| Like all Griswold flow control valves, the Uni-Flange features easily accessible flow cartridges, which means mainte- nance or inspection of the valve can be completed without having to break any piping connections. The valve hous- es up to three 2lr stainless steel flow cartridges, allowing for a total maximum flow rate of 171 gpm at 2-32 PSID, encompassing nominal ASHRAE recommended flow rates. |
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| VERSATILITY |
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• Precision 100% Stainless Steel Flow Control Cartridge ±5% Accuracy
• Ductile Iron Body for HVAC Strength & Pressure/Temp Rating
• Y-Pattern Housing Design Allows Inspection or Removal of Cartridge Without Breaking Piping Connections
• Lug Pattern Flanged Butterfly Valve or Flanged Ball Valve Available for Isolation
• Flanged Ends for Mounting to 2lu, 2-1/2ln, 3l1 ANSI 150 lb. Flanged Piping System *1
• Supplied with Two Pressure/Temperature Test Valves
• Line Transition Possible Through Uni-Flange Body
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| AIR HANDLING PRODUCT GUIDE |
| LINE SIZE |
ASHRAE FLOW
RECOMMENDATION (GPM)
@ 4 FT/100 FT HEAD LOSS |
VELOCITY
(FEET PER
SECOND) |
TONS *2
COOLING @
(2.5 GPM/TON) |
MBH *2
HEATING @
(20 MBH/GPM) |
| 1-1/2" |
27 |
4.0 |
10 |
540 |
| 2" |
40 |
3.8 |
16 |
800 |
| IR-IS/IB-IY FLOW |
@ 57 |
5.5(2"LINE) |
23 |
1114 |
| 2" |
40 |
3.8 |
16 |
800 |
| 2-1/2" |
75 |
5.0 |
30 |
1500 |
| UNI-FLANGE FLOW |
@ 171 |
7.5(3"LINE) |
90 |
3400 |
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*1 2lN size will use a 2-1/2lA reducing flange as shown in drawing next page.
*2 Approximate values based on typical air and water design temperatures and 4 row coils
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