Lowest Pressure Drop

US Valve's Elastomer Hinge Design = Lowest Pressure Drop

Our Full Port Check Valves provide more flow and lower pressure drops than conventional check valves. Our elastomer hinge check valve design takes performance to an entirely new level by eliminating the restrictive valve seat and substantially increasing the valve’s open area and flow coefficient (Cv). The resulting flow is more laminar, with lower pressure loss and reduced turbulence. It also improves valve life and reliability. Keeping pressure loss low is always important, but particularly so when handling low pressure air and gases.

Non-restrictive Flow PathElastomer Hinge Design Eliminates Restrictive Seat

Dual disc check valves are the clear choice for many piping engineers because of their proven reliability, ease of installation and low ∆P. Now, they are available in a full port design that dramatically improves performance.  They are ideal for application in vacuum pumps, compressed air and gas systems as well as in water systems where low head loss and elimination of water hammer are desirable.

 

US Valve Flow Coefficients (Cv) vs. Conventional Design

size US Valve Full Port Dual Disc Conventional Duo Disc Design Conventional Swing Check Design Conventional Lift Check Valve
1 37 - 22 17
1 1/4 65 - 39 -
1 1/2 83 - 55 35
2 145 75 65 63
2 1/2 350 95 90 100
3 590 190 135 148
4 920 375 215 260
5 1400 480 680 415
6 2800 820 1270 620
8 4900 1590 2350 1030
10 7200 2900 3850 1630
12 9000 500 4750 2370
14 11000 5900 7400 3500
16 13000 8700 9550 5100
18 15000 10900 13000 6400
20 28000 14300 22000 7700
24 39000 23000 - 11100
30 58000 37000 - -

Check Valve Flow Coefficient Comparisons (Cv) – GPM of water @ 60°F and 1 PSI Pressure Drop

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