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AsahiAV V182, Инструкция по установке, эксплуатации и обслуживанию

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  Installation, Operation and Maintenance Manual 

【

H-V063-E-9

】

  Self Control Valves (Pressure Reducing Type / Pressure Relief Type / Pressure Retaining Type)

 

6

6. Working pressure vs. temperature

 

- Pressure Reducing Type (V182, V82), Pressure Relief Type (V185), Pressure Retaining Type (V186) 

 

 
 

 

Содержание V182

Страница 1: ... parts 3 5 Product functions and specifications 5 6 Working pressure vs temperature 6 7 Valve flow characteristic 7 Pressure reducing type 7 Pressure relief retaining type 8 8 Installation procedure 9 Flanged end 10 Threaded end 11 Socket end 12 9 Adjustment procedure for working pressure 13 10 Disassembling method for replacing parts 14 11 Inspection items 15 12 Troubleshooting 16 13 Handling of ...

Страница 2: ...m of specifications or other documented approval The related technical documents operation manuals and other documentation prescribe precautions on selecting constructing installing operating maintaining and servicing our products For details consult with our nearest distributor or agent Our product warranty extends for one and a half years after the product is shipped from our factory or one year...

Страница 3: ...o CHEMICAL RESISTANCE ON ASAHI AV VALVE Some chemicals may damage incompatible valve materials Do not use the valve in conditions where the fluid may have crystallized The valve will not operate properly Keep the valve out of direct sunlight water and dust Use cover to shield the valve The valve will not operate properly Perform periodic maintenance Leakage may develop due to temperature changes o...

Страница 4: ...3 Part for self control valve 4 Used for flange type No Description No Description No Description No Description a1 Body Bottom g Compressor 1 n1 O Ring A 4 Union nut a2 Body Top h Compression spring n2 O Ring B 5 O Ring C b Housing i Lock nut o Bolt Nut Washer 6 Stop ring 4 c Diaphragm 1 j Adjusting screw p Spring support plate 2 7 O Ring D d Piston k Bolt Washer 1 q Pressure gauge e Piston base ...

Страница 5: ...5 O Ring C c Diaphragm i Lock nut 2 PJ Body 1 6 Stop ring 2 f Spring plate j Adjusting screw 3 End connector 7 O Ring D 1 Part for self control valve 2 Used for flange type Pressure Retaining Type V186 15mm 50mm 2 No Description No Description No Description No Description a Body g Compressor l Cap 4 Union nut b Housing h Compression spring o Bolt Nut Washer 5 O Ring C c Diaphragm i Lock nut 2 PJ ...

Страница 6: ...ton lifts against the internal spring Consequently the valve opens and flow will pass through the perpendicular leg until the inlet pressure begins to drop When the inlet pressure drops below the set pressure the spring pushes against the valve piston until the valve closes and resumes normal operation The pressure retaining type V186 serves to keep the upstream system pressure constant If the inl...

Страница 7: ...nance Manual H V063 E 9 Self Control Valves Pressure Reducing Type Pressure Relief Type Pressure Retaining Type 6 6 Working pressure vs temperature Pressure Reducing Type V182 V82 Pressure Relief Type V185 Pressure Retaining Type V186 ...

Страница 8: ...ssure at a flow rate of 0 L h PE Pmin Max pressure reduction value The set pressure is set at PE If the flow rate is increased to Q the outlet pressure will decrease to PO PO line Opening pressure characteristic Flow rate increasing ＰＳ line Closing pressure characteristic Flow rate decreasing Hysteresis The flow rate is affected by the influence of the spring piston and diaphragm in the valve The ...

Страница 9: ...low rate PＥ Set pressure at a flow rate of 0 L h PＡ Working pressure PＳ Closing pressure At a flow rate of 0 L h The set pressure is adjusted to PE at a flow rate of 0 l h If the flow rate is increased to Q the outlet pressure will increase to PA ＰO line The change of inlet pressure Flow rate increasing ＰＳ line The change of inlet pressure Flow rate decreasing The outlet pressure is increased and ...

Страница 10: ...ipe wrench The valve can be damaged Piping with care in the flow direction Align the flow direction with the arrow of the label The strainer should be installed in the upper stream line of the valve in order to avoid the malfunction possibility caused by clogging of the valve by foreign matters When installing pipes and valves ensure that they are not subjected to tension compression bending impac...

Страница 11: ...minal size Axial misalignment Parallelism a b 15 32mm 1 1 0mm 0 04 0 5mm 0 02 40 50mm 1 2 1 0mm 0 04 0 8mm 0 03 3 Tighten the bolts and nuts gradually with a torque wrench to the specified torque level in a diagonal manner 4 Tighten it more than 2 turns clockwise with specified torque Do not tighten above the specified torque value The valve can be damaged or leaks Specified torque value Unit N m ...

Страница 12: ...roduct warranty shall not apply in case of said use even when said use is unavoidable Sealing tape Strap wrench Spanner wrench Procedure 1 Wind a sealing tape around the external thread of joint leaving the end about 3mm free 2 Loosen the union nut with a strap wrench 3 Remove the union nut and end connector from the body 4 Tighten the external thread of the joint and the end connector hardly with...

Страница 13: ...move the end connector before carrying out the work Failure to so may cause external leakage Use the appropriate ASAHI AV cement Conduct a water test at least 24 hours after joining the pipes with an adhesive ASAHI AV cement Strap wrench Procedure 1 Loosen the union nut with a strap wrench 2 Remove the union nut and end connector from the body 3 Lead the union nut through the pipe 4 Make sure the ...

Страница 14: ...ore handle it within a range that it will not come off Spanner wrench Allen wrench Procedure 1 Detach the cap l from the top of the valve 2 Loosen the lock nut i counterclockwise with a spanner wrench 3 Turn the adjusting screw j with an Allen wrench Clock wise The working pressure is increased Counterclockwise The working pressure is decreased 4 Set the adjusting screw j with an Allen wrench and ...

Страница 15: ... requires special jig Optional item according to model and size For details please consult the nearest sales office Safety goggles Protective gloves Spanner wrench Allen wrench Socket wrench special jig Optional item Pressure Reducing Type V182 Disassembly Procedure 1 Remove the cap l from the top of the housing b 2 Loosen the lock nut i counterclockwise with a spanner wrench and the adjusting scr...

Страница 16: ... Pressure Relief Type Pressure Retaining Type V185 V186 Disassembly Procedure 1 Remove the cap l from the top of the housing b 2 Loosen the lock nut i counterclockwise with a spanner wrench and the adjusting screw j counterclockwise with an Allen wrench 3 Remove the covering caps on bolt o and loosen bolt o counterclockwise with an Allen wrench 4 Remove the compression spring h and spring plate f ...

Страница 17: ...ce failed parts in order for the valve to perform properly Refer to below parts list for an explanation of available parts kits Type Parts Name Description Pressure Reducing Type V182 Adjustment Kits Adjusting Screw j Spring Plate f Compression Spring h Spring Support Plate p Piston d and Piston Base e V82 Adjusting Screw j Spring Plate f Compression Spring h Piston d and O ring B n2 V182 Sealing ...

Страница 18: ...essure Reducing Type Pressure Relief Type Pressure Retaining Type Self Control Valves Pressure Reducing Type Pressure Relief Type Pressure Retaining Type 15 50mm 2 Information in this manual is subject to change without notice April 2018 Distributor http www asahi yukizai co jp en ...

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