Beaten collar nut without fiber seal

Optimize your copper pipe connections with thebrass collar nut (Ref. 1612). This technical accessory is a mainstay of traditional plumbing, enabling you to make highly reliable, removable connections on your drinking water and heating networks. Designed to be used with copper tube previously shaped into a "beaten collar", this nut ensures a robust mechanical connection and an irreproachable compression seal.

Certified for human consumption (CW617N)

The sanitary safety of your networks is guaranteed by the use of rigorously selected materials:

• CW617N Brass: A noble alloy, stable and resistant to dezincification, ideal for transporting water intended for human consumption.
• Sanitary compliance: This fitting complies strictly with the amended decree of May 29, 1997, guaranteeing the total harmlessness of brass in contact with drinking water.
• Manufacturing excellence: The result of precision forging and machining (or décolletage), this nut offers a homogeneous structure capable of withstanding high tightening torques without splitting.

Technical performance and flat seal

The Ref. 1612 nut has been designed to offer maximum tightness under high pressure:

• Nominal pressure 16 Bar: PN 16-certified resistance, guaranteeing the safety of your domestic installations even in the event of pressure variations.
• Wide, flat gasket spans: The nut's design allows perfect seating of the flat gasket (from 1mm thickness), ensuring even compression against the face of the flanged collar.
• ISO 228-1 standard: Tapping follows the BSPP (Gas Series) standard, ensuring universal compatibility with all male nipples and fittings on the market.

Simplified installation and maintenance

Installation is easy, and allows you to create removable connection points essential for maintenance of your equipment (water heaters, valves, meters). The hexagonal retaining plates are dimensioned to fit perfectly with commercially available flat wrenches, eliminating the need to round off corners when tightening. Its thermal versatility means it can be used on circuits ranging from -20°C to +120°C, depending on the type of gasket you use (fiber, elastomer or PTFE).

Case studies: connecting water heaters and manifolds

In a concrete case of water heater replacement, using this nut on the copper tube allows you to connect and disconnect the appliance without having to cut the piping. For example, by combining it with a male nipple, it forms an instant watertight junction thanks to a simple fiber seal. It's the essential accessory for any durable, scalable plumbing installation, offering a reliable alternative to permanent soldering fittings.

Technical features