MIL-DTL-24630 Valves, Check, In-Line, For Hydraulic Fluid And Lubricating Oil Fluid, General Specification ForThis specification covers the requirements for in-line check valves for use in hydraulic fluid and lubricating oil fluid systems of naval ships operating up to a maximum pressure of 3,000 pounds per square inch \(lb/in┬▓\).

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14

MIL-DTL-24630A(SH)

3.7.1 Marking method.

3.7.1.1 Information. Marking shall be clearly and permanently applied on the valve body or it shall be on

severe service identification plates in accordance with MIL-DTL-15024 and MIL-P-15024/5.

3.7.1.2 Symbol. Two arrows showing direction of free flow along with the word "Flow" shall be located on the

valve body at approximately 180-degree increments.

3.8 Radiography. Valves larger than 2-inch nominal pipe size (NPS) that are of cast material shall be

radiographed in accordance with S9074-AR-GIB-010/278.

3.9 Workmanship. The valve body and internal parts shall be free of contaminants such as lint, dirt, shavings

and burrs, sharp edges, or any other damage or defect that could adversely affect the performance of the part for the

purpose intended.

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:

Qualification inspection (see 4.2).

Conformance inspection (see 4.3).

4.2 Qualification inspection. Qualification inspection shall be conducted at a laboratory acceptable to

NAVSEA. Qualification inspection shall consist of the inspections shown in table II as outlined in 4.2.1.