QVV Major Vacuum Breaker
Description
A compact, quick acting, sanitary major vacuum breaker valve for eliminating air from processing lines. It offers two-way passage of air until the line is pressurized, then the plug rises, closing the valve. When depressurized, the plug drops, which allows air back into the system, draining the line. The QVV/ QVVO valve offers 7 times the air flow of our QV/QVO valve.
FEATURES
- Easy to clean, disassemble and assemble
- All 316 stainless steel except the 302 SS spring
- Positive sealing with negligible spitting
- Both the QVV and QVVO have the same action.
- The QVVO, with its O-ring seal, is designed for hot, crusting liquids and abusive environments, where the QVV’s metal-to-metal seat may be damaged.
DAIRY OPERATION NEEDS FOR VACUUM BREAKING & VENTING:
HTST pasteurization - for protection of heat generators against siphon drainage; Vacuum pasteurization - preventing exposure of flow diversion valves to downstream vacuum; Cleaning and purging lines with compressed air.
Uses:
- Siphon prevention.
- Venting air from liquid lines and allowing lines to drain.
- Preventing vacuum in liquid lines (not tanks).
QVV/QVVO VALVES
These valves work reliably when used in milk processing lines. Milk fats serve as lubricants for the valves. For products not containing natural lubricants, approved lubricants may be used. If using a QVVO valve, try teflon coated Buna-N or Viton O-rings.
Valve Specification
| Line Size | 2" |
| Valve Height | 4" |
| Q-Seat Diameter | 1 - 1/4" |
| Orifice Diameter - Minor | 11/32" |
| Orifice Diameter - Major | 1" |
Diagram
Notes:
- Due to varying conditions of each system, every Q-Control valve should be tested in place before being relied upon for protection during operation.
- Information presented is general and may not apply to the conditions of individual installation.
- . The manufacturer’s warranty relates to workmanship, sanitary requirements, and action as tested when shipped. Any liability cannot exceed the price of the valve.
| Item | Part No. | Description | Material |
|---|---|---|---|
| 1* | QVV20UB | Upper Body - QVV | 316SS |
| 2* | QVV20PL | Plug - QVV | 316SS |
| 3 | QVV20BS | Base | 316SS |
| 4 | QVV20SP | Spring | 302SS |
| 5 | 40MPU-2 | Gasket - 2" TriClover | Buna-N |
| 6 | 13MHLA-2 | Clamp - 2" TriClover | 302SS |
| 7 | QVV20LB | Lower Body | 316SS |
| ALSO AVAILABLE | |||
| 8 | QVVO20UB | Upper Body - QVVO (not shown) | 316SS |
| 9 | QVVO20PL | Plug - QVVO (not shown) | 316SS |
| 10 | OR214B | O-ring (not shown) | Buna-N |
| OR214TC | O-ring, Teflon Coated | Buna-N | |
| OR214BV | O-ring |
Viton |