3-way valves

Depending on version, 3-way valves have three flanged or threaded couplings via which the volume flows enter and/or exit. They are used as mixing or diverting valves. The flow quantity is usually controlled by means of an electric, pneumatic, or electro-pneumatic actuator.

With a three-way mixing valve (2 inlets and 1 outlet), media at two different temperatures flow into the valve, where they are mixed before exiting via the third port.

With a diverter valve (1 inlet and 2 outlets) the incoming volume flow is usually distributed to the two outlet ports.

3-way valves from Baelz are suited to a wide range of applications. They can be used for water, hot water or thermal oil and stand out due to their superior versatile design.

Control valve baelz 335

Control valve with threaded connections for heating, ventilation and air conditioning systems.
 

Fluid Nominal pressure Nominal diameter Body material Temperature range
water / hot water PN 16 - 25 G 1/2 - 1 1/2 red bronze (CC491K) up to 150°C

Operating instructions

Data sheets

Drawings

Universal control valve baelz 342-B

Universal control valve for industrial applications. Angle way Kvso = 2% (class I).
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

water / hot water

 PN 16 - 25 DN 15 - 125 spheroid ductile iron (5.3103)

-10°C to 240°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

Control valve baelz 347

Universal control valve for liquids and gaseous media in industrial applications. Several plug types available, depending on the control task. In the EMF version: balanced valve, the forces on the valve plug are compensated by a balancing surface, so a less powerful actuator is sufficient. Straight path and corner path Kvs value = 0.004% (better than leakage class IV).

Nominal pressure PN 16/25/40

TypeNominal diameterBody materialTemperature range
B/BBDN 15-300Spheroid ductile iron 5.3103 (only PN 16/25)-10 °C to 240 °C
B-EMF/BB-EMFDN 15-300Spheroid ductile iron 5.3103 or cast steel 1.0619-10 °C to 240 °C
VA-BDN 32-125Stainless steel 1.4581-10 °C to 240 °C
VA-B-EMFDN 32-125Stainless steel 1.4581-10 °C to 240 °C

Operating instructions

Data sheets

Drawings

Control valve baelz 347 with cooling tube

Universal control valve with cooling tube for liquids and gaseous media in industrial applications. Several plug types available, depending on the control task. The cooling tube allows it to be used at higher temperatures. Valves with cooling tube and stainless steel bellows are suitable for use with thermal oil. In the EMF version: balanced valve, the forces on the valve plug are compensated by a balancing surface, so a less powerful actuator is sufficient. Straight path and corner path Kvs value = 0.004% (better than leakage class IV).

Nominal pressure PN 16/25/40

TypeNominal diameterBody materialTemperature rangeCooling tube
BK/BBKDN 15-300Spheroid ductile iron 5.3103 or cast steel 1.0619-10 °C to 350 °C*Cooling tube
BK-SS/BBK-SSDN 15-300Spheroid ductile iron 5.3103 or cast steel 1.0619-10 °C to 350 °C*Cooling tube and bellows
BK-EMF/BBK-EMFDN 15-300Spheroid ductile iron 5.3103 or cast steel 1.0619-10 °C to 315 °CCooling tube
VA-BKDN 32-125Stainless steel 1.4581-10 °C to 350 °C*Cooling tube
VA-BK-SSDN 32-125Stainless steel 1.4581-10 °C to 350 °C*Cooling tube and bellows
VA-BK-EMFDN 32-125Stainless steel 1.4581-10 °C to 315 °CCooling tube

*higher temperatures possible on request

Operating instructions

Declarations of conformity / Manufacturer's declarations

Data sheets

Drawings

Stainless steel control valve baelz 353

Stainless steel control valve in DN 15 to DN 25, suitable for industrial applications and demanding operating conditions.
 

Fluid Nominal pressure Nominal diameter Body material Temperature range

water / hot water,

gases

 PN 16 - 40 DN 15 - 25

stainless steel (1.4571)

-10°C to 240°C
(without cooling tube)

-10°C to 350°C
(with cooling tube)

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 2-way valves