Trakya Döküm Flat Seat Union
Trakya Döküm Straight Union
Trakya Döküm straight unions are three-piece fittings that connect two pipes or pieces of equipment in a pipeline and allow parts to be removed and refitted when needed without cutting the line. Unlike conical (taper-seat) unions, their sealing faces are flat and require a gasket (fiber, rubber or Klingerit) for a secure seal.
Technical Specifications
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Material: Black-heart malleable cast iron, grade EN-GJMB-350-10.
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Manufacturing Standard: EN 10242, Design Symbol A.
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Thread Type: Precision internal threads to ISO 7-1 (R/Rp).
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Sealing Type: Flat seat (sealed with a gasket).
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Pressure rating: PN 25 (25 bar) operating pressure.
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Surface options: * Black: Oiled raw casting.
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Galvanized: Rust-resistant hot-dip galvanized coating.
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Benefits
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Easy Disassembly: Allows the system to be separated and serviced at any point in the installation without rotating the pipes on their axis.
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Ductile Material: Thanks to its malleable cast iron structure, it withstands high tightening torques and minimizes the risk of cracking during installation.
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Precision Workmanship: Smooth seating faces make perfect contact with the gasket and ensure a tight seal.
Applications
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Plumbing and cold water lines.
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Heating systems and radiator connections.
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Inlets and outlets of equipment that needs servicing, such as pumps and valves.
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Low-pressure air and liquid lines.
Types
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Internal-Thread Straight Union: For connections with internal (female) threads on both sides.
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External-Thread (Tail) Straight Union: For connections with an internal thread on one side and an external thread on the other (male-female).
Info: All standard sizes from 1/2" to 3" are available. Contact us for product selection and product advice.