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Temperature Regulator – Annex

Completely discharge the internal pressure from the valves before disassembly.

emperatur

e Regulator

CAUTION

Please refer to the manual attached to the product for procedures for installation and operation.

Disassembly and troubleshooting

OB-2000 series

Make sure to close the stop valves installed at before and after the product, and completely discharge the

pressure and condensate inside the product, prior to disassembly.

· Disassembly of pilot valve

1. Make sure that thermal bulb is not subjected

to temperature higher than the max. allowable

temperature.

2. Slightly loosen the lock nut, rotate the adjusting

screw counterclockwise to completely release the

spring force (no compression).

3. Detach the bolts of the spring chamber and

dismount the spring chamber and spring, etc.

4. Detach the bellows plate and take out the seal

bellows.

5. Loosen the ring and take out the bellows. Be

careful not to lose the bellows follower.

6. Detach the guide and take out the pilot valve.

7. Detach the bellows plate from the guide, and then

take out the seal bellows.

· Disassembly of main body – main valve

1. Detach the bolts of the cover, separate the cover

from the body, and take out the main valve spring

and main valve.

2. The dedicated tool is required to dismount valve

seat.

· Disassembly of main body – diaphragm

1. Detach the pipe C at the tee and at the elbow.

2. Detach the bolts of the diaphragm cases.

Dismount the diaphragm case, main diaphragm,

retainer, and main spindle.

OB-2000 Pilot valve

Bolt

Pilot body

Adjusting screw

Lock nut

Bolt
Washer
Spring chamber

Spring plate

Spring

Spring plate
Spring plate follower

Bellows plate

Seal bellows

Gasket

Bushing *1

Thermal bulb

Washer of packing

Pilot valve seat

Pilot valve

Spindle

Gasket

Guide

Gasket
Seal bellows
Bellows guide

Bellows plate

Bellows follower

Bellows
Ring

Flexible tube
Capillary tube

Name plate

Rivet

Cover

Gasket

Main valve spring

Stud bolt

Top diaphragm

case
Nut

E-ring
Retainer

Bottom diaphragm

case

Bolt

Main

diaphragm

Main spindle

Plug

Main valve seat
Gasket

Body

Plug

Joint B

Guide

Main valve

The parts shown in the rectangle boxes

are available as consumable parts.

Some of structures differ according to product size. Please contact us for details.
*1 Bushing is not required when using thermal well (stainless-steel made).

OB-2000 Main valve

Содержание OB-30

Страница 1: ...13 1 Temperature Regulator 13...

Страница 2: ...tor Step 1 Selection Please refer to the ID chart to select the right products depending on the intended uses Details are on the product page Step 2 Sizing Please check the required Cv value from size...

Страница 3: ...emperature Controls cooling fluid in order to maintain set temperature Direct acting type Pilot type Direct acting type Internal pressure bellows External pressure bellows Use steam or hot water in or...

Страница 4: ...cause the temperature is sensed by sealing gas It is especially recommended to the food processing industry Stainless steel and PTFE materials are used for the valve disc which ensures high durability...

Страница 5: ...akage designed single seat valve 13 11 OB 31U JIS Rc union joint 15 25A 13 11 OB 2000 External pressure bellows Steam FCD450 2 0 1 0 for JIS10K 220 C JIS Rc 15 50A Heating Pilot type Large flow capaci...

Страница 6: ...ng 13 23 OB 4 Internal pressure bellows Cold water Refrigerant FC200 0 2 0 7 180 C JIS 10KFF 15 150A Cooling 13 26 OB 4G External pressure bellows 15 125A Low temperature cooling 13 26 OB 5 Internal p...

Страница 7: ...lue of each nominal size Cv value table Nominal size Model 15A 20A 25A 32A 40A 50A 65A 80A 100A 125A 150A OB 30 31 0 8 1 1 2 OB 2000 5 0 7 2 10 9 14 3 18 8 32 54 70 108 OB 1 1G 2 2 4 7 10 OB 2 2G 2 2...

Страница 8: ...bulb can be mounted in any posture make sure that more than 3 4 of its total length is in direct contact with the fluid to be heated or cooled 2 Screw on bushing first then use washer of packing to se...

Страница 9: ...ter from the piping through the bypass line at the starting before operating the temperature regulator Installation of thermal bulb 1 Although the thermal bulb can be mounted in any posture make sure...

Страница 10: ...For air Capillary tube Temperature regulator Thermal bulb for air Thermometer Pressure gauge Pressure gauge Steam Strainer Bypass valve Heater Trap Strainer Steam Storage tank Capillary tube Thermomet...

Страница 11: ...y 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 us...

Страница 12: ...fer to P 36 Available with capillary of 3 or 5 meter R 1 2 R 1 2 OB 30 OB 31U Temperature Adjusting Range Temperature adjusting range C Withstand temperature C 0 35 75 25 70 110 40 100 140 60 130 170...

Страница 13: ...low rate of 20 kg h Since this intersection point b lies between nominal sizes 15A and 20A select the larger one 20A Chart of the flow rate is a reference value OB 31 31U Nominal Size Selection Chart...

Страница 14: ...ature adjusting range 8 183 C Valve seat leakage 0 01 or less of rated flow rate Material Body Ductile cast Iron FCD450 Main valve valve seat Stainless steel Diaphragm Stainless steel Pilot valve Stai...

Страница 15: ...230 216 319 276 60 189 242 32 7 OB 2000 Flanged type JIS 20KRF JIS 10KFF Nominal size L H1 H A E F G Weight 15A 146 142 170 244 200 45 169 222 15 6 15 4 20A 146 142 170 244 200 45 169 222 16 1 15 9 25...

Страница 16: ...emperature regulator whose inlet pressure P1 outlet pressure P2 and steam flow rate are 0 5 MPa 0 4 MPa and 400 kg h respectively first find intersection point a of the inlet pressure of 0 5 MPa and t...

Страница 17: ...0 MPa Max temperature 180 C Temperature adjusting range For liquid 40 120 C 15 100 C For air 40 120 C 15 100 C Ambient temperature Set temperature 10 C or less Set temperature 30 C or less Material Bo...

Страница 18: ...emperature adjusting range C Withstand temperature C For liquid For air 15 35 15 35 50 20 40 20 40 50 35 55 35 55 70 40 60 40 60 90 50 70 50 70 100 60 80 60 80 110 70 90 70 90 120 80 100 80 100 130 Th...

Страница 19: ...a temperature regulator whose inlet pressure P1 outlet pressure P2 and steam flow rate are 0 3 MPa 0 25 MPa and 60 kg h respectively first find intersection point a of the inlet pressure of 0 3 MPa an...

Страница 20: ...100 C For air 40 120 C 15 100 C Ambient temperature Set temperature 10 C or less Set temperature 30 C or less Material Body Cast iron Valve valve seat Phosphor bronze stainless steel Valve spindle St...

Страница 21: ...2 220 980 125 The OB 2G comes in nominal size up to 125A mm Temperature Adjusting Range OB 2 Temperature adjusting C Withstand temperature C For liquid For air 40 60 40 60 70 50 70 50 70 80 60 80 60 8...

Страница 22: ...a temperature regulator whose inlet pressure P1 outlet pressure P2 and steam flow rate are 0 3 MPa 0 25 MPa and 60 kg h respectively first find intersection point a of the inlet pressure of 0 3 MPa an...

Страница 23: ...fluid Max pressure Body 0 7 MPa Thermal valve 1 0 MPa Maximum temperature 180 C Temperature adjusting range For liquid 40 120 C 15 100 C For air 40 120 C 15 100 C Ambient temperature Set temp 10 C or...

Страница 24: ...3G Temperature adjusting C Withstand temperature C For liquid For air 15 35 15 35 50 20 40 20 40 50 35 55 35 55 70 40 60 40 60 90 50 70 50 70 100 60 80 60 80 110 70 90 70 90 120 80 100 80 100 130 The...

Страница 25: ...5 MPa and flow rate is 9 m3 h first find the intersection point a with the differential pressure P 0 15 MPa 0 3 MPa 0 15 MPa before and after valve and the flow rate 9 m3 h Since this intersection poi...

Страница 26: ...alve 1 0 MPa Maximum temperature 180 C Temperature adjusting range For liquid 40 120 C 15 100 C For air 40 120 C 15 100 C Ambient temperature Set temp 10 C or less Set temp 30 C or less Material Body...

Страница 27: ...0 20 40 50 35 55 35 55 70 40 60 40 60 90 50 70 50 70 100 60 80 60 80 110 70 90 70 90 120 80 100 80 100 130 The term Withstand temperature means the temperature from pressure resistance of the bellows...

Страница 28: ...e chart When inlet pressure is 0 3 MPa outlet pressure is 0 15 MPa and flow rate is 9 m3 h first find the intersection point a with the differential pressure P 0 15 MPa 0 3 MPa 0 15 MPa before and aft...

Страница 29: ...Ambient temperature Set temp 10 C or less Material Body Cast bronze Valve Stainless steel Valve seat Stainless steel Valve spindle Stainless steel Bellows Phosphor bronze Thermal valve For liquid Stai...

Страница 30: ...or liquid Nominal size d L H Weight 15A Rc 1 2 148 360 6 20A Rc 3 4 148 360 6 25A Rc 1 160 360 7 How to use the chart When inlet pressure P1 is 0 4 MPa outlet pressure P2 is 0 3 MPa and flow rate is 8...

Страница 31: ...10 C or less Material Body Cast iron Valve Stainless steel Valve seat Stainless steel Valve spindle Stainless steel Bellows Phosphor bronze Thermal valve For liquid Stainless steel For air Stainless...

Страница 32: ...w rate is 80 kg h first find intersection point a of the inlet pressure 0 4 MPa and the outlet pressure 0 3 MPa Trace down vertically from this intersection point a and find intersection point b with...

Страница 33: ...ries 13 34 OB 2000 Series 13 38 OB 1 to OB 6 Precautions for installation 13 42 Piping example 13 42 Adjustment procedure 13 43 Disassembly and disposal 13 44 Troubleshooting 13 45 Tolerance of set te...

Страница 34: ...e inside the product and piping and close the stop valves installed at before and after the product 7 Before leading fluid into the product be sure to remove foreign substances and scale from the pipi...

Страница 35: ...arging be sure to close the bypass stop valve 2 Turn the handle and move the indicator to the desired temperature position on the scale To raise the temperature turn the handle clockwise to direction...

Страница 36: ...bellows follower 3 Loosen the bolt nominal size 6 and detach the spring chamber 4 Detach the upper and lower guides Width across flat 17 mm 5 While setting a tool such as a spanner width across flat 6...

Страница 37: ...to the adjustment procedures Remove the foreign substances If there is damage on the parts please contact us to disassemble and replace the parts Readjust according to the adjustment procedures Repla...

Страница 38: ...the product and piping and close the stop valves installed at before and after the product 7 Before leading fluid into the product be sure to remove foreign substances from the piping completely by us...

Страница 39: ...gh time After discharging be sure to close the bypass stop valve Be sure that fluid temperature does not exceed the max temperature while blowing 2 Turn the adjustment screw and move the indicator to...

Страница 40: ...ake out the seal bellows Disassembly of main body main valve 1 Detach the bolts of the cover separate the cover from the body and take out the main valve spring and main valve 2 The dedicated tool is...

Страница 41: ...ide or pilot valve and guide do not move smoothly Leakage from the gasket Retighten or replace the gasket Seal bellows is damaged Replace the seal bellows Special specifications Temperature regulator...

Страница 42: ...ainers and a by pass line See Fig 1 4 The heating cooling fluid pressure should be reduced with a pressure reducing valve if it exceeds the maximum pressure 5 Do not apply excessive load torque or vib...

Страница 43: ...ine Upward Downward WRONG WRONG OK OK OK Adjustment procedures Temperature regulator Incorrect adjustment may cause hunting scale problems or water hammer and may heavily damage the main parts of the...

Страница 44: ...ssion 3 Detach the bolts of bellows cover and dismount the bellows Caution Do not apply heat to thermal bulb while the bellows is dismounted For the thermal bulb of lower temperature range the thermal...

Страница 45: ...o outer shocks or excessive heat Thermal bulb and thermometer are installed improperly or in wrong positions Spindle does not move smoothly due to over tightened cap nut Bellows or spindle is deformed...

Страница 46: ...tion Please note that this is not temperature control range Special of thermal bulb Temperature regulator A B Nominal size d R 3 4 R 1 R 1 1 4 20A or larger 25A or larger 32A or larger 19 25 32 15 25A...

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