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Union

Instrumentation tube fittings, such as unions, play a pivotal role in ensuring the seamless and leak-free connection of tubing systems in various industrial applications. When it comes to reliable instrumentation tube fittings, Instrument Fittings, a renowned union manufacturer and supplier, stands out as a trusted name in the industry.
What is a Union
A union is a fundamental component of instrumentation tube fittings that serves the essential purpose of joining two pieces of tubing together. It acts as a connector that allows for easy disconnection and reconnection of tubing systems without compromising the integrity of the connections. Unions are commonly used in applications that require periodic maintenance, repair, or system modifications.
Features of Instrument Fittings Unions
- Precision Engineering: As a leading union manufacturer, ensures that their unions are precision-engineered to meet the highest industry standards. This precision results in a secure and leak-free connection.
- Versatility: Unions are designed to accommodate a wide range of tube sizes and materials, making them highly versatile. They are suitable for various applications, including fluid and gas handling.
- Double Ferrule Design: These unions feature a double ferrule design, which enhances their reliability by providing a strong grip on the tubing. This design ensures a secure connection, even in high-pressure and high-temperature environments.

- Easy Installation: Unions are known for their user-friendly installation. Their design simplifies the assembly process, saving time and reducing the likelihood of errors.
- Corrosion Resistance: We understand the importance of longevity in industrial applications. Their unions are constructed from high-quality materials with excellent corrosion resistance, ensuring durability and a long service life.
- Leak-Free Sealing: Unions feature a compression-style fitting that creates a tight seal, preventing leaks and maintaining the integrity of the system. This feature is crucial in critical applications.
- Wide Application Range: Unions are suitable for various industries, including oil and gas, petrochemical, pharmaceutical, and many others. Their adaptability makes them a preferred choice for different system requirements.
Size | 1/4″ /1/2″ /3/4″ |
Custom Size Available | Yes |
End Connection | NPT, BSPT, BSP, Socket Weld |
Working Pressure | 6000 psi (413 bar) |
Temperature Rating | PTFE: 450°F (232°C), Grafoil: 700°F (371°C) |
Optional Sour Gas Service Valves | Available (NACE MR-01-75) |
Stem Packing | PTFE, Grafoil |
Orifice | ø4.7 |
Factory Testing | 100% factory tested prior to shipment |
- Threaded Union
- Socket Weld Union
- Compression Union
- Flanged Union
- Welding Union
- Swivel Union
- Grooved Union
- Quick-Disconnect Union
- Bulkhead Union
- Double Ferrule Union
- Oil and Gas Industry:
– Pipeline Connections: Unions are used to connect and maintain pipelines, especially in remote and rugged terrains where disassembly and maintenance are required.
– Wellhead Connections: They are employed for connecting wellheads, allowing for ease of maintenance and repairs.
- Chemical Industry:
– Transfer of Chemicals: Unions are used to join pipes and tubing for the safe and reliable transfer of various chemicals.
- Petrochemical Industry:
– Refinery Piping: Unions are utilized in the complex piping systems of refineries for both process and utility applications.
– High-Pressure Connections: In high-pressure applications, such as hydrocarbon processing, unions ensure tight connections.
- Pharmaceutical Industry:
– Sterile Connections: Unions with sanitary fittings are used to maintain sterile connections in pharmaceutical processes, ensuring product integrity.
- Food and Beverage Industry:
– Hygienic Connections: Unions are essential for hygienic connections in food and beverage processing, ensuring product quality and safety.
- Aerospace Industry:
– Fuel Systems: Unions are used in aircraft fuel systems to ensure secure connections and allow for routine maintenance.
- Automotive Industry:
– Coolant and Hydraulic Systems: Unions are employed in vehicle coolant and hydraulic systems for their ability to withstand various pressures and temperatures.
- Power Generation:
– Steam and Water Lines: Unions are used in power plants to connect and disconnect steam and water lines for maintenance and repairs.
- Marine Industry:
– Shipbuilding: Unions are used for various applications, including hydraulic systems, fuel lines, and more in ship construction and maintenance.
- Mining Industry:
– Dewatering Systems: Unions are used in dewatering systems, which remove water from mining operations for safety and efficiency.
- Construction Industry:
– Hydraulic Systems: Unions are used in construction equipment for hydraulic systems that power machinery.
- HVAC Industry:
– Cooling and Heating Systems: Unions are employed in heating, ventilation, and air conditioning systems for their adaptability to different pipe sizes.
- Water Treatment Industry:
– Distribution Systems: Unions are used in water treatment plants to connect and maintain distribution systems.
- Fire Protection:
– Fire Sprinkler Systems: Quick-connect unions are used in fire sprinkler systems, allowing for easy assembly and maintenance.
- Research and Laboratories:
– Laboratory Equipment: Unions are used in scientific and research equipment for their precision and reliability
Pricing for union fittings can vary based on factors such as size, material, type, and quantity. To get specific pricing information for Instrument Fittings union fittings, it is recommended to contact Instrument Fittings directly. They can provide you with accurate and up-to-date pricing details tailored to your requirements. You can reach out to Instrument Fittings through their official website or contact their sales or customer service department for a personalized quote.Instrument Fittings experienced staff will be able to assist you in finding the right union fittings and provide you with the pricing information you need for your specific application.
Instrument Fittings is your reliable partner for instrumentation and fluid system components, and there are compelling reasons to select us as your preferred supplier. First and foremost, our commitment to quality and reliability sets us apart. At Instrument Fittings, quality control is paramount, ensuring that our products not only meet but often exceed industry standards. When you choose us, you can have confidence in the durability and performance of our components.
We offer a diverse product range encompassing valves, fittings, and unions, making us your comprehensive source for fluid system needs. Our global presence, with offices and distributors worldwide, ensures that we can efficiently serve clients on a global scale. What truly distinguishes Instrument Fittings is our ability to provide custom solutions tailored to your unique requirements. Our engineering and design teams collaborate closely with clients to develop products that precisely meet their needs.
With decades of experience, we possess an in-depth understanding of the demands of various industries, from oil and gas to pharmaceuticals. Our priority is safety, and our designs ensure leak-free and secure connections, reducing the risk of accidents and environmental damage. Our technical expertise is at your disposal. Our knowledgeable and experienced staff are always ready to assist with technical information, product selection, and troubleshooting. Instrument Fittings is dedicated to environmental responsibility, using sustainable and eco-friendly manufacturing processes. We offer competitive pricing for our high-quality products, providing exceptional value.
Our commitment to customer support extends beyond the sale. We offer outstanding after-sales service, ensuring you have assistance with any issues or questions that may arise. We understand the importance of timely delivery, and our efficient distribution and delivery systems keep your projects on schedule. Our products meet international industry standards and certifications, guaranteeing compliance with safety and quality requirements.
When you choose Instrument Fittings, you’re selecting a partner dedicated to your success, delivering dependable products, expert support, and customized solutions. Contact us today to experience the benefits of working with a trusted leader in the instrumentation and fluid system industry.
Cities We Serve
- Delhi
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and many more. Instrument Fittings is dedicated to serving these cities across India, providing reliable instrument fittings for diverse industrial applications.
Countries We Export
- Netherlands
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Instrument Fittings global presence ensures that industries across these countries have access to its high-quality instrument fittings.