tozen PRV-CPR Instruction Manual Download Page 9

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Sizes Selection Diagram Sizes Selection Diagram & Pressure Reducing Valve (When Pilot
Valve Fully Open) Flow Chart

(Note) Max.3m/s flow speed.

Sizes selection diagram

TRV-P (Pilot Valve fully

Open) Performance-Flow Chart

Flow rate

Differential pressure

Flow velocity

Summary of Contents for PRV-CPR

Page 1: ...20201203 PRV CPR Pressure Reducing valve Instruction Manual...

Page 2: ...on Manual 5 1 Precaution 5 2 Procedure Maintenance Manual Cause Counter Measure Of Malfunction Sizes Selection Diagram Sizes Selection Diagram Pressure Reducing Valve When Pilot Valve Fully Open Flow...

Page 3: ...of the diaphragmin the pilot valvepressure increase the discassembly of the pilot valve will rise and the pilot valve will closed Thepilotvalveclosed theupperpartofthediaphragminthePRVbodypressurewil...

Page 4: ...y the surrounding and there is a risk to get hurt Caution Remove the foreign matters in the pipe line before install the valve The valve can t have the original performance and may damage if foreign p...

Page 5: ...on failure Toavoidpipefreezing drainthepipewaterandthermalinsulationthepipe By freezing may damage the valve Pleasesecuretheinstallationspace referto4 3InstallationSpace When doing maintenance and ins...

Page 6: ...terflow makesureallthepipeworkbeenproperinstalled If the water spouting off the pipe line it may dirty the surrounding and there is a risk to get hurt Caution Remove the foreign particles in the pipe...

Page 7: ...er out from the valve body outlet side pressure become zero only can proceed If the water spouting off the pipe line it may dirty the surrounding and there is a risk to get hurt Caution To maintain th...

Page 8: ...damaged Exchange the part Strainer clogging Clean the strainer mesh Outlet side pressure does not rise The valve body s stem can t operate smoothly Stem seat guide bush Use cloth file to filing the st...

Page 9: ...s Selection Diagram Pressure Reducing Valve When Pilot Valve Fully Open Flow Chart Note Max 3m s flow speed Sizes selection diagram TRV P Pilot Valve fully Open Performance Flow Chart Flow rate Differ...