Page 1
Data Sheet
1098 & 1100 Siphons
FEATURES
Dissipates elevated live steam temperature
Rugged design for direct mounting
Reduces process temperature to protect
attached instrument
TYPICAL USES
Chemical and petrochemical
Oil and gas
Pulp and paper
Power
SPECIFICATIONS
Process Conn: 1098: ¼ NPT Male, ½ NPT Male
Instrument Conn: 1098: ¼ NPT Male, ¼ NPT Female,,
Max Allowable
Working Pressure:
WETTED COMPONENTS
1098
1100 Black steel, brass, SS
1100: ¼ NPT Male
½ NPT Male, ½ NPT Female
1100: ¼ NPT Male
See page 3 for (mawp) maximum allowable
working pressures
Black steel, brass, 106 seamless steel,
213 seamless steel & 316 seamless SS
1098
Coil Siphon
1100
Pig Tail Siphon
All speci fications are subject to change without notice.
All sales subject to standard terms and conditions.
©2 018 Ash cr of t Inc . 10 98-1100 _siphon _d s_R ev A _0 8-18
KEY BENEFITS
• Protects instrument from
elevated temperatures
•Stem mount instrument to process
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Page 2
Data Sheet
1098 & 1100 Siphons
SIPHON HEAT DISSIPATION CHARTS
These graphs represents the heat dissipation based on results of a specific laboratory test.
These results may vary in the field based on multiple factors such as ambient temperature, type
of process media and/or velocity. This data set is to be used as a reference point only.
These test results are based on an ambient temperature of 68°F.
1098-I and 1098-S Heat Dissapation Chart
Bourdon Tube
Gauge Socket
Siphon Outlet
Siphon Inlet
Input Process
Temperature
Bourdon Tube
Gauge Socket
Siphon Outlet
Siphon Inlet
Input Process
Temperature
50 100 150 200 250 300 350 400 450 500 550 600 650 700 750
DEGREES °F
1098-ND and 1098-CD Heat Dissapation Chart
50 100 150 200 250 300 350 400 450 500 550 600 650 700 750
DEGREES °F
All speci fications are subject to change without notice.
All sales subject to standard terms and conditions.
©2 018 Ash cr of t Inc . 10 98-1100 _siphon _d s_R ev A _0 8-18
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Page 3
Data Sheet
Data Sheet
1098 & 1100 Siphons
ORDERING CODE Example:
Process Connection (process and instrument connection size must be the same size)
02 - ¼ NPT Male 02
04 - ½ NPT Male (1098 only)
Model
1098 Coil pipe 1098
1100 Pig tail
Material MAWP Pipe Schedule
5
I - Black steel pipe (1098 6½˝ or 1100 6
IL - Black steel pipe 8˝ long (1100 only) 500 psi at 400°F (204°C) 40
IN - Black steel pipe angle (1100 only) 500 psi at 400°F (204°C) 40
B - Brass (1098 6½˝ or 1100 5
BL - Brass 8˝ (1100 only) 250 psi at 400°F (204°C) 40
A - SS (1100 only) 500 psi at 400°F (204°C)
S - ASTM A-106 seamless steel, Grade A (1098 only)
SD - ASTM A-106 seamless steel, Grade A (1098 only w/½ NPT)
CD - ASTM A-213 seamless steel, Grade T 22 (1098 only w/½ NPT)
NS - Seamless SS, Type 316 (1098 only w/½ NPT)
ND - Seamless SS, Type 316 (1098 only w/½ NPT)
Instrument Connection (process and instrument connection size must be the same size)
02 - ¼ NPT Male
04 - ½ NPT Male (1098 only)
25 - ¼ NPT Female 25
50 - ½ NPT Female (1098 only)
(if choosing an option(s) must include an “X”)
Options
NH - SS tag wired to siphon
5G - Siphon attached to instrument, (siphon must mate with instrument) 5G
5
⁄8˝ long) 500 psi at 400°F (204°C)
∕8˝ long) 250 psi at 400°F (204°C) 40
338 psi at 1,000°F to 3,360 psi
from -20°F to 400°F (204°C)
420 psi at 1,000°F to 3,740 psi
from -20°F to 400°F (204°C)
1,048 psi at 1,200°F to 9,550
psi from -20°F to 400°F
(204°C)
294 psi at 1,500°F to 3,981 psi
from -20°F to 100°F (38°C)
336 psi at 1,500°F to 5,840 psi
from -20°F to 100°F (38°C)
40
40
80
160
XXS
80
160
02 1098 S 25 X5G
S
X _ _
All speci fications are subject to change without notice.
All sales subject to standard terms and conditions.
©2 018 Ash cr of t Inc . 10 98-1100 _siphon _d s_R ev A _0 8-18
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Page 4
Data Sheet
D
¼ NPT FEMALE
STEEL COUPLING
(25)
¼ NPT
MALE
CONNECTION
(02)
STEEL
SIPHON
B
1.1˝
0.070˝
GAP
Ø 1.7˝
Ø 2.7˝
Ø 0.742
˝
0.060˝
WALL
A
D
½ NPT FEMALE
1098 & 1100 Siphons
1098 Siphons
DIMENSIONS
For reference only, consult Ashcroft for specific dimensional drawings.
1098 Siphon - ¼ NPT
NPT Both Ends
1098 Siphon - ½ NPT
NPT Both Ends
A ±0.25
C ±0.5
B
±1.25
1098 A B C D
1098B 6½ 3¼ 2½ ¼ NPT
1098I 6½ 3¼ 2½ ¼ NPT
1098BT 6½ 3¼ 2½ ¼ NPT
1098S 6½ 3¼ 2½ ¼ NPT
1098S 11½ 5¾ 3
1098 SD 11½ 5¾ 3
1098ND 11½ 5¾ 3
1098CD 11½ 5¾ 3
1098M 11½ 5¾ 3
1098NS 11½ 5¾ 3
7
⁄8½ NPT
7
⁄8½ NPT
7
⁄8½ NPT
7
⁄8½ NPT
7
⁄8½ NPT
7
⁄8½ NPT
C
±0.5
1.74
±1.25
1098 Siphon - ¼ NPT Female
A
±0.25
B
1098
Instrument
Connetion
1098 Siphon- ½ NPT Female
½ NPT MALE
CONNECTION
Process
Connection
A B C
C ±0.5
STEEL
1.74
COUPLING
.06
±0.25
A
±0.25
B
1098B ¼ NPT Female ¼ NPT Male 7 3¼ 2½
1098I ¼ NPT Female ¼ NPT Male 7 3¼ 2½
1098BT ¼ NPT Female ¼ NPT Male 7 3¼ 2½
1098S ¼ NPT Female ¼ NPT Male 7 3¼ 2½
1098S ½ NPT Female ½ NPT Male 12½ 5¾ 5
1098D ½ NPT Female ½ NPT Male 12½ 5¾ 57⁄
1098ND ½ NPT Female ½ NPT Male 12½ 5¾ 57⁄
1098CD ½ NPT Female ½ NPT Male 12½ 5¾ 57⁄
1098M ½ NPT Female ½ NPT Male 12½ 5¾ 57⁄
1098NS ½ NPT Female ½ NPT Male 12½ 5¾ 57⁄
7
⁄
8
8
8
8
8
8
All speci fications are subject to change without notice.
All sales subject to standard terms and conditions.
©2 018 Ash cr of t Inc . 10 98-1100 _siphon _d s_R ev A _0 8-18
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Page 5
Data Sheet
0.000/0.090
¼ NPT FEMALE
1098 & 1100 Siphons
1100 Siphons
DIMENSIONS
For reference only, consult Ashcroft for specific dimensional drawings.
1100 Siphon - ¼ NPT
Space Between Coils
D
TYP.
A
+0.125 -0
+0.25 -0
B
C
+0.125
1100 A B C D
1100A 6
1100B 5
1100BL 8¼ 4
1100C 5
1100I 6
1100IL 8¼ 4
5
⁄835⁄1617⁄8¼ NPT
5
⁄8213⁄162 ¼ ¼ NPT
1
⁄821⁄8¼ NPT
5
⁄8213⁄162 ¼ ¼ NPT
5
⁄835⁄1617⁄8¼ NPT
1
⁄8 23⁄8¼ NPT
1100 Siphon - ¼ NPT Female
COUPLING
STEEL
.06
A
±0.25
B
±0.25
Process
Connection
A B C
1100
C ±0.5
¼ NPT MALE
CONNECTION
Instrument
Connetion
1100DA ¼ NPT Female ¼ NPT Male 7¼ 315⁄1617⁄
1100B ¼ NPT Female ¼ NPT Male 6¼ 213⁄162¼
1100BL ¼ NPT Female ¼ NPT Male 8
7
⁄841⁄821⁄
1100C ¼ NPT Female ¼ NPT Male 6¼ 213⁄162¼
1100I ¼ NPT Female ¼ NPT Male 7¼ 3
5
⁄1617⁄
1100IL ¼ NPT Female ¼ NPT Male 87⁄841⁄823⁄
8
8
8
8
All speci fications are subject to change without notice.
All sales subject to standard terms and conditions.
©2 018 Ash cr of t Inc . 10 98-1100 _siphon _d s_R ev A _0 8-18
of 55
ashcroft.com
info@ashcroft.com
1.800.328.8258
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