Automatic Flow Limiting Valves

Isolator R, Isolator Y, K Valve, Mini, Combo, Copper Sweat, Threaded Flange, Uni-Flange, Steel Flange, Grooved End, & Wafers-Class 150/300 Sizes: 1/2″ – 24″ 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 […]


Manual Balance Valves

QuickDisc™ and QuickSet® Manual Balance Valves & Metering Stations Sizes: 1/2″ – 20″ 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 […]


2 Way & 3 Way Actuated Ball Valves

Unimizer® 2 & 3 Way Actuated Ball Valves Sizes 1/2″ – 6″ Accuracy The Unimizer® eliminates inaccuracy in ball valves. This is made possible with the technology of the Griswold parabolic flow OPTIMIZER®, a device inserted into the ball to achieve Equal Percentage Control Characteristics. Lower Cv Ratings Why choose a ball valve over a […]


Pressure Independent Valves

PIC-V, MVP®, Pinnacle and PIM Valves Sizes: 1/2″ – 10″ 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 […]


Combination Actuated Ball Valve and Flow Limiting Valve

Automizer® and Balance Zone Automatic Flow Limiting & Temperature Control Sizes: 1/2″ – 2″ 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 […]


Coil Piping Packages/Hose Kits

Standard Coil Piping Packages & Coil Hookups Griswold Coil Piping Packages are pre-assembled piping systems that save time and reduce cost. We offer fully assembled coil hook ups that can be readily connected to your system with as little as 4 connections. No more field assembled components, we do it all for you. Griswold Controls […]


Piping Components and Accessories

Isolator U, Isolator B, Isolator S, Y-Strainers, Flanges 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 […]