Access to fluid systems in public places could potentially convert into costs and safety problems. In order to avoid unattended valves being left open with negative economic or environmental consequences, RuB developed the automatic
self-closing valve.

The valve can be opened normally by rotating the handle 90° and when the user releases the handle, the valve shuts off automatically.

Best solution for service stations, trucks, public areas, gardens.

The same features is also useful in industrial applications, where a valve must not be left open unattended.

Now approved for HTB use (Hochtemperaturbeständigkeit)
Class B 0,1 (0,1 bar @650°C for at least 30 minutes).

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
  • Handle stops on body to avoid stress at stem
  • Chrome plated brass ball for longer life
  • 100% full port for maximum flow
  • Hot forged sand blasted, nickel plated brass body and cap sealed with Loctite® or equivalent thread sealant
  • Valve length according to DIN 16722 M3 for sizes from 3/8” to 2” (DN10 to DN50). Size 1/4” (DN 8) complies to DIN 3202 M3.
  • Finest brass according to EN 12165 and EN 12164 specifications
  • Robust spring ensures auto shutt-off with max pressure in valve
  • Geomet® carbon steel handle with thick PVC dip coating. Handle coating offers both thermal and electrical protection
  • WARNING: do not exceed reasonable temperature and/or electrical load
  • Blowout-proof nickel plated brass stem
  • Maintenance- free, double FPM O-rings at the stem for maximum safety
  • 65 bar (940 PSI) up to 1″, 40 bar (600 PSI) over 1″ non-shock cold working pressure
  • -20°C to +170°C (-4°F to +350°F)
  • For use with dangerous fluids temperature rating is -20°C to +60°C (-4°F to +140°F) and pressure rating is 5 bar (72 PSI) / HTB Class B 0,1
  • WARNING: freezing of the fluid in the installation may severely damage the valve
  • Pure PTFE self-lubricating seats with flexible-lip design
  • Stainless steel ball (1.4401 / AISI 316)
  • Custom design
  • Stainless steel handle (1.4016 / AISI 430)
  • EN 10226-1, ISO 228 parallel female by female threads
  • Assessment according to Pressure Equipment Directive 2014/68/UE module B+D by ICIM (0425)
  • DVGW (Germany) – MOP 5 B 0,1
  • GOST-R (Russia)
  • EAC – Declaration of conformity (Russia, Kazakhstan, Belarus)
  • RoHS Compliant (EU)

  NOTE: approvals apply to specific configurations/sizes only.

1.1/4”-2” hollow ball

Part description Quantity Part Material
Nickel plated body
Chrome plated ball
Nickel plated end-cap
Nickel plated stem O-ring design
Unplated spring nut
Spring return
1.4310 (AISI 302)
Yellow PVC coated Geomet® steel handle
DD11 (EN10111)

Ball valves are marked CE on handle from 1.1/4” to 2” as follow: CE 0425 Cat IIIB+D PS: 5 GAS TS1: -20°C TS2: +60°C

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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