Duplex Steel, and Nickel Alloys such as Monel, Inconel, and Hastelloy. Each material is carefully selected to ensure excellent corrosion resistance, mechanical strength, and thermal stability in aggressive environments.
The thread types offered include NPT, BSP (parallel and taper), ISO, SAE, and UNF standards, making our Unions compatible with international piping systems. Depending on customer requirements, we supply straight unions, bulkhead unions, reducing unions, and customized configurations.
Our Tube Unions are available with pressure ratings up to 6000 PSI (410 bar) for stainless steel variants and 3000 PSI (206 bar) for brass and carbon steel variants. They are designed to perform reliably under both vacuum and high-pressure conditions. The temperature resistance of these fittings ranges up to 400°C (752°F) for stainless steel versions and up to 200°C (392°F) for brass.
The surface finish is another critical factor in our manufacturing process. We provide smooth, burr-free surfaces to ensure easy installation, excellent sealing, and long-term durability. Available finishes include natural stainless-steel silver, bright polished, electropolished, passivated, or nickel/zinc-coated finishes for carbon steel and brass options.
Unions are a straight-through fitting that allows two tubes of the same diameter to be joined while maintaining full flow capacity. They are widely used in applications such as oil & gas, petrochemicals, refineries, instrumentation systems, hydraulic lines, pneumatic systems, water treatment plants, chemical processing, power generation, pharmaceuticals, shipbuilding, and general engineering.
At Aashish Metal & Alloys, we follow strict inspection and testing procedures to ensure product quality. Each Union undergoes dimensional checks, pressure tests, hydrostatic tests, and surface inspections before dispatch. Our fittings are manufactured in compliance with ASTM, ASME, BS, DIN, and ISO standards, ensuring global compatibility.
We maintain a large-scale production capacity of more than 50,000 pieces per month, enabling us to cater to bulk orders while maintaining timely delivery. Each product is assigned a unique Product & Service Code (UTF-001) for easy traceability.
For safe transportation, our Tube Unions are packed in protective polybags, then placed in corrugated cartons, and finally secured in seaworthy wooden crates or pallets for export shipments. Customized labeling and barcoding are available upon request to meet client-specific packaging standards.
Additional Information: