Data Sheet

ED Valve
D100017X012
Product Bulletin
51.1:ED
December 2012
2
Features
 Compliance with the Clean Air Act–Optional
ENVIRO-SEAL packing systems (figure 6) provide an
improved stem seal to help prevent the loss of
process fluid. T he ENVIRO-SEAL packing systems
feature PTFE, Graphite ULF, or Duplex packing with
live-loading for reduced packing maintenance.
 Valve Plug Stability– Rugged cage guiding provides
high valve plug stability, which reduces vibration
and mechanical noise.
 More Flo w Capacity for Initial Investment–
Streamlined flow passages in the the ED, EAD, and
EDR valves provide excellent capacities and flow.
 Balanced Valve P lug Construction– Balanced valve
plug construction permits use of smaller, lower-cost
Fisher actuators. Also, trim i nventory costs are cut
because dimensional standardization permits use of
most standard easy-etrimparts.
 High-Temperature Capability with Class IV or Class
V Shutoff–Useofmultiplegraphitepistonrings
(figure 1) permit Class IV shutoff up to 593_C
(1100_F).
Use of C-seal trim (see figure 5) permits Class V
shutoff up to 593_C (1100_F).
 Compliance with European Standards– Valves are
available with dimensions specified by EN/DIN
standards. See figure 13.
 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.
 Operating Economy–Increased wear resistance
provided by standard hardened stainless steel trim
means long service life.
 Maintenance Economy–The valve body can stay in
the pipeline during removal of trim parts. The EDR
valve also features easy valve access without
removing the actuator.
Table of Contents
Features 2.....................................
Specifications 3................................
ENVIRO-SEAL Packing System Specifications 5.......
C-seal Trim Description 9........................
ENVIRO-SEALt and HIGH-SEAL
Packing Systems 9...........................
Tables
C-seal Shutoff Classification 8....................
Available Constructions 9........................
Typical Combinations of Metal Trim Parts 10........
WhisperFlo Metal Trim Part Materials
and Valve Body/Trim Temperature
Capabilities 11...............................
Materials and Temperature Limits for
All Other Parts 14............................
Valve Body/Trim
Temperature Capabilities 17...................
Bonnet Selection Guidelines 18...................
Maximum Flow Coefficients 18...................
Metal Trim Parts (NACE) 19......................
Port Diameters, Valve Plug Travel, and
Stem and Yoke Boss Diameters 20..............
Bolting Materials and T emperature Limits
(NACE) 20..................................
Dimensions 22.................................