In the brewing industry, 水質や発酵管理から配管や接続システムの設計に至るまで、あらゆる細部が重要です. One often-overlooked but critical component is the フランジ. 正しい選択 flange for brewery equipment is essential for maintaining sanitary conditions, ensuring leak-free operation, and simplifying maintenance and cleaning.

Whether you’re operating a small craft brewery or a large-scale industrial brewing facility, understanding which flanges are best suited for your equipment will help you maintain quality, 安全性, と効率. In this comprehensive article, we explore the types of flanges commonly used in breweries, material and design considerations, そしてどのように SASA FLANGE delivers precision-crafted flange solutions trusted by brewers worldwide.

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Why Flange Selection Matters in Brewing Systems

Brewing involves multiple fluid processes—hot and cold water handling, mash transfers, wort boiling, fermentation, クリーニング, and packaging. The piping and vessel systems used for these stages must meet specific sanitary and functional requirements.

Flanges in brewery equipment must:

• Prevent bacterial contamination

• Be easy to clean (CIP/SIP compatibility)

• Withstand temperature fluctuations

• Offer secure and durable connections

• Comply with food-grade standards

Choosing the correct flange ensures seamless process flow, safe brewing conditions, and product quality consistency.

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Most Common Flange Types for Brewery Equipment

Let’s explore the best flange types for various sections of a brewery, from brewhouses and fermenters to bottling lines and CIP systems.

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1. トライクランプフランジ (サニタリークランプフランジ)

こんな方に最適: All hygienic brewing connections.

特徴:

• Tool-free clamp system

• Smooth internal bore with no crevices

• Standardized per ISO 2852 and ASME BPE

• Compatible with silicone, EPDM, and PTFE gaskets

アプリケーション:

• Mash tuns and lauter tuns

• Fermenters and brite tanks

• CIP and sanitizer loops

• Keg and canning systems

なぜ効果があるのか: Tri-clamp flanges are the gold standard for breweries. Their quick-connect design ensures fast cleaning and disassembly while maintaining food-grade hygiene.

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2. 溶接ネックフランジ (Sanitary Design)

こんな方に最適: 永続, high-pressure or high-temperature sections.

特徴:

• Butt-welded to pipes and tanks

• テーパーネックで応力集中を軽減

• Fully drainable and cleanable

• Available with electropolished surfaces

アプリケーション:

• Steam lines for sterilization

• Hot liquor tanks

• Heat exchanger connections

• High-temperature CIP lines

なぜ効果があるのか: Provides robust and hygienic connections for demanding brewing operations where pressure or thermal expansion is a concern.

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3. ラップジョイントフランジ (スタブエンド付き)

こんな方に最適: Connections requiring frequent maintenance or alignment.

特徴:

• Rotating flange fits over a stub end

• Only the stub end contacts the liquid

• Cost-effective when using corrosion-resistant materials

アプリケーション:

• Pipe skids

• Brewery equipment with tight space constraints

• Modular brewing systems

なぜ効果があるのか: Easy bolt alignment and cost-effective for applications using exotic alloys or lined piping.

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4. ブラインドフランジ

こんな方に最適: Sealing off ports and nozzles for maintenance or expansion.

特徴:

• No center bore

• Can include test ports or sample taps

• Rated for full design pressure

アプリケーション:

• Spare nozzles on tanks

• Isolated lines during maintenance

• CIP system access

なぜ効果があるのか: Provides secure closures to prevent leakage or contamination when parts of the system are not in use.

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5. ねじ付きフランジ (Less Common in Brewing)

こんな方に最適: Low-pressure utilities, non-product-contact areas.

特徴:

• Screws onto male threaded pipe

• 溶接は不要です

• Easy to install and remove

アプリケーション:

• 圧縮空気ライン

• Chilled water loops

• Utility services

なぜ効果があるのか: Though not ideal for product-contact areas, threaded flanges may be used for non-critical systems due to their simplicity.

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Flange Face Types in Brewery Equipment

The face of a flange determines how it seals with its gasket. For brewery applications, these are the most common:

• 滑らかな顔 / Sanitary Clamp Face: Most sanitary tri-clamp systems use smooth faces for full gasket contact and easy cleaning

• 平面 (FF): Used in low-pressure food-grade systems

• 盛り上がった顔 (RF): Rare in brewery equipment due to potential crevice formation

• O-Ring Groove Face: Used in high-purity applications requiring aseptic seals

For breweries, the key is スムーズ, crevice-free contact to maintain sanitary conditions and avoid bacterial buildup.

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Flange Material Selection for Brewing Applications

Flanges used in brewery equipment must meet food safety and corrosion resistance standards. The most common materials include:

• 316L ステンレス鋼: Preferred for its corrosion resistance, 洗浄性, and compliance with FDA and 3-A Sanitary Standards

• 304 ステンレス鋼: Common in non-critical systems or where cost savings are needed

• Plastic (例えば, PVDF or polypropylene): Occasionally used for caustic chemical loops but limited in durability

• Copper or Brass: Rarely used due to contamination risk in food-grade systems

SASA FLANGE supplies flanges with polished surfaces (Ra ≤ 0.5 μm), 電解研磨, and full traceability per ASTM and FDA guidelines for brewing applications.

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業界標準とコンプライアンス

To ensure safety and compatibility, brewery flanges must comply with:

• ASME BPE (BioProcessing Equipment)

• 3-衛生基準

• FDA CFR 21 food-contact regulations

• ISO 2852 / DIN 11850 for tri-clamp components

• EN 10204 3.1 certificates for material traceability

SASA FLANGE delivers all products with the documentation needed for quality audits, inspections, and brewery certifications.

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Brewery Use Case: Flange Application by Area