3/8″ Mini Ball Valve Compact Body Quick Quarter Turn Shut Off For Gas Liquid
3/8″ mini ball valve with compact structure & fast 90° lever operation, brass/304 SS, NPT/BSP thread for lab refrigeration pipelines.
Description
I. Product Function
The 3/8″ mini ball valve is a small‑bore shutoff device designed for rapid on/off control of gas or liquid lines. Its compact mini ball valve body and quarter‑turn mini ball valve handle (90° quick‑action) make it ideal for confined spaces inside equipment, laboratories, and refrigeration systems—addressing the common challenges of difficult installation and cumbersome operation in tight layouts. It is well suited for isolating media such as refrigerants, compressed air, reagents, and similar fluids.
II. Product Specification Table
| Parameter | Standard Specification |
|---|---|
| Nominal size | 3/8 inch |
| Body construction | Compact mini ball valve (integrated one‑piece) |
| Operation | 90° single‑lever quick opening (rapid stroke) |
| Thread type | NPT / BSP (male or female) – 3/8 npt mini ball valve |
| Body material | Forged brass / SS304 (stainless steel mini ball valve) |
| Seal material | Media‑resistant PTFE seat |
| Pressure rating | PN63 / 1000WOG |
| Suitable media | Refrigerants, compressed air, purified water, mild corrosive reagents |
| Typical applications | Refrigeration test benches, laboratory instruments, pneumatic equipment |
III. Core Product Advantages
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Compact footprint – The integrated small‑form body occupies minimal space, allowing direct installation in dense pipework or narrow cavities without interfering with surrounding components, thus maximising internal equipment layout efficiency.
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Swift actuation – A mere 90° rotation achieves full open or closed position, eliminating multiple turns. This enables instantaneous shutoff during faults or sampling, reducing refrigerant or reagent loss.
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Multiple thread options – Available in standard 3/8 configurations to match common miniature fittings, eliminating the need for additional reducing adapters.
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Material versatility – The stainless steel variant resists refrigerant corrosion, making it ideal for refrigeration systems; the brass version offers cost‑effective performance for general water/air services.
IV. Real‑World Application Case
Application case: Shanghai Refrigeration Testing Centre – located in the Keji Innovation Park, Haiwan Town, Fengxian District, Shanghai. In this laboratory, multiple small‑scale heat pump refrigerant test branches adopted the 3/8″ mini ball valve. The test rigs feature dense piping arrangements, and the compact mini ball valve body fits perfectly into the limited mounting spaces. During maintenance or refrigerant sampling, the quarter‑turn mini ball valve enables rapid closure, effectively minimising refrigerant escape. After prolonged high‑frequency testing, no leakage or handle‑sticking issues have been observed, making it the standard isolation valve for all refrigerant test units.
V. Selection Guidance
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For refrigeration and refrigerant testing, prioritise the stainless steel mini ball valve.
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For pneumatic or general water lines, the brass version is recommended.
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For compact internal equipment piping, always specify the 3/8 npt mini ball valve with standard thread configuration for optimal compatibility.
