A ball provided with a bore and guided by sliding shells in a geometrically adjusted housing is called a ball valve. The 90° angle opens or closes the way.
- 1-part ball valves, the low-cost variant, without exception manually operated
- 2-part ball valves, consisting of 2 body halves, automatable
- 3-part ball valves, consisting of centre piece and 2 connection ends, automatable
- Nickel-plated brass
- Cast steel, forged steel
- Stainless steel
- PTFE (reinforced with glass fibre, carbon)
- cylindrical internal thread/external thread to DIN 2999, ISO 228
- tapered female thread NPT according to ASME/ANSI B20.1
- Welding ends to DIN 3239, ISO 4200, DIN 11850
- ANSI-ASME16.5 class 150, class 300, class 600, class 1200
Installation lengths (in mm) EN 558-1
Depending on the type of connection, the installation lengths are standardised.
For flange fittings, the overall length EN558-1 (formerly DIN3202 F1, F4, F5 or DIN3202 K1 for wafer fittings) is used.
Use of ball valves manually, pneumatically or electrically operated:
- Shut-off and release of liquefied cryogenic gases up to -197°C for the food industry
- general applications in industrial applications:
- Gas and petroleum industry
- process industry
- general industry and building services
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