Armstrong 2000 Series all-stainless steel inverted bucket steam traps combine savings in three important areas: energy, installation, and replacement. With the 2000 Series’ 360° universal connector, you can install inverted bucket efficiency and long service life in any piping configuration with little or no repiping. You get the reliability of the inverted bucket operating principle, plus all the benefits of an all-stainless steel construction.

The 360° universal connector provides quick, easy in-line replacement along with all the proven advantages of inverted bucket operation. It is available with a standard connector or an optional IS-2 integral strainer connector.

Features and Benefits

• Wear and Corrosion Resistance: The free-floating guided lever mechanism prevents excessive wear due to friction. All-stainless steel construction provides years of durable, corrosion-free service.
• Virtually No Steam Loss: Steam does not reach the water-sealed discharge valve.
• Dependable Operation: The simple direct operation of the bucket eliminates sticking, binding, or clogging. As the valve opens, air and condensate are trapped and removed.
• Continuous Air and CO2 Venting: The vent in the top of the bucket provides continuous air and CO2 venting with no loss of steam temperature, threat of air binding, or steam loss.
• Resistance to Damage from Water Hammer: The trap is designed to prevent the open bucket or float from collapsing during water hammering.
• Excellent Operation Against Back Pressure: Since the trap operation is governed by the difference in density of steam and water, back pressure in the return line will have no effect on the trap operation during condensate discharge.
• Freeze Resistant: The ability to withstand freeze-ups without damage.

Maximum Operating Conditions

Maximum Allowable Pressure (Vessel Design):

• Model 2010, 2011: 400 psig @ 800°F (28 bar @ 427°C)
• Model 2022, 2022C: 650 psig @ 600°F (45 bar @ 315°C); 627 psig @ 700°F (43 bar @ 371°C); 600 psig @ 800°F (41 bar @ 427°C)

Maximum Operating Pressure:

• Model 2010: 200 psig (14 bar)
• Model 2011: 400 psig (28 bar)
• Model 2022, 2022C: 650 psig (45 bar)

Materials

Component	Material
Body	ASTM A240 Grade 304L Stainless Steel
Internals	All stainless steel—304
Valve and Seat	Hardened chrome steel—17-4PH or Titanium
Connector Body (Std & IS-2)	Stainless steel—304
Flange	ASTM A105 Zinc plated (or ASTM A-105N)
Connector Gasket	Graphite + 304 Stainless Steel

Options and Connector Styles

360° Connector Styles:

• Standard connector
• IS-2 connector with integral strainer
• IS-2 connector with integral strainer with blowdown valve
• TVS-4000 connector with strainer, inlet/outlet isolation valve, test and blow-down valve (for 2022C)

Options:

• Insu-Pak™ insulation for Models 2010/2011
• Stainless steel pop drain for Models 2011/2022 (for freeze protection)
• Probe connection for Models 2011/2022
• Wiggle wire

Dimensions and Weights

INFO

Allow 2-1/2" clearance for Trap installation and removal for all connectors.

2000 Series Traps With Standard Connector	2010	2011	2022
Pipe Connections (in)	1/2, 3/4	1/2, 3/4	1/2, 3/4
"A" (Diameter) (in)	2-11/16	2-11/16	3-7/8
"B" (Height) (in)	6	6-15/16	8-11/16
"C" (Face to Face) (in)	2-3/8	2-3/8	2-3/8
Weight lb (kg)	4-1/4 (1.9)	4-1/2 (2.0)	7 (3)

Series 2010-2022 With IS-2 Connector	2010	2011	2022
Pipe Connections (in)	1/2, 3/4, 1	1/2, 3/4, 1	1/2, 3/4, 1
"A" (Diameter) (in)	2-11/16	2-11/16	3-7/8
"B" (Height) (in)*	6	6-15/16	8-11/16
"C" (Face to Face) (in)	3-1/2 (1/2", 3/4"), 4 (1")	3-1/2 (1/2", 3/4"), 4 (1")	3-1/2 (1/2", 3/4"), 4 (1")
Weight lb (kg)	4-3/4 (2.2) to 5-1/4 (2.4)	5 (2.3) to 5-1/2 (2.5)	7 (3)

(Add 1/2" to "B" and "D" dimensions when optional probe connection is required.)

Capacities

TIP

Because the orifice is located at the top, inverted bucket steam traps handle dirt and scale better than other types of traps. However, in applications where extremely dirty conditions exist, care should be exercised in the use of all types of restricted-orifice, reduced-capacity traps.

Model 2010 Capacity

Model 2011 Capacity

Model 2022 Capacity

Installation and Maintenance

Steam trap installation is critical from both a performance and maintenance aspect. Installation of the trap is simplified if you follow these guidelines:

1. Before installing the trap, clean out the line by blowing down at full steam pressure. Blowdown any strainers ahead of the trap.
2. Install the trap so that it is ACCESSIBLE for inspection and repair, BELOW the drip point whenever possible, and CLOSE to the vertical drip leg.
3. Install strainers ahead of traps if specified or when dirt conditions warrant their use.
4. Use pipe dope or Teflon™ tape sparingly on male threads only. Leave the end thread exposed to avoid introducing the sealant into the system.
5. For proper operation, the trap body must be upright in a "vertical to the eye" position.

WARNING

Use of wrenching surfaces other than specified on the Series 2000 connector can result in damage to the gasket seating area. Use crosshatched area only for wrenching surface.

6. Observe pressure limitations stated on the trap label. Do not exceed the maximum differential pressure (difference between inlet and outlet pressure) marked on the trap label and stamped on the trap. Exceeding the maximum differential pressure will cause the trap to lock shut.
7. Closed Return Systems: It is convenient for replacement and trap testing purposes to install an isolation valve on each side of the trap with a test valve between the trap outlet and the downstream isolation valve.
8. All inverted bucket type steam traps require that a water seal be established inside the trap. When placing in operation, open the inlet valve slowly so that the trap can catch its prime.

Maintenance: When the steam trap is suspected of malfunctioning, it can be checked by observing the discharge of the trap. Inverted bucket traps discharge intermittently except under very low load conditions. If the trap is locked shut, check the pressure differential to verify that the maximum differential pressure is not exceeded. If the trap is blowing live steam, close the inlet valve for a few minutes, then gradually open so that the trap can catch its prime. Do not confuse the discharge of flash steam with live steam loss.