single piece ball valve Description
Single-piece ball valve refers to a non-separable ball valve whose valve body is made by integral forging or casting. The ball and sealing components are wrapped by a single-layer valve body. It has a compact structure and low maintenance cost, and is suitable for small and medium-caliber pipeline systems. The core features include:
Integrated valve body: No split structure, reducing leakage risk and improving pressure resistance (conventional pressure resistance 1.6-4.0MPa);
Floating ball design: The ball is close to the valve seat with the medium pressure to achieve two-way sealing (leakage ≤10% rated flow).
Material and specifications
Mainstream materials:
304 stainless steel: Economical choice, suitable for ordinary water, steam and weakly corrosive media;
316/316L stainless steel: Molybdenum-containing materials enhance resistance to chloride ion corrosion, suitable for harsh environments such as seawater, chemical acid and alkali.
Diameter range:
Standard models cover DN8 (2 inches) to DN100 (4 inches), and special customization can be expanded to DN300;
Full-diameter design (flow efficiency ≥ 99%) reduces fluid resistance and is suitable for high-flow scenarios.
single piece ball valve Specification
Applicable Temperature: -20ºC ~ 150 ºC
Main Materials: WCB/CF8/CF8M/CF3/CF3M
Applicable Medium: Water / Oil / Gas / Causticity Medium
Pressure Rating: 1000WOG/2000WOG
Size Range: 1/4" ~ 4"(DN8-DN100)
| PART | MATERIAL | ||
| Body | CF8M | CF8 | WCB |
| Ball Seat | PTFE/RPTFE/PPL | ||
| Ball | 316 | 304 | 201 |
| Body Gasket | PTFE | ||
| Cap | CF8M | CF8 | WCB |
| Stem | 316 | 304 | 201 |
| Thrust Washer | PTFE | ||
| Stem Packing | PTFE | ||
| Gland Nut | 304 | ||
| Handle | 201 | ||
| Spring Washer | 304 | ||
| Nut | 304 | ||
| Locking Device | 201 | ||
| Handle Cover | Plastic | ||
single piece ball valve
Applications
Civilian fields: household tap water pipes, solar water heating systems and water purification equipment switch control; Industrial scenarios: Cut off highly corrosive media such as hydrochloric acid and brine in chemical pipelines; Aseptic delivery of sanitary fluids (such as dairy products and pharmaceutical raw materials) in the food and pharmaceutical industry; Special needs: steam pipelines (high-temperature sealing materials are required) and flammable and explosive gas safety control.
Selection and installation points
Selection suggestions: For highly corrosive environments (such as seawater), 316L material is preferred, and ceramic-coated valve seats are used to improve wear resistance; High-pressure scenarios require customized thickened valve bodies (such as DN50 with a pressure resistance of 10MPa). Installation specifications: Horizontal installation and reserve 90° operating space to avoid inversion and seal failure; After installation, a 1.5 times working pressure test is required (maintaining pressure for 10 minutes without leakage).
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