生物医药、食品饮料行业的阀门不仅是控制元件，也是卫生安全的一部分。GMP要求设备无死角、易清洗、耐高温消毒。凹坑、盲区和粗糙焊缝可能滋生细菌、污染产品并造成召回。山东龙飞提供参照GB、ISO、3A、SMS等标准的卫生级产品，支持CIP与SIP。
卫生设计原则
- 流线型结构减少凹坑、死区和介质滞留。
- 阀体及内件特殊抛光，正文规定Ra≤0.4 μm。
- 排空设计减少腔内残液。
产品矩阵
直行程角阀流道通畅，适用于严格控制死区的反应釜进料口。球阀全通径、通过能力强，支持快速拆装。蝶阀紧凑轻量、抛光蝶板降低流阻。隔膜阀以橡胶+PTFE隔膜隔离介质与外部，适合高洁净度要求。
材料与连接
采用304、316L等不锈钢，提供卡箍、焊接、螺纹和法兰连接，密封采用符合相关FDA要求的食品级橡胶或PTFE。
产品参数
| 参数 | EASC角阀 | EDVO蝶阀 | EQVO球阀 | ESVO隔膜阀 |
|---|
| 口径 | DN10–DN100 | DN32–DN100 | DN15–DN100 | DN25–DN150 |
| 压力 | PN10–PN16 | PN10–PN16 | PN10–PN16 | PN10–PN16 |
| 温度 | −20°C至150°C | −20°C至150°C | −20°C至150°C | −10°C至150°C |
| 泄漏等级 | IV | IV–VI | VI | VI |
| 阀体 | 不锈钢 | 不锈钢 | 不锈钢 | 不锈钢 |
| 内件或膜片 | 不锈钢或不锈钢+PTFE | 不锈钢或不锈钢+PTFE | 不锈钢或不锈钢+PTFE | 橡胶+PTFE |
角阀为等百分比特性；角阀配薄膜执行机构，球阀和蝶阀可选气动或电动，隔膜阀配气动执行机构。可按产品配定位器及过滤减压阀。原文正文与产品图对粗糙度阈值表述不同，采购时应确认所需表面处理指标。
卫生是食品与制药的底线，适当的结构、材料及清洗配置共同保护产品。咨询电话：0531-88263858 / 88013051 / 88110763 / 88165149。
In biopharmaceutical, food and beverage production, valves are both control components and part of the hygiene barrier. GMP requirements place strong emphasis on eliminating dead spaces, enabling cleaning and tolerating high-temperature sterilization. Pits, blind cavities and rough welds can retain contamination, damage product quality and contribute to recalls.
Shandong Longfei offers hygienic fluid-control products designed around GB, ISO, 3A and SMS requirements and compatibility with clean-in-place (CIP) and sterilize-in-place (SIP) systems.
1. Principles of hygienic design
- Avoid dead spaces: streamlined angle- and ball-valve passages reduce pockets, pits and retained media.
- Polished surfaces: the article specifies specially polished body and internal surfaces with Ra ≤0.4 μm to support cleaning.
- Drainability: the construction is intended to allow liquid to drain without remaining inside the cavity.
2. The hygienic product range
Linear-motion angle valve
The angle-shaped passage is smooth and easy to clean, making it suitable for reactor feed points where dead-space control matters. Stainless-steel construction, polished internal surfaces and compatibility with CIP/SIP support hygienic operation.
Ball valve
A full-bore passage provides high flow capacity without retained material. Polished body and ball surfaces and quick-disassembly options support cleaning and maintenance.
Butterfly valve
A compact, lightweight stainless-steel assembly with a polished disc provides a smooth passage and low flow resistance.
Diaphragm valve
A rubber/PTFE diaphragm separates the medium from the external mechanism. Smooth stainless-steel passages and a polished cavity support high-cleanliness duties.
3. Materials and connections
The range uses stainless steels such as 304 and 316L. Connections include clamps or quick-connect fittings, welding, threads and flanges. The article specifies food-grade rubber or PTFE sealing materials meeting the relevant FDA requirements.
4. Product specification tables
| Parameter | EASC hygienic angle valve | EDVO hygienic butterfly valve |
|---|
| Nominal size | DN10–DN100 | DN32–DN100 |
| Pressure rating | PN10–PN16 | PN10–PN16 |
| Temperature range | −20°C to 150°C | −20°C to 150°C |
| Leakage class | IV | IV–VI |
| Body | Stainless steel | Stainless steel |
| Trim or seat materials | Stainless steel; stainless steel with PTFE | Stainless steel; stainless steel with PTFE |
| Flow characteristic | Equal percentage | Not specified in the sheet |
| Connections | Flanged, welded, threaded or clamped | Flanged, welded, threaded or clamped |
| Actuation and accessories | Diaphragm actuator, electropneumatic/smart positioner, filter regulator | Pneumatic/electric actuator, electropneumatic/smart positioner, filter regulator |
| Parameter | EQVO hygienic ball valve | ESVO hygienic diaphragm valve |
|---|
| Nominal size | DN15–DN100 | DN25–DN150 |
| Pressure rating | PN10–PN16 | PN10–PN16 |
| Temperature range | −20°C to 150°C | −10°C to 150°C |
| Leakage class | VI | VI |
| Body | Stainless steel | Stainless steel |
| Trim or diaphragm | Stainless steel; stainless steel with PTFE | Rubber and PTFE |
| Connections | Flanged, welded, threaded or quick-connect | Flanged, welded, threaded or quick-connect |
| Actuation and accessories | Pneumatic/electric actuator, electropneumatic/smart positioner, filter regulator | Pneumatic actuator and filter regulator |
The source refers to GB, ISO, 3A and SMS across the four product sheets. Its prose gives Ra ≤0.4 μm, while the embedded sheets use a different wording for the roughness threshold; the required surface finish should therefore be confirmed during specification.
Protecting product hygiene
Hygiene is fundamental to food and pharmaceutical production. Appropriate valve construction, materials and cleaning arrangements support the safe handling of every batch. Telephone: 0531-88263858 / 88013051 / 88110763 / 88165149.
