SAFETY VALVES THREADED TOSACA MODEL 1216
Material:
cast iron, steel, stainless steelDimensions:
DN 15 - 400TECHNICAL CHARACTERISTICS
SAFETY RELIEF VALVE TOSACA MODEL 1216
• Calculation - EN-4126-1 / 7
• Construction design: EN-12516-1, EN-4126-1 / 7,
DIN 259 and ANSI B2.1
• Available materials - stainless steel 316 L, duplex steels.
• Working temperature range -30ºC to +350ºC.
• Temperatures fro cryogene usage: -196ºC
• Tests - EN-4126-1 / 7
• Tolerances EN-4126-1 and ASME UG-126
WORKING PRINCIPALS
Automatic safety valve opens proportional to pressure rise. The constant tension between the force of pressure and the closing spring response provides a minimum flow, which means minimal loss of fluid when the valve is actuated.
MEDIA
Steam, gases, vapours, fluids
VARIANTS
• Available body materials: stainless steel, duplex steels
On request
Materials
| Item | Description | Standard | Material Cryogenic | Duplex |
|---|---|---|---|---|
| 1 | Nozzle | A351 CF-3M | A351 CF-3M | DUPLEX 1.4462 |
| 2 | Body | A351 CF-3M | A351 CF-3M | DUPLEX 1.4462 |
| 4 | Cap | A351 CF-8 | A351 CF-8 | DUPLEX 1.4462 |
| 5 | Disc | AISI-316L | AISI-316L | DUPLEX 1.4462 |
| 6 | Guide | A351 CF-3M | A351 CF-3M | DUPLEX 1.4462 |
| 7 | Push Rod | AISI-316L | AISI-316L | DUPLEX 1.4462 |
| 8 | Spring Button | AISI-303 | AISI-303 | DUPLEX 1.4462 |
| 9 | Ajusting Screw | AISI-303 | AISI-303 | DUPLEX 1.4462 |
| 10 | Tensor Nut | AISI-303 | AISI-303 | DUPLEX 1.4462 |
| 11 | Spring | AISI-302 | INCONEL X 750 | INCONEL X 750 |
| 12 | Lever | A351 CF-8 | A351 CF-8 | DUPLEX 1.4462 |
| 17 | Release nut | AISI-304 | AISI-304 | DUPLEX 1.4462 |
| 18 | Lever axis | AISI-303 | AISI-303 | DUPLEX 1.4462 |
| 19 | Packing lever axis | AISI-303 | AISI-303 | DUPLEX 1.4462 |
| 20 | Gasket cap | PTFE | PTFE | PTFE |
| 21 | Gasket | PTFE | PTFE | PTFE |
| 22 | Gasket pack. lever | Viton | Viton | Viton |
| 28 | Soft seat | Viton / PTFE | Metal | Metal |
Characteristics
| SPECIFICATION | ||
|---|---|---|
| Connection | thread BSP / NPT pn-40 | |
| Working temperature | -30ºC to +350ºC | cryogene usage: -196ºC |
| Minimum set pressure | 2 barg | |
| Overpressure | 10% | |
| Blowdown | 10% gases | 20% fluids |
| Pressure set tolerances | ± 3% |
Dimensions
| Nom.Dia. | Orifice (mm) | Area (mm2) | A | B | C | kg |
|---|---|---|---|---|---|---|
| 1/2" x 3/4" | 13 | 133 | 45 | 57 | 155 | 2,2 |
| 1/2" x 1" | 13 | 133 | 45 | 57 | 155 | 2,2 |
| 3/4" x 1" | 14 | 154 | 45 | 57 | 155 | 2,2 |
| 1" x 1" | 16 | 201 | 45 | 60 | 155 | 2,2 |
| 1" x 1 1/4" | 16 | 201 | 45 | 61 | 155 | 2,3 |
| 1" x 2" | 22 | 380 | 62 | 87 | 234 | 4,5 |
| 1 1/4" x 1 1/4" | 18 | 254 | 45 | 62 | 155 | 2,4 |
| CM X CM | 28 | 616 | 62 | 89 | 234 | 4,6 |
| 2" x 2" | 32 | 804 | 62 | 93 | 234 | 5,1 |