Several governmental authorities recommend use of special alloys for valves handling water in areas where there is a problem of dezincification. RuB DZR valves are designed to meet such requirements.

Through the use of new technology these valves retain the reliability and competitiveness of brass, but are comparable to bronze in corrosion resistance.

Be kind with yourself, make sure the valve that brings you pure fresh water is an RuB DZR valve.

Technical Info

  • 24h 100% seal test guaranteed
  • Dual sealing system allows valve to be operated in either direction making installation easier
  • No metal-to-metal moving parts
  • No maintenance ever required
  • Handle clearly shows ball position
  • Silicone-free lubricant on all seals
  • Chrome plated DZR brass ball for longer life
  • Handle stops on body to avoid stress at stem
  • Full port to DIN 3357 for maximum flow
  • Hot forged sand blasted DZR unplated body and cap sealed with Loctite® or equivalent thread sealant
  • Dezincification resistant ADZ-T and ADZ-P brass approved to SBN-PFS 1983:2 and NR-BFS 1988:18 specifications
  • Geomet® carbon steel handle with thick PVC dip coating. Handle coating offers both thermal and electrical protection
  • Handle removable with valve in service
  • WARNING: do not exceed reasonable temperature and/or electrical load
  • Maintenance-free, double FPM O-rings at the stem for maximum safety
  • Blowout-proof unplated DZR brass stem
  • 30 bar (450 PSI) non-shock cold working pressure
  • -40°C to +170°C (-40°F to +350°F)
  • WARNING: freezing of the fluid in the installation may severely damage the valve
  • Pure PTFE self-lubricating seats with flexible-lip design
  • CW617N brass body and components
  • T-handle
  • Stainless steel handle (1.4016/AISI 316)
  • Oval lockable handle up to 2″, round over 2″
  • Brass stem extension
  • Patented locking device
  • Stubby handle up to 2″
  • RuB memory stop designed to be installed with our stubby handle
  • EN 10226-1, ISO 228 parallel female by female threads
  • Crimp/press end connections
  •  Stainless steel ball (1.4401/AISI 316)
  • Glass filled PTFE seals
  • Custom design
  • According to 2014/68/UE module A: it cannot be used with dangerous gases in sizes larger than 25mm
  • KIWA Regulation 4 a.k.a. KUKreg4 (United Kingdom) for sizes 1/2” through 2”
  • GOST-R (Russia)
  • EAC – Declaration of conformity (Russia, Kazakhstan, Belarus)
  • RoHS Compliant (EU)
  • Water Regulations Advisory Scheme (United Kingdom) for sizes 1/2” through 2”

  NOTE: approvals apply to specific configurations/sizes only.

1.1/4”-2” hollow ball

Part description Quantity Part Material
Unplated body
Ball seat
Chrome plated ball
Unplated end-cap
Unplated stem O-ring design
Stainless steel nut
1.4305 / AISI303
White PVC coated Stainless steel handle
1.4016 / AISI430

DN shows the nominal flow diameter. Actual flow diameter complies with full port DIN 3357 part 4. Stem configuration of valves over 2” is slightly different. Ball valves are marked CE on handle from 1.1/4” to 2”, on body over 2” as follow: CE XXCODEXX Cat. I-A

Pressure-temperature chart
Pressure drop chart

Technical material

Ask for additional information on the whole range of RuB products and consult with your supplier for special applications.


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