JIS 5K Angle Screw-Down Check Valves
Our JIS 5K bronze angle screw-down check valve integrates three functions in one corrosion-resistant bronze unit: 90-degree flow direction change, manual shut-off control, and automatic backflow prevention, manufactured to Japanese Industrial Standards for reliable low-pressure service in corrosive environments. Featuring a high-quality bronze body with flanged ends and a precision-machined bronze disc and seat, this space-saving valve offers superior durability compared to cast iron angle check valves in seawater and corrosive fluid applications at pipeline corners.
Overview
Application: Widely installed at 90-degree pipeline intersections on ships, offshore platforms and coastal facilities for seawater systems, cooling water circuits, brine lines and other corrosive fluid applications where cast iron angle check valves would suffer from accelerated corrosion and shortened service life. Also commonly used in desalination plants, chemical processing and Japanese-standard marine engineering projects throughout Southeast Asia, where space is limited and both flow direction change and backflow prevention are required in a single corrosion-resistant valve unit.
Material Specification:
| Part Name | Material | Material Code |
| Body | Bronze | BC6 |
| Disc | Bronze | BC6 |
| Stem | Brass | C3771BD |
Technical Specifications:
| Nominal Pressure | 5K | |
| Hydraulic Inspection | Body | 12 kg |
| Seat | 8 kg | |
Drawing:

Dimensions:
| type | Size | L | D | C | No. | h | t | H | D₂ |
| 5K | 15 | 55 | 80 | 60 | 4 | 12 | 9 | 120 | 80 |
| 20 | 60 | 85 | 65 | 4 | 12 | 10 | 130 | 100 | |
| 25 | 65 | 95 | 75 | 4 | 12 | 10 | 145 | 125 | |
| 32 | 80 | 115 | 90 | 4 | 15 | 12 | 150 | 125 | |
| 40 | 85 | 120 | 95 | 4 | 15 | 12 | 165 | 140 | |
| 50 | 100 | 130 | 105 | 4 | 15 | 14 | 200 | 140 | |
| 65 | 115 | 155 | 130 | 4 | 15 | 14 | 220 | 160 |
