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  • Armstrong 4030 End Suction Base Mounted Pumps
  • Armstrong 4270 & 4270 Stock Motor Mounted Pumps
  • Armstrong 4280 Motor Mounted Pumps
  • Armstrong 4300 Vertical In-Line Pumps
  • Armstrong 4360 Vertical In-Line Pumps
  • Armstrong 4380 Vertical In-Line Pumps
  • Armstrong 4600 Horizontal Split-Case Pumps
  • Armstrong 4700 Vertical MultiStage Pumps
  • Armstrong Astro 2 Circulators
  • Armstrong Circulators
  • Armstrong E2 Circulators
  • Armstrong Expansion Tanks
  • Armstrong Flo-Trex Valves
  • Armstrong S&H 3-Piece Circulators
  • Armstrong Suction Guides
  • Bell & Gossett E-80
  • Bell & Gossett ecocirc® XL
  • Electric Motors
  • WEDA Submersible Drainage Pumps
  • wilo Stratos
  • Power Packs
  • Couplers
  • Bearing Assemblies
  • Impellers
  • Mechanical Seals
  • Circulator Pumps
  • Glycol Make Up Unit
  • Headers
  • Flange Sets
  • E-1510 Bell & Gossett
  • Submersible Pumps
  • Ball Bearings
  • Plumbing Supplies
  • Bell & Gossett
  • S.A. Armstrong
  • Water Transfer Pumps
  • Accessories

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    • Design Envelope Compass H Circulators

    Armstrong Design Envelope Compass H Circulators

    The Armstrong Compass H is an energy-efficient Design Envelope variable speed wet rotor circulator for residential heating, cooling and potable water. It replaces existing fixed-speed circulators using popular flange-to-flange dimensions, and its ECM motor and eight operating modes – including the patented Auto mode – can cut operating cost and energy use by 50% or more.

    Features

    • Flow up to 20 USgpm (1.26 L/s), head up to 20 ft (6.1 m)
    • Power input 5 – 45 W, 1 × 115 V
    • Cast iron (closed systems) or stainless steel (open systems, NSF 372) pump body
    • Auto, pressure curves PC1–PC4, fixed speeds I–III and 0–10 VDC control
    • Large wiring chamber with a front-mounted terminal block for faster installation
    • Maximum working pressure 150 psi (10 bar); liquid temperature up to 230°F (110°C)

    Select your model

    Click a model for full specifications, dimensions and documents.

    Model SKU Pump body Connection A Weight
    Compass H 20-20 CI COMPASS-H20-20-CI Cast iron (closed systems) Flanged – (2) ½" dia. bolt holes 6.50" 8.0 lb
    Compass H 20-20 SS COMPASS-H20-20-SS Stainless steel (open systems) Flanged – (2) ½" dia. bolt holes 6.50" 8.0 lb
    Compass H 20-20 SSU COMPASS-H20-20-SSU Stainless steel (open systems) 1¼" union 6.00" 8.0 lb

    Dimensions and weights are for reference only.

    Design & Submittals

    Warranty

    Covered by the Armstrong Fluid Technology manufacturer's warranty.

    Installation, Maintenance, Parts Kits & Manuals

    Need help choosing a circulator? call (416) 236-2338 or email sales@bramhambros.com

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