Schroedahl

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  1. 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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  2. 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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  3. 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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  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 AK High Pressure Control Valve with Axial Throttle Body

    Product Features

    • Cavitation-free, low-noise, multi-stage throttle body in a cascade design with axial flow direction under high pressure
    • Identical procedural characteristic or according to valve sizing
    • Screwed-on housing cover
    • Designed for extreme high pressure control and to avoid cavitation damage and to be suitable for a wide range of applications
    • The multi stage throttle body is designed as a cascade with an axial fl ow direction permits an extremely wide application range of up to 50:1 at constant high pressure loss without cavitation problems

    Applications

    • High-pressure control, high-pressure injection for power plant and process technology applications

    Nominal Diameter: DN 15-100 / NPS 1/2-4

    Pressure Class: PN 16-640 / Class 150-2500

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  6. Schroedahl Type AC High-Pressure Control Valve with Multi-Stage Axial Flow Limitation

    Product Features

    • Cavitation-free, multi-stage vortex plug with an axial flow direction under high pressure
    • Linear characteristic curve or according to valve design
    • Screwed-on housing cover
    • Wear free
    • Designed for extreme high pressure control and to avoid cavitation damage
    • The multi-stage axial plug with vortex system operates in the axial flow direction, is extremely robust and special material combinations enable it to also be used with complex water mixtures and other media

    Applications

    • High-pressure control valve for the power plant and process industry as well as for offshore applications
    • Also suitable as pump protection for minimum flow control
    • Suitable for the control of the high pressure injection

    Nominal Diameter: DN 25–400 / NPS 1-16

    Pressure Class:  PN 100–640 / Class 600–2500

     

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  7. 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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  8. 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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  9. 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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  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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