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DeZurik AA Instructions Manual Download Page 17

DeZURIK 

November 2020 

Page 17 

D10322 

 

Replacing Packing

 

(Continued)

 

10. Replace pin (A46) in valve shaft (A4) (does not apply to valves with stepped shafts). 

11. If the valve has single packing, re-mount the actuator bracket on the valve and tighten the screws 

as shown in Table A (page 17).  

12. Mount the actuator on the valve

—see actuator instructions.  

13. If the actuator is a powered actuator, reconnect power to the actuator. 

14. Actuate the valve. If necessary, adjust the position stops

—see actuator instructions. 

15. Pressurize the valve.  

16. If the packing leaks, tighten the gland nuts evenly and slowly, just enough to stop the leak. 

17. If the valve has dual packing, remove the pipe plug from one of the sensing ports in the secondary 

packing chamber. 

  If leakage occurs through the sensing port on valves with the graphoil dual-seal packing option, 

tighten the gland nuts evenly and slowly, just enough to stop the leakage and replace the pipe 
plug.  

  If leakage occurs through the sensing port on valves with the PTFE dual-seal/mechanical spring 

packing option, repeat the steps in this section, starting with step 1, and replace the packing 
components located in the valve body, below the secondary packing chamber. 

 

Summary of Contents for AA

Page 1: ...DeZURIK Inc Sartell Minnesota USA Phone 320 259 2000 www dezurik com info dezurik com DEZURIK BHP HIGH PERFORMANCE BUTTERFLY VALVE S2 S3 S5 AA HC ML T2 T5 SHAFTS Instruction D10322 November 2020 ...

Page 2: ...ion during shipment however items 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 Replaceable wear parts are listed on the assembly drawing These parts can be stocked to minimize downtime Order parts from your local DeZURIK sales representative or directly from DeZURIK When ordering parts please provide th...

Page 3: ...Graphite Packing Option G1 13 Graphoil Packing Option G2 13 Graphoil Live Loaded Packing Option G2L 14 Graphoil Dual Seal Packing Option G2D 15 Graphoil Dual Seal Live Loaded Packing Option G2LD 16 Torque Specification 18 Seat Replacement 21 Removing Valve From Pipeline 21 Replacing the Seat 21 Resilient Seat Options TT TI RT and RI 22 Metal Seat Option S2 23 Fyre Block Seat Options RTS2 TTS2 TIS2...

Page 4: ...and flange patterns including but not limited to personal injury loss of life loss of product production time equipment property damage lost profits consequential damages of any kind and environment damage and or cleanup Use of metric fasteners with ASME Class 150 300 bolt holes and flange bolt patterns is a misuse that voids all warranties and contractual assurances If you use metric fasteners wi...

Page 5: ...nstalling Valve Lifting the valve incorrectly can damage it Do not fasten lifting devices to the actuator or disc or through the seat opening in the body Lift the valve with slings fastened around the valve body or attach them to bolts or rods run through holes for the pipeline flanges 1 If the valve does not have an actuator mount the actuator on the valve Refer as necessary to the actuator instr...

Page 6: ...e valve Note Refer to the actuator instructions for stop adjustment information Required Tools The valve is assembled using only SAE fasteners To service this unit you should have a full set of combination wrenches Allen wrenches a flat tipped screwdriver a pin punch and a dead blow hammer Lubrication The valve is lubricated at the factory and does not require routine lubrication Refer to the actu...

Page 7: ...DeZURIK November 2020 Page 7 D10322 Drawings Figure 1 Component Identification ...

Page 8: ...nd remove the gland A12 Note Live loaded packing options include a flat washer A37 and several spring washers A36 under each gland nut When required the gland consists of two pieces gland A12 and gland plate A39 6 Remove all of the packing A11 7 If the valve has the dual packing option remove the secondary packing chamber A17 the gasket A16 and the secondary packing A26 8 Remove any packing fragme...

Page 9: ...dary packing chamber A17 and the lantern ring A18 in the configuration shown in Figure 2 c Place the secondary upper set of packing A26 in the secondary packing chamber A17 one ring at a time do not lubricate Start each chevron ring into the packing chamber at a slight angle and push each ring carefully into position so that the sealing lips do not bend over d Lubricate the threads of the two stud...

Page 10: ... consists of one bottom end ring three or more chevron rings and one top end ring Figure 3 Packing Option TC a Place the packing in the body one ring at a time in the configuration shown in Figure 3 Do not lubricate Note Start each chevron ring into the packing chamber at a slight angle and push each ring carefully into position so that the sealing lips do not bend over b Replace the gland A12 and...

Page 11: ... washers A34 in the body one ring at a time as shown in Figure 4 do not lubricate b Place the new gasket A16 the secondary packing chamber A17 and the new secondary packing A26 one ring at a time in the configuration shown in Figure 4 do not lubricate Note Start each chevron ring into the packing chamber at a slight angle and push each ring carefully into position so that the sealing lips do not b...

Page 12: ...cking chamber at a slight angle and push each ring carefully into position so that the sealing lips do not bend over b Lubricate the following surfaces with Never Seez The threads of the two studs A14 The threads and contact faces of the two gland nuts A15 c Replace the gland A12 the new spring washers A36 the two flat washers A37 and the two gland nuts A15 Note Arrange the spring washers in the c...

Page 13: ...the nuts finger tight plus turn d Continue with step 10 on page 16 Graphoil Packing Option G2 The new packing consists of three or more Graphoil rings A11 between two anti extrusion washers A34 Figure 7 Packing Option G2 a Lubricate the inside and outside diameters of each new packing ring with Krytox 240 AC lubricant b Place the new packing and anti extrusion washers in the body one ring at a tim...

Page 14: ...ach new packing ring The threads of the two studs A14 The threads and contact faces of the two gland nuts A15 b Place the new packing A11 and anti extrusion washers A34 in the body one ring at a time in the configuration shown in Figure 8 c Replace the gland A12 the new spring washers A36 the two flat washers A37 and the two gland nuts A15 d Arrange the spring washers in the configuration shown wi...

Page 15: ...and temporarily place the studs in the threaded holes in the body d Place the gland A12 and nuts A15 on the studs and turn the nuts evenly until the gland has moved about 25 of the distance from the bottom of the gland to the top of the body e Remove the nuts the gland and the studs and replace the studs in the secondary packing chamber f Place the following parts in the configuration shown in Fig...

Page 16: ...26 one ring at a time Anti extrusion washers A34 The gland A12 and the gland nuts A15 and the new spring washers A36 The two flat washers A37 in the configuration shown in Figure 8 on page 13 with the top and bottom washers in series and the remaining washers in parallel do not tighten the nuts c Lubricate the threads of the two studs A14 and the threads and contact faces of the two gland nuts A15...

Page 17: ...ons 15 Pressurize the valve 16 If the packing leaks tighten the gland nuts evenly and slowly just enough to stop the leak 17 If the valve has dual packing remove the pipe plug from one of the sensing ports in the secondary packing chamber If leakage occurs through the sensing port on valves with the graphoil dual seal packing option tighten the gland nuts evenly and slowly just enough to stop the ...

Page 18: ...25 11 0 5 1 2 0 05 8 0 551 14 00 0 283 7 19 0 014 0 35 0 032 0 81 6 150 16 1 1 8 0 11 5 0 709 18 00 0 323 8 20 0 020 0 50 0 043 1 09 8 200 19 1 2 1 0 11 6 10 250 23 1 2 5 0 11 7 12 300 43 2 4 8 0 22 4 0 787 20 00 0 402 10 21 0 035 0 89 0 057 1 45 14 350 43 2 4 8 0 22 16 400 45 2 5 0 22 18 450 59 2 6 6 0 22 6 0 984 25 00 0 480 12 19 0 028 0 71 0 063 1 60 20 500 70 2 7 9 0 22 5 0 984 25 00 0 480 12 ...

Page 19: ... 551 14 00 0 283 7 19 0 020 0 50 0 035 0 89 4 100 28 1 3 1 0 11 8 5 125 40 1 4 5 0 11 7 0 630 16 00 0 323 8 20 0 024 0 61 0 041 1 04 6 150 49 2 5 5 0 22 8 8 200 59 2 6 6 0 22 4 0 630 16 00 0 323 8 20 0 035 0 89 0 049 1 24 10 250 110 3 12 4 0 33 8 0 984 25 00 0 480 12 19 0 035 0 89 0 063 1 60 12 300 126 3 14 2 0 33 14 350 152 3 17 1 0 33 7 1 100 27 94 0 480 12 19 0 039 0 99 0 077 1 96 16 400 163 3 ...

Page 20: ...18 27 4 37 5 10 250 3 8 16 5 41 5 56 10 12 16 300 400 1 2 13 99 13 135 18 18 and 20 450 500 5 8 11 200 20 272 27 24 36 550 900 5 8 11 180 20 244 27 42 and 48 1050 1200 3 4 10 330 40 447 54 300 2 3 50 150 1 4 20 8 13 1 18 1 4 6 100 150 5 16 18 27 4 37 5 8 200 3 8 16 5 41 5 56 10 10 12 250 300 1 2 13 99 13 135 18 14 350 5 8 11 200 20 272 27 16 24 400 600 5 8 11 180 20 244 27 30 36 750 900 3 4 10 330...

Page 21: ...to the actuator or disc or through the seat opening in the body Lift the valve with slings fastened around the valve body or attach them to bolts or rods run through holes for the pipeline flanges Replacing the Seat 1 Place the valve in a horizontal position with the seat side up 2 Refer to Figure 1 page 6 for component identification 3 Remove the seat retainer screws A23 the seat retainer A20 and...

Page 22: ... On valve sizes 5 10 125 250mm only center seat retainer gasket A6 in position on the body c Apply a rust inhibitor such as Never Seez to the threads of the seat retainer screws A23 Mount the seat retainer A20 to the body with the seat retainer screws and tighten the screws as shown in Table D page 24 d Continue with step 7 on page 24 Figure 11 Resilient Seat Option Figure 11 Previous Version of R...

Page 23: ...ver Seez to the threads of the seat retainer screws A23 f With all components centered mount the seat retainer A20 to the body with the seat retainer screws Tighten the screws as shown in Table D page 24 g If the valve to actuator connection was loosened in step a re tighten the connection h Adjust the packing gland nuts A15 as described in the Packing Adjustment section If the packing is live loa...

Page 24: ...eat A21 the gasket A27 and the metal seat A28 on the closed disc e Apply a rust inhibitor such as Never Seez to the threads of the seat retainer screws A23 f With all components centered mount the seat retainer A20 to the body with the seat retainer screws Tighten the screws as shown in Table D page 24 g If the valve actuator connection was loosened in step a tighten the connection h Adjust the pa...

Page 25: ...ner Screws A23 as shown in Table D i If the valve actuator connection was loosened in step a tighten the connection j Adjust the packing gland nuts A15 as described in the packing adjustment section k If the packing is live loaded tighten the nuts as shown in Table A page 17 for Class 150 PN 10 PN 16 and JIS 10 valves and in Table B page 18 for Class 300 PN 25 PN 40 and JIS 20 valves l Continue wi...

Page 26: ...oles for the pipeline flanges 4 Remove the actuator and the actuator bracket from the valve 5 Remove pin A46 from valve shaft A4 does not apply to valves with stepped shafts 6 Remove the two gland nuts A15 and remove the gland A12 Note Live loaded packing options include a flat washer A37 and several spring washers A36 under each gland nut When required the gland consists of a two piece gland A12 ...

Page 27: ... larger also include a thrust bearing A8 See Figure 1 on page 6 1 Remove the liners towards the flanged end of carrier and clean the carriers 2 Place a new liner in each carrier from the flanged end Note To increase life position the split in liner towards the side of the body rather than parallel with the pipeline On valve sizes 30 750mm and larger the 317 SST bearing option includes the two thru...

Page 28: ...e the end of the set screw threads once with a pointed punch to secure the set screw in position On valve sizes 14 350mm and larger a Slide the shaft so that the disc pin slots in the shaft are aligned with the disc pin holes in the disc b Apply a rust inhibitor such as Never Seez to the threads of the disc pins A5 c Use two new pins and turn the pins into the threaded holes in the disc A3 and aga...

Page 29: ...follows 1 2 13 screws to 38 5 ft lbs 52 6 Nm 5 8 11 screws to 77 10 ft lbs 104 14 Nm and 3 4 10 screws to 140 18 ft lbs 190 24 Nm 9 Mount the actuator bracket on the valve and tighten the screws as shown in Table A page 17 10 Re mount the actuator on the valve see actuator instructions 11 Actuate the valve If necessary adjust the actuator position stops 12 Install the valve in the pipeline as desc...

Page 30: ...DeZURIK D10322 Page 30 November 2020 Valve Reassembly Continued Figure 15 Disc Pin Assembly ...

Page 31: ...DeZURIK November 2020 Page 31 D10322 Pressure Temperature Curves ...

Page 32: ... shaft Valve does not fully open Open position stop is not adjusted correctly Adjust open stop Disc to shaft connection has failed Replace disc pins and or shaft Opening or closing torque is excessive Bearings shaft disc and or seat are dirty or worn Clean or replace dirty or worn components Shaft is bent Replace shaft Seat leakage and or damage to seat has occurred Media is abrasive Replace exist...

Page 33: ...ll be the only effective guarantee or warranty binding on Seller despite anything to the contrary contained in the purchase order or represented by any agent or employee of Seller in writing or otherwise notwithstanding including but not limited to implied warranties THE FOREGOING REPAIR AND REPLACEMENT LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OBLIGATIONS AND LIABILITIES INCLUDING ALL W...

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