Emerson Fisher easy-e ET Data Sheet
ET Valve
D100022X012
Fisherr ET, EAT, and ETR
Sliding-Stem Control Valves
Fisher ET, EAT, and ETR general-purpose control valves
(figures 1, 2, and 3) are used for throttling or on-off
controlofawidevarietyofliquidsandgases.Allthree
valve designs have single ports, balanced valve plugs,
and cage guiding. Metal-to-PTFE seating for stringent
shutoff requirements is standard in all valves except
those with Cavitrolt III cages. Metal-to-metal seating
forhighertemperaturesisstandardforvalveswith
Cavitrol III cages and optional for all other valves.
The temperature limits of ET valves can be extended
above 232_C(450_F) by using PEEK
(PolyEtherEtherKetone) anti-extrusion rings in
combination with a spring-loaded PTFE seal. The PEEK
anti-extrusion rings expand to close off the clearance
gapbetweentheplugandthecagewherethePTFE
seal may extrude at high temperatures and pressures.
The temperature limits are extended to 316_C (600_F)
for non-oxidizing service and to 260_C(500_F) for
oxidizing service.
Product Bulletin
51.1:ET
December 2012
The ET product line is available for a wide range of
applications, including sulfide and chloride
stress-cracking environments common to the oil and
gas production industries. To discuss available
constructions, contact your Emerson Process
Management sales office and include the applicable
codes and standards required for these environments.
The easy-et Valve Family
ET, EAT, and ETR control valves are part of the versatile
easy-e family of Fisher industrial control valves. easy-e
valves share the following characteristics:
Multiple trim material choices
Interchangeable, restricted-capacity trims and
full-sized trims to match variable process flow
demands
W1916-3
FISHER ET CONTROL VALVE
WITH 667 ACTUATOR
Different cage/plug styles that provide particular
flow characteristics for highly-specialized
applications. The standard cage comes in three
different flow characteristics:
J linear, or J equal percentage.
Whisper Trimt I, Whisper Trim III (figure 6), and
WhisperFlot cages (figures 4 and 5) attenuate
aerodynamic noise in gaseous service.
To help eliminate cavitation damage in a
properly-sized valve, a standard-travel, Cavitrol III,
one-stage cage (figure 8) and a long-travel, Cavitrol
III, two-stage cage are available in the NPS 1
throughNPS8ETcontrolvalve.
J quick-opening,
www.Fisher.com
Product Bulletin
51.1:ET
December 2012
ET Valve
D100022X012
Features
Compliance with the Clean Air Act–ENVIRO-SEAL™
packing systems (figures 9 and 10) that provide an
improved stem seal to help prevent the loss of
process fluid are available. These packing systems
featurePTFEorGraphiteULFpackingwith
live-loading for reduced packing maintenance.
PTFE Seating for Long-Lasting Shutoff
Capability–Controlled compression of standard
seat construction protects PTFE disk between metal
disk seat and disk retainer (figure 1). Only the edge
of the PTFE disk is contacted by the flowstream
during normal operation. Excellent shutoff is
maintained by a backup ring or spring-loading that
forces the valve plug seal ring against the cage
(figure 1).
Valve Plug Stability– Rugged cage guiding provides
high valve plug stability, which reduces vibration
and mechanical noise.
Cost-Effective Operation and Maintenance
Economy–Increased wear resistance of hardened
stainless steel trim means longer-lasting service.
When inspection or maintenance is necessary, the
body can stay in the pipeline during removal of trim
parts. Balanced valve plug construction permits use
of smaller, lower-cost Fisher actuators. The ETR
valve also permits easy body interior access without
having to remove the bonnetoractuator(figure3).
And, trim inventory costs are cut because
dimensional standardization permits use of most
standard easy-etrimparts.
Compliance with European Standards–Valvesare
available with dimensions specified by EN/DIN
standards. See figure 15.
Sour Service Capability– Unless otherwise noted,
references are to NACE MR0175-2002. Optional
materials are available to meet NACE MR0103 and
NACE MR0175 / ISO 15156. Material requirements
under these standards vary by edition and year of
issue; the specific standard must be specified.
Table of Contents
Features 2.....................................
Specifications 3................................
ENVIRO-SEAL Packing System
Specifications 4..............................
ENVIRO-SEAL and HIGH-SEAL
Packing Systems 6...........................
ANSI/FCI Class VI Shutoff
Capabilities 6................................
Tables
Available Constructions 5.......................
Shutoff Classifications 5........................
Class VI Shutoff Availability 6....................
Class VI Trim Materials 6........................
Trim Materials 10..............................
Materials and Temperature Limits for
Other Parts 17..............................
Valve Body/Trim Temperature
Capabilities 18.............................
Bonnet Selection Guidelines 19..................
Maximum Flow Coefficients 19..................
Port Diameters, Valve Plug Travel,
Stem and Yoke Boss Diameters 20.............
Metal Trim Parts 23............................
Bolting Materials and T emperature Limits 23......
Dimensions 24.................................
Ordering Information 27.........................
2
ET Valve
D100022X012
Specifications
Product Bulletin
51.1:ET
December 2012
Available Configurations
ET: Single-port, globe-style control valve with cage
guiding, balanced valve plug, and push-down-to-close
valve plug action (figure 1)
EAT: Angle version of ET control valve, used to
facilitate piping or in applications where a
self-draining valve is desired (figure 2)
ETR: Same as ET control valve except with
push-down-to-open valve plug action (figure 3)
Valve Sizes and End Connection Styles
Flanged raised-face per EN 1092-1/B and see table 1
Maximum Inlet Pressures and Temperatures
(1,2)
As listed below, unless limited by maximum pressure
drop or material temperature capabilities
Valves with Cast Iron Bodies
Flanged: Consistent with CL125B or 250B per ASME
B16.1
Valves with Steel and Stainless Steel Bodies
Flanged: Consistent with CL150, 300, and 600
(3)
per
ASME B16.34
Screwed or Welding: Consistent with flanged CL600
per ASME B16.34
Maximum Pressure Drops
(2)
Same as maximum inlet pressure for specific
construction defined above, except where further
limited as follows:
All Valves Except Those with Cavitrol III, Whisper Trim
III, and WhisperFlo Cages: Seefigure11.
Valves with Cavitrol III Cages: Seefigure12.
Valves with Whisper Trim III Cages: Seefigure13
except where further limited by the following max
P/P1 ratios
(4)
– 0.60 for level A3 cage, 0.75 for level
B3 cage, 0.85 for level C3 cage, or 0.99 for level D3
cage
Valves for NACE MR0175 / ISO 15156 and MR0103:
Seefigure14
Shutoff Classifications Per ANSI/FCI 70-2
and IEC 60534-4
Class IV, V, or VI. See tables 2, 3, or 4
Construction Materials
Body, Bonnet, and Bonnet Spacer or Bottom Flange, if
used:
J Cast iron, J WCC carbon steel, or J LCC
carbon steel,
J WC9 chrome moly steel, J CF8M
- continued -
(cast 316 stainless steel), or
J other materials upon
request
Valve Plug, Cage, and Metal Seating Parts:
All Valves Except Those with Cavitrol III or Whisper Trim
III Cages: See table 5
Valves with Cavitrol III Cages: See table 6
Valves with Whisper Trim III Cages: See table 8
Valves with WhisperFlo Cages: See table 7
Bellows Seal Assembly:
J N04400
J 316L stainless steel or
All Other Parts: See table 9
Material Temperature Capabilities
(2)
Body/Trim Combinations:
All Valves Except Those with Cavitrol III or Whisper Trim
III Cages: Seefigure11
Valves with Cavitrol III Cages: See table 6
Valves with Whisper Trim III Cages: See table 8
Valves with WhisperFlo Cages: See table 7
Bolting For NACE MR0175 / ISO 15156 and MR0103:
See table 18
Bonnets: See table 11
All Other Parts: See table 9
Flow Characteristics
Standard Cages:
J equal percentage
J Quick-opening, J linear, or
Whisper Trim, WhisperFlo, and Cavitrol Cages: Linear
Flow Directions
ET
Standard Cage: Normally down
Whisper Trim and WhisperFlo Cages: Always up
Cavitrol Cage: Always down
EAT
Standard Cage with Liner for Metal Seat: Normally
down
Standard Cage without Liner: Flow up or down
Whisper Trim and WhisperFlo Cages: Always up
ETR
Standard Cage: Normally up
Whisper Trim Cage: Always down
Flow Coefficients and Noise Level Prediction
See table 12 and Catalog 12
For Whisper Trim III cage flow coefficients (other than
NPS 6 valves), contact your Emerson Process
Management sales office
3
Product Bulletin
51.1:ET
December 2012
Specifications (continued)
ET Valve
D100022X012
Port Diameters and Maximum Valve Plug Travels
See tables 13 and 15
Yoke Boss and Stem Diameters
See table 14
Approximate Weights
NPS 1: 14 kg (30 lb)
NPS 1-1/2: 20 kg (45 lb)
NPS 2: 39 kg (85 lb)
NPS 2-1/2: 45 kg (100 lb)
NPS 3: 57 kg (125 lb)
Typical Bonnet Styles
See table 11
NPS 4: 77 kg (170 lb)
NPS 6: 159 kg (350 lb)
NPS 8: 408 kg (900 lb)
Packing Arrangements
Standard Material: Single PTFE V-ring
Additional Options
Optional Materials: See table 9
ENVIRO-SEAL Packing Systems: See figures 9 and 10
ENVIRO
-
SEAL Packing Systems in vacuum service:
Standard ENVIRO-SEAL packing systems can be used
in vacuum service with packing rings in standard
orientation. Do not reverse the ENVIRO-SEAL PTFE
packing rings. Also, see Bulletin 59.1:061,
ENVIRO-SEAL Packing Systems for Sliding-Stem
Valves
1. EN (or other) ratings and end connections can usually be supplied; consult your Emerson Process Management sales office.
2. The pressureor temperature limitsin this bulletin, and anyapplicable code limitations,should not be exceeded.
3. Certain bonnetbolting material selectionsmay require a CL600 easy-e valveassembly to be derated. Contactyour Emerson Process Managementsales officefor more information.
4. Limitation based on excessive noise increase if max P/P
ratio for a given cage level is exceeded.
1
J Lubricator, J lubricator/isolating valve, J drilled
and tapped connection in extension bonnet for
leak-off service,
J body drain plug, J style 3
fabricated extension bonnet made on order to a
specific length for cryogenic service,
J style NS
bonnet for seismic service requirements,
suitable for nuclear service,
J Class V shutoff for ET
above 232_C(450_F) using PEEK anti-extrusion rings
ENVIRO-SEAL Packing System Specifications
J packings
Applicable Stem Diameters
J 9.5 mm (3/8 inches), J 12.7 mm (1/2 inches),
J 19.1 mm (3/4 inches), J 25.4 mm (1 inch), and
J 31.8 mm (1-1/4 inches) diameter valve stems
Maximum Pressure/Temperature Limits
(1)
To Meet the EPA Fugitive Emission Standard of 100
(2)
PPM
For ENVIRO-SEAL PTFE and ENVIRO-SEAL Duplex packing
systems: full CL300 up to 232_C(450_F)
For ENVIRO
-
SEAL Graphite ULF packing: 104 bar (1500
psig) at 316_C(600_F)
Construction Materials
PTFE Packing Systems
Packing Ring and Lower Wiper: PTFE V-ring
(3)
Male and Female Adaptor Rings: Carbon-filled PTFE
V-ring
1. Refer to the valve specifications in this bulletin for pressure/temperature limits of valve parts. Do not exceed the pressure/temperature rating of the valve. Do not exceed any applicable code
or standard limitation.
2. The EnvironmentalProtection Agency (EPA) has set a limitof 100 parts per million (ppm) for fugitiveemissions from a valve in selected VOC (VolatileOrganicCompound)services.
3. In vacuumservice, it is not necessary to reverse the ENVIRO-SEAL PTFE packing rings.
Graphite ULF Packing Systems: Graphite rings
Duplex Packing Systems:
Male and Female Adaptor Rings: Carbon-filled PTFE
V-ring
Guide Bushings: Carbon graphite
Packing Rings: Graphite composite
Packing Washer: PTFE
Anti-Extrusion Washer: Filled PTFE (not required for
Graphite ULF or duplex packing)
Lantern Ring: S31600 (316 stainless steel) (not
required for Graphite ULF packing)
Packing Box Flange: S31600
Spring:
J 17-7PH stainless steel or J N06600
Packing Follower: S31600 lined with carbon-filled
PTFE
Packing Box Studs: Strain-hardened 316 stainless
steel
Packing Box Nuts: 316 stainless steel SA194 Grade
8M
4
ET Valve
D100022X012
Product Bulletin
51.1:ET
December 2012
Table 1. Available Constructions
VALVE BODY MATERIAL AND END CONNECTION STYLE
VALVE
ET
EAT
ETR
VALVE
ET
EAT
ETR
X = AvailableC onstruction.
1. End connectionstyle abbreviations: FF- Flat Faced, RF- Raised Face, RTJ - Ring Type Joint.
2. End connection EN1092-1/B.
VALVE SIZE,
NPS
1, 1-1/2,or 2
2-1/2, 3,4, 6, or 8
1or2
3, 4, or 6
1, 1-1/2,or 2
2-1/2, 3,or 4
VALVE SIZE,
DN
25, 40,50, 65, 80,
100, 150, or 200
25, 50, 80, 100, or
150
25, 40,50, 65, 80,
or 100
Cast Iron Valve Body Carbon Steel, Alloy Steel, orStainless Steel Valve Body
CL125
FF Flanged
X
X
---
---
---
---
PN16 PN25 PN40 PN63 PN100
X X X X X
X X X X X
X X X X X
CL250
RF Flanged
X
X
---
---
---
---
STEEL VALVE BODY MATERIAL AND RAISED-FACE END CONNECTION STYLE
Screwed
X
---
---
---
X
---
RF or RTJ Flanged
CL150 CL300 CL600
X
X
X
X
X
---
X
X
X
X
X
---
(1)
X
X
X
X
X
---
Butt
Weld
X
X
X
X
X
---
(2)
Table 2. Shutoff Classifications Per ANSI/FCI 70-2 and IEC 60534-4
Valve Design Seating Shutoff C lass
All except those with Cavitrol III cages PTFE
Metal
ET with Cavitrol III one-stagecage Metal
ET with Cavitrol III two-stage cages Metal V
ET and EAT w/ TSO (Tight Shutoff) trim
(CL125 through 600)
ET w/TSO (TightShutoff) trim (CL125
1.ClassVshutoffrequiresspring-loaded sealring, radius-seat plug, and wide-bevel seat ring (not available with 8-inch port, quick-opening cage). Not available withtrims 4, 29,and 85.
2. For additionalinformation, contact your Emerson ProcessManagement sales office.
3. Refer totable 3.
through 600)
Replaceable,
protected soft seat
Std or Cavitrol III
trim. Replaceable,
protected soft seat.
Valves with TSO trim are factory tested to a more stringent Emerson Process
TSO is not an ANSI/FCI leakage class.
Management test requirement of no leakage at time of shipment. Test medium is
water. Specify service nP when ordering. Shutoffclass V.
VAirTest
V (optional)
VI (optional)
IV (standard)
V (optional)
VI (optional)
IV (standard)
V (optional)
(2)
TSO
(3)
(1)
(3)
Socket
Weld
X
X
X
X
X
---
5
Product Bulletin
51.1:ET
December 2012
ET Valve
D100022X012
ENVIRO-SEAL, HIGH-SEAL
Packing Systems
ENVIRO-SEAL and HIGH-SEAL packing systems offer
exceptional sealing capabilities. These systems easily
install in existing valves or can be purchased with new
valves. These systems help seal the process to
conserve valuable process fluid. The long-life and
reliability of these systems also reduce maintenance
costs and downtime.
For applications requiring compliance with
environmental protection regulations, the unique
ENVIRO-SEAL packing system (figure 10) and a unique
ENVIRO-SEAL bellows seal system (figure 9) are
offered. The emission control packing system keeps
emission concentrations below the EPA 100 ppm
requirement.
For an excellent stem seal in applications that are not
environmentally-sensitive, the HIGH-SEAL Graphite
Table 3. Class VI Shutoff Availability
Valve Port Size,Inches Seat Minimum SeatLoad
ET
ET
1. Limited retrofitcapability. Consultyour Emerson ProcessManagement sales office.
2. Not for use with NPS 8.
(1, 2)
² 3.4375 ± 7
² 3.4375 ± 7
ULF packing system (figure 10) is offered. The
HIGH-SEAL packing system provides improved sealing
at pressure/temperature ratings beyond ENVIRO-SEAL
limits.
ENVIRO-SEAL packing systems, available with PTFE,
Graphite ULF, or duplex packing, and the HIGH-SEAL
Graphite ULF packing system feature live-loading and
unique packing-ring arrangements for long-term,
consistent sealing performance.
ANSI/FCI Class VI Shutoff
Capabilities
ET valves with soft seat and metal seat constructions
can provide ANSI/FCI Class VI shut-off capabilities. See
tables 3 and 4.
Soft See Catalog 14
Metal 300 lbs/lineal inch
Table 4. Class VI Trim Materials
VALVE
ET
1. UHMWPE (Ultra High Molecular Weight Polyethylene)
CAGE/SEAT
RING RETAINER
S31600 /ENC
S31600 /ENC
S17400 (17-4PH
SST)
S17400
VALVE PLUG SEAT RING SEAL RING
S31600 w/
standard beveled
seat
S31600/CoCr-A
seat w/radiused
seat (special
design)
S41600 w/
standard beveled
seat
S41600 w/radiused
seat (special
design)
S31600/PTFE
S31600 w/wide
beveled seat
(special design)
S31600/PTFE UHMWPE R30003 -29 to66 -20 to150
S31600 w/wide
beveled seat
(special design)
UHMWPE
R30003
UHMWPE R30003 -198 to66 -325 to150
UHMWPE R30003 -29 to66 -20 to150
TRIM TEMPERATURE LIMIT
_C _F
(1)
-198 to66 -325 to150
6
ET Valve
D100022X012
Figure 1. Fisher ET Sectional with Standard Cages
LOAD
RING
W7019-1
STANDARD NPS 8
CONSTRUCTION
SEAL RING
W2914-1
W0995-2
NPS 6OR 8 ET
NPS 1THROUGH 4 ET
(ALSONPS1THROUGH6EAT)
SPRING-LOADED SEAL RING CONSTRUCTION
FOR USE WITH CAVITROL CAGES AND FOR
METAL SEAT WITH OPTIONAL
CLASS V SHUTOFF
Product Bulletin
51.1:ET
December 2012
RETAINING
RING
METAL
BACKUP
RING
SEAL RING
BONNET GASKET
SHIM
SPIRAL
WOUND
GASKET
PIN
SEAT RING
GASKET
W3162-3
METAL
DISK SEAT
PTFE DISK
STANDARD NPS 1 THROUGH
6 CONSTRUCTION
METAL DISK
RETAINER
PTFE V-RING
PACKING
BACKUP RING
SEAL RING
VALVE PLUG
BONNET
GASKET
SHIM
SPIRAL
WOUND
GASKET
W2001-2
CAGE
GASKET
RESTRICTED
TRIM
ADAPTORS
OPTIONAL RESTRICTED TRIM
METAL
SEAT
RING
W0983-2
OPTIONAL METAL-TO-METAL
SEATING
7
Product Bulletin
51.1:ET
December 2012
ET Valve
D100022X012
Figure 2. Fisher EAT Sectional
W0972-3
Figure 3. Fisher ETR Sectional
W1557-4
Figure 4. Typical Valve with WhisperFlo Aerodynamic Trim
W6980
WhisperFlo TRIM
W6851-1
8
ET Valve
D100022X012
Figure 5. Typical WhisperFlo Cage
W7065
Product Bulletin
51.1:ET
December 2012
W6851-1
9
Loading...