Wheatley/American HVAC

ASME Bladder Type Expansion Tanks

Standard Features

• Removable and replaceable heavy-duty Butyl rubber bladder
• Economical “Partial Acceptance” WPA Series for small installations and chilled water applications
• WFA “Full Acceptance” Series for large expanded fluid volumes
• ASME constructed and stamped; National Board registered
• Standard design pressure 125 psi

Optional Features

• Higher working pressures
• Epoxy-coated covers on full acceptance models
• California sight glass
• Seismic mounting clips

WPS Series Plain Steel Expansion Tanks

Standard Features

• ASME constructed and stamped; National Board registered
• Design pressure
  2″-20″ diameter: 150 psi, 225 psi test
  24″-30″ diameter: 125 psi, 188 psi test
• Leak-proof — each tank hydro-tested
• Accurately-positioned openings
• Manufacturer’s data report for pressure vessels, Form U-1 available

Optional Features

• Complete accessory package — liquid level sight glass, tank fittings, drainer
• Hot dipped galvanized
• Saddles for horizontal installation
• Customized sizes, pressures and materials

ASME Tangential Air Separators

Standard Features

• ASME constructed and stamped; National Board registered
• Tangential design results in smaller unit
• Provides air-free fluid flow which protects against damage and system noise
• Helps prevent waterlogged compression tanks

Optional Features

• Grooved inlet and outlet connections
• Higher working pressures

Valve/TDV

Combination pump discharge valve functioning as a shut-off, check and calibrated flow balancer. Available in sizes 1 1/2″ through 12″ with cast iron body. Threaded or flanged ends.

Standard Features

• Scrader valve metering connections
• Memory stop
• Plug Position indicator and calibrated scale
• Spring-loaded clapper
• Bubble-tight shut-off
• In-line serviceability

Multi-Function Benefits

• Flow regulator valve
• Positive shut-off
• Non-slam check valve
• Convenient gauge connections
• Compact size

Globe-Style Flow Regulating Valve for Circuit Balancing

Standard Features

• Globe-style design for precise balancing and low pressure drop
• Hidden memory protects precise balance setting during on/off operation
• Positive shut-off
• Pre-balancing capability saves time

Optional Features

• Differential pressure meter

Plug Style Balancing Valve

Standard Features

• Sized 2″ through 12″
• Compact design, quarter turn operation
• Easy to read flow indication plate
• Lever standard on 2 1/2″ and 3″
• Maximum working pressure of 175 psi
• Ideal for HVAC hydronic balancing
• Adjustable memory stop standard on 2 1/2″ through 20″
• Schrader style test port connections for balancing

Optional Features

• Gear operator lever available on 4″ through 12″ models
• 2″ through 3″ available with NPT connections
• Grooved connections available

Y-Type Strainer

Standard Features

• Y-type flanged strainers
  • sizes 2″ through 24″
  • ANSI class 125 and 250
• Y-type threaded strainers
  • sizes 1/2″ through 3″
  • cast iron or bronze body

Basket-Type Strainer

Standard Features

• Flanged basket strainers
  • sizes 2″ through 24″
  • cast iron body
  • ANSI class 125 or 250

Standard Features

• Reduces vibration and noise in piping system
• Controls thermal movement, pulsation, misalignment and electrolysis
• Standard construction of chemical resistant elastomers such as Neoprene, Nitrile, and EPDM
• Floating flanges drilled or tapped to mate with 150# companion flanges

Stainless Steel Pump Connectors

Standard Features

• Stainless steel corrugated inner tube and outer shield of wire braid Stainless Steel — 300 Series
• Steel fixed flanges ASA 150 lb.
• Maximum working temperature 850 degrees
• Pressure safety factor of 4:1

Suction Diffusers

The Wheatley suction diffuser is designed to reduce space and installation costs by replacing a long radius elbow, strainer and extended entry pipe on the suction side of the pump. Flow stabilizing vanes reduce turbulence and resulting stress and vibration.

Standard Features

• Direct mounting in horizontal or vertical position
• Separate fine mesh startup screen surrounds each perforated screen

Multi-Function Benefits

• Saves cost and space by replacing 90 degree elbow, strainer and flow stabilizing piping

Heat Exchangers

Standard Features

• ASME constructed and stamped; National Board registered
• U-Tube construction
• Available in 2 or 4 pass construction
• Both steam to liquid and liquid to liquid applications

Optional Features

• Additional materials for heads, tubesheets, baffles, and tie rods
• Optional saddles