armstrong_312

armstrong_312
300 Series Inverted Bucket Steam Trap
Forged Carbon Steel for Vertical Installation
Steam Trapping and
Steam Tracing Equipment
For Pressures to 650 psig (45 bar)...Capacities to 20,000 lb/hr (9,072 kg/hr)
A
Description
Armstrong offers its 300 Series forged carbon steel traps for vertical installation
with a choice of screwed, socketweld or flanged connections.
A
•
K
K
A unique leverage system multiplies the force provided by the bucket to open
the valve against system pressure. The mechanism is free-floating, and has
no fixed pivots to create wear or friction.
Because the mechanism is located at the top of the trap, no dirt can collect
on the orifice. Small particles of dirt are held in suspension until discharged
by the full differential purging action when the bucket sinks, pulling the valve
off the seat.
BB
B
The discharge orifice is surrounded by a water seal, preventing live steam
loss. Automatic air venting is provided by a small vent hole in the bucket, which
provides continuous automatic air and CO2 venting at steam temperature.
G
G
Inverted bucket traps drain continuously, allowing no condensate backup.
They are also resistant to water hammer.
•
For Superheat Service:
1. Don’t oversize the orifice; a restricted orifice may be advisable.
2. Specify a burnished valve and seat and an extended inlet tube
and check valve.
3. Provide a drip leg of adequate diameter and length.
4. Provide a generous length (2'-3') of inlet piping, with the trap
below the main.
5. Don’t insulate the trap or the inlet piping.
Inverted bucket steam trap, type ... in forged carbon steel, with continuous air
venting at steam temperature, free-floating stainless steel mechanism, and
discharge orifice at the top of the trap.
How to Order
Specify:
• Model number
• Size and type of pipe connection. When flanges are required,
specify type of flange in detail
• Maximum working pressure that will be encountered or orifice size
• Any options required
Screwed NPT and BSPT
Socketweld
Flanged
Pressure-Temperature
Ratingdrawing,
for Forged
Steel
Traps
For
a fully detailed certified
refer
to CD
#1002.
Maximum Allowable Pressure (Vessel Design) of PressureContaining Parts at Indicated Temperature
Max. Oper.
See page 185 for dimensional information for flanged and
socketweld connections.
Body:
Internals:
Valve and seat:
Series 300-FW Trap
Specification
Connections
Materials
Series 300 Trap
Model Pressure,
No. Sat. Steam
ASTM A105
Models 312, 313, 316 are also available
with cast 316 stainless steel bodies and all
stainless steel internals
All stainless steel—304 (Models 314, 315
and 316 have cast iron bucket weights)
Hardened chrome steel—17-4PH
or Titanium
psig
Options
• Stainless steel internal check valve
• Thermic vent bucket 250 psig (17 bar) maximum
• Scrub wire
°F
°C
°F
°C
°F
°C
°F
°C
-20/
+650
-28/
+343
700
371
750
399
800
427
bar
bar
psig
bar
psig
bar
psig
bar
psig
310
400 27.5
770
48
770
48
730
50
600
41
312
600
41
600
41
600
41
560
38.5
500
34.5
313
650
45
1,080
74
1,080
74
970
67
780
54
314
650
45
1,130
78
1,120
77
990
68
810
56
315
650
45
1,015
70
965
66.5
860
59
690
47.5
316
650
45
1,100
76
1,050
72
940
65
760
52
NOTES: Maximum operating pressure to be marked on nameplate will be determined by
actual orifice used. Maximum allowable pressures shown in boldface will be marked on
nameplate, unless otherwise requested. Traps with flanges may have different pressuretemperature ratings.
300 Series Bottom Inlet, Top Outlet Traps. Add suffix “CV” to trap number for internal check valve.
Model No. Screwed or SW
310
312
313
314
Model No. Flanged
310-FW
312-FW
313-FW
314-FW
in
mm
in
mm
in
mm
in
mm
Pipe Connections
“A” (Diameter)
315
315-FW
in
mm
316
316-FW
in
mm
1/2, 3/4
15, 20
1/2,
3/4, 1
15, 20, 25
1/2,
3/4, 1
15, 20,
25
1, 1-1/4
25, 32
1, 1-1/4,
1-1/2
25, 32, 40
1-1/2, 2
40, 50
4-5/8
117
6-3/4
171
8
203
8-5/8
219
9-3/4
248
11-7/8
302
“B” (Height, Screwed or SW)
7-15/16
202
10-3/16
259
11-1/2
292
13-11/16
348
15
381
17-1/8
435
“BB”
12-1/16*
306*
12-5/16
313
13-7/8
352
16-1/16
408
17-9/16
446
19-11/16
500
3-1/16
78
4-3/4
121
5-1/8
130
5-3/4
146
6-5/8
168
8-3/8
213
9/16
14.3
1-1/4
31.7
1-7/16
36.5
1-7/16
36.5
1-3/4
44.4
2-1/8
“G” (Body OD)
“K” (CL Outlet to CL Inlet)
Number of Bolts
6
8
54.0
9
10
Weight Scr. or SW lb (kg)
10 (4.5)
30 (13.6)
50 (22.7)
70 (31.8)
98 (44.5)
179 (81.2)
Weight, Flanged lb (kg)
12 (5.4)
32 (14.5)
51 (23.1)
73 (33.1)
103 (46.7)
184 (83.5)
*“BB” dimensions shown are for 3/4" conn., Class 600 flanged No. 310-FW. Consult factory for dimensions of models with other connection sizes and/or flanges.
86
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstronginternational.com
300 Series Inverted Bucket Steam Trap
Forged Carbon Steel for Vertical Installation
For Pressures to 650 psig (45 bar)...Capacities to 20,000 lb/hr (9,072 kg/hr)
Model 312 Capacity
Model 313 Capacity
Model 314 Capacity
Model 315 Capacity
Model 316 Capacity
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
Next
North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstronginternational.com
Steam Trapping and
Steam Tracing Equipment
Model 310 Capacity
87
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement