Walworth Check Valves
Out of stock
SKU
00001497
Product Shipping Subject to Factory Availability Need Specifications? See PDF Section Below.
Walworth Check Valves
Walworth Check Valves - Overview
Walworth Cast Steel Swing Check Valves have straight-through flow paths and readily opening discs to provide very low friction loss.
Points to Remember About Check Valves
1. The function of check valves is to stop reversal of flow automatically and promptly. Usually it is desirable that they be supplemented by gate, globe, or other valves for manual control of the fluid in the line.
2 Check valves must be sized to meet the flow conditions. Oversizing of a check valve will result in increased wear and improper operation.
3. Check valves should be installed so that the force of gravity will assist in closing and holding the disc or clapper on the seats.
4. Check valves are one-way valves and should be installed so that the line pressure is under the disc.
5. Swing check valves should not be used in vertical pipe lines handling liquids at high heads because severe water hammer may result from reversal of flow.
Walworth Cast Steel Swing Check Valves have straight-through flow paths and readily opening discs to provide very low friction loss.
Points to Remember About Check Valves
1. The function of check valves is to stop reversal of flow automatically and promptly. Usually it is desirable that they be supplemented by gate, globe, or other valves for manual control of the fluid in the line.
2 Check valves must be sized to meet the flow conditions. Oversizing of a check valve will result in increased wear and improper operation.
3. Check valves should be installed so that the force of gravity will assist in closing and holding the disc or clapper on the seats.
4. Check valves are one-way valves and should be installed so that the line pressure is under the disc.
5. Swing check valves should not be used in vertical pipe lines handling liquids at high heads because severe water hammer may result from reversal of flow.
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