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Temperature Regulator
OB-2,2G
Direct acting type
Pilot operated type
Bellows
Diaphragm
Soft seat
Features
1. No need for adjusting tool due to the attached adjusting
handle, making adjustment easy.
2. Double valve structure offers larger flow rate than single
valve type.
3. Excellent accuracy since special packing is used for spindle
gland packing which affects opening/closing operation of
the valve.
4. The OB-2G ensures distinguished temperature resistance
due to an external pressure type bellows.
Specifications
Model
Heating
Application
Heated
Body
Maximum
pressure
Thermal bulb
Max. temperature
For liquid
Temperature
adjusting range
For air
Ambient temperature
Body
Valve, valve seat
Material
Valve spindle
Bellows
Thermal bulb
Standard capillary length
Connection
* Valve seat leakage: Refer to P. -43.
* If the ambient temperature is higher than the set temperature or less than 40˚C, use the OB-2G (with external pressure
type bellows).
* If using at a pressure higher than 0.5 MPa, with stainless steel trim parts is recommended.
· Available with capillary of up to 5 meter. (Please refer to P. -46 for errors of set temperature).
· Available with Max. temperature inside [ ]. (Valve and valve seat material, and bellow is different from standard type).
· Available with temperature adjusting range of 30˚C. (For OB-2 only).
· Available with thermal well (SUS304 made or with a PTFE cap) for liquid.
Heating
Cooling
Single valve
Double valve
OB-2
40-120°C
40-120°C
Set temperature –10°C or less
www.yoshitake.jp
Steam, Hot water
Cold and hot water, Oil, Non-dangerous fluids
15A-40A: 0.7 MPa 1.0 MPa
50A: 0.5 MPa 0.7 MPa
65A: 0.5 MPa 0.7 MPa
80A: 0.4 MPa 0.5 MPa
100A: 0.4 MPa
125A: 0.2 MPa 0.35MPa for OB-2
150A: 0.2 MPa
1.0 MPa
180°C
Cast iron
Phosphor bronze (stainless steel)
Stainless steel
Phosphor bronze
Stainless steel
15A-80A: 2 m 100A-150A: 3 m
JIS 10K FF flanged
OB-2G
15-100°C
15-100°C
Set temperature +30°C or less
13
-20
13
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