Control valves

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 350°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

For thermal oil applications, please use the types with cooling tube (K) and bellows (SS).

2-way control valve 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.
 

FluidNominal pressureNominal diameterBody materialTemperature range

superheated steam,

saturated steam,

water / hot water;

thermal oil

PN 16 / 40DN 15 - 300

spheroid ductile iron (5.3103) /

cast steel (1.0619)

-10°C to 350°C

(on request up to 450°C, with bellows up to 400°C)

Operating instructions

Declarations of conformity / Manufacturer's declarations

Data sheets

Drawings

Universal control valve 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).
 

FluidNominal pressureNominal diameterBody materialTemperature range

water / hot water;

thermal oil

PN 16 / 40DN 15 - 125

spheroid ductile iron (5.3103) /

cast steel (1.0619)

-10°C to 350°C

(on request up to 450°C, with bellows up to 400°C)

Operating instructions

Declarations of conformity / Manufacturer's declarations

Data sheets

Drawings

Universal control valve 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).
 

FluidNominal pressureNominal diameterBody materialTemperature range

water / hot water;

thermal oil

PN 16 / 40DN 15 - 300

spheroid ductile iron (5.3103) /

cast steel (1.0619)

-10°C to 350°C

(on request up to 450°C, with bellows up to 400°C)

Operating instructions

Declarations of conformity / Manufacturer's declarations

Data sheets

Drawings

Stainless steel control valve baelz 356-VA-K and 356-VA-K-SS

Stainless steel control valve with cooling tube.
Type baelz 356-VA-K-SS additionally with stainless steel bellows, for applications using thermal oil.

FluidNominal pressureNominal diameterBody materialTemperature range

superheated steam,

saturated steam,

water / hot water,

gases

thermal oil

PN 16 / 25 / 40DN 15 - 50stainless steel (1.4571)

-10°C to 350°C

 

ANSI control valve baelz 365, 365-K & 365-K-SS

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

FluidNominal pressureNominal diameterBody materialTemperature range

hot water / cold water,

glycol (up to 50%),

steam,

thermal oil

ANSI 300DN 25 - 150
(1" - 6")		cast steel (SA216WCB)

without cooling tube:
-29°C to 232°C
(-20°F to 450°F)

with cooling tube:
-29°C to 343°C
(-20°F to 650°F)

Operating instructions

Declarations of conformity / Manufacturer's declarations

Data sheets

Drawings

ANSI control valve baelz 367, 367-K & 367-K-SS

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

FluidNominal pressureNominal diameterBody materialTemperature range

hot water / cold water,

glycol (up to 50%),

thermal oil

ANSI 300DN 25 - 150
(1" - 6")		cast steel (SA216WCB)

without cooling tube:
-29°C to 232°C
(-20°F to 450°F)

with cooling tube:
-29°C to 343°C
(-20°F to 650°F)

Operating instructions

Declarations of conformity / Manufacturer's declarations

Data sheets

Drawings

to the other valves