Specifications; Flow And Sizing Coefficients - Fisher 92S Instruction Manual

Type 92S

Specifications

The Specifications section lists the specifications for the Type 92S regulator. Specifications for a given regulator
as it originally comes from the factory are stamped on nameplates located on both the main valve body and pilot,
while the pilot control spring range is displayed on the pilot spring case.
Main Valve Body Sizes and end Connection Styles
eND CONNeCTION STyLeS AND RATINGS
BODy SIze
Cast Iron Body
1, 1-1/2, and 2
NPS 1, 1-1/2, 2, 2-1/2, 3,
CL125 FF or
and 4 / DN 25, 40, 50, 65,
80, and 100
NPS 6 x 4 /
Not Available
DN 150 x 100
(2)
maximum inlet and Pilot Supply Pressure
Cast Iron Main Valve and Pilot: 250 psig / 17.2 bar
or body rating limit, whichever is lower
Steel or Stainless steel Main Valve and Pilot:
300 psig / 20.7 bar or body rating limit, whichever
is lower
Minimum and Maximum Differential Pressures
miNimUm
BODy SIze,
DIFFeReNTIAL
NPS / DN
PRESSURE
1, 1-1/2, and 2 /
15 psi / 1.0 bar
25, 40, and 50
2-1/2, 3, 4, and 6 x 4 /
65, 80, 100, and 20 psi / 1.4 bar
150 x 100
(2)
Outlet (Control) Pressure Ranges
See Table 2
maximum Outlet Pressures
See Table 3
maximum Allowable Loading Pressure for Pilot
with Tapped Spring Case
Combination of pilot control spring setting and spring
case loading pressure must not exceed 150 psig /
1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.
2. The two-number designation indicates end connection size by trim size.
BODy SIze
NPS DN inch
1 25
1-1/2 40 1-1/8
2 50 1-29/64
2-1/2 65 1-5/8
3 80 2-1/16
4 100 2-3/8
6 x 4 150 x 100 2-3/8
1. C = C x 20 ÷ C
v s 1
2
Steel or
Stainless Steel Body
NPT NPT
CL150 RF, CL300 RF,
CL600 RF, or
CL250 RF
PN 10/25/40
CL300 RF,
CL600 RF, or
PN 16/25-40/64/100
(1)
mAximUm
DIFFeReNTIAL
PRESSURE
200 psi / 13.8 bar or
body rating limit,
whichever is lower
175 psi / 12.1 bar or
body rating limit,
whichever is lower
(1)
(1)
Table 1. Flow and Sizing Coefficients
ORIFICe SIze
REgULATiNg
C
mm
S
7/8 22 16
29 30
37 48
41 74
52 100
60 140
60 150
10.3 bar for Type 6492H pilot or 25 psig / 1.7 bar for
Type 6492L pilot and 250 psig for Type 6492HT
Pressure Registration
External through downstream control line
Maximum Material Temperature Capabilities
Cast Iron Construction: 406°F / 208°C
Steel Construction: 500°F / 260°C
High Temperature Optional Steel and
Stainless Steel Construction: 650°F / 343°C
Main Valve Port Diameters and Flow Coefficients
See Table 1
Downstream Control Line Connections
NPS 1, 1-1/2, or 2 / DN 25, 40, or 50 Body Size:
1/4 NPT in main valve cylinder spacer
NPS 2-1/2, 3, 4, or 6 x 4 / DN 65, 80, 100, or
150 x 100
(2)
(1)
Pilot Spring Case Vent
Standard: 1/8-inch / 3.2 mm drilled hole
Optional: 1/4 NPT tapping for pressure loading or
on-off service
Approximate Weights
BODy SIze
NPS DN
1 25
1-1/2 40
2 50
2-1/2 65
3 80
4 100
6 x 4 150 x 100
(2)
(1)
WIDe-OPeN C
S
FOR RELiEF C
1
SIzING
17.5
33
52
78 34
110
145
155
Body Size: 1/4 NPT in pilot body
APPROximATE
eND
CONNeCTION
STYLE
Pound
NPT or Flanged 32
NPT or Flanged 44
NPT 55
Flanged 67
Flanged 90
Flanged 115
Flanged 165
CL300 335
Flanged
(2)
CL600 435
IeC SIzING COeFFICIeNTS
k
m
x F
T
0.51
0.62 0.47
0.48
0.73 0.48
0.47
0.71
0.46
0.46
(1)
WEigHTS
kg
15
20
25
30
41
52
75
152
197
F
D L
0.79
0.84