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- Steel Coupling 1/4" BSP Weldable
- Coupling 1/2'' steel for welding
- Washer metal rubber M10
- Washer metal rubber 1/4''
- Coupling 1 1/4'' steel for welding
- Washer metal rubber M12
- Copper washer 11x16x1mm
- Coupling 1 1/2'' steel for welding
- Washer metal rubber M14
- Washer metal rubber 1/2''
- Coupling 1'' steel for welding
- Washer metal rubber M8
Browsing options
Categories
Shape
Size
Material
Connection Type 1
Connection Type 2
Male Union 1/2" with Gasket
Nipple 1 1/4'' Union with Taper Seal
Nipple union 1 1/2'' sealing cone
Nipple union 1 1/4'' sealing cone
Nipple union 1 1/4'' with gasket
Nipple union 1'' sealing cone
Nipple union 1/2'' sealing cone
Nipple union 1/4'' sealing cone
Nipple union 3/4'' sealing cone
Nipple union 3/8'' sealing cone
Union 1 1/2'' Galvanized Malleable Iron with Gasket
Union 2" Cast Iron with Gasket
Union 3/4'' galvanized cast iron F-F
Galvanized Cast 1 1/2'' Iron Union with Gasket
Union 4'' galvanized cast iron F-F
Union 1 1/2'' galvanized cast iron F-F
Union 1 1/4'' galvanized cast iron F-F
Union 1'' galvanized cast iron F-F
Union 1/2'' galvanized cast iron F-F
Union 1/4'' galvanized cast iron F-F
Union 2 1/2'' galvanized cast iron F-F
Union 2'' galvanized cast iron F-F
Union 3'' galvanized cast iron F-F
Union 3/8'' galvanized cast iron F-F
Cast Iron Straight Unions
Cast Iron Straight Unions are durable threaded pipe fittings designed to provide a secure, leak-tight, and easily detachable straight connection between two threaded pipe sections. Their three-piece construction allows quick assembly and disassembly without rotating the connected pipes, making installation, maintenance, and repairs simple and efficient. Manufactured from high-quality cast iron, these straight unions offer excellent mechanical strength, reliable sealing performance, and long service life. They are widely used in water supply, gas distribution, heating systems, compressed air installations, fire protection, irrigation, and general industrial piping where dependable threaded connections are required.
Customers may also search for these products using the following names: cast iron straight union, straight union fitting, cast iron pipe union, threaded cast iron union, malleable iron straight union, black malleable iron union, straight pipe union, union coupling, three-piece union, BSP cast iron straight union, NPT cast iron straight union, female threaded union, industrial straight union, water pipe union, gas pipe union, threaded pipe connector, straight threaded connector, disconnect union, pipe coupling, iron union fitting, cast iron threaded connector, and cast iron threaded fitting.
Cast Iron Straight Unions are available in a wide range of thread standards and sizes, making them suitable for low- and medium-pressure applications. Their precision-machined threads ensure secure installation, dependable sealing, and reliable long-term performance in industrial, commercial, and utility piping systems.
You can order these products from POLBERIS, where you will find a comprehensive selection of premium-quality Cast Iron Straight Unions, threaded pipe fittings, valves, and industrial piping components at competitive prices.