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Summary of Contents for Alfa Laval 5308
- Page 1 Return to menu Instruction Manual 5308 / 5309 Ball Valve IM70968-GB1 2003-06...
- Page 2 Return to menu...
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Page 3: Table Of Contents
2.4 Attaching the actuator and switch to the valve ........ 10 3. Technical Data ..................11 3.1 Torque vs Pressure Differential ............11 4. Parts List....................12 4.1 Ball Valves Models 5308 ½” - 2” ............. 12 4.2 Ball Valves Models 5308 3” - 4” ............14... -
Page 4: Safety
Return to menu 1.1 Important information 1. Safety 1.2 Warning signs Unsafe practices and other important information are emphasized in this manual. Warnings are emphasized by means of special signs. Always read the manual before using the valve! WARNING! Indicates that special procedures must be followed to avoid severe personal injury. CAUTION! Indicates that special procedures must be followed to avoid damage to the valve. -
Page 5: Safety Precautions
Return to menu 1. Safety 1.3 Safety precautions All warnings in the manual are summarized on this page. Pay special attention to the instructions below so that severe personal injury or damage to the valve are avoided. Installation: - Always observe the technical data (see chapter 5). - Always release compressed air after use. -
Page 6: Maintenance
Return to menu 2.1 Valve disassembly 2. Maintenance To disassemble a ball valve: 1. For a manual valve, remove the top handle nut (20) from the stem (4). Remove the handle (7). For actuated valves remove bracket mounting bolts and remove actuator/bracket and coupler. Note: If you are disassembling a 3 or 4 inch valve, you’ll need to remove the actuator mounting bolts. -
Page 7: Valve Inspection
Return to menu 2. Maintenance 2.2 Valve Inspection Seat(s) Carefully examine the PTFE valve ball seats for cracking, checking or excessive wear. Leakage past the seat(s) may result from these types of irregularities. Surface Finish Inspect the bore of the ball and the valve stem in the valve upper body for signs of galling. Replace both if galling exists. Galling will continue to occur if only one part is replaced and the other is damaged. -
Page 8: Valve Assembly
Return to menu 2.3 Valve Assembly 2. Maintenance To assemble a ball valve: 1. Place the lower packing ring (11) on the valve stem (4) and slide the stem into the stem hole in the upper body of the valve. 2. - Page 9 Return to menu 2. Maintenance 2.3 Valve Assembly 9. Assemble the valve body ends (2), with gaskets (13) in place, to each end of the valve body (1). ½” through 2” size use 4 bolts (14) and 4 bolt nuts (17). 3” and 4” size, use 4 studs (14) and 8 stud nuts (17). Refer to Table 1 for proper torques. 10.
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Page 10: Attaching The Actuator And Switch To The Valve
Return to menu 2.4 Attaching the actuator and switch to the valve 2. Maintenance Attaching the Switch to the Actuator 1. Remove the position indicator on the top of the actuator (1). 2. Attach the bracket (10) to the top of the actuator using four bolts (11). -
Page 11: Technical Data
Return to menu 3. Technical Data 3.1 Torque vs Pressure Differential As the amount of pressure in a ball valve increases, so does the amount of torque required to open and close it. Use the charts below to determine the type of actuator, if any, that is required for your application. PTFE Seat Material Reinforced PTFE Seat Material... -
Page 12: Parts List
Return to menu 4.1 Ball Valves Models 5308 ½” - 2” 4. Parts List... - Page 13 Return to menu 4. Parts List 4.1 Ball Valves Models 5308 ½” - 2” BALL VALVE All orders for repair parts must contain the following data. 1. Complete model number, including size. 2. Description and part number. The following exploded view and accompanying parts list facilitate ordering repair parts from the factory. All parts illustrated...
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Page 14: Ball Valves Models 5308 3" - 4
Return to menu 4.2 Ball Valves Models 5308 3” - 4” 4. Parts List... - Page 15 Return to menu 4. Parts List 4.2 Ball Valves Models 5308 3” - 4” BALL VALVE All orders for repair parts must contain the following data. 1. Complete model number, including size. 2. Description and part number. The following exploded view and accompanying parts list facilitate ordering repair parts from the factory. All parts illustrated...
- Page 16 Return to menu How to contact Alfa Laval Contact details for all countries are continually updated on our website. Please visit www.alfalaval.com to access the information direct.
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