Brass angled union with O-ring DN25 Hydroland SR.K25

Hydroland Brass angled union with O-ring DN25 SR.K25 is a 90° plumbing fitting designed for DN25 pipe connections. Machined from brass, the angled union provides a reliable sealed joint for water distribution and heating systems. The integrated O-ring ensures a watertight connection without the need for additional sealants, and the union construction allows for disassembly and reassembly during installation or maintenance.

Advantages

The brass construction offers corrosion resistance and mechanical strength suitable for domestic and light commercial plumbing. The O-ring seal simplifies installation by providing immediate leak protection when properly seated. The angled union design enables compact direction changes while maintaining a threaded union for easy removal or replacement of connected pipe sections.

Suitable for

• DN25 copper or brass water supply pipes
• Central heating circuits and radiator connections
• Domestic plumbing repairs and retrofits requiring a 90° joint
• Systems where periodic disassembly is necessary for maintenance

Key specifications

• Material: brass body with elastomer O-ring
• Connection size: DN25 (25 mm nominal diameter)
• Angle: 90° elbow union
• Sealing: integrated O-ring for threaded union seal
• Application medium: potable water and heating water
• Typical operating temperature: suitable for standard domestic hot water and heating systems (see system specifications)

How to use

Prepare the pipe ends by ensuring they are clean, deburred and free of contaminants. Thread the union nut onto the mating fitting or pipe end, position the O-ring in its groove, and assemble the union so that the O-ring seats evenly between the mating faces. Hand-tighten the union nut and then apply the recommended torque using a wrench until the union is secure; avoid over-tightening to prevent damage to the O-ring or threads. After installation, pressurize the system and inspect the joint for leaks. If necessary, disassemble the union to replace the O-ring or to reposition fittings.

Usage recommendations

Use compatible pipe materials such as copper or brass and verify system pressure and temperature ratings before installation. Replace the O-ring if it shows wear or deformation during maintenance. Where applicable, follow local plumbing codes and manufacturer guidance for torque values and installation practices to ensure long-term leak-free service.