Tosaca Threaded Safety Valves Model 1400
TECHNICAL DESCRIPTION
SAFETY OVERFLOW VALVES TOSACA MODEL 1400
• Dimensioning – EN-4126-1 / 7
• Structural design EN-12516-1, EN-4126-1 / 7
• Materials – EN / ASTM
• Tests – EN-4126-1 / 7, MSS-SP-55
• Tolerances EN-4126-1 and ASME UG-126
PRINCIPLE OF OPERATION
Automatic safety valve that opens proportionally to pressure rise.
The constant force between the pressure force and the reaction of the closing spring ensures minimal flow, respectively minimal fluid loss when the valve is actuated.
WORKING FLUID / MEDIUM
Steam, gases, gas vapors and liquids
OPTIONS
• Available body materials: ductile iron, carbon steel, stainless steel, LCC, duplex and super duplex steels
• Available seat sealing materials: metal/metal, PTFE, Viton and Stellite
Upon request
Dimensions: DN 15 – 400
The TOSACA Threaded Safety Valves Model 1400 are engineered for superior pressure management in industrial systems, ensuring operational safety and equipment protection. Designed with precision, these valves automatically release excess pressure to prevent system failures, making them ideal for applications in chemical processing, oil and gas, and manufacturing plants. Their robust construction complies with international safety standards, providing reliability in high-pressure environments.Key features include:Threaded connections for easy installation and maintenanceHigh-grade materials resistant to corrosion and extreme temperaturesAccurate pressure settings with minimal blowdownTested for durability and consistent performance under stressOptimize your safety protocols with the TOSACA Model 1400, a trusted solution for preventing overpressure incidents and enhancing system longevity. Its compact design and efficient operation reduce downtime and maintenance costs, supporting seamless industrial processes.

Materials
| No. | Description | 15 x 25 to 25 x 40 PN16/25 steel | 32 x 50 to 400 x 500 PN16/25 ductile iron | 15 x 25 to 400 x 500 PN40-100 steel |
15 x 25 to 400 x 500 PN 16-100 stainless steel |
|---|---|---|---|---|---|
| 1 | Nozzle | AISI-316L | A351 CF-8 | A351 CF-8 | A351 CF-8 |
| 2 | Body | CS 1.0619 | EN-JS1030 | CS 1.0619 | 1.4409 |
| 3 | Lid | CS 1.0619 | EN-JS1030 | CS 1.0619 | 1.4409 |
| 4 | Cap | A351 CF-8 | A351 CF-8 | A351 CF-8 | A351 CF-8 |
| 5 | Valve | AISI-316L | AISI-316L | AISI-316L | AISI-316L |
| 6 | Driver | AISI-304 | AISI-304 | AISI-304 | AISI-304 |
| 7 | Drive rod | AISI-316L | AISI-316L | AISI-316L | AISI-316L |
| 8 | Button | Steel | Steel | Steel | AISI-303 |
| 9 | Adjustment screw | AISI-303 | AISI-303 | AISI-303 | AISI-303 |
| 10 | Lock nut | AISI-303 | AISI-303 | AISI-303 | AISI-303 |
| 11 | Spring | 1.8159 steel | 1.8159 steel | 1.8159 steel | AISI-302 |
| 12 | Handle | A 351 CF 8 | A 351 CF 8 | A 351 CF 8 | A351 CF-8 |
| 17 | Nut | AISI-304 | AISI-304 | AISI-304 | AISI-304 |
| 18 | Axis | AISI-303 | AISI-303 | AISI-303 | AISI-303 |
| 19 | Bushing | AISI-303 | AISI-303 | AISI-303 | AISI-303 |
| 20 | Sealed. | PTFE | PTFE | PTFE | PTFE |
| 21 | Lid seal | Graphite +SS | Graphite +SS | Graphite+SS | Graphite+SS |
| 22 | Handle seal | Viton | Viton | Viton | Viton |
| 27 | Bellows | AISI-316 Ti | AISI-316 Ti | AISI-316 Ti | AISI-316 Ti |
| 28 | Saddle seals. | Viton / PTFE | Viton / PTFE | Viton / PTFE | Viton / PTFE |
Features
| SPECIFICATION | ||
|---|---|---|
| Joining | Flange EN 1092 pn-16 / 25 / 40 / 63 / 100 | |
| Operating temperature | -196°C to +425°C | |
| Minimum pressure for adjustment | 0.2 barg, (for bellows valves - 2 barg) | |
| Overpressure | 10% for steam, gases and gas vapors / 21% when exposed to fire, 25% for liquids | |
| Blowing | 10% | |
| Adjustment tolerance | ± 3% |
| Dimensions | PN 63 | PN 100 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cross-section (mm) | Area (mm2) | A | B | CW | kg | Cross-section (mm) | Area (mm2) | A | B | CW | kg | |||
| 15 | x | 25 | 9.5 /13 | 71/133 | 95 | 95 | 275 | 11 | 9.5 /13 | 71/133 | 95 | 95 | 275 | 11 |
| 20 | x | 25 | 9.5 /13 | 71/133 | 95 | 95 | 275 | 11 | 9.5 /13 | 71/133 | 95 | 95 | 275 | 11 |
| 25 | x | 50 | 20 | 314 | 140 | 105 | 315 | 25 | 16 | 201 | 140 | 105 | 315 | 25 |
| 32 | x | 50 | 23.8 | 445 | 140 | 105 | 315 | 30 | 20 | 314 | 140 | 105 | 315 | 30 |
| 40 | x | 65 | 26 | 531 | 165 | 124 | 430 | 30 | 23.8 | 445 | 165 | 124 | 430 | 30 |
| 50 | x | 80 | 32 | 804 | 162 | 154 | 400 | 35 | 32 | 804 | 162 | 154 | 400 | 35 |
| 65 | x | 100 | 48 | 1.809 | 140 | 170 | 460 | 66 | 39 | 1.194 | 140 | 170 | 460 | 66 |









