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DeZurik VPB V-PORT, Instruction Manual

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DeZurik VPB V-PORT Instruction Manual Download Page 14

DeZURIK 

VPB V-Port Ball Valves

 

D10324 

Page 14

 

February 2016

 

Troubleshooting 

Condition 

Possible Cause 

Corrective Action 

Packing leaks. 

Packing is loose. 

Adjust packing gland. 

Packing is worn. 

Replace packing. 

Valve leaks when fully closed. 

Seat is worn. 

Replace seat. 

Valve leaks when fully closed, 
and ball is galled. 

Ball is worn or galled. 

Replace ball and seat. 

Valve body leaks from body 
joint. 

Pipeline flange bolting is loose. 

Tighten pipeline flange bolts or 
studs.  

Gasket is worn. 

Replace gasket(s).  

Opening/closing torque is 
excessive. 

Bearings, shafts, ball, and/or 
seat are worn. 

Replace worn part(s). 

 

Summary of Contents for VPB V-PORT

Page 1: ...DeZURIK VPB V PORT BALL VALVES Instruction D10324 February 2016 ...

Page 2: ...hazardous pipeline materials Handle valves which have been removed from service with suitable protection for any potential pipeline material in the valve Inspection Your VPB V Port Ball Valve has been packaged to provide protection during shipment however it can be damaged in transport Carefully inspect the unit for damage upon arrival and file a claim with the carrier if damage is apparent Parts ...

Page 3: ...ble of Contents Description 4 Handling 4 Installing Valve 4 Operation 4 Required Tools 5 Lubrication 5 Fusion Powder Coated Valves 5 Adjusting Packing 5 Drawings 6 Replacing Packing 8 Seat Replacement 9 Valve Disassembly 11 Valve Reassembly 12 Troubleshooting 14 ...

Page 4: ...e valve The rigid seat must be positioned in the pipeline with the greater pressure against the seat side of the valve Close the valve align the pipeline on both sides of the valve and ensure that the flanges gaskets and valve are centered before tightening the flange bolts or studs Tighten the bolts or studs evenly in a crisscross pattern Tighten the bolts or studs on the seat side of the valve s...

Page 5: ...n Powder Coated Valves Valves with fusion powder coated exterior paint require flat washers to be installed under the flange nuts when installing the valve to the pipeline flange to prevent the paint from cracking or chipping Adjusting Packing The shaft seal consists of packing in the packing chamber of the body The packing is contained and compressed by the packing gland If the packing leaks tigh...

Page 6: ...DeZURIK VPB V Port Ball Valves D10324 Page 6 February 2016 Drawings Figure 1 Component Identification Disassembled ...

Page 7: ...DeZURIK VPB V Port Ball Valves February 2016 Page 7 D10324 Drawings Continued Figure 2 Component Identification Assembled ...

Page 8: ...mber in the body 7 Place the new packing rings A10 onto the upper shaft A6 and slide rings into position in the packing chamber Note If Graphoil Packing Option G2 A10 is used lubricate the inside and outside diameters of each packing ring with Krytox 240 AC lubricant 1068502 8 Place the gland A9 in position over the upper shaft A6 and packing rings A10 and replace gland nuts A8 Tighten gland nuts ...

Page 9: ...e the associated gaskets A14 and A17 RIGID SEAT Remove the seat A16 from the seat retainer A3 6 Clean all gasket and or seat material from the body and seat retainer 7 Place the ball in the closed position 8 Install seat FLEX METAL a Place in the following order the thin gasket A14 the seat A16 and the thick gasket A17 into the seat bore in the body b Place the seat against the closed ball as show...

Page 10: ...Apply a thread locking compound removable type to the retainer screw threads 12 Tighten the retainer screws evenly A4 to the following torque in Table B while allowing seat to center on the closed ball Table B Torques for Retainer Screws Valve Size Torque in mm ft lbs Nm 1 2 25 50 10 2 13 2 2 4 60 100 12 2 16 2 6 8 150 200 16 2 22 2 10 14 250 350 40 3 54 4 16 20 400 500 80 5 108 7 13 The valve may...

Page 11: ...the valve as described in the Actuator Instructions 5 Remove the adaptor screws A27 and the adaptor P2 from the body A1 6 Remove the two screws A4 and remove the seat retainer A3 and gasket A5 from the body A1 7 Remove seat FLEX METAL AND PTFE SEATS a Remove the seat A16 b If the seat is the flex metal type also remove the associated gaskets A14 and A17 RIGID SEAT a Remove the seat A16 from the se...

Page 12: ...e bottom of the lower shaft A18 If thrust bearing has a fabric side fabric side must face the shaft 7 Apply a light coat of anti seize compound to the threads of the screws A23 8 Place the gasket A21 and the cover A22 on the bottom of the body A1 Fasten the cover with screws A23 For valve sizes 1 2 25 50mm tighten the 1 4 screws to 10 2 ft lbs 13 2 Nm For valve sizes 2 1 2 6 60 50 mm tighten the 3...

Page 13: ...for Setscrews Valve Size Torque in mm ft lbs Nm 1 2 25 50 6 1 8 1 2 4 60 100 10 2 13 2 6 150 12 2 16 2 8 200 16 2 22 2 10 20 250 500 18 2 24 2 18 Stake the set screw in the ball hub to secure it in place 19 Replace the seat and seat retainer as described in steps 7 thru 11 in the Seat Replacement section 20 Mount the adaptor P2 on the body A1 with screws A27 See Table D for mounting screw torques ...

Page 14: ...e packing Valve leaks when fully closed Seat is worn Replace seat Valve leaks when fully closed and ball is galled Ball is worn or galled Replace ball and seat Valve body leaks from body joint Pipeline flange bolting is loose Tighten pipeline flange bolts or studs Gasket is worn Replace gasket s Opening closing torque is excessive Bearings shafts ball and or seat are worn Replace worn part s ...

Page 15: ...antee shall be null and void if after shipment from our factory the item is modified in any way or a component of another manufacturer such as but not limited to an actuator is attached to the item by anyone other than DeZURIK Inc Factory Service personnel All orders accepted shall be deemed accepted subject to this limited warranty which shall be exclusive of any other or previous Warranty and th...

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