s.84 EN331 spring return

Info request

full port 1/4″-2″
hot forged brass ball valves

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 are also useful in industrial applications, where a valve must not be left open unattended.

Technical Data
Quality
  • 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
  • Travel stops on body to avoid stresses at stem
  • Chrome plated brass ball for longer life with rinse hole
Body
  • Hot forged sand blasted, external nickel plated brass body and cap sealed with Loctite® or equivalent thread sealant
  • Finest brass according to EN 12165 and EN 12164 (formerly DIN 17660 and UNI 5705-65) specifications
Stem
  • Blowout-proof nickel plated brass stem
  • Maintenance- free, thanks to two FPM O-rings at the stem for maximum safety
Sealing
  • Pure PTFE self-lubricating seats with flexible-lip design
Threads
  • EN 10226-1, ISO 228 parallel female by female threads

Flow
  • Full port to DIN 3357 for maximum flow
Handle
  • 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
Working pressure & temperature
  • 40 Bar (600 PSI) non-shock cold working pressure
  • -40°C (-40°F) / +170°C (+350°F)
  • WARNING: freezing of the fluid in the installation may severely damage the valve
Options
  • AISI 430 stainless steel handle
  • Taper male by parallel female threads
Upon request
  • AISI 316 stainless steel ball
  • Custom Design
PED Directive
  • According to 2014/68/UE module A: it cannot be used with dangerous gases in sizes larger than 25 mm.
Approved by or in compliance with
  • GOST-R (Russia)
  • EAC – Declaration of conformity (Russia-Kazakhstan-Belarus)
  • RoHS Compliant (EU)

 

NOTE: approvals apply to specific configurations/sizes only.

s.84 EN331 Spring Return
Part descriptionQ.tyMaterial
1Nickel plated body (external treatment)1CW617N
2Seat2PTFE
3Chrome plated ball with rinse hole (read rinse hole on sizes from 3/4" up to 2"1CW617N
4Nickel plated end-cap (external treatment)1CW617N
5Nickel plated stem O-ring design1CW617N
6Unplated spring nut1CW617N
7O-Ring2FPM
8Spring Return1AISI302
9Yellow PVC coated Geomet® steel handle1DD11

DN shows the nominal flow diameter. Actual flow diameter complies with full port DIN 3357 part 4.
Ball valves are marked CE on handle from 1.1/4″ to 2″ as follow:
CE XXCODEXX Cat I-A

s.84 EN331 Spring Return
Pressure-temperature chart
Pressure drop chart
s.84 EN331 Spring Return
Ask for additional information on the whole range of RuB products and consult with your supplier for special applications.
XCES84EMR - 4163