Ball valves
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.
Construction:
- 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
Materials Body:
- Nickel-plated brass
- Cast steel, forged steel
- Stainless steel
Materials seals
- PTFE (reinforced with glass fibre, carbon)
- FKM
Connection types:
- 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
Pressure ratings:
- PN10
- PN16
- PN40
- PN64
- PN100
- 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.
DN/mm | Series 1 | Series14 | Series15 | Series20 | Series27 |
---|---|---|---|---|---|
15 | 130 | 115 | - | - | 115 |
20 | 150 | 120 | - | 25 | 120 |
25 | 160 | 125 | 120 | 25 | 125 |
32 | 180 | 130 | 140 | 33 | 130 |
40 | 200 | 140 | 240 | 33 | 140 |
50 | 230 | 150 | 250 | 43 | 150 |
65 | 290 | 170 | 270 | 46 | 170 |
80 | 310 | 180 | 280 | 46 | 180 |
100 | 350 | 190 | 300 | 52 | 190 |
125 | 400 | 200 | 325 | 56 | 325 |
150 | 480 | 210 | 350 | 56 | 350 |
200 | 600 | 230 | 400 | 60 | 400 |
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 https://www.buschjostventile.de/en/products/195/A-0723-28-0804-CRY
- general applications in industrial applications:
- Gas and petroleum industry
- process industry
- general industry and building services https://www.buschjostventile.de/en/products/200/A-0701-0804-A-0711-0804