Data Sheet

ES Valve
D100021X012
Product Bulletin
51.1:ES
December 2012
2
Features
 Compliance with the Clean Air Act– Optional
ENVIRO-SEAL™ packing systems (figure 3) provide
an improved stem seal to help prevent the loss of
process fluid. The 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
increased valve plug stability, which reduces
vibration and mechanical noise.
 Economy– Streamlined flow passages provide
higher efficiency and greater capacities per initial
investment.
 Cost-Effective Operation– Increased wear
resistance of the standard hardened stainless steel
trim means long-lasting service. Also, trim inventory
costs are cut because dimensional standardization
permits use of most standard easy-etrimparts.
 Easy Maintenance– The valve can stay in the
pipeline during removal of trim parts for inspection
or maintenance.
 Long-Lasting Shutoff Capability with PTFE Seating–
Controlled compression of optional seat
construction protects PTFE disk between metal disk
seat and disk retainer (figure 1). The flowstream
contacts only the edge of the disk during normal
operation.
 Compliance with European Standards– Valves are
available with dimensions specified by EN/DIN
standards. See figure 7 and the note in figure 8.
 Sour Service Capability– Unless otherwise noted,
references are to NACE MR0175-2002. Optional
materials are available to meet NACE MR0103 and
NACE MR0175 / ISO15156. 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 5...........................
Class VI Shutoff Capabilities 5....................
Tables
Class VI Tables 5................................
Available Constructions 6........................
Typical Combinations of
Metal Trim Parts 7............................
Valve Body/Trim Temperature
Capabilities 9................................
Bonnet Selection Guidelines 9....................
Maximum Flow C oefficients 11...................
Materials and Temperature Limits for
All Other Parts 12............................
Metal Trim Part Materials for
Compatibility with NACE MR0175-2002
(Sour Service) S pecifications,
Environmental Restrictions Apply,
Refer to Standard 13..........................
Bolting Materials and Temperature Limits
for Bolting Compliance with
NACE MR0175-2002 15.......................
Port Diameters, Valve Plug Travel, and
Stem and Yoke Boss Diameters 15..............
Dimensions 17.................................