JIS 16K Angle Screw-Down Check Valves
Our JIS 16K bronze angle screw-down check valve is engineered to Japanese Industrial Standards with a heavy-duty bronze body and reinforced bonnet, integrating three high-pressure functions in one corrosion-resistant unit: 90-degree flow direction change, manual shut-off control, and automatic backflow prevention at operating pressures up to 1.6MPa. Built with thicker wall construction, larger flanges with more bolt holes, and a precision-machined bronze disc and seat compared to 5K class valves, this robust triple-function bronze valve delivers dependable high-pressure sealing and exceptional corrosion resistance in demanding seawater and corrosive pipeline corner applications.
Overview
Application: Primarily specified at high-pressure 90-degree pipeline intersections on ships, offshore platforms and marine facilities for seawater systems, high-pressure hydraulic circuits, pump discharge lines and corrosive fluid applications where 5K class bronze angle check valves cannot meet system pressure requirements. Also widely used in coastal power plants, desalination facilities and Japanese-standard marine engineering projects throughout Southeast Asia requiring heavy-duty, corrosion-resistant valves that combine high-pressure direction change, flow control and backflow prevention in a single durable bronze unit.
Material Specification:
| Part Name | Material | Material Code |
| Body | Bronze | BC6 |
| Disc | Bronze | BC6 |
| Stem | Brass | C3771BD |
Technical Specifications:
| Nominal Pressure | 16K | |
| Hydraulic Inspection | Body | 38 kg |
| Seat | 23 kg | |
Drawing:

Dimensions:
| Type | Size | L | D | C | No. | h | t | H | D₂ |
| 16K | 15 | 70 | 95 | 70 | 4 | 15 | 12 | 120 | 80 |
| 20 | 75 | 100 | 75 | 4 | 15 | 14 | 130 | 100 | |
| 25 | 85 | 125 | 90 | 4 | 19 | 14 | 145 | 125 | |
| 32 | 95 | 135 | 100 | 4 | 19 | 16 | 150 | 125 | |
| 40 | 100 | 140 | 105 | 4 | 19 | 16 | 165 | 140 |
