Sanitary Ball Check Valve
KINGMAN sanitary ball check valve, also known as a ball-type non-return valve or one-way valve, is a high-hygiene automatic non-return valve specially designed for hygienic piping systems. The product features a ball-type opening and closing structure, mainly composed of a valve body, a food-grade ball and a sealing seat. Its simple and compact structure requires no spring or other wearing parts, resulting in a low failure rate and easy maintenance. The valve body is made of high-quality stainless steel 304/316L with a smooth, dead-leg-free internal surface, meeting the high cleanliness and hygiene safety requirements of the food and pharmaceutical industries, and is widely applicable to various hygienic process piping systems.
Specifications
| Parameter | Value |
|---|---|
| Product Type | Sanitary Check Valve |
| Size Range | DN15‑DN100 (approx. 1/2"‑8") |
| Body & Disc Material | 304 / 316L stainless steel (AL6XN, Hastelloy, Alloy 22 available on request) |
| Seal Material | EPDM (standard) /Silicon (optional — please confirm) |
| Working Temperature | 130 °C |
| Max. Working Pressure | 1000 kPa (10 Bar) for DN15‑DN100; 800 kPa (8 Bar) for DN125‑DN150 |
| Min. Working Pressure | Full vacuum (with EPDM seal) |
| Connection Standard | 3A / SMS / DIN / ISO / RJT / IDF / ASME BPE |
| Connection Type | Tri‑Clamp / Weld / Threaded / Flange (please confirm) |
| Operation Type | Manual handle / Pneumatic actuator |
| Certification | ISO 9001, 3A,CE,EAC,health wading license |
Dimensions
SMS Standard

| Material Code | Size | A | B | C | D |
|---|---|---|---|---|---|
| CV04SMSWWEP04040 | DN40 | 115.0 | 100.0 | 38.0 | 41.0 |
| CV04SMSWWEP04050 | DN50 | 125.0 | 110.0 | 50.0 | 53.0 |
| CV04SMSWWEP04065 | DN65 | 135.0 | 130.0 | 66.0 | 70.0 |
| CV04SMSWWEP04080 | DN80 | 145.0 | 146.0 | 81.0 | 85.0 |
| CV04SMSWWEP04100 | DN100 | 155.0 | 166.0 | 100.0 | 104.0 |
Features
- Adopts unique spherical core sealing structure, featuring large flow area and low fluid resistance, ensuring efficient and stable medium delivery in sanitary pipelines.
- The floating spherical sealing core has flexible automatic reset performance, providing highly sensitive one-way anti-backflow effect under variable flow and pressure conditions.
- Integral CNC precision machining with standard 304/316L stainless steel body, delivering excellent structural stability and durable sealing performance.
- Internal streamline spherical cavity design completely eliminates dead corners, effectively avoiding medium retention and residue, fully adapting to frequent CIP online cleaning.
- Free of fragile spring parts, the spherical non-return structure realizes long service life, low failure rate and minimal maintenance cost for industrial continuous operation.
- Compliant with international sanitary standards, suitable for food, beverage, pharmaceutical and biological engineering industries, and supports stable global export supply.
Working Principle
The Sanitary Non Return Ball Check Valve, also known as a ball-type non-return valve or one-way valve, is an automatic valve installed in hygienic piping systems to prevent reverse flow of media. Its working principle: when the medium flows forward, fluid pressure pushes the ball off the sealing seat, allowing the medium to pass through smoothly. When the medium stops flowing or reverse pressure occurs, the ball automatically falls back under the combined action of its own gravity and the reverse pressure, pressing firmly against the seat to form a reliable seal and prevent backflow. The valve requires no spring, no manual operation and no external power, offering direct and reliable opening and closing action, while its full-bore flow path provides low resistance and smooth handling of viscous or particle-containing media.
Why Choose KINGMAN
10,000+ Options
Choose from more than 10,000 product options covering sanitary valves, fittings, sight glasses, strainers and related components across different dimensions, materials, standards and connection configurations.
Drawing Review
Send us your product drawings and interface requirements before production, allowing our engineering team to review manufacturability and determine suitable machining, fabrication, connection and surface-finishing processes.
Batch Consistency
Once specifications are approved, controlled production keeps confirmed dimensions and configurations as the reference for subsequent batches, supporting distributors and OEMs that depend on consistent long-term repeat supply.













