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Armstrong International series 811 inverted bucket steam trap with thermic vent and internal check valve. 1/2" D501855TCV 15 PSIG, 1/2" C5297-19TCV 30 PSIG, 1/2" C5297-20TCV 70 PSIG, 1/2" C5297-21TCV 125 PSIG, 1/2" C5297-22TCV 200 PSIG, 1/2" C5297-23TCV 250 PSIG.
Armstrong International series 811 inverted bucket steam trap with internal check valve. 3/4" C5297-24CV 15 PSIG, 3/4" C5297-25CV 30 PSIG, 3/4" C5297-26CV 70 PSIG, 3/4" C5297-27CV 125 PSIG, 3/4" C5297-28CV 200 PSIG, 3/4" C5297-29CV 250 PSIG.
Armstrong International series 811 inverted bucket steam trap with internal check valve. 1" C5297-31CV 15 PSIG, 1" C5297-64CV 250 PSIG.

Armstrong 811 Inverted Bucket Steam Trap With Internal Check Valve

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The Armstrong series 811 inverted bucket steam trap with internal check valve is an economical solution for steam process equipment. Best suited for high pressure drip locations and laundry equipment, after initial prime air and condensate is vented from the orifice after condensate accumulation causes the bucket to fall. All Armstrong inverted bucket steam traps are repairable for even bigger operational savings.

The series 811 is suitable for pressure ratings up to 250 PSI and condensate flows up to 1,050 lbs/hr.

  • Trap has a 5" face to face dimension
  • Available in sizes 1/2", 3/4", and 1"
  • Available in pressure ratings 15 PSI, 30 PSI, 70 PSI, 125 PSI, 200 PSI, 250 PSI
  • Optional internal check valve to address sudden drops in steam supply pressure and to address back pressure in the condensate return line
  • Armstrong Series 811 Inverted Bucket Steam Trap Specification


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Armstrong International series 811 inverted bucket steam trap. 1/2" D501855 15 PSIG, 1/2" C5297-19 30 PSIG, 1/2" C5297-20 70 PSIG, 1/2" C5297-21 125 PSIG, 1/2" C5297-22 200 PSIG, 1/2" C5297-23 250 PSIG.

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Armstrong International series 811 inverted bucket steam trap with thermic vent and internal check valve. 1/2" D501855TCV 15 PSIG, 1/2" C5297-19TCV 30 PSIG, 1/2" C5297-20TCV 70 PSIG, 1/2" C5297-21TCV 125 PSIG, 1/2" C5297-22TCV 200 PSIG, 1/2" C5297-23TCV 250 PSIG.

Armstrong 811 Inverted Bucket Steam Trap With Thermic Vent