STEAM TRAPS & PIPELINE ACCESSORIES

Inverted Bucket Steam Traps

WORKING PRINCIPLE

Inverted bucket steam traps work on buoyancy principle. As the name says, the mechanism consists of an inverted bucket with small hole for air vent on top of it, bucket connected to a valve by a lever.

  • At the initial position the inverted bucket stays in lowermost position, once condensate enters the steam trap it flows through the bottom of the bucket filling the body, flows through the outlet.
  • Once the steam enters the trap, it is caught inside the bucket, it makes the bucket buoyant. The bucket then raises and shuts the valve.
  • The trap remains shut till the steam condenses reducing the buoyancy of the bucket, the bucket then sink, pulls off valve and the condensate discharges through the outlet.

FEATURES

  • Discharge condensate intermittently at steam temperature
  • Pennant inverted bucket steam traps are designed to withstand higher pressures and superheated steam.
  • These traps can operate well against back pressures.
  • Resistance to damage against freezing.
  • Can withstand water hammer.
  • The valve and valve seat are hardened by a special induction hardening process to withstand continuous, prolonged operation.

LIMITATIONS

  • Water seal must always be maintained to ensure proper operation
  • Cannot discharge condensate as it forms. There is always upstream condensate built-up.
  • If bucket vent is blocked, the trap gets locked.
  • Trap must be installed with Bucket in vertical direction to allow free operation.
  • The trap should be installed below the equipment to be drained, otherwise the prime may be lost affecting the trap operation.
  • Sudden inlet pressure reduction or Superheated steam may damage water prime.

TYPICAL APPLICATIONS OF INVERTED BUCKET STEAM TRAPS

  • Heating coils
  • Hot water heaters
  • Steam separators
  • Sterilizers
  • Autoclaves
  • Dryers
  • Dehumidifiers 
  • Heat exchangers

MATERIAL

NO PART MATERIAL QTY.
1. BODY CAST IRON 01
2. COVER CAST IRON 01
3. BUCKET ASSLY AISI 304 with CS reinforcing ring 01
4. VALVE SEAT AISI 410/ 420 01
5. VALVE PIN 01
6. BRACKET AISI 304 01
7. LEVER AISI 304 01
8. PLUG CARBON STEEL 01
9. GASKET Non CAF 01
10. BOLT High Tensile
11. NUT High Tensile
12. PIPE CARBON STEEL 01

PT21

Inverted Bucket Steam Trap. Cast iron construction. SS Internals. Vertical configuration. End conns.: Screwed NPT / BSPT / BSP

Imperial

PMA TMA PMO TMO Capacity Range (lbs/hr) Size
250 psig @ 38 degF 428 degF 250 psig @ all operating temperatures 428 degF 175 ~7050 ½” ¾”1”1 ½”

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
17.5 / 220 350 530 2500 2600 DN15 DN20 DN25 DN40

PT22

Inverted Bucket Steam Trap. Cast iron construction. SS Internals. Horizontal configuration. End conns.: Screwed NPT / BSPT / BSP

Imperial

PMA TMA PMO TMO Capacity Range (lbs/hr) Size
250 psig @ 38 degF 428 degF 250 psig @ all operating temperatures 428 degF 88 ~ 660 ½” ¾”

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
10.5/ 220 265 DN15, 20

PT23

Inverted Bucket Steam Trap with integral strainer. Cast iron construction. SS internals. Horizontal configuration. End conns.: Screwed NPT / BSPT / BSP

Imperial

PMA TMA PMO TMO Capacity Range (lbs/hr) Size
250 psig @ 38 degF 428 degF 250 psig @ all operating temperatures 428 degF 88 ~ 1960 ½” ¾” 1

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
11 / 220
12.5 / 220
14 / 220
280
390
565
DN15
DN20
DN25
PT23 / PT23L

PT23L

Inverted Bucket Steam Trap with integral strainer. Cast iron construction. SS internals. Horizontal configuration. End conns.: Screwed NPT / BSPT / BSP

Imperial

PMA TMA PMO TMO Capacity Range (lbs/hr) Size
250 psig @ 38 degF 428 degF 250 psig @ all operating temperatures 428 degF 88 ~ 660 ¾” 1”

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
10 / 220 260 DN20,25

PT24

Inverted Bucket Steam Trap for high pressure steam systems. Vertical configuration. Cast Steel construction. SS internals. End conns.: SW / FL

Imperial

PMA TMA PMO TMO Capacity Range (lbs/hr) Size
925 psig @ 38 degF 950 degF 925 psig @ all operating temperatures 950 degF 200 ~ 22025 ½”,¾”, ¾”, 1”, 1 ¼”, 1 ½”, 2”

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
65 / 510 3860 DN15, 20, 25, 40, 50

PT25

Inverted Bucket Steam Trap with inbuilt strainer. Cast Steel construction. SS Internals, Horizontal configuration. End conns.: Screwed NPT / BSPT / BSP / SW / FL

Imperial

PMA TMA PMO TMO Capacity Range (lbs/hr) Size
350 psig @ 38 degF 800 degF 350 psig @ all operating temperatures 800 degF 175 ~ 9690 ½”,¾”, 1”
350 psig @ 38 degF 650 degF 350 psig @ all operating temperatures 650 degF 2205 ~ 23790 1½”,2”

Metric

PMO (bar) TMA (ºC) Capacity at PMO (kg/hr) Size
25 / 426 430 1800 2500 10800 DN10,25 DN20,25 DN25 DN40,50
Menu