Hydrofit Engineers supplies SS double compression fittings for instrumentation tube connections, replacement requirements and related industrial applications. Based in Chennai, Hydrofit supports customers across India with fitting selection based on the actual tube, connection and service requirement.
For a suitable selection, confirm the tube outside diameter, metric or inch system, fitting configuration, thread or end connection, material, media, working conditions and quantity. A fitting should not be selected only by an approximate visual match.
The product range below includes the existing connector, elbow, union, tee, bulkhead, cross and reducing configurations. Select the configuration according to the tube route, branch requirement and mating connection.

The SS Male Connector ensures a robust, leak-proof connection in hydraulic and pneumatic systems. Manufactured from premium-grade stainless steel, it offers high corrosion resistance, precision threading, and compatibility with various tubing materials for seamless instrumentation flow.

The SS Equal Elbow provides a 90° directional change in tubing systems, maintaining consistent flow and pressure. Engineered from durable stainless steel, it is ideal for high-pressure and corrosive applications in hydraulic, pneumatic, and instrumentation lines.

The SS Equal Union enables secure and reliable tube-to-tube connections. Crafted from high-strength stainless steel, it delivers long-lasting performance, excellent corrosion resistance, and precision alignment for hydraulic, gas, and process control systems.

The SS Equal Tee fitting allows equal branch connections within tubing networks. Designed for strength and efficiency, it supports high-pressure operations while ensuring optimal flow distribution in hydraulic and instrumentation applications.

The SS Bulkhead Union is designed for leak-free tube connections through panels or enclosures. Made from corrosion-resistant stainless steel, it ensures durability, stability, and precision sealing for fluid and gas transfer systems.

The SS Equal Cross provides four-way tube connections for balanced flow distribution. Ideal for complex hydraulic and pneumatic systems, it offers excellent strength, dimensional accuracy, and resistance to corrosion and vibration.

The SS Female Connector delivers a tight, reliable seal between male-threaded components and tubes. Its high-grade stainless steel construction ensures superior performance in high-pressure, corrosive, and instrumentation environments.

The SS Reducing Union connects tubes of different diameters efficiently while maintaining leak-free flow. Built from premium stainless steel, it’s ideal for space-optimized installations in hydraulic and gas systems.

The SS Female Run Tee offers versatile branch connections with a female-threaded run. Designed for precision and durability, it ensures excellent sealing performance in demanding hydraulic, pneumatic, and instrumentation circuits.
A double-ferrule instrumentation fitting assembly uses a fitting body, front ferrule, back ferrule and nut with a compatible instrumentation tube. During assembly, the nut drives the ferrules into the fitting body so the connection can be made to the selected tube and end configuration.
This is an instrumentation tube-fitting system. It should not be treated as interchangeable with DIN 2353 hydraulic cutting-ring fittings; the correct fitting family must be selected for the specific connection design.
| Selection item | Information to confirm |
|---|---|
| Fitting family | SS double-compression / double-ferrule instrumentation tube fitting. |
| Configuration | Choose from the existing straight, elbow, union, tee, bulkhead, cross, reducing or connector options as required. |
| Tube connection | Confirm tube OD and whether the requirement is metric or inch. |
| Thread or end connection | Confirm the mating connection and thread details for the selected fitting. |
| Material | Confirm the required stainless-steel grade for the selected configuration and service. |
| Working conditions | Confirm pressure, temperature and media for the specific fitting and tube combination. |
Pressure and temperature capability are not one common value for every fitting. They depend on the selected configuration, material, tube and system conditions.
Compatibility begins with the instrumentation tube: its outside diameter, wall thickness where relevant, material and condition must suit the selected fitting. The fitting material, media, operating temperature, pressure and end connection should also be considered before ordering.
For the related tubing product family, see Hydrofit’s SS instrumentation tubes. The tube page remains about tubing, while this page focuses on the connection fitting.
Stainless-steel material selection should follow the actual service requirement. Fluid or gas media, concentration, temperature, environment and system requirements all matter; one material is not automatically suitable for every corrosive or process service.
Where the fitting connects to instrumentation equipment, review the relevant SS instrumentation valves, SS high-pressure fittings or the high-pressure needle valve range as applicable.
For a replacement requirement, provide the tube OD, metric or inch system, configuration, thread or end connection, material requirement and any existing fitting markings. A clear photograph, sample or drawing can help identify the required item more accurately.
These fittings are used where instrumentation tubing needs to connect with components in measurement, sampling and process-line arrangements. The final selection should reflect the actual tubing, media and installation conditions.
Hydrofit Engineers is based in Chennai and supports instrumentation fitting enquiries across India.
It is a tube-connection system that uses a fitting body, front ferrule, back ferrule and nut with a compatible instrumentation tube.
No. Tube OD, metric or inch sizing, configuration, thread/end connection, material and service conditions should be confirmed.
No. They are different connection systems and should be selected according to the applicable product design and installation requirement.
Share the available dimensions, configuration, thread details, material requirement, tube information, service conditions and any marking, drawing, sample or clear photographs.
Hydrofit is based in Chennai and supports instrumentation fitting enquiries across India.