Griswold Controls Automatic Flow Limiting Valves (Sizes ½-20)

Valves

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Griswold Controls - Automatic Flow Limiting Valves

The Griswold Controls Automatic Flow Limiting Valve is used in many different applications, mostly in the HVAC industry to maintain balance in a HVAC System. The stainless steel flow limiting cartridge has a spring loaded cup that dynamically absorbs pressure fluctuations resulting from changing system conditions due to varying heating/cooling loads. These fluctuations in pressure, within a given pressure differential control range, do not change the flow through the valve, therefore the flow is controlled to within +/- 5% of the designed flow.

Griswold Controls Automizer® and Balance Zone Valves (Sizes 1/2″ – 2″)

Valves

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Griswold Controls - Automizer and Balancing Zone Values

Automatic Flow Limiting & Temperature Control
Multiple Features in One Valve – Most coils have a temperature control valve and a balancing or flow limiting valve. Two valves means two manufacturers and two distributors. Griswold Controls provides a single source for both valves, for less hassles and less headaches. And for an added feature, the Automizer® has an integrated isolation ball valve so it is the entire return side of the coil in one valve. Automizer® and Balance Zone valves are ideal for schools, office buildings, VAV boxes, fan coil units, heat pump installations, and terminal boxes.

Griswold Controls Piping Components & Accessories (Sizes 1/4″-8″)

Valves

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Griswold Controls - Piping Components & Accessories

Griswold Controls offers piping components like isolation ball valves, unions, and y-strainers that can be used to create custom coil piping packages. Griswold Controls has expanded our offering of these components to include larger accessories components like flanges, flange adapters and tees to build larger air handling unit packages. Griswold Controls also offers accessories like combination air vent and pressure temperature test valves, automatic air vents, pressure temperature test valves, hoses and drain valves.

  • 3/8″- 3″ Isolator®U (Ported Unions)
  • 1/2″ – 2″ Isolator®B (Union Ball Valve)
  • 1/2″ – 3″ Isolator®S (Isolation Ball Valve and Y-Strainer Combination)
  • 1/2″- 2″ Y-Strainer/BV (Y-Strainers with Ball Valves)
  • 11-1/2″ – 8″ Y-Strainer/BFV (Large Y-Strainers with Butterfly Valve)
  • 1-1/2″ – 8″ Flange Accessories (Flanges and Flanged Tees)
  • 1/4″ – 2″ – Accessories (CPTA, PT’s, Drain Valves, Air Vents, Hoses)

Griswold Controls Pressure Independent Control Valves (Sizes 1/2″ – 6″)

Valves

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Griswold Controls - Pressure Independent Control Valves

Griswold Controls’ PIC-V®, MVP®, Pinnacle and PIM valves are Pressure Independent Control Valves. Pressure independent (PI) valves can help reduce energy costs and increase occupant comfort. PI control valves are designed to replace the conventional 2 way control valve and balancing valve pair, installed at heating and cooling coils in buildings.

  • PIC-V®, Space Saver PIC-V® – Sizes: 1/2″ – 3″
  • MVP® – Sizes: 2-1/2″ – 6″
  • PIM – Sizes: 3″-6″

Griswold Controls QuickDisc™ and QuickSet® (Sizes 1/2″ – 18″)

Valves

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Griswold Controls - QuickDisc and QuickSet

Manual Balancing Valves & Metering Stations
The QuickDisc and QuickSet are manual balance valves that include brass venturi inserts for flow measurement and graduated memory stops for flow setting. Valves are available with multiple end connection options including a union end connections. The QuickDisc valve uses a ceramic disc to control the flow and the QuickSet valves uses a ball to control the flow.

  • QuickSet & Metering Station 1/2″ – 2″
  • QuickSet and Metering Stations 2-1/2″ – 18″
  • QuickDisc ½”-3/4”

Griswold Controls Unimizer® (Sizes 1/2″ – 6″)

Valves

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Griswold Controls - Unimizer®

2 & 3 Way Actuated Ball Valves
The Unimizer® eliminates inaccuracy in ball valves. This is made possible with the technology of the Griswold Controls parabolic flow OPTIMIZER®, a device inserted into the ball to achieve Equal Percentage Control Characteristics. With the Unimizer® you can achieve the low Cv ratings of a globe valve at the low price of a ball valve. The Unimizer® is available in Female or Sweat threaded end connections. Griswold Controls’ Patent Pending 3 Way Ball Many manufacturers settle for providing non-equal percentage control to the coil, or they achieve equal percentage control by using a costly, custom programmed actuator.