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13
-11
13
T
emperatur
e Regulator
Temperature Regulator
OB-30,30U
OB-31,31U
Direct acting type
Bellows
Soft seat
Pilot operated type
Diaphragm
Heating
Single valve
Cooling
Double valve
Red
handle
Blue
handle
OB-30
OB-31
OB-30U
For heating
For heating
OB-31U
For cooling
For cooling
Features
1. Red handle type is for heating and blue handle type for cooling. It is possible to identify their application at
a glance.
2. Excellent durability and high sealability ensured by valve part of stainless steel and fluororesin.
3. Single valve and balance bellows structure offers stable temperature control without being affected by inlet
pressure fluctuations.
4. Easy changeable thermal specification by easy attachment and detachment of the body and thermal bulb.
5. Wide temperature adjusting range, applicable to wide variety of applications.
6. The thermal bulb is usable for heating and cooling, which is common for all sizes (15 to 25A). It is possible
to select models considering the temperature adjusting range only.
7. Easy setting of the initial temperature by handle operation.
Specifications
· Body
Model
OB-30
OB-30U
OB-31
OB-31U
Purpose
For heating
For cooling
Application
Steam, Hot water
Cold water, Refrigerant
Maximum pressure
1.0 MPa 1.7 MPa for hot water
1.7 MPa
Max. differential pressure
1.0 MPa
Valve seat leakage
0.05% or less of rated flow rate
Max. temperature
185°C
Material
Body
Bronze
Valve disc
PTFE
Valve seat
Stainless steel
Connection
JIS Rc screwed
JIS Rc screwed (union joint)
JIS Rc Screwed
JIS Rc screwed (union joint)
