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Waukesha Cherry-Burrell Brand W71/W72RS Sch. 5 Mix Proof Valves

 Maintenance

08/2018

95-03091

Page 27

Disassembly of Valve 

Stems

Disassembly of the valve stems is required for seat ring 
replacement. (For ”Reassembly of Valve Stems‚" turn to 
page 37.)

NOTE: 

(For seat lifting valves) Before disassembly, note the 

position of the upper and lower seat lifting adjustment nuts. See 
Figure 20 on page 25.

NOTE: 

Seals, seal grooves, and contact surfaces are precision 

parts and must not be damaged.

1. Lower stem removal: Using an open end wrench, remove the 

lower stem (Figure 23, item A) from the actuator by turning it 
counter-clockwise.

WARNING

Handle the lower stem with care to prevent bending the inner 

stem. A bent inner stem will cause the valve to operate 

incorrectly.

Maintenance Video 3: Remove lower stem

2. Upper stem removal: Hold the adjusting sleeve stationary 

with a spanner wrench, turn the stem (Figure 24, item B) 
counter-clockwise, and remove it from the actuator. If the 
adapter (Figure 24, item C) comes out of the yoke, handle it 
with care.

Table 6: Call-out table for Figure 24

A = Lower Stem
B = Upper Stem
C = 

Upper Adapter (Bonnet)

Maintenance Video 5: Remove upper stem

WARNING

Do not pressurize the actuator with the stems removed, as 

internal O-ring damage will result.

Adapter Bearings and 

O-rings

Inner O-ring and Bearing Replacement

1. Remove the valve stem assembly from the actuator and slide 

the adapter off the outer stem.

2. Remove and replace the O-ring(s) (Figure 25, item A) inside 

the adapter. For the flush/steam barrier adapters, see Figure 
5 on page 10 and Figure 6 on page 10, respectively. 

Maintenance Video 7: Adapter O-rings and bearing removal 

and replacement

3. Check the split bearing (Figure 25, item B) inside the adapter 

by feeling the amount protruding from the adapter wall. If the 
bearing is flush with the wall, replace the bearing. 

4. Place a screwdriver or pick behind the bearing and pry it 

away from the wall of the adapter. A needle-nose pliers can 
be used to grip the bearing for removal. Be careful not to 
scratch or damage the metal surfaces. 

Figure 23 - Valve Stem Removal

VA100-542

Figure 24 - Stem Removal

Figure 25 - Standard Top Adapter 

A

C

B

Содержание W71

Страница 1: ...W71 and W72RS Schedule 5 Mix Proof Valves FORM NO 95 03091 REVISION 08 2018 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT INSTRUCTION MANUAL...

Страница 2: ...ted in any form or by any means electronic or mechanical including photocopying and recording for any purpose without the express written per mission of SPX FLOW Inc Copyright 2018 SPX FLOW Inc All Ri...

Страница 3: ...pper and Lower Stem 11 Installation 12 Function 12 Introduction 13 General Information 13 Factory Inspection 13 Models and Specifications 13 Equipment Serial Number 13 Operating Parameters 14 Seal Com...

Страница 4: ...earing Replacement 35 Removal of O rings and Bearings Non Seat Lifting Actuators 35 Removal of O rings and Bearings Seat Lifting Actuators 36 Reassembly of Valve Stems 37 Upper Stem Assembly 37 Lower...

Страница 5: ...ations or designs or those of Buyer s contractors or subcontractors other than SPX FLOW or v defects resulting from the manufacture distribution promotion or sale of Buyer s products THE WARRANTIES CO...

Страница 6: ...fied risks as per ISO 31000 and ISO IEC 31010 in their actual current version Locking and Interlocking Devices These devices should be checked for proper working condition and capability of performing...

Страница 7: ...micals especially in presence of acid If chlorine based sanitizers are used such as sodium hypochlorite bleach do not exceed concentrations of 150 ppm available chlorine do not exceed contact time of...

Страница 8: ...dy valves clamp connections must be used on either the upper or lower body to allow for servicing of the o ring seal between the bodies This does not apply to single piece bodies Mix Proof valves with...

Страница 9: ...In higher temperature applications ensure proper accommoda tion for thermal expansion in the pipeline design to minimize stresses on the valve bodies Excessive mechanical and thermal stresses can dis...

Страница 10: ...ater content Dewpoint 35 F 1 6 C quality class 3 For applications at great elevations or at low ambient temperatures the dewpoint changes Oil content if possible without oil Up to 25mg m3 max oil qual...

Страница 11: ...roper precaution to safeguard the flush water supply such as installing backflow prevention devices External Flush Steam Vent Cavity Figure 8 External Steam Barrier upper stem VA100 642 VA100 420B Ste...

Страница 12: ...exits out the leakage port F For steam flushing the outside of the lower stem balancer the low pressure steam enters port D and exits at port E Table 1 Callout table for Figure 9 A Saturated Steam we...

Страница 13: ...Double Seat Mix Proof valves provide safe separation of dissimi lar products within the same valve body SPX FLOW offers sev eral basic valve types in the W70 Series product line W71 and W72RS Series f...

Страница 14: ...ve stem seals Solenoid valves may not be used in the control module in room environments below 32 F 0 C and over 140 F 60 C as func tion cannot be guaranteed Seal Compatibility Table 2 Seal Compatibil...

Страница 15: ...For higher temperature applications than those listed please con sult the factory Operating conditions such as flow rate and pressure must be con sidered when operating near the maximum temperature ra...

Страница 16: ...1 7 33 7 6 00 5 63 3 94 11 76 3 6 1 7 3 3 37 5 6 00 5 82 4 36 12 15 3 6 1 7 34 5 6 00 6 07 4 36 12 73 3 6 1 7 3 4 38 5 6 00 6 32 4 86 13 48 3 6 1 7 35 5 6 00 6 57 4 86 13 73 3 6 1 7 3 6 40 6 6 00 7 35...

Страница 17: ...Connections Figure 11 Solenoid Valve Port Connections VA100 093E 3 1 2 Up to three air supplies controlled by solenoid valves supply air to the valve actuator Figure 11 Table 3 Solenoid Valve Position...

Страница 18: ...n 0 0 1 0 Slow Flasing Green CU4 Control Top W71 Valve Stem Detection Condition Open Sensor Upper Closed Sensor Lower Valve Closed 0 1 Valve Open 1 0 Valve Closed with Upper Seat Clean 0 1 Valve Close...

Страница 19: ...proximity sensors conform to the values in the tables on page 18 If the yoke area does not have a limit sensor visually confirm the upper seat lifting 6 Vent the air in chamber 2 to deactivate the se...

Страница 20: ...urized and Chambers 3 and 2 are vented See Figure 13 Valve Closed The valve is closed when Chambers 3 1 and 2 are vented The large spring closes the valve to the fail safe position See Figure 14 Valve...

Страница 21: ...es Only Chamber 3 is pressurized and Chambers 1 and 2 are vented See Figure 16 For W72RS Series valves the lower seat is pushed down for seat cleaning Valve Closed Lower Seat Lift for W71 Series valve...

Страница 22: ...approx every 3 to 6 months For fluid temperatures of 140 F 60 C and lower approx every 12 months The values listed above are only general guidelines and do not apply for example to fluids which cryst...

Страница 23: ...d threaded stem parts Cleaning Cleaning In Place CIP CIP methods can be used to clean installed automatic valves without disassembly Select methods based on the specific requirements of sanitarians an...

Страница 24: ...not recommended during the initial rinse Maximum Solution Temperature is 180 F 82 C Maximum line pressure during seat cleaning is 90 psi 6 2 bar Minimum cleaning solution velocity is 5 ft s 0 3 m s Cl...

Страница 25: ...factory settings or within the adjustment zone Figure 18 and Figure 19 item B Once a successful seat movement is established clearly mark where the bottom edges of the adjusting sleeve and adjusting...

Страница 26: ...ure proper resetting of seat movements after disassembly 1 Clean rinse and drain the pipe system elements attached to the valve Remove or block the fluid and gas lines to prevent material from enterin...

Страница 27: ...e 24 item C comes out of the yoke handle it with care Table 6 Call out table for Figure 24 A Lower Stem B Upper Stem C Upper Adapter Bonnet Maintenance Video 5 Remove upper stem WARNING Do not pressur...

Страница 28: ...or pick to pull the seat out of the groove Do not scratch or nick the metal seating surface Maintenance Video 8 Upper stem Tri Ring removal 2 Clean the Tri Ring groove after removing the seat 3 Lubric...

Страница 29: ...4 Lubricate the O ring seal and expand it over the stem groove 5 Place the assembly tool over the stem ensuring proper tool orientation Extrude the O ring seal into the groove by evenly tightening the...

Страница 30: ...at removal tool item 2 and carefully set it on the existing seat ring Make sure that the removal tool s pins rest only on the seat not directly on the stem plug as this can damage the metal stem plug...

Страница 31: ...that the side with the chamfered edge is facing into the installation tool as shown in Figure 32 4 Carefully set the stem on the seat and installation tool so that the locating plug fits into the plug...

Страница 32: ...allation base item 4 in place on the stem carefully set the pins of the Tef Flow P seat removal tool item 2 on the existing seat ring Make sure that the pins rest only on the Tef Flow P seat not the s...

Страница 33: ...red 3 Carefully place the aluminum Tef Flow P seat installation tool item 2 over the seat so that the matching shoulder rests snugly over the seat 4 With the stem facing down carefully place the stem...

Страница 34: ...e wall of the lower bearing carrier A needle nose pliers can be used to grip the bearing for removal 4 To install the new bearing coil the bearing to a size smaller than the inside diameter of the low...

Страница 35: ...t lifting valves remove the cap screws Figure 36 item 9 and remove the yoke item 12 from the cylinder assembly Set the yoke aside Maintenance Video 14 Actuator disassembly lower cartridge removal 2 Pu...

Страница 36: ...lower seat lift piston 5 Inspect the nine O rings Figure 37 items 6 7 8 11 17 25 26 and 29 and replace them if they are worn or damaged 6 Inspect the five bearings on W71 Figure 37 items 5 14 15 16 a...

Страница 37: ...e item B aligns with the bottom of the adjustment sleeve This is the factory set lower seat clean position See Seat Cleaning Adjustment on page 25 for instructions on modifying the seat clean movement...

Страница 38: ...S Sch 5 Mix Proof Valves Page 38 95 03091 08 2018 Parts Lists W71 Schedule 5 Mix Proof Seat Lift Valve 1 4 26 16a 8a 20a 25 18 12a 11 10a 14a 15 17a 5 21a 6 3 VA100 711 B 14b 15 17b 21b 5 20b 6 VA100...

Страница 39: ...921 123940 124162 9 16b Stem Lower Assembly Tef Flow P design POA POA POA POA 9 16b 1 Lower Balancer Tef Flow P design 129063 129064 129065 POA 3 EPDM E70217 E70217 E70217 POA FKM V70217 V70217 V70217...

Страница 40: ...91 08 2018 W71 Schedule 5 Mix Proof Seat Lift Valve with External Flush 3 26 4 30 16a 8a 19 14a 17a 15 18 12 11 10a 6 6 20a 5 21a 1 24 25 VA100 712 17c 14a 15 14a 17d VA100 643 14b 15 14a 17b VA100 64...

Страница 41: ...OA 9 3 16b 1 Lower Balancer Tef Flow P design POA POA POA POA 3 EPDM POA POA POA POA FKM POA POA POA POA 17a Seal Retainer Quad Ring 106068 106069 124392 119407 17b Seal Retainer Wiping Stem Seal 1174...

Страница 42: ...2018 W71 Schedule 5 Mix Proof Non Seat Lift Valve with External Flush 6 8a 19 10a 11 12a 14a 15 20a 16 16a 17a 25 21a 21c 18 18 6 5 24 1 3 4 17c 14a 15 14a 17d VA100 643 14b 15 14a 17b VA100 644 15 1...

Страница 43: ...217 POA 17a Seal Retainer Quad Ring 106068 106069 124392 119407 17b Seal Retainer Wiping Stem Seal 117446 117447 POA POA 17c Seal Retainer Quad Ring 114920 117736 118364 POA 17d Seal Retainer Wiping S...

Страница 44: ...arts Lists Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 44 95 03091 08 2018 W72RS Schedule 5 Mix Proof Seat Lift Valve 3 1 4 5 10 11 12 6 18 17a 16 15 14a 8 20a 21a 30 VA100 657...

Страница 45: ...62 116953 114224 14b Wiping Stem Seal Lower EPDM 116198 116195 116199 POA FKM 116191 116196 116200 POA 15 Bearing Lower Seal Retainer 106049 106048 102003 102004 16 Stem Lower Assembly 124916 124917 1...

Страница 46: ...0 11 12 6 18 17a VA100 654 16 15 14a 8 20a 21 1 3 19 Parts Lists Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 46 95 03091 08 2018 W72RS Schedule 5 Mix Proof Seat Lift Valve with...

Страница 47: ...17a Seal Retainer Quad Ring 106068 106069 124392 119407 17b Seal Retainer Wiping Stem Seal 117446 117447 117448 POA 18 Clamp 119 34 119 51 119 87 119 123 19 Spray Bushing 118210 118210 118210 118210 2...

Страница 48: ...1 12 6 18 17a 16 15 14a 8 19 20a 21a VA100 656 Parts Lists Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 48 95 03091 08 2018 W72RS Schedule 5 Mix Proof Non Seat Lift Valve with E...

Страница 49: ...2648 124920 124922 POA 2 17a Seal Retainer Quad Ring 106068 106069 124392 125047 17b Seal Retainer Wiping Stem Seal 117446 117447 117448 POA 18 Clamp 119 34 119 51 119 87 119 123 19 Spray Bushing 1182...

Страница 50: ...0 25 29 11 17 7 9 24 26 12 VA100 714 14 28 22 19 10 10a 30 1 1a 5 6 13 Parts Lists Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 50 95 03091 08 2018 W71 Schedule 5 Mix Proof Seat...

Страница 51: ...g Upper Stem 5901106 5901106 19 Stop Lifter 109913 123998 20 Adjusting Nut Upper Seat Lift 2 3 Valve 122345 4 Valve 109918 6 Valve 122345 21 Bearing Lower seat piston 101995 102052 22 Main Piston 1114...

Страница 52: ...Lists Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 52 95 03091 08 2018 W71 W72RS Schedule 5 Mix Proof Non Seat Lift Valve Actuator VA100 653 7 9 8 4 6 5 14 10 10a 15 12 11 18 3...

Страница 53: ...Bearing Indicator Stem 102757 6 O ring Indicator Stem Nitrile N70210 7 O ring Cylinder Nitrile N70255 8 O ring Piston Nitrile N70433 9 Cap Screw 1 4 20 x 375 lg 30 68 8 req 10 Piston Spring Assembly 1...

Страница 54: ...1 1a 5 6 18 10 14 29 7 4 8 9 22 12 11 17 16 15 20 26 24 23 Parts Lists Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 54 95 03091 08 2018 W72RS Schedule 5 Mix Proof Seat Lift Valv...

Страница 55: ...20 16 Bearing Adjusting Sleeve 109919 109919 17 O ring Inner Yoke Nitrile N70328 N70328 18 Spring Upper Stem 5901106 5901106 20 Adjusting Nut Upper Seat Lift 122345 122345 22 Main Piston 116472 122348...

Страница 56: ...7 4 Buttweld B3 123903 123916 123948 123968 5 Buttweld C1 123900 123913 123945 123965 6 Buttweld E1 123898 123911 123943 123963 1 Buttweld A1 122641 119855 119583 119380 2 Buttweld B1 122643 119857 11...

Страница 57: ...on page 57 W71 W72RS W72RS W71 Tef Flow P Design VA100 082b Tri Ring Tool Part number 102797 VA100 664 Valve Size 2 3 4 Part No 120051 120053 120055 Valve Size 6 Part No 120057 Tef Flow P Tool Kits P...

Страница 58: ...se Tool Upper Stem Insert 3 131301 2 Upper Stem Seat Removal Tool 2 ODT Valve 1 132983 Upper Stem Seat Removal Tool 2 5 ODT and 2 Sch 5 Valve 1 132982 Upper Stem Seat Removal Tool 3 Valve 1 132981 Upp...

Страница 59: ...ower Stem Seat Removal Tool 2 ODT Valve 1 132910 Lower Stem Seat Removal Tool 2 5 ODT and 2 Sch 5 Valve 1 132909 Lower Stem Seat Removal Tool 3 Valve 1 132908 Lower Stem Seat Removal Tool 4 Valve 1 13...

Страница 60: ...n Qty Part No 1 Install Base Stem Tool 1 131301 2 Puck 1 132900 3 Seat Removal Tool 1 Valve 1 133476 Seat Removal Tool 2 Valve 1 133477 Seat Removal Tool 2 5 Valve 1 133478 Seat Removal Tool 3 Valve 1...

Страница 61: ...rnal adapter o ring failure Replace o ring Leakage through outer stem Inner stem o ring failure Replace o ring Operation Valve fails to open Air pressure too low Set air pressure to 72 psi 5 bar minim...

Страница 62: ...Troubleshooting Waukesha Cherry Burrell Brand W71 W72RS Sch 5 Mix Proof Valves Page 62 95 03091 08 2018 Notes...

Страница 63: ......

Страница 64: ...rial changes without notice or obligation Design features materials of construction and dimensional data as described in this bulletin are provided for your information only and should not be relied u...

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