Heavy-Duty Deep Well Check Valves
U.S. Valve’s Techno Check™ Heavy-duty Deep Well Check Valves are a good solution to overcoming water hammers and resolving your submersible pumping systems’ check valve problems. The Techno Deep Well Checks Valve’s exceptional response to quick starting water pumps and exceptionally low-pressure drop distinguishes it as a superior valve for water well service.
Specially designed for deep well applications, Techno’s standard Female Threaded Check Valves are rated for 450 psi service or depths of 1000 ft. Techno Male-Threaded and Techno Full-Flanged Check Valves are also available. Inherent features include a large free area with resulting 
low-pressure loss, high integrity sealing from the continuous seal design, reduced noise and wear by the elimination of metal-to-metal rotating parts, and stable operation under a wider range of flow rates.
- Full Port - Provides increased flow with reduced pressure loss
- Valve Plates - Offer metal-to-metal support and reduced travel
- Sealing Member - Provides tight shutoff and prolonged cycle life
- Hinge Post - Precision air foil design offers streamlined flow
- Spring
Full Port, Lowest Pressure Drop
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). Our Full Port Ball Valves offer open flow paths, thus reducing turbulence and noise. 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.
Features & Benefits
Our Valves offer some impressive advantages ove competitive designs.
- Lowest Pressure Drop in the Industry
- Available in 316 SS, Carbon Steel, Cast Iron, Brass, Aluminum
- Most Carbon Steel Valves include Zinc DiChromate Plating
- Male & Female NPT, Wafer, Grooved & Plain End, API, etc
- Easy to Install, Quiet Operation
- USA Content, ARRA Compliant
- Our Check Valves Alleviate Water Hammer
- Every Valve is Tested Prior to Shipment
Fast Delivery
We maintain an extensive inventory of valves, parts, and components in a wide variety of materials so we can respond to your needs quickly. Valves are typically assembled and tested within 1 to 2 days after receipt of an order.
NSF Certified Check Valves
U.S Valve is proud to offer a select variety of NSF-certified check valves for your convenience. In order to meet the requirements of NSF 61 and NSF 371, our team is now offering lead-free check valves which are safe to use in drinking water and other well applications.
To learn more about our selection of lead-free NSF-certified check valves, click here.
Engineering Data
Engineering data, including available materials, dimensions, exploded view, part numbers and descriptions, standard models, valve Cv, pressure loss curves, and other information is available in our brochures. Visit our product pages at the links below.
Techno Check™ Flow Coefficients (Cv) vs. Conventional Designs
|
Size |
Techno Check™ 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 |
4500 |
4750 |
2370 |
Check Valve Flow Coefficient Comparisons (Cv) — GPM of water @ 60°F and 1 PSI Pressure Drop