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EPDT-258b

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4. Nominal Size Selection Chart

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OB-3

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3G (For Water)

How to use chart

When selecting the nominal size of a temperature regulator whose inlet pressure (P1), outlet (P2), and

steam flow rate are 0.3MPa, 0.15MPa, 9 m3/h, respectively, first find intersection point (a) of the

differential pressure = 0.15MPa (0.3MPa-0.15MPa) and the flow rate = 9 m3/h. Since the intersection

point (a) lies between nominal size 32A and 40A, select the larger one, 40A.

Nominal size

: F

P: Differential pressure MPa

(a)

Содержание OB-3

Страница 1: ...ult in minor or moderate injury or may result in only property damage Table of Contents 1 Usage of the Product 1 2 Specifications 1 2 2 1 Specifications 1 2 2 Temperature adjusting range 2 2 3 Tempera...

Страница 2: ...on Heating Cold water Refrigerant Heated Cold and hot water Oil Non dangerous fluid Maximum Pressure Body 15 40A 0 7MPa 1 0MPa 50A 0 5MPa 0 7MPa 65A 0 5MPa 0 7MPa 80A 0 4MPa 0 5MPa 100A 0 4MPa 125A 0...

Страница 3: ...2m 2 3 3 5 2 3 5m 2 5 3 5 4 3 5 5m 4 4 5 If the preset temperature is higher than 100 C add 1 0 C The preset temperature error is the maximum temperature width ranging from the time when the valve cl...

Страница 4: ...erence in bellows structure mm mm Nominal size R Standard 15A 40A 2000 Nominal size d L H H B Weight kg 15A Rc 1 2 148 55 510 160 11 20A Rc 3 4 148 55 510 160 11 25A Rc 1 160 60 520 160 12 32A Rc1 1 4...

Страница 5: ...160 15 20A 130 60 520 160 16 25A 140 70 540 160 18 32A 150 75 550 160 21 40A 160 75 550 160 23 50A 180 110 620 160 29 65A 215 125 650 160 38 80A 260 135 670 160 48 100A 300 160 750 180 58 125A 360 190...

Страница 6: ...t pressure P1 outlet P2 and steam flow rate are 0 3MPa 0 15MPa 9 m3 h respectively first find intersection point a of the differential pressure 0 15MPa 0 3MPa 0 15MPa and the flow rate 9 m3 h Since th...

Страница 7: ...tlet P2 and steam flow rate are 0 3MPa 0 15MPa 9 m3 h respectively first find intersection point a of the differential pressure 0 15MPa 0 3MPa 0 15MPa and the flow rate 9 m3 h Since the intersection p...

Страница 8: ...f there are T marks on the flanges or joint nuts follow the instructions on how to install them Otherwise the temperature cannot be adjusted correctly 10 The bending radius of the capillary tube must...

Страница 9: ...stallation posture does not affect the function even if the installation is made regardless of the T mark position See the diagram below showing an example of thermal bulb insertion Thermal bulb insta...

Страница 10: ...erature than the max allowable temperature of the product 2 Turn the handle and move the indicator to the desired temperature position on the scale To raise the temperature turn the handle countercloc...

Страница 11: ...1 Disassemble and clean or replace 2 Replace the product 3 Reinstall them at points where the circulation is best 5 8 Precautions during maintenance and inspection Warning 1 When using a hot fluid do...

Страница 12: ...EPDT 258b 6 Handling of Protection Pipe Option 6 1 A set of protection pipes 6 2 Insert a gasket into the protection pipe 6 3 Insert a thermal bulb into the protection pipe and screw in a screwing joi...

Страница 13: ...PDT 258b 6 4 Fasten the joint nut with a wrench or spanner 6 5 Inject liquid which is the same as the liquid to be heated from the plug hole on the screwing joint side 6 6 Attach the plug after inject...

Страница 14: ...product Yoshitake supplies the repair parts for 5 years otherwise individually agreed 3 This warranty does not cover the damage due to any of below 1 Valve seat leakage or malfunction caused by forei...