GENERAL APPLICATIONS
Thanks to their unique combination of control, reliability and compactness, CVB QTV Series valves is worldwide Customers preferred choice, the right solution to be specified in their applications.
TOV features and design makes them fit for purpose in tight shut-off, critical high pressure, high temperature or cryogenic, throttling and isolation duties.
Core Features
- Triple eccentric design
- Full metal construction
- Wide range of materials and sizes
- Resilient metal-to-metal seal
- Available with replaceable seat
- Zero leakage bi-directional tight shut-off
- Integral external position indicator on valve shaft and body
- Fire-safe and fire-tested
- External anti-blowout device
- Quarter turn friction-free operation
- Ready for control duties
Benefits of QTV Series
Unique Triple Eccentric metal seat design to:
- Prevent wear
- Guarantee zero leackage
- Guarantee longer service life
- Allow for low operating torques
- Achieve tight seal from bi-directional pressure
- Resist to corrosion and erosion
One piece conical and inclined seat integrated body to guarantee:
- Ultimate rigidity
- Leak free performances
- Continuous flange sealing surface
One piece shaft and disc arrangement to:
- Guarantee minimal hysteresis
- Reduce pressure drop
- Improve flow capacity
Special bushing to:
- Offer immunity to any dirt
- Guarantee service with polymeric media
- Guarantee a longer life service
Adjustable stuffing box to
- Allow flushing
- Provide additional sealing
- Allow leakage control
- Guarantee monitoring
Product Specifications
Production Range |
ND 2” – 120” ANSI CI.150 larger size upon request |
| ND 2” – 120” ANSI CI.300 larger size upon request |
|
| ND 3” – 60” ANSI CI.600 larger size upon request |
|
| ND 6” – 32” ANSI CI.900 larger size upon request |
|
| ND 6” – 32” ANSI Cl. 1500 body some sizes with reduce class trim |
|
| ND 6” – 16” ANSI CI.2500 body some sizes with reduce class trim |
|
Pressure Limit |
From full vacuum up to 450 bar (2200 psi) |
Temperature Limits |
From -196°C (-320°F) up to +818°C (+1600°F) | Applicable Standards |
Design: ANSI B16.34/ ASME VIII/ API 609 |
| Face to face: API 609 / ISO 5752 short | |
| Flange: B16.5/ B16.47/ASME VIII/ DIN/ ISO | |
| Testing: API 598 | |
| Fugitive emission: ISO 150484-1 | |
| Fire test: BS 6755–API607-ISO FDIS 10497 NORSOK |
Body Style |
Wafer |
| Lug | |
| Double Flanged – short and long pattern | |
| For FtF dimensions, please refer to relevant technical brochure | |
Materials |
Carbon Steel |
| Stainless Steel | |
| Alloy Steel | |
| Duplex - SuperDuplex | |
| Monel | |
| Aluminium bronze | |
| Titanium | |
| Hastelloy | |
| Austenitic Steel | |
| Inconel | |
Ratings |
ANSI CI.150 – 300 – 600 – 900 – 1500 – 2500 |
| NP 6 – 10 – 16 – 25 - 40 – 64 - 100 - 150 - 250 |
