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Density - Viscosity
Flame and Gas Detection
Flow
Gas Analysis
Level Measurement
Liquid Analysis
Pressure Measurement
Tank Gauging
Temperature Measurement
Acoustic and Discrete
Corrosion & Erosion Monitoring
Industrial Wireless
Hygienic Measurement
Flow Measurement & Blending Systems
Facility & Workforce Safety
Concentration Measurement
Bulk Flow Measurement
Online Moisture Measurement
Digital Indicators and HMI
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Tank Vents and Hatches
Regulators
Nuclear Flow Controls
Isolation and Shut off Valves
Actuators
Bulk Storage and Transport Equipment
Steam Traps, Valves and Level Gauges
Control Valves
Controllers and Instruments
Flame and Detonation Arrestors
Pressure Relief & Safety Valves
Valves Actuators & Regulators
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CTC Vibration Analysis Hardware
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Back
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Air Preparation
Cylinders & Actuators
Solenoid Valves
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Globe & Angle Seat Valves
Accessories
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Essential Asset Monitoring
Real-Time Modeling System
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Cell and Gene Therapy
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Cell and Gene Therapy
Life Sciences
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Operation and Maintenance Excellence
Combined Cycle Power Plant
Back
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Back
Balance of plant
Cooling Tower Vibration Monitoring
Tank Level Control
Water Quality Monitoring
Balance of plant
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Back
Boiler
Boiler Drum Level Indication
Boiler Process Control
Condensate Control
Feedwater Control
Heater Drain Control
Mechanical Condition Monitoring
Pressure Measurement
Sky Vent Silencing
Steam Conditioning
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Boiler
Thermal Power
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Back
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Battery Lifecycle Solutions
Improving Efficiency for Existing Operations
Sustainable Energy
Back
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Back
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Back
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Natural Gas
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Urea
Back
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Vibration Monitoring
Overpressure Protection
Pumps
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High Pressure Letdown
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Heavy Black Liquor Flow
pH and Conductivity
Steam Mass Flow
Drum Level
Temperature Solutions
Steam Header Management
Condensate Flow
Power and Recovery
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Recaust
Green Liquor
Recaust Optimization
Recaust
Back
Bleaching
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pH and Conductivity
Chlorine Dioxide Generator Optimization
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Grade Control & Leach Water Optimization
Soluble Component Analysis
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Products
Valves Actuators & Regulators
Pressure Relief & Safety Valves
Sempell Model SOT High Pressure Steam Safety Valve, Disc Spring
Overview
High pressure safety valve for boiler protection in disc spring design with welding end or flanged connections
Sempell Model SOT High Pressure Steam Safety Valve, Disc Spring
Specs
Size Inlet:
DN 100 – DN 600
NPS 4 – NPS24
Temperature Range:
Up to +700 °C / +1300 °F
Set pressure:
10 bar – 450 bar
Orifice diameter
66 mm – 438 mm
Design:
Open bonnet
Balanced piston
Disc spring type
pneumatically assisted
Body material:
1.0460/SA105
1.0619/SA216 WCB
1.7335/SA182 F12
1.7357/SA217 WC6
1.7380/SA18 F22
1.7379/SA217 WC9
1.4903/SA182 F91
1.4901/SA182 F92
Accessories:
Position indicator
Resources
All
Brochures
Data Sheets & Bulletins
PDF
Size: 4.3mb
Brochures
Product Brochure: Pressure Relief Valves Product Overview - Europe, Anderson Greenwood, Crosby, Marston, Sempell-EN
PDF
Size: 4.9mb
Brochures
Product Brochure: Pressure Relief Valves Product Overview Brochure, Anderson Greenwood, Crosby, Sempell-EN
PDF
Size: 3.8mb
Brochures
Product Brochure: Sempell Overview Brochure, Sempell-EN
PDF
Size: 560kb
Data Sheets & Bulletins
Data Sheets: HIGH PRESSURE STEAM SAFETY VALVE, DISC SPRING - MODEL SOT, Sempell-EN
Features
High tightness up to set pressure due to supplementary load
Smooth operation (no forces by popping)
Disc spring allows higher forces compared to helical spring. This results in high set pressures even for high capacities.
Mechanical lift stop ensures functional stability
Locking for hydrostatic test without additional parts
High allowable back pressure
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