Griswold Controls - Balancing and Control Valves
Griswold Controls Automatic Flow Limiting Valves
Balancing and Control Valves
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The Griswold Controls Automatic Flow Limiting Valve is used in many applications to maintain balance in an 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 control valve. Therefore the flow is controlled to within +/- 5% of the designed flow.
Recommended Applications
- Baseboards/In-Cabinets and Terminals: Smaller valves like the Isolator R or Isolator Y, and K Valves. (Sizes 1/2″–3″)
- Air Handling Units: Larger Isolator R, Uni-Flange, and Wafers offer precise control for larger applications. (Sizes 1-1/2″–6″)
- Chillers, Towers & Pumps: For higher flow applications, use Wafers, Steel Flange, Grooved End or Weld End with multiple cartridges. (Sizes 3″–24″)
Griswold Controls Automizer® and Balance Zone Valves
Balancing and Control Valves
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Automatic Flow Limiting & Temperature Control
Multiple features in one valve. Most coils have a temperature control and a balancing or flow-limiting valve. Having two valves means dealing with two manufacturers and two distributors.
Griswold Controls provides a single source for both valves, for fewer hassles and fewer headaches. And for an added feature, the Automizer® has an integrated isolation ball valve, which 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. (Sizes 1/2″–2″)
Griswold Controls Piping Components and Accessories
Balancing and Control Valves
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Griswold Controls offers piping components like isolation ball valves, unions, and Y-strainers that can be used to create custom coil piping packages.
They also offer larger accessories components like flanges, flange adapters and tees to build larger air handling unit packages, plus combination air vent and pressure temperature test valves, automatic air vents, pressure temperature test valves, hoses, drain valves, and more.
- 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, PTs, drain valves, air vents, hoses)
Griswold Controls Pressure Independent Control Valves
Balancing and Control Valves
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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 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®
Balancing and Control Valves
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Manual Balancing Valves and 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. The QuickDisc valve uses a ceramic disc to control the flow and the QuickSet valve uses a ball to control the flow.
- QuickSet & Metering Station (Sizes 1/2″–2″)
- QuickSet and Metering Stations (Sizes 2-1/2″–18″)
- QuickDisc (Sizes 1/2”–3/4”)
Griswold Controls Unimizer®
Balancing and Control Valves
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2 and 3-Way Actuated Ball Valves
The Unimizer® eliminates inaccuracy in ball valves thanks to 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. (Sizes 1/2″–6″)