880 Series Inverted Bucket Steam Traps

880 Series Inverted Bucket Steam Traps
880 Series Inverted Bucket Steam Traps
Cast Iron for Horizontal Installation With Integral Strainer
Steam Trapping and
Steam Tracing Equipment
For Pressures to 250 psig (17 bar)...Capacities to 4,400 lb/hr (2,000 kg/hr)
C
A
B
D
E
Description
Connections
The most reliable steam trap known—the inverted bucket—provides efficient
condensate drainage of virtually all types of steam-using equipment. Put the
inverted bucket to work in a tough cast iron package with an integral strainer,
and you have the best of both worlds. Because they operate efficiently for
longer periods of time, Armstrong cast iron inverted buckets add solid energy
savings to lower replacement/labor costs. All Armstrong cast iron inverted
bucket steam traps are repairable for even bigger maintenance savings.
Screwed NPT and BSPT
Materials
Body:
Internals:
Valve and seat:
Test plug:
Strainer:
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.
Options
• Stainless steel internal check valve
• Thermic vent bucket
• Scrub wire
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.
Specification
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.
Inverted bucket steam trap, type ... in cast iron with integral strainer, with
continuous air venting at steam temperature, with free-floating stainless steel
mechanism, and discharge orifice at the top of the trap.
Inverted bucket traps drain continuously, although discharging intermittently,
allowing no condensate backup. They are also resistant to water hammer.
How to Order
Specify:
• Model number
• Size and type of pipe connection
• Maximum working pressure that will be encountered or orifice size
• Any options required
Maximum Operating Conditions
Maximum allowable pressure
(vessel design):
Maximum operating pressure:
ASTM A48 Class 30
All stainless steel—304
Hardened chrome steel—17-4PH
Carbon steel
Stainless steel—304
250 psig @ 450°F (17 bar @ 232°C)
Model 880: 150 psig (10 bar)
Model 881-883: 250 psig (17 bar)
For a fully detailed certified drawing, refer to CD #1000.
880 Series Side Inlet, Side Outlet Traps With Integral Strainers. Add suffix “CV” to model number for internal check valve, “T” for thermic vent bucket.
Model No.
880*
881
882
883
in
mm
in
mm
in
mm
in
mm
Pipe Connections
1/2, 3/4
15, 20
1/2, 3/4, 1
15, 20, 25
1/2, 3/4
15, 20
3/4, 1, 1-1/4
20, 25, 32
1/4
6
1/4
6
1/2
15
3/4
20
“A” (Flange Diameter)
3-3/4
95.2
3-3/4
95.2
5-5/8
142.9
7
177.8
“B” (Height)
6-1/16
154
7-1/16
179
9-3/8
244
12-3/8
314
5
127
5
127
6-1/2
165
7-7/8
200
3-7/16
87.3
4-7/16
113
5-3/4
146
7-3/8
187
3/8
9
3/8
9
3/8
9
1/2
15
Test Plug
“C” (Face-to-Face)
“D” (Bottom to CL Inlet)
“E” (Blowdown Connection)
Number of Bolts
Weight lb (kg)
6
5-1/2 (2.5)
6 (2.7)
15-1/2 (7.0)
31 (14.1)
*Cannot be furnished with both thermic vent bucket and check valve.
80
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
880 Series Inverted Bucket Steam Traps
211/811/881/21-DC/81-DC/TVS-81DC
Cast Iron for Horizontal Installation With Integral Strainer
For Pressures to 250 psig (17 bar)...Capacities to 4,400 lb/hr (2,000 kg/hr)
Steam Trapping and
Steam Tracing Equipment
Model 880 Capacity
Model 881 Capacity
212/812/882/22;82TVS-82
Series 213/813/883/23;83;TVS-83DC
Model 882 Capacity
Model 883 Capacity
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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