Schroedahl

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  1. Schroedahl Type SUL Pump Protection Valve

    Product Features

    • Automatically modulating bypass function
    • Cast material, carbon steel, stainless steel
    • Single-stage pressure reduction (up to 20 bar)
    • Internal operation (no external energy source required)
    • Easy to install
    • Low maintenance
    • Suitable for all liquids

    Applications

    • Boiler feed water
    • Condensate
    • Chemical processes
    • Extinguishing water

    Nominal Diameter:  DN 25-250 / NPS 1-10

    Pressure Class:  PN 10-63 / Class 150-300

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  2. Schroedahl Type TDL Pump Protection Valves

    Product Features

    • Automatically modulating bypass function
    • Carbon steel or stainless steel
    • Special materials possible (e.g. Super Duplex)
    • Internal operation (no external energy source required)
    • Easy to install
    • Low maintenance
    • Suitable for all liquids

    Applications

    • Boiler feed water
    • Condensate
    • Chemical processes
    • Extinguishing water
    • Snow canons

    Nominal Diameter:  DN 25-500 / NPS 1-20

    Pressure Class:  PN 10-160 / Class 150-900

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  3. Schroedahl Type TDM Pump Protection Valves

    Product Features

    • Automatically modulating bypass function
    • Forged housing material, carbon steel or stainless steel
    • Special materials possible (e.g. Super Duplex)
    • Internal operation (no external energy source required)
    • Easy to install
    • Low maintenance
    • Suitable for all liquids

    Applications

    • Boiler feed water
    • Condensate
    • Chemical processes
    • Extinguishing water
    • Snow canons

    Nominal Diameter:  DN 25-300 / NPS 1-12

    Pressure Class:  PN 63-400 / Class 150-2500

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  4. Schroedahl Type MRK Pump Protection Valves

    Product Features

    • Automatically modulating bypass function
    • Forged housing material, carbon steel or stainless steel
    • Special materials possible (e.g. Super Duplex)
    • Internal operation (no external energy source required)
    • Easy to install
    • Low maintenance
    • Suitable for all liquids

    Applications

    • Boiler feed water
    • Condensate
    • Pumps in fossil fuel plants
    • Chemical processes
    • Offshore applications (seawater injection)

    Nominal Diameter:  DN 80-300 / NPS 3-12

    Pressure Class:  PN 250-640 / Class 1500-4500

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  5. Schroedahl Type BPV Back Pressure Regulator

    Product Features

    • Prevents evaporation and cavitation and ensures smooth operation
    • Forged housing material, carbon steel or stainless steel
    • Special material possible
    • Internal operation (no external energy source required)
    • Easy to install
    • Low maintenance

    Application

    • Maintaining the pressure in the fl ow recirculation or return line to the tank

    Nominal Diameter:  DN 25-300 / NPS 1-12

    Pressure Class:  PN 16-400 / Class 150-2500

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  6. Schroedahl Type DR Steam Pressure Reduction Valve

    Product Features

    • Customised, high-quality steam pressure valve with cage-guided perforated bushing
      in a single-stage or multi-stage design
    • For the best handling of diffi cult operating conditions with high grade pressure control
    • Low-noise, multi-stage design of the throttle body (perforated bushing)
    • Screwed cover or self-sealing design

    Applications

    • Reduction of steam pressure in energy and process engineering for controlling high-pressure

    Nominal Diameter:  DN 25-300 / NPS 1-12

    Pressure Class:  PN 16-400 / Class 150-2500

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  7. Schroedahl Type DKV Desuperheater to Control the Temperature of Superheated Steam or Gas

    Product Features

    • The spray water cooler (lance design) works with controlled nozzle technology for extremely effective steam cooling
    • Spray head with integrated high-performance nozzles.
    • Selectable control characteristics for precise temperature control
    • A large water vapour pressure difference Delta p is permitted
    • Excellent pressure atomization
    • Tight shut-off, no leakage in closed position
    • High control accuracy over the entire control range
    • Tightly closing metallic seat. No leakage in closed position and thus no emptying of the cooling water lines possible.
    • Contains the pressure injection nozzle, no additional control valves required
    • High operational reliability through the use of simple components, minimal wear and tear
    • Excellent control accuracy over the entire control range

    Applications

    • For steam cooling in power plant applications and for general gas cooling applications with
      water injection

    Nominal Diameter: DN 150-1200 / NPS 6-24

    Pressure Class:  PN 15-250 / Class 150-1500

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  8. Schroedahl Type DKM Small Desuperheater to Control the Temperature of Superheated Steam or Gas

    Product Features

    • Excellent for small mass fl ows
    • The injection cooler has a reduced spray head especially for small pipelines and additionally uses a multi-level control system
    • Spray head with integrated high-performance nozzles. Selectable control characteristics for precise temperature control
    • Cascade trim design
    • High control accuracy over the entire control range
    • Tightly closing metallic seat. No leakage in closed position and thus no emptying of the cooling water lines possible.
    • No additional control valves required
    • High operational reliability through the use of simple components, minimal wear and tear

    Applications

    • For small boiler and process applications and for the food and beverage industry
    • Suitable for small piping applications

    Nominal Diameter: DN 50–400 / NPS 2-16

    Pressure Class:  PN 16-450 / Class 150-2500

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  9. Schroedahl Type DKH High-Pressure / High-Temperature Steam Cooler for Extreme Conditions

    Product Features

    • Special design for higher pressures and higher temperatures
    • The DKH injection cooler works like the DKV type, with controlled nozzle technology (pressure atomization via controlled nozzle technology)
    • Spray head with integrated high-performance nozzles and excellent atomization
    • No additional control valve required
    • Selectable control characteristics for precise temperature control
    • Tightly closing metallic seat
    • Large permissible water vapor pressure difference delta p up to 100 bar / 1450 PSI
    • High control accuracy over the entire control range
    • High operational reliability by using simple components, minimal wear and tear
    • Excellent control accuracy over the entire control range
    • Special materials available

    Applications

    • For the special demands place on temperature control in power plants and in the process industry

    Nominal Diameter: DN 150-1200 / NPS 6-48

    Pressure Class: PN 250-400 / Class 150-2500

     

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  10. Schroedahl Type DKT Steam-Atomizing Desuperheater

    Product Features

    • Suitable for difficult operating conditions, high quality temperature control and avoidance of temperature shocks (valve and piping)
    • Allows cooling operation when all other systems typically fail
    • For optimum temperature control close to saturation with a control ratio of up to 100:1
    • Ultimate cooler for low-speed steam cooling applications, large bandwidth and small distance/separation to saturation
    • The additional cooling water and atomizing steam control valve must be considered in the planning

    Applications

    • For low speed, highly adjustable desuperheater applications and low saturation separation.

    Nominal diameter: DN 150-800 / NPS 6-32

    Pressure Class: PN 25-250 / Class 150-1500

     

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