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Instruction Manual

D102175X012

EZ-C, ET-C, and EWT-C Valves

July 2017

6

Figure 3. Double PTFE V‐Ring Packing Arrangements

A6746

9.5 mm

(3/8 INCH)

STEM

12.7 mm

(1/2 INCH)

STEM

19.1, 25.4, OR 31.8 mm

(3/4, 1, OR 1‐1/4 INCH)

STEM

UPPER WIPER
(KEY 12)

PACKING
FOLLOWER (KEY 13)

LANTERN RING
(KEY 8)

PACKING BOX
RING (KEY 11)

FEMALE
ADAPTER

PACKING RING

MALE
ADAPTER

LOWER WIPER

NOTE:
PACKING SET (KEY 6) CONTAINS A FEMALE ADAPTER, V-RING PACKING RINGS, MALE ADAPTER, AND LOWER WIPER RINGS.

1

1

1

1

1

Figure 4. Graphite Ribbon/Filament Packing Arrangements

GRAPHITE RIBBON
PACKING RING
(KEY 7)

PACKING
FOLLOWER (KEY 13)

LANTERN RING
(KEY 8)
PACKING BOX
RING (KEY 11)

NOTE:
0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS: USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING.

1

A6747

9.5 mm

(3/8 INCH)

STEM

12.7 mm

(1/2 INCH)

STEM

19.1, 25.4, OR 31.8 mm

(3/4, 1, OR 1‐1/4 INCH)

STEM

GRAPHITE FILAMENT
PACKING RING
(KEY 7)

«
...
4
5
6
7
8
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Summary of Contents for Fisher ET-C

Page 1: ...efer to separate manuals for instructions covering the actuator and accessories Do not install operate or maintain EZ C ET C or EWT C valves without being fully trained and qualified in valve actuator and accessory installation operation and maintenance To avoid personal injury or property damage it is important to carefully read understand and follow all the contents of this manual including all ...

Page 2: ...est 3 Optional Material Temperature Capability 2 EZ C 198 to 149_C 325 to 300_F ET C and EWT C 198 to 66_C 325 to 150_F Maximum Allowable Actuator Thrust See table 2 Flow Characteristics EZ C Equal percentage linear and quick opening ET C and EWT C Equal percentage and linear Flow Directions EZ C Up through the seat ring only ET C and EWT C Normally down 4 Approximate Weights EZ C NPS 1 11 kg 33 l...

Page 3: ...line pressure release pressure from both sides of the valve body and drain the process media from both sides of the valve Remove actuator supply pressure and use lockout procedures to be sure that the above measures stay in effect while you work on the equipment Refer to the Warnings at the beginning of the Maintenance section for additional information WARNING Always wear protective gloves clothi...

Page 4: ...nnet to come in contact with the packing Also if insulation is applied do not let the insulation run up the extension bonnet This could cause the packing to freeze and be damaged Liquid Service The preferred method of mounting for liquid service is with the actuator vertical above the valve body This will allow a vapor layer to form between the liquid and the packing If there are piping constraint...

Page 5: ...a from both sides of the valve D Vent the pneumatic actuator loading pressure and relieve any actuator spring precompression D Use lock out procedures to be sure that the above measures stay in effect while you work on the equipment D The valve packing box may contain process fluids that are pressurized even when the valve has been removed from the pipeline Process fluids may spray out under press...

Page 6: ...ALE ADAPTER LOWER WIPER NOTE PACKING SET KEY 6 CONTAINS A FEMALE ADAPTER V RING PACKING RINGS MALE ADAPTER AND LOWER WIPER RINGS 1 1 1 1 1 Figure 4 Graphite Ribbon Filament Packing Arrangements GRAPHITE RIBBON PACKING RING KEY 7 PACKING FOLLOWER KEY 13 LANTERN RING KEY 8 PACKING BOX RING KEY 11 NOTE 0 102 mm 0 004 INCH THICK SACRIFICIAL ZINC WASHERS USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING 1 A...

Page 7: ...f a new valve stem is critical for making a good packing seal If the leakage comes from the outside diameter of the packing it is possible that the leakage is caused by nicks or scratches around the packing box wall If performing any of the following procedures inspect the valve stem and packing box wall for nicks and scratches Replacing Packing WARNING Refer to the WARNING at the beginning of the...

Page 8: ...net joint by either rocking the bonnet or prying between the bonnet and valve body Work with a prying tool around the bonnet until the bonnet loosens Table 3 Recommended Torque for Packing Flange Nuts VALVE STEM DIAMETER PRESSURE RATING GRAPHITE PACKING PTFE PACKING Minimum Torque Maximum Torque Minimum Torque Maximum Torque mm Inch NSm Lbf in NSm Lbf in NSm Lbf in NSm Lbf in 9 5 3 8 150 3 27 5 40...

Page 9: ... the valve body Installing the Bonnet 13 Remove the covering protecting the valve body cavity and install a new bonnet gasket key 10 making sure the gasket seating surfaces are clean and smooth Then slide the bonnet over the stem and onto the stud bolts key 15 Note Proper performance of the bolting procedures in step 10 compresses the spiral wound gasket key 12 or load ring key 26 to both load and...

Page 10: ...l increments until one of the nuts reaches the minimum recommended torque shown in table 3 Then tighten the remaining nut until the packing flange is level and at a 90 degree angle to the valve stem d For ENVIRO SEAL live loaded packing refer to the Fisher instruction manual titled ENVIRO SEAL Packing System for Sliding Stem Valves 18 Mount the actuator on the valve assembly and reconnect the actu...

Page 11: ...assembly associated gaskets and shim out of the valve body If the valve plug is to be reused protect the valve plug seating surface to prevent damage 3 To disassemble the stem plug and pin drive or drill out the pin key 8 and unscrew the valve stem key 7 from the valve plug key 2 4 Remove the seat ring and seat ring gasket keys 9 and 13 5 Inspect parts for wear or damage that could prevent proper ...

Page 12: ... 5 Fisher ET C and EWT C Valve Stem Torque and Pin Replacement VALVE STEM DIAMETER TORQUE MINIMUM TO MAXIMUM DRILL SIZE INCHES mm Inches NSm Lbf ft 9 5 3 8 40 47 25 35 3 32 12 7 1 2 81 115 60 85 1 8 19 1 3 4 238 339 175 250 3 16 25 4 1 421 482 310 355 1 4 31 8 1 1 4 827 908 610 670 1 4 c Place the spiral wound gasket shim and bonnet gasket keys 12 25 and 10 on the shoulder of the seat ring retaine...

Page 13: ...y 22 and disk retainer key 21 5 Clean inspect and if necessary obtain replacement parts ET C and EWT C Valve Plug Maintenance CAUTION To avoid the valve plug seal ring key 28 not sealing properly and affecting valve performance be careful not to scratch the surfaces of the ring groove on the valve plug or any of the surfaces of the replacement ring 1 With the valve plug key 2 removed according to ...

Page 14: ...nance section Torque guidelines for body to bonnet bolting are shown in table 4 7 If the valve has soft metal to metal seats refer to the Coining Soft Metal to Metal Seats section below Coining Soft Metal to Metal Seats Soft metal to metal seat constructions consist of a valve plug with hardfaced CoCr A seat and a non hardfaced S31600 seat ring For optimum shutoff performance of these construction...

Page 15: ...11 RPACKX00102 RPACKX00112 RPACKX00122 Single Graphite Ribbon Filament Contains keys 7 ribbon ring 7 filament ring and 11 RPACKX00532 Single Graphite Ribbon Filament Contains keys 7 ribbon ring 7 filament ring RPACKX00132 RPACKX00142 RPACKX00152 Double Graphite Ribbon Filament Contains keys 7 ribbon ring 7 filament ring 8 and 11 RPACKX00162 RPACKX00172 RPACKX00182 ENVIRO SEAL Packing Retrofit Kits...

Page 16: ...onal tolerances and design specifications may adversely alter the performance of this packing kit ENVIRO SEAL Packing Repair Kits Stem Diameter mm Inches Yoke Boss Diameter mm Inches 9 5 3 8 54 2 1 8 12 7 1 2 71 2 13 16 19 1 3 4 90 3 9 16 25 4 1 127 5 Double PTFE Contains keys 214 215 218 RPACKX00192 RPACKX00202 RPACKX00212 RPACKX00222 Graphite ULF Contains keys 207 208 209 210 and 214 RPACKX00592...

Page 17: ...FE V Ring Packing Packing Set PTFE 1 req d for single 2 req d for double 1 6 1R290001012 1R290201012 1R290401012 1R290601012 Graphite Ribbon F ilament Packing Graphite Ribbon Ring 2 req d 7 1V3160X0022 1V3802X0022 1V2396X0022 1U6768X0022 Graphite Filament Ring 7 1F3370X0322 1E3190X0222 1E3191X0282 1D7518X0132 Quantity Required 2 2 3 3 1 Key 6 for double construction contains one extra packing ring...

Page 18: ...y valve size serial number and desired material 2 Valve Plug See following table Key Description Part Number 3 Seat Ring Retainer CF8M 316 SST Part numbers for Seat Ring Retainer Bushing Assemblies are provided in a following table NPS 1 25A6683X022 NPS 1 1 2 25A6685X022 NPS 2 25A6687X022 NPS 3 25A6689X022 NPS 4 35A6691X022 7 Stem See following table 8 Pin See following table 9 Seat Ring See follo...

Page 19: ...truction Manual D102175X012 EZ C ET C and EWT C Valves July 2017 19 Figure 8 Fisher EZ C Valve Assembly 44B8573 B 16A1943 A GASKET DETAIL APPLY LUBRICANT NOTE EZ C KEY NUMBERS NOT SHOWN ARE 18 19 33 AND 34 ...

Page 20: ...inear 9 5 3 8 15A6618X012 15A6619X012 12 7 1 2 15A6620X012 15A6621X012 Equal Percentage 9 5 3 8 15A6638X012 15A6639X012 12 7 1 2 15A6640X012 15A6641X012 2 3 4 Quick Opening 50 8 2 12 7 1 2 15A6524X012 15A6525X012 19 1 3 4 15A6526X012 15A6527X012 Linear 12 7 1 2 15A6622X012 15A6623X012 19 1 3 4 15A6624X012 15A6625X012 Equal Percentage 12 7 1 2 15A6642X012 15A6643X012 19 1 3 4 15A6644X012 15A6645X01...

Page 21: ...pacity 12 7 19 1 1 2 3 4 1B599835072 1B813635072 Micro Form Linear Equal Percentage and Quick Opening restricted capacity 9 5 12 7 3 8 1 2 1B599335072 1D5423X00B2 3 All 12 7 19 1 1 2 3 4 1B599835072 1B813635072 4 Full Capacity 12 7 19 1 1 2 3 4 1B599835072 1B813635072 Restricted Capacity 12 7 19 1 1 2 3 4 1B599335072 1F723635072 Key 9 Fisher EZ C Valve Seat Ring S31600 VALVE SIZE NPS PORT DIAMETER...

Page 22: ...31600 graphite NPS 3 1R3484X0042 NPS 4 6X4 8X4 1R3724X0042 NPS 6 8X6 12X6 1U5081X0052 NPS 8 10X8 10A3265X112 Key Description Part Number 12 Spiral Gasket N06600 graphite NPS 3 1R348299442 NPS 4 6X4 8X4 1R372299442 NPS 6 8X6 12X6 1U508599442 13 Seat Ring Gasket NPS 3 S31600 graphite 1R3481X0052 NPS 4 6X4 8X4 S31600 graphite 1J5047X0062 NPS 6 S31600 graphite 1U5086X0032 NPS 8X6 12X6 N06600 graphite ...

Page 23: ...ure 9 Fisher ET C and EWT C Valve Assembly 54B8568 C 54B8579 B 16A1943 A 54B8568 C 54B8568 C WHISPER TRIM STD TRIM CAVITROL TRIM FLOW DIRECTION VIEW A FLOW UP FLOW DOWN ALL CONSTRUCTIONS EXCEPT NPS 8 AND 10X8 FOR NPS 8 AND 10X8 CONSTRUCTIONS VIEW B METAL SEAT COMPOSITION SEAT ...

Page 24: ...158 USA Sorocaba 18087 Brazil Cernay 68700 France Dubai United Arab Emirates Singapore 128461 Singapore www Fisher com The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use...

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