Local Storage seems to be disabled in your browser.
For the best experience on our site, be sure to turn on Local Storage in your browser.

Lead-free DZR brass ball valves

a visual of the cutaway Serena valve showing the inside of the valvea visual of the cutaway Serena valve showing the inside of the valve
logo Serenalogo Serena

High performance & Eco-design

Guarantee 15 years
PN40 up to 2"
Gland packing
New brass CW724R
Lead-free
Dezinctification-resistant
Drilled ball
Low carbon design®

A complete range for heating, drinking water, air conditioning, watering and irrigation

FLAT STEEL HANDLE - BLACK FINISH

FLAT STEEL HANDLE - BLACK FINISH

ALUMINIUM BUTTERFLY HANDLE - BLACK FINISH

ALUMINIUM BUTTERFLY HANDLE - BLACK FINISH

The valve meets the design requirements of the EN 13828 standard and the rigorous testing standards of the German DVGW regulation.

Design requirements:

  • Resistance to dezincification of copper alloys
  • Compliance with specific stainless steel grades (e.g., for the ball)
  • Connection requirements
  • Ensure the correct closing direction is maintained
  • Rotation stops must clearly indicate the positions (open or closed)
  • Compliance with internal diameters to ensure full bore flow

Performance requirements:

  • Controlled operating torque
  • Sealing
  • Sealing angle (seat overlap angle on the ball)

Durability tests:

  • Torsion tests
  • Bending tests
  • Mechanical stop tests
  • Acoustic tests (Class 1: ≤ 20 dB)
  • Endurance tests (cycle requirements)

Our mechanical tests carried out on valves show results more than twice as high as the requirements of the standard.

The DVGW certification for drinking water is currently in progress.

Principle of the drilled ball

Drilled ball shut-off valves, when in the open position, help prevent water retention zones between the ball and the valve body, which could otherwise promote bacterial growth and limescale build-up.

drilled balldrilled ball

Technical specifications:

PN40 up to 2"

15-Year Guarantee

Applications: heating, drinking water, air conditioning, watering and irrigation

PS: 40 bar
TS: -10 °C to +120 °C
Full Bore according to EN 13828.


Construction:

  • New design in raw, non-nickel-plated brass. New eco-design with CW724R brass.
    Lead-free. High mechanical performance. Dezincification-resistant.
  • ANSI 304 stainless steel ball from 3/4" and above (DWD ready CW724R brass ball up to 1/2")
  • Drilled ball
  • Blowout-proof stem
  • Wide flat sealing surface
  • Corrosion-resistant handle and nut
  • Handle with integrated hole for locking the valve using a Rilsan® tie, and available with customisation
  • Traceability for handle and body

Sealing: PTFE gland packing

Connection:

Regulation: product excluded from 2014/68/EU Directive (Article 4, §3)

3D Serena®Valve by Sferaco

Serena - Your Serenity! A complete range for heating, drinking water, air conditioning, watering and irrigation. This valve meets the design requirements of the EN 13828 standard and the rigorous testing standards of the German DVGW regulation.