JIS F7340C Marine Cast Steel SDNR Air Valve – 30K High Pressure Stop Check Valve for Marine Air Systems
Overview
Our JIS F7340C Marine Cast Steel SDNR Air Valve is a high-performance stop check non-return valve specifically engineered for compressed air and gas systems in marine environments. Manufactured to exact Japanese Industrial Standard F7340C specifications, this 30K high-pressure rated valve features robust cast steel construction with stainless steel or bronze trim, providing exceptional reliability in demanding shipboard air systems. Compliant with JIS B2220 flange dimensions, it ensures perfect integration into marine piping networks for both new construction and vessel repair projects.
Key Features & Benefits
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JIS F7340C Standard Compliance: Precision-engineered to Japanese Industrial Standard specifications for marine air service
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30K High Pressure Rating: Suitable for demanding high-pressure air applications (approximately 300 psi)
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Dual-Function Design: Combines stop valve and check valve functionality in a single unit
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Premium Material Construction: Cast steel body with stainless steel (SUS) or bronze trim options
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JIS B2220 Flange Compatibility: Standard flange dimensions ensure easy installation and maintenance
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Air & Gas Service Optimized: Specifically designed for compressed air, gas, and pneumatic systems
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Manual Override Capability: Allows positive shut-off even under pressure conditions
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Full Certification Available: Manufactured to meet ABS, BV, CCS, LR, DNV, RINA classification requirements
Technical Specifications
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Design Standard: JIS F7340C
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Flange Standard: JIS B2220
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Pressure Rating: 30K (300 psi)
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Temperature Range: -20°C to 200°C
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Body Material: Cast Steel (SCPH2/WCB equivalent)
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Trim Options: Stainless Steel (SUS304/SUS316) or Bronze seating surfaces
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Stem Material: Stainless Steel or Bronze
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Nominal Diameter: DN32 to DN200 (1¼” to 8″)
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Operation: Manual Handwheel with Automatic Check Function
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Media: Compressed Air, Inert Gases, Nitrogen, Utility Gases
Dimension Table (JIS F7340C 30K Standard)
| Model | L | D | C | Bolt Holes | h | t | H | D2 |
|---|---|---|---|---|---|---|---|---|
| 7340 30K032 | 220 | 140 | 105 | 4 | 19 | 22 | 245 | 180 |
| 7340 30K040 | 240 | 160 | 120 | 4 | 23 | 22 | 255 | 180 |
| 7340 30K050 | 260 | 165 | 130 | 8 | 19 | 22 | 310 | 224 |
| 7340 30K065 | 310 | 200 | 160 | 8 | 23 | 26 | 340 | 250 |
| 7340 30K080 | 340 | 210 | 170 | 8 | 23 | 28 | 380 | 280 |
| 7340 30K100 | 390 | 240 | 195 | 8 | 25 | 32 | 435 | 315 |
| 7340 30K125 | 470 | 275 | 230 | 8 | 25 | 36 | 410 | 400 |
| 7340 30K150 | 540 | 325 | 275 | 12 | 27 | 38 | 585 | 415 |
| 7340 30K200 | – | 370 | 320 | 12 | 27 | 40 | – | 450 |
The description/sizes may be different with goods, please check with us when order.
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