SH Series Bimetallic Superheat Steam Traps

SH Series Bimetallic Superheat Steam Traps
SH Series Superheat Traps
Bimetallic Steam Traps For Superheat Conditions
Steam Trapping and
Steam Tracing Equipment
For Pressures to 1 800 psig (124 barg)...Cold Water Capacities to 6 500 lb/hr (2 950 kg/hr)
Description
Armstrong’s SH Series Bimetallic Steam Traps for superheat or low load
conditions are the ideal traps for applications where other trap styles are not
suitable for long life.
The Armstrong SH Series bimetallic traps also have the ability to handle
the large start-up loads associated with superheat applications. The unique
bimetallic element allows for shut-off before superheat reaches the trap,
thus preventing steam loss. The SH-900/1500 series utilizes titanium valves
and seats to ensure extremely long service life in the harsh environment of
superheated steam systems.
Maximum Operating Conditions
Maximum allowable pressure (vessel design):
Model SH-300:
580 psig @ 662°F (40 barg @ 350°C)
Model SH-900L and H:
900 psig @ 900°F (62 barg @ 482°C)
Model SH-1500:
1 800 psig @ 1 050°F (124 barg @ 565°C)
Maximum operating pressure:
Model SH-300:
Model SH-900L:
Model SH-900H:
Model SH-1500:
319 psig (22 barg)
650 psig (45 barg)­­­­­­­
900 psig (62 barg)
1 800 psig (124 barg)
Specification
Steam trap shall be a bimetallic style. The trap shall be investment cast
chrome-moly steel (Model SH-1500) with integral stainless steel strainer,
in-line repairable. The mechanism shall consist of a stacked nickel-chrome
bimetal operator, with titanium valve and seat. The steam trap shall be
capable of operation on low load and superheat applications throughout
its pressure/temperature range.
Bimetallic style steam traps in carbon steel (Model SH-300) or stainless
steel (Model SH-900) with integral stainless steel strainer, in-line repairable.
The mechanism shall consist of a stacked nickel-chrome bimetal operator
(SH-300 nickel plated) with titanium valve and seat (SH-300 chrome steel
valve and seat). The steam trap shall be capable of operation on low-load
applications throughout its pressure/temperature range.
How to Order
• Specify model number
• Specify maximum operating pressure
• Specify size and type of pipe connection. When flanges are required,
specify type of flange in detail
Suggested minimum operating pressure:
Model SH-300:
Not applicable
Model SH-900L and H:
200 psig (14 barg)
Model SH-1500:
600 psig (41 barg)
Connections
Model SH-300:
Model SH-900:
Model SH-1500:
Screwed BSPT and NPT, socketweld,
flanged DIN or ANSI (welded)
Socketweld, flanged, buttweld, screwed,
NPT, BSPT
Socketweld, flanged, buttweld
Materials
164
Model SH-300
Body and cap:
Valve and seat:
Elements:
Strainer:
ASTM A105
ASTM A350-LF2
Chrome Steel - 440C
Nickel plated
Stainless steel screen
Model SH-900
Body and cap:
Valve and seat:
Elements:
Strainer:
ASTM A351 Gr. CF8M
Titanium
Ni-Cr and stainless steel
Stainless steel screen
Model SH-1500
Body and cap:
Valve and seat:
Elements:
Strainer:
ASTM 217 Gr. C12A
Titanium
Ni-Cr and stainless steel
Stainless steel screen
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
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SH Series Superheat Traps
Bimetallic Steam Traps For Superheat Conditions
For Pressures to 1 800 psig (124 barg)...Cold Water Capacities to 6 500 lb/hr (2 950 kg/hr)
Steam Trapping and
Steam Tracing Equipment
F
E
E
F
D
D
B
C
Model SH-300
D
B
C
Model SH-900
SH Series Dimensions and Weights
Model
Model SH-1500
SH-300
in
1/2, 3/4, 1***
4-1/2
3-1/2
2-5/16
—
—
—
Pipe Connections
“B” Height
“C” Face-to-Face
“D” CL to Top
“E” Width
*“F”
*“G”
Weight, lb (kg)
G
SH-900
mm
15, 20, 25
115
90
59
—
—
—
in
1/2, 3/4, 1**
4-1/2
6-1/4
3-3/4
3-3/4
11
—
4.1 (1.9)
SH-1500
mm
15, 20, 25
115
158
95
95
279
—
in
3/4, 1
5
6-1/4
3-13/16
4-7/8
12
6-3/8
mm
20, 25
127
158
97
124
305
162
10 (4.4)
15 (6.8)
*“F” dimensions for SH-900 are for 3/4" connection, class 600 flanged. “F” and “G” dimensions for SH-1500 are for 3/4" connection, class 1500 flanged. Consult factory for
dimensions of models with other connection sizes and/or flanges.
** SH-900 1" buttweld.
***SH-300 1" only available as flanged connections.
SH-300/SH-900 Allowable Pressure/Temperature
SH-1500 Allowable Pressure/Temperature
Temperature° (C)
Temperature (°C)
3 000
38
1 200
93
149
260
343
399
454
510
566
10
110
210
410
310
510
610
710
200
83
54
SH-300
600
41
400
27
200
14
2 000
1 500
200
300
500
650
750
850
950
100
1 000
50
500
0
0
100
150
Pressure (barg)
69
SH-900 (L, H)
800
Pressure (psig)
1 000
Pressure (barg)
Pressure (psig)
2 500
1 050
0
Temperature (°F)
50
250
450
650
850
1 050
1 250
0
1 450
Temperature° (F)
SH-900 Cold Water Capacity
SH-1500 Cold Water Capacity
Pressure, barg
Capacity, lb/hr
14
10 000
27
41
54
69
83
103
500
1 000
100
200
124
400
600
800
1 000
1 200
1 500
Capacity, kg/hr
Pressure, barg
50
1 800
Pressure, psig
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
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