Fisher ET - Specifications

ET Valve
Instruction Manual
Form 5081
June 2002
2
Table 1. Specifications
End Connection Styles
Cast Iron Valves
Flanged: Class 125 flat-face or 250 raised-face
flanges per ASME B16.1
Screwed: Consistent with ASME B16.4
Steel and Stainless Steel Valves
Flanged: Class 150, 300, and 600 raised-face or
ring-type joint flanges per ASME B16.5
Screwed or Socket Welding: All available ASME
B16.11 schedules that are consistent with Class
600 per ASME B16.34
Buttwelding: Consistent with ASME B16.25
Maximum Inlet Pressure
(1)
Cast Iron Valves
Flanged: Consistent with Class 125B or 250B
pressure-temperature ratings per ASME B16.1
Screwed: Consistent with Class 250
pressure-temperature ratings per ASME B16.4
Steel and Stainless Steel Valves
Flanged: Consistent with Class 150, 300, and 600
pressure-temperature ratings per ASME B16.34
Screwed or Welding: Consistent with Class 600
pressure-temperature ratings per ASME B16.34
Shutoff Classifications
See table 2
Flow Characteristics
Linear (all cages), quick-opening (all except
Whisper Trim

, WhisperFlo

, and Cavitrol

cages), or equal percentage (all except Whisper
Trim, WhisperFlo, and Cavitrol cages)
Flow Directions
Linear, Quick Opening, or Equal Percentage
Cage: Normally down
Whisper Trim and WhisperFlo Cages: Always
up
Cavitrol Cage: Always down
Approximate Weights
VALVE SIZE,
WEIGHT
VALVE SIZE,
INCHES
kg
Pounds
1 & 1-1/4
1-1/2
2
2-1/2
3
4
6
8
14
20
39
45
54
77
159
408
30
45
67
100
125
170
350
900
1. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
Table 2. Available Shutoff Classifications per
ANSI/FCI 70-2 and IEC 60534-4
Valve Design Seating Shutoff Class
Standard air test
(1)
All except those with
PTFE (standard)
V (optional)
All except those with
Cavitrol III cages
IV
Metal
V (optional)
(2)
ET with Cavitrol III
IV (standard)
ET with Cavitrol III
one-stage cage
Metal
V (optional)
ET with Cavitrol III
two-stage cages
Metal V
ET w/PEEK
Anti-Extrusion Rings
Metal
V to 316C (600F)
ET w/
3-7/16 to 7-inch port
Soft or Metal VI
ET and EAT
w/ TSO
(Tight Shutoff Trim)
Replaceable,
protected soft
seat
TSO
(1)
1. This is a special non-ANSI/FCI leakage class.
2. Class V shutoff requires spring-loaded seal ring, radiused-seat plug, and
wide-bevel seat ring (not available with 8-inch port, quick-opening cage). Not
available with trims 4, 29, and 85.
Description
These single-port valves have cage guiding,
quick-change trim, and balanced
push-down-to-close valve plug action. Valve
configurations are as follows:
Design ET—Globe-style valve (figure 1) with
metal-to-PTFE seating (standard for all except
Cavitrol III cages) for stringent shutoff requirements,
or metal-to-metal seating (standard for Cavitrol III
cages, optional for all others) for higher
temperatures.
Design EAT—Angle version of Design ET, used to
facilitate piping or in applications which require a
self-draining valve.