LOWCAV and LOWNOISE X-TRIM Cage valves are engineered for those services where is required pressure and flow rate control with reduced cavitation and noise issues.
GENERAL CONSTRUCTION
Cage Valves model LOWCAV and LOWNOISE are mainly suitable for liquid, steam and gas applications in standard and severe services (with low/cryogenic and high temperature). A dedicated designed X-TRIM is optimized for cavitation control (LOWCAV) and noise reduction (LOWNOISE) with very high rangeability and high FL values in throttling service. X-TRIM design for extreme applications!
MATERIALS OF CONSTRUCTION
STANDARD FEATURES
| Construction | Three/two pieces bolted body with plates or pin |
| Trim | Cage X-trim optimized from cavitation control (LOWCAV) or noise reduction (LOWNOISE) |
| Stem retention | Anti blow-out stem |
| Leakage rate | ISO 5208 (for shutoff) and FCI 70-2 / IEC 60534-4 |
| Antistatic device | Included, the ball valve design includes an electric conductive connection between the internal parts of the ball valve and the body, providing the anti-static function. |
| Pressure relief | Automatic cavity relief to prevent overpressure in body cavity (self-relieving seats) |
| Sealing | Regulation: Unidirectional Shut-off: Bi-directional, Double block & bleed (DBB) with sealing in both directions (DIB-1&2 upon request). Metal seated with Tungsten or Chrome Carbide coatings |
| Drain | Drilled and threaded connections for all sizes |
| Vent | Drilled and threaded vent connections for sizes = DN150 (6″) < DN150 upon request |
| Stem grease injectors | On request |
| Seat grease injectors | Not foreseen on this model |
| Lifting points | Included for sizes = DN150 (6″) or on valves of 250 kg min |
| Support feet | Included for sizes = DN150 (6″) or on valves of 250 kg min |
| Stem extension | On request |
| Valve operation | Gear box with positioning indicator or self-adjusting closed ring control system with actuator and positioner |
| Material testing | Pressure containing & controlling parts to EN 10204 3.1 Materials in Sour Service according to NACE MR0175, MR0103, ISO 15156 Non-destructive testing (NDT) to API 6D, ASME B16.34 |
| Valve testing | Hydrostatic & pneumatic testing to API 6D/ISO 5208 and FCI 70-2 / IEC 60534-4 (other upon request) |
TECHNICAL DATA
| Design | API 6D, API 6DSS, API 6A, ASME B16.34, ISO 14313, ISO 10423, ISO 17292 |
| Design pressure | ASME B16.34, EN 1092-1, ISO 17292 |
| Body wall thickness | ASME B16.34, ASME VIII Div. I, ISO 17292 |
| Face to Face | API 6D, ASME B16.10 Long pattern |
| Temperature range | -196° to > 700°C (-320° to > 1292°F) |
| Pressures range | PN20 (ANSI 150) to PN420 (ANSI 600) |
| Size range | DN50 (2″) to DN600 (24″) other on request |
| End connections | ASME B16.5 ≤ DN600 (24″) Flanged RF,FF,RTJ MSS-SP-44 = DN550 (22″) Flanged RF,FF,RTJ ASME B16.25 Butt-Weld BW Hub&Clamp |
APPROVALS
| Safety Integrity Level | SIL 3 |
| Fire Safe | API 607, API 6FA, BS 6755, ISO 10497-5 |
| Area Classification | ATEX 94/9/EC |
| Pressure Equipment Directive | PED 97/23/EC |
| Fugitive Emission | ISO 15848/1 |
| Construction | API 6D |
