Female Flat Reach Half Union with Black Core Malleable Cast Iron Fiber Gasket - Sold as a Pair

Female Flat Reach Half Union with Black Core Malleable Cast Iron Fiber Gasket - Sold as a Pair

The Female Flat Seat Half Union with Malleable Cast Iron Fiber Gasket with Black Core is an essential component, sold in pairs of 2 plastic wraps to ensure optimal packaging and easy inventory. This fitting represents one of the threaded halves needed to create a complete union. It is designed with a flat span that allows for effective compression sealing of a flexible joint (such as the fiber gasket). It is the solution of choice for professionals looking to create quickly removable connection points. Its malleable cast iron construction gives the part the superior strength and durability that is essential for critical systems.

The Role and Key Advantage of the Half Union

To explain simply, this half-union is the tapped part that, when combined with the other half (usually a threaded male end), forms a complete union fitting . Its role is to provide you with an easy and secure disconnection point on your piping line. The main advantage of the flat seat is that it simplifies the sealing: instead of the complex metal-to-metal junction, a fibre joint is used that is crushed between the two flat surfaces when the loose nut is tightened. This design allows for quick maintenance and easy seal replacement, which is highly appreciated on water, steam or heating installations.

HVAC Applications, Plumbing & Industrial Furniture

This half-union is perfectly suited for the distribution of various fluids. It is used in water, gas, steam networks, as well as for any non-corrosive liquid and gas. The fiber gasket is ideal for heating and steam installations (general services) due to its good resistance to high temperatures. It is therefore widely used in HVAC (Heating, Ventilation and Air Conditioning) systems. Malleable cast iron with a black core, with its black finish and film pair packaging, is also a base of choice for industrial furniture. The integration of this fitting brings a very authentic and solid loft and vintage touch to furniture creations.

Design, Materials and Standards Compliance

The quality of this half-union is guaranteed by a manufacturing process that complies with industry standards. The fittings are produced and tested according to the international standards EN 10242 and ISO 49. The base material is malleable cast iron EN-GJMB-350-10 (according to EN 1562). This material provides the high mechanical strength required for pressurized networks.

Flat Seal Tightness, Protection and Packaging

The reliability of this half-union is doubly ensured by its sealing mechanism and its packaging.

• The part has a cylindrical female thread (Rp) that meets the ISO 7-1 (BSPT) standard. The central seal is provided by the compression of a fiber gasket (not included) on the flat span.

• To maximize its durability, the fitting has a black finish applied with a minimum thickness of at least 70μm (micrometers). This protective layer against corrosion maintains the integrity of the cast iron.

• The fitting is sold in a pair of 2 plastic wraps, which protects nets and flat spans from dust and damage during transport and storage.

• Each fitting is 100% tested to ensure it is watertight.

Tips for an Efficient and Secure Installation

The installation of this half-union requires special attention to the fiber seal and the pairwise packaging.

• Fiber Joint: Use a new fiber gasket , the right size, and suitable for the fluid. The gasket is essential for flat span sealing.

• External Waterproofing: Apply a sealant (Teflon or joint paste) to the tapered male thread (R) of the pipe that screws into the female end (Rp) of this half-union.

• Controlled tightening: When tightening the loose nut (from the other part of the union), be sure to compress the fiber joint well, but avoid over-tightening, which could damage the seal.

• Conditioning: The film pair sale is designed for the complete assembly of an F/F union (or other configuration); Make sure you order the number of pairs needed for your project.

Detailed technical specifications

The table below provides a summary of the key specifications of this half-union: