Tube Cap & Plug
Tube Cap & Plug
High-quality Tube Cap & Plug precision-machined compression tube fittings for leak-free instrumentation and hydraulic lines.
- Double Ferrule
- Single Ferrule
- SS 316
- Up to 6000 PSI
- NPT / BSP
Tube Cap & Plug Manufacturer in India
Sawariya Metal Industries is a manufacturer, supplier, stockist and exporter of Tube Cap & Plug in stainless steel, carbon steel, alloy steel, duplex, nickel alloy and other grades, in a wide range of sizes and pressure ratings.
Tube caps close the end of a tube and plugs close an open compression fitting port, used for testing, blanking and future connections.
Precision tube fittings are compression fittings that use front and back ferrules to grip the tube and form a leak-tight seal without welding, flaring or threading the tube. They are used on instrumentation, hydraulic, pneumatic, sampling and analyser lines.
Key Features of Tube Cap & Plug
Blanking
Closes tube ends and open ports.
Pressure Testing
Used during system testing.
Leak-Free Seal
Double ferrule design for vibration-resistant sealing.
No Hot Work
Assembled without welding, flaring or threading the tube.
Tube Cap & Plug Specifications
| Parameter | Specification |
|---|---|
| Product | Tube Cap & Plug |
| Type | Cap (for tube) / Plug (for fitting port) |
| Tube OD (Imperial) | 1/16" to 2" |
| Tube OD (Metric) | 3 mm to 50 mm |
| Working Pressure | Up to 6000 PSI (depending on size, material and tubing) |
| Threads | NPT, BSPT, BSPP, SAE / UNF, Metric |
| Ferrule Type | Double Ferrule / Single Ferrule |
| Manufacturing | CNC machined from bar stock and forgings |
Tube Cap & Plug Material & Grades
| Material | Grades / Specifications |
|---|---|
| Stainless Steel | SS 316 / 316L (ASTM A479 / A182), SS 304 |
| Duplex & Super Duplex | UNS S31803 / S32205, UNS S32750 |
| Nickel Alloys | Monel 400, Inconel 625, Incoloy 825, Hastelloy C276 |
| Carbon Steel | ASTM A108 / A105 |
| Brass | CW614N / C36000 |
Types of Precision Tube Fittings
Connectors
Male and female connectors, port connectors.
Unions
Straight, reducing and bulkhead unions.
Elbows, Tees & Crosses
Union and male / female branch fittings.
Caps, Plugs & Ferrules
End closures and replacement ferrule sets.
Applications & Industries
- Instrumentation Lines
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Plants
- Hydraulic Systems
- Pneumatic Systems
- Analyser & Sampling Systems
- Offshore Platforms
- Pharmaceutical
- Semiconductor & Gas Lines
- Process Skids
Quality & Inspection
Quality-Focused Manufacturing & Supply
Tube Cap & Plug can be supplied with inspection, testing and documentation according to the applicable standard and customer purchase order requirements.
- Dimensional & thread gauge inspection
- Ferrule hardness and fit-up check
- Visual inspection
- Positive Material Identification (PMI)
- Pressure / leak testing as applicable
- Material Test Certificate EN 10204 3.1
- Heat-code traceability on every body
Why Choose Our Tube Cap & Plug?
Leak-Free Seal
Double ferrule design for vibration-resistant sealing.
No Hot Work
Assembled without welding, flaring or threading the tube.
Interchangeable
Compatible with standard instrumentation layouts.
Precision CNC
Close tolerances for repeatable make-up.
Tube Cap & Plug Manufacturer, Supplier & Exporter
Sawariya Metal Industries supplies Tube Cap & Plug for domestic and international projects. Fittings can be supplied in standard sizes from stock and in special sizes, grades and finishes as per drawings and purchase order requirements.
Every order can be supported with Mill Test Certificates, inspection reports, third-party inspection on request and secure, export-worthy packaging.
Share your size, grade, pressure class and quantity with our team to receive a competitive quotation for Tube Cap & Plug.
Related Precision Tube Fittings
Front & Back Ferrule Set
Front and back ferrules are the sealing and gripping rings of a double ferrule fitting; replacement sets are supplied for maintenance.
Male Connector
A male connector joins tubing to a female-threaded port, with a compression end on one side and a male NPT or BSP thread on the other.
Female Connector
A female connector joins tubing to a male-threaded component, with a compression end and a female thread.
Technical Note: Dimensions, pressure ratings and material properties should be verified against the applicable ASME / MSS / DIN / ISO standard, approved drawings, purchase order and Mill Test Certificate (MTC) before final use.