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PSI / Temperature Rating: 150 PSI / 275º F
Cartridge:                             AISI Type 304 stainless steel
                                               AISI Type 17-7 PH stainless steel spring
Body Material:                     Ductile Iron ASTM A536-80
                                               Class 50-40-18
Butterfly Valve:                    Iron ASTM 126-61T Class 30, NBR
                                               Seat, ductile disc, stainless steel stem
End Connections:               ANSI 150 Lb. Flanges 2-1/2” and 3”
Seals:                                    EPDM O-Rings
Body Tappings:                   1/4" NPT with P/T test valves
Assembly:                             Valve comes fully assembled
Options:                                Extended P/Ts 

Griswold Controls

Uni-Flange Automatic Flow Control Valves



​Griswold

Griswold Controls is the leader in HVAC technology for flow control. Griswold Controls offers flow control solutions that are innovative, versatile, and fit the applications. Griswold Controls continues to develop new, innovative products for terminal units, heat pumps, air handlers, and equipment room installations.

PSI / Temperature Rating: 150 PSI / 275º F
Cartridge:                             AISI Type 304 stainless steel
                                               AISI Type 17-7 PH stainless steel spring
Body Material:                     Ductile Iron ASTM A536-80
                                               Class 50-40-18
End Connections:                ANSI 150 Lb. Flanges 2-1/2 and 3 Inch
Seals:                                     EPDM O-Rings
Body Tappings:                    1/4" NPT with P/T test valves
Assembly:                             Valve comes fully assembled
Options:                                Extended P/Ts

Griswold Controls logo

With Butterfly Handle

UNI-FLANGE AUTOMATIC FLOW CONTROL


Sizes: 2 1/2" - 3"

The Griswold Automatic Flow Control Valve is used in many different applications, mostly in the HVAC industry to maintain balance in a HVAC System. The Automatic Flow Control has a spring loaded cartridge that dynamically absorbs pressure fluctuations resulting from changing flow 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.

Automatic Flow Controls do not require any additional balancing as do Manual Balancing Valves, therefore they reduce labor costs from not having to balance and rebalance the valves.

UNI-FLANGE is available with a wide range of flows and PSID ranges, and are the perfect choice for large air handling units. The valves offer easily accessible flow control cartridges, accessible without breaking piping connections, so exchange of the cartridge for flow changes can be made as required. 

          Steve Lewis LLC dba

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361-882-2233

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