Kitz SGE, Operation Manual

Page 1: ...choosing KITZ products For safe and trouble free function and performance of the product make sure to read and understand all of the items included in this manual before valve mounting and operation Keep this manual in a convenient place and accessible to the valve operating personnel ...

Page 2: ...ation that if not avoided may result in minor or moderate injury and product damage Indicates a careful attention Indicates a prohibited action that must not be carried out Indicates a mandatory action that must be carried out NOTES TO USERS This manual is designed to show an appropriate usage of the products for transportation storage installation operation and maintenance Be sure to read through...

Page 3: ... 3 4 Specifications 4 5 Piping Couplings 4 II Transportation and Storage 1 Precautions 6 2 Transportation 7 3 Storage 7 III Valve Installation 1 Precautions 9 2 Before Installation 10 IV Valve Operation 1 Precautions 12 2 Lever Handle Type 13 3 Gear Type 14 4 Daily Inspection 15 V Periodic Inspection 1 Precautions 17 2 Inspections 18 ...

Page 4: ...Document No KE 2032 01 1 18 I Construction and Design Features ...

Page 5: ...onstruction and the part names are as shown below 1 2 Rotation of the stem by 90 opens or closes the valve 1 3 Designed for use in fully open position fully closed position or half open position 1 4 A center drive mechanism is provided 1 5 Bi directional flow is possible Cavitation may occur if the valve is used with the slightly open position Contact KITZ if the valve is required to be used in th...

Page 6: ...vent corrosion 3 2 A rubber lined disk is installed 3 3 The face to face dimensions comply with MSS SP 67 3 4 The actuator mounting flanges comply with ISO 5211 3 5 The stem is designed to be blow out proof so that the stem does not protrude even the operator is removed 3 6 Double sealing is provided to the stem section to prevent external leakage 3 7 Long neck design for easier installation of 50...

Page 7: ... 1 MPa 300 psi 4 2 Temperature range of service fluid EPDM Seat 20 to 110 Continuous service temperature range 0 to 100 NBR Seat 0 to 70 4 3 Pressure Temperature rating Pressure Temperature Rating Pressure MPa 2 1 SGECE SGEN 20 110 0 Temperature 70 5 Piping Couplings Use conformable couplings with AWWA C606 15 ...

Page 8: ...Document No KE 2032 01 5 18 II Transportation and Storage ...

Page 9: ...mage the product by falling down 3 Donotgiveanyimpacttothevalvebydropping throwingor dragging 4 Do not pile up valves for storage Unstable piling may damage the valves or cause personal injury 5 Donotstorethevalvewiththecartonboxkeptopen Thevalvefunctionmaybeimpairedduetothe intrusionofforeignobjects 6 Do not expose packaged valves to rainwater etc High humidity may deterioratethepackage 7 Store v...

Page 10: ... 2 3 Take care not to damage painted valve surfaces during transportation Repair the damaged surface to prevent corrosion 3 Storage 3 1 Place the packaged valves on the pallet etc for storage Placing packaged valves directly on the ground or concrete floor must be avoided 3 2 Do not store valves in a corrosive environment It may cause corrosion on the threaded areas leading to a malfunction of val...

Page 11: ...Document No KE 2032 01 8 18 III Valve Installation ...

Page 12: ...ay damage the valve 3 Do not install the valve close to the downstream side of an elbow pipe a reducer a flow regulation valve because the flow rate of these devices may quickly change Contact KITZ if such installation is required 4 When installing the valve to the outlet of a pumping system align the operator position as shown below Incorrect orientation may damage the valve due to the differenti...

Page 13: ...ssure test is performed with the valve in the fully closed position the valve may be damaged 2 Before Installation 2 1 Allow sufficient room for operation installation disassembly and subsequent maintenance work with consideration for the valve size and the stem direction 2 2 Take appropriate measures for valves which are required to be installed in a confined space 2 3 Keep a secure footing when ...

Page 14: ...Document No KE 2032 01 11 18 IV Valve Operation ...

Page 15: ...n the gear operator carelessly Positional displacement of the valve closed position may cause seat leakage 4 When using the valve in the slightly open position it may cause cavitation resulting in vibration noise or valve damage Contact KITZ for technical advice 5 Valves equipped with manual operator such as a lever handle or a handwheel must be manually operated Application of an excessive force ...

Page 16: ... below When fully closed or fully open operation is required turn the lever handle with the stop lever gripped until the lever handle contact with the index plate The maximum operating angle of the lever handle from the fully open position to the fully closed position is 90 degrees Make sure that the clutch on the stop lever is properly hooked in the groove on the index plate Clutch Open Close Lev...

Page 17: ...ndwheel clockwise to close or counterclockwise to open the valve Note 1 The gear operator is a device to transfer a large torque to the valve stem by converting the torque from the drive shaft by means of the speed reduction gearing mechanism 2 The handwheel operating torques vary with a number of factors such as the valve opening position valve sizes and working pressures Open Close ...

Page 18: ... engineer Bolted sections looseness Auditory check Retighten the bolts and nuts Abnormal noise Pipes vibration Auditory check Consult a piping engineer Loosening of bolts and nuts Bolted sections Visual check Tactile check Retighten the bolts and nuts Seat leakage Remove foreign objects from the valve Disassemble and inspect the valve Replace the valve seats Valve open closed position Visual check...

Page 19: ...Document No KE 2032 01 16 18 V Periodic Inspection ...

Page 20: ...es Safety measures shall be also taken when storing or disposing of valves used for toxic or explosive fluid service They shall be kept away from unauthorized personnel 3 Keep off the valve lifting area to prevent personal injury when transporting valves 4 Carry out periodic inspections on the valves in operation by referring to the appropriate section in the operation manual 5 Wear protective gea...

Page 21: ...in a major shutdown of the entire plant unit 2 Fluids are highly viscous and may get stuck and built up inside the valve 3 Corrosion and or wear by the fluids are likely to occur 2 6 After maintenance work or inspection of the pipeline facilities where the valve is installed is conducted perform a valve seat leakage test and an operation test if required 2 7 Check the following when performing val...