DAFRAM S.p.A., founded in 1956, was the first company to manufacture floating ball valves in
Italy.
The long experience gathered during more than 60 years of activity ensures that DAFRAM is one of
the most famous
and competitive companies in the world.
The control valves range consists exclusively of top quality trunnion mounted ball valves for high performance and critical applications and special configurations, size 1/4” to 36”, 150 lbs to 4500 lbs, PN10 to PN450, 2000 psi to 20000 psi, full and reduced bore, in Carbon Steel, Stainless Steel, Nickel and exotic alloys, for the following services:
The product range covers the entire pressure ratings and it is available for use in special services, such as:
Due to a very large flow passage Dafram control ball valves can grant high flow coefficients compared to other valve types. Thanks to their operating principle, quarter-turn ball valves are able to control fluid flow at very small openings and to open at high differential pressure. They are also able to maintain low fluid velocity thus lower noise and vibration to the pipeline. In addition, control ball valves allow tight and fast shut-off in case of emergency.
Dafram control ball valves assure excellent flow characteristic and provide accurate, reliable control in a wide range of applications, such as chemical, power and oil, both on gas and liquid service.
The control valves range consists exclusively of top quality trunnion mounted ball valves for high performance and critical applications and special configurations, size 1/4” to 36”, 150 lbs to 4500 lbs, PN10 to PN450, 2000 psi to 20000 psi, full and reduced bore, in Carbon Steel, Stainless Steel, Nickel and exotic alloys, for the following services:
The product range covers the entire pressure ratings and it is available for use in special services, such as:
- METAL SEATED ball valves for ABRASIVE FLOWS, HIGH TEMPERATURE and LONG SERVICE LIFE
- CRYOGENIC ball valves with special STEM EXTENSION
- TOP ENTRY ball valves
- LOW EMISSION ball valves, TA-LUFT certified and HELIUM tested to VACUUM, FLUSHING and SNIFFING methods
- AGGRESSIVE CHEMICAL SERVICE and FIRE SAFE executions
Due to a very large flow passage Dafram control ball valves can grant high flow coefficients compared to other valve types. Thanks to their operating principle, quarter-turn ball valves are able to control fluid flow at very small openings and to open at high differential pressure. They are also able to maintain low fluid velocity thus lower noise and vibration to the pipeline. In addition, control ball valves allow tight and fast shut-off in case of emergency.
Dafram control ball valves assure excellent flow characteristic and provide accurate, reliable control in a wide range of applications, such as chemical, power and oil, both on gas and liquid service.
MODELS OVERVIEW
| # | Model | Design | Sizes | Ratings | Application & Design |
|---|---|---|---|---|---|
| 1. | Reduced Flow Ball (RFB) |
Trunnion mounted, reduced bore | Up to 48” | ANSI 150 to 4500 API 2000 to 20000 |
|
| 2. | Hemisphere-molded Ball (HMB) |
Segmented ball, trunnion mounted | Up to 20” | ANSI 150 to 2500 API 2000 to 10000 |
|
| 3. | V-Shaper Ball (VSB) |
V-port seat, trunnion mounted | Up to 48” | ANSI 150 to 4500 API 2000 to 20000 |
|
| 4. | Disk Controller Ball (DCB) |
Trunnion mounted with drilled disk | Up to 48” | ANSI 150 to 4500 API 2000 to 20000 |
|
| 5. | Stream Tuner Ball (STB) |
Multistage ball, trunnion mounted | Up to 48” | ANSI 150 to 2500 API 2000 to 10000 |
|
| 6. | Noiseless Ball (NLB) |
Special multistage ball, trunnion mounted | Up to 48” | ANSI 150 to 2500 API 2000 to 10000 |
|