DVGW - Hygiene
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Technical Info
- Dual sealing system allows valve to be operated in either
direction making installation easier - No metal-to-metal moving parts
- No maintenance ever required
- Silicone-free lubricant on all seals
- Chrome plated brass ball for longer life
- 100% seal test guaranteed in according to EN 12266-1 RATE A
(intended when the product is in brand new condition)
- Full port to DIN 3357 for maximum flow
- Hot forged sand blasted, external nickel plated brass body and
cap sealed with Loctite® or equivalent thread sealant - Integrated ISO 5211 and DIN 3337 mounting flange for
universal connection to actuator - Finest brass according to EN 12165 and EN 12164 specifications
- Integrated sturdy ISO 5211 flange allows direct mounting of electric and pneumatic actuators, with no bracket or coupling required. See RuB line of electric and pneumatic actuators.
- Blowout-proof nickel plated brass stem
- Maintenance-free, double EPDM O-rings at the stem for maximum safety
- Shell rating: 40 bar (600 PSI) non shock cold working pressure
- Seat rating: Delta P max permissible 16 bar (230 PSI) non shock cold working pressure
- -20°C to +150°C (-4°F to +302°F)
* Limitations for potable water use: 10 bar (Kg/cm²) non- shock cold working pressure and +2°C / +65°C temperature
(occasional excursions up to 85°C are permitted for a period of 1 h maximum) - WARNING: freezing of the fluid in the installation may severely damage the valve
- Pure PTFE self-lubricating seats with flexible-lip design and wear compensation design
- Rack and pinion pneumatic actuator (spring return or double acting)
- Compact power electric actuator
- EN 10226-1, ISO 228 parallel female by female threads
- Custom design
- NPT taper ANSI B.1.20.1 female by female threads, unplated body
- According to 2014/68/UE module A: it cannot be used with dangerous gases in sizes larger than 25mm
- Attestation de Conformité Sanitaire (France)
- DVGW Hygienic suitability (Germany)
- Water Regulations Advisory Scheme (United Kingdom)
- RoHS Compliant (EU)
NOTE: approvals apply to specific configurations/sizes only.
| Part description | Quantity | Part Material |
|---|---|---|
|
Unplated body
|
1
|
CW511L
|
|
Seat
|
2
|
PTFE
|
|
Chrome plated ball with rinse hole (rinse hole on sizes from 3/4” up to 1”)
|
1
|
CW511L
|
|
Unplated end-cap
|
1
|
CW511L
|
|
Unplated stem O-ring design
|
1
|
CW511L
|
|
Washer
|
1
|
PTFE carbon filled 25%
|
|
O-Ring
|
2
|
EPDM
|
|
O-Ring
|
2
|
EPDM
|
DN shows the nominal flow diameter. Actual flow diameter complies with full port DIN 3357 part 4.
Ball valves s.65 size 1 1/4” are marked CE as follows: CE Cat I-A
Torque for actuator sizing N.m
Torque correction factors
Valve torque can vary according to operating frequency, temperature and friction characteristics of the media. If media has more or less friction than water, multiply torque by the following factors.
| Lubricating oils or liquids | 0.8 |
| Dry gases, natural gas | 1.5 |
| Slurries or liquids bearing abrasive particles | 1.5÷2.5 |
Pressure-temperature chart
Pressure drop chart
Technical material
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