Data Sheet

YD and YS Valves
D100031X012
Product Bulletin
51.1:YD
June 2014
2
Specifications
Valve Sizes, Ratings, and End Connections
(1,2)
Cast Iron Valves
Flanged: NPS 1 through 6 CL125 flat-face or 250
raised-face flanges per ASME B16.1
Screwed: NPS 1/2 through 2 consistent with ASME
B16.4
Steel and Stainless Steel Valves
Flanged: NPS 1 through 8 CL150, 300, and 600
raised-face or ring-type joint flanges per ASME B16.5
Screwed o r Socket Welding: NPS 1/2 through 2
consistent with ASME B16.11
Buttwelding: NPS 1 through 8
(5)
. All available
ASME B16.25 schedules that are consistent with
ASME B16.34
Maximum Inlet Pressures and Temperatures
(1)(2)
As listed below, unless limited by maximum pressure
drop or material temperature capabilities.
Cast Iron Valves
Flanged: Consistent with CL125B or 250B per ASME
B16.1
Screwed: Consistent with flanged CL250 per ASME
B16.4
Steel and Stainless Steel Valves
Flanged: Consistent with CL150, 300, and 600
(3)
per
ASME B16.34
Screwed or Welding: Consistent with flanged CL600
(3)
per ASME B16.34
Operative Pressure/Temperature Limits
(1, 2)
Pressure Drop Limit Due to Gasket Loading:
See table 1
Shutoff Pressure Drop Limits with Typical Actuators:
Seetables6,7,and8
Pressures and Temperatures for Trims Only:
Seefigure7
Temperatures for Body-Trim Combinations:
See table 5
Temperatures for All Other Parts: See table 3
Shutoff Classifications per ANSI/FCI 70-2
and IEC 60534-4
YD
Standard Design: Class IV
High-Temperature Design: Class II
YS
Standard Class: Class IV
Optional Class: Class V (NPS 1 through 4)
Flow Characteristic
Linear
Flow Direction
Seefigure6
Flow Coefficients and Noise Level Prediction
Refer to Fisher Catalog 12
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Table of Contents
Features 1.....................................
Specifications 2................................
ENVIRO-SEAL Packing System Specifications 4......
Flow Directions 5...............................
ENVIRO-SEAL, HIGH-SEAL Packing Systems 6........
Installation 6..................................
Tables
Travel, Port, and Gasket Loading
Pressure Drop Information 8...................
Trim Materials 8................................
Materials and Temperature Limits for Other Parts 9..
Valve Body-Trim Temperature Capabilities 10.......
Maximum Allowable YD Shutoff Pressure
Drops with 657 and 667 Actuators 12...........
Maximum Allowable YS
(Converging Service) Shutoff Pressure
Drops with 657 and 667 Actuators 15...........
Maximum Allowable YS
(Diverging Service) Shutoff Pressure Drops with 657
and 667 Actuators (ON-OFF) application only--
No throttling service 18.......................
Bonnet Selection Guidelines 22...................
Dimensions 22.................................
Ordering Information 22.........................