Valve technology

Baelz thermal oil valves have a broad range of industrial applications

Our thermal oil valves are suitable for special applications in temperature ranges from -10°C to 400°C. The nominal diameters range from DN 15 to DN 300.
 

Advantages at a glance
  • Easy replacement of defective components
  • Very low leakage
  • High variability/flexibility
  • Low-maintenance
  • High operational reliability
  • Unique design

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Areas of application

Chemical industry

 

  • Polymerization and polycondensation systems
  • Temperature control of kneaders, dryers, nutsche filters, reactors
  • Concentration, distillation, regeneration and smelting plant 

Plastic industry

  • Temperature control of flat film calendars and injection molding tooling
  • Heating of coating machines and lost core baths

 

Construction materials, bitumen, tar, lubricant and oil industry

  • Heating of autoclaves, stirring tanks, boiling tanks, storage and mixing tanks, silos, drying chambers
  • Production of road and ground surfacing materials

 

Machine construction and metal processing industry

  • Heating of oil baths, acid and pickling baths
  • Temperature control of paint spraying and drying systems

 

Shipping industry, maritime

  • Heating of bitumen and fuel oil tanks, air-conditioners, cargo
  • Heat recovery from main motors and gas turbines

 

Wood and paper industry

  • Heating of presses, drying and coating systems, melting pots, laminating rollers
  • Drying installations

 

Hospitals and laundries

  • Indirect steam generation using thermal oil for heating of washing facilities
  • Heating of distillation systems

 

Printing industry

  • Heating of Flexo printing machines
  • Thermal (or regenerative) post-combustion of production exhaust with heat recovery

 

Textile industry

  • Heating of calanders, stenters, drying and cleaning facilities, mangles
  • Indirect steam generation

 

Food and luxury food industry

  • Heating of ovens, deep fat fryers, cooking vessels through indirect steam generation using thermal oil
  • Drying installations
  • Washing and cleaning facilities

 

Heating networks

  • Biogas preparation and power generation
  • Drying installations
  • Indirect steam generation
  • Hot water generation
  • Heating of halls

 

Overview of valves

baelz 340-BK and baelz 340-BK-SS

2-way control valve in a 3-way housing with cooling tube.
Type baelz 340-BK-SS additionally with stainless steel bellows, for applications using thermal oil.
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

superheated steam,

saturated steam,

water / hot water;

thermal oil

 PN 16 / 40 DN 15 - 300

spheroid ductile iron (5.3103) /

cast steel (1.0619)

-10°C to 350°C


New optimized series baelz 340-2-BK and baelz 340-2-BK-SS

Data sheets

Drawings

baelz 342-BK and baelz 342-BK-SS

Universal control valve with cooling tube for industrial applications.
Type baelz 342-BK-SS additionally with stainless steel bellows, for applications using thermal oil.
Angle way Kvso = 2% (class I).
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

superheated steam,

saturated steam,

water / hot water;

thermal oil

 PN 16 / 40 DN 15 - 125

spheroid ductile iron (5.3103) /

cast steel (1.0619)

-10°C to 350°C

 

 


New optimized series baelz 342-2-BK and baelz 342-2-BK-SS

Data sheets

Drawings

baelz 347-BK and baelz 347-BK-SS

Universal control valve with cooling tube for industrial applications.
Type baelz 347-BK-SS additionally with stainless steel bellows, for applications using thermal oil.
Straight way and angle way Kvso = 0,004% (better than class IV).
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

superheated steam,

saturated steam,

water / hot water;

thermal oil

 PN 16 / 40 DN 15 - 300

spheroid ductile iron (5.3103) /

cast steel (1.0619)

-10°C to 350°C

 

 


New optimized series baelz 347-2-BK and baelz 347-2-BK-SS

Data sheets

Drawings

baelz 356-K-SS

Stainless steel control valve with cooling tube and stainless steel bellows for applications using thermal oil. DN 32 to DN 65 also available in cast steel.
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

thermal oil

 PN 16 - 40 DN 15 - 65

stainless steel
(1.4571) /

cast steel (1.0619)

-10°C to 350°C

baelz 365

Flanged control valve with pressure ratings according to American ANSI/ASME standards.
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

hot water / cold water,

glycol (up to 50%),

steam,

thermal oil

ANSI 300

DN 15 - 250
(1/2" - 10")

cast steel (SA216WCB)

-29°C to 343°C
(-20°F to 650°F)

baelz 367

Flanged control valve with pressure ratings according to American ANSI/ASME standards.
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

hot water / cold water,

glycol (up to 50%),

steam,

thermal oil

ANSI 300

DN 15 - 250
(1/2" - 10")

cast steel (SA216WCB)

-29°C to 343°C
(-20°F to 650°F)

to the other valves