Schroedahl

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

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

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

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

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

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

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

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

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

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