20411-TRW メートル規格 メス型 24度コーン Oリング継手

Our metric female 24 degree cone O-ring fitting, series 20411-TRW, is a crimp-on hydraulic hose fitting built to the DIN 3865 and ISO 8434-1 24 degree cone geometry with an O-ring pre-installed in the cone seat. It connects braided hydraulic hose to metric female ports on pumps, valves and cylinders with a reliable O-ring seal. The range covers M12x1.5 to M52x2 threads, dash size -04 to -24, hose bore DN6 to DN40. Every fitting is 100% dimensionally inspected and each O-ring is checked before packing.

コンプライアンスおよび基準：

• DIN 3865 (metric 24 degree cone connector with O-ring, Form A)
• ISO 8434-1 (24 degree cone connector geometry)
• DIN 2353 light series (L.T.) dimensional standard
• ISO 12151 series (hose fittings with 24 degree cone connectors)
• SAE J516（油圧ホース継手の一般的な設計指針）

Why buyers choose this fitting:

• O-ring included with every fitting. The O-ring sits in the 24 degree cone seat and provides the seal. No tape, no paste, no guesswork at assembly.
• DIN 2353 light series compatibility. Interchangeable with industry-standard light series metric female fittings on the same port grid.
• 広い温度範囲。. Rated for -40°C to +100°C continuous duty with the standard NBR O-ring.
• Carbon steel or stainless options. Zinc-plated carbon steel for general duty; 304, 316 or 316L stainless for corrosive media.

Metric Female 24 Degree Cone O-Ring Fitting Technical Specifications

The table below lists all 24 sizes of the 20411-TRW metric female 24 degree cone O-ring fitting. Dimensions are in millimeters. Each fitting ships with the O-ring size listed in the table, matched to the cone seat.

Notes: Dim. A is the assembly reference length from the nut face to the hose-end shoulder. Dim. C is the cone zone length. Hex S2 is the wrench size across flats. The -RW suffix denotes the braided-hose version; for spiral-wound hose, use series 20412-XX-XXTRW.

How the O-Ring Seal Works

This metric female 24 degree cone O-ring fitting seals differently from a plain 24 degree cone seat fitting. The O-ring sits in a groove inside the 24 degree cone seat. When the mating male 24 degree cone stud is tightened into the female thread, it compresses the O-ring against the cone wall. The O-ring, not the metal cone, carries the seal.

This gives three practical advantages for maintenance teams. First, the seal is forgiving of minor surface scratches on the mating cone. Second, the same fitting can be re-tightened several times without seal degradation. Third, there is no need for thread sealant, tape or paste. Replace the O-ring when you replace the hose, and the seal is as good as new.

挿入深さと圧着外径――エンジニアが求める2つの数値

挿入深さは、ホースの内径に挿入されるバーブ付きテールの長さです。圧着外径は、圧着後のフェルールの外径です。これら2つの要素によって、アセンブリが圧力を保持できるか、あるいは圧着部から漏れが生じるかが決まります。.

HENGHUAでは、SAE 100 R1AT、R2AT、およびEN 853 1SN／2SNを含め、当社が供給するすべてのホース構造について、対応するインサート深さと圧着外径を公表しています。補強材の厚さによって積層厚さが変わるため、これらの値はホースごとに異なります。 ホースの型番を明記の上、当社の圧着データシートをご請求いただければ、1営業日以内に正確な圧着外径およびダイの選定情報をお知らせいたします。.

当社の製造試験の結果、公表されている許容範囲（通常±0.2 mm）内の圧着外径が確認された場合、完成品において4:1以上の破裂安全率を確保できることが判明しました。圧着作業のたびに、デジタルノギスで測定してください。.

材料および熱処理

• 炭素鋼（標準）： high-strength cold-headed or hot-forged carbon steel (20# / 35# / 45# grades). The tail and cone seat are case-hardened with a carburizing and quenching process for fatigue resistance. Reference hardness range is HRC 20-28 on the core with a hardened case.
• 表面仕上げ： 白亜鉛メッキまたはカラー（黄色）亜鉛メッキ（不動態化処理済み）。より厳しい塩水噴霧試験の要件に対応するため、オプションで亜鉛ニッケルメッキおよびダクロメットコーティングもご利用いただけます。.
• ステンレス鋼（オプション）： 304, 316 or 316L stainless steel for corrosive media and washdown environments. Stainless versions are supplied with a clean, pickled surface.
• O-ring elastomer: standard NBR (nitrile). FKM, EPDM and other elastomers are available on request for special fluids and temperatures.

耐圧・耐熱定格

The connection rating follows the DIN 2353 light series table below. These are reference values for the fitting connection itself. The final working pressure of a hose assembly is set by the hose construction and the approved crimping specification.

*Reference values per DIN 2353 light series. Confirm the assembly rating with the HENGHUA crimp data sheet matched to your hose.

温度範囲： -40°C to +100°C with the standard NBR O-ring. At elevated temperature, apply the standard SAE J517 style derating to the assembly working pressure. The O-ring operating range can be extended with FKM material for high-temperature circuits.

耐圧試験： HENGHUAでは、定格使用圧力の最大100%までの耐圧試験済みのアセンブリを供給可能であり、ご要望に応じて試験証明書を発行いたします。.

How to Select the Right Metric Female 24 Degree Cone O-Ring Fitting

Selection is a three-step process. First, match the hose bore to the dash size. Second, match the thread to your port. Third, confirm the hose construction version (-RW for braided, 20412 series for spiral).

部品番号の構成

HENGHUAの部品番号は、3つの区切りで読みます。例： 20411-22-08RW.

ホースシリーズから選択

The 20411-TRW fitting is designed for braided hydraulic hose. Recommended matching constructions:

• SAE 100 R1AT (one wire braid) – for -04 to -24 sizes
• SAE 100 R2AT (two wire braid) – for -04 to -24 sizes
• EN 853 1SN および 2SN（同等の欧州規格）
• DIN EN 857 1SC and 2SC (compact constructions, confirm insert depth)

ねじサイズで選択

The female thread accepts a metric male 24 degree cone stud. The O-ring in the cone seat does the sealing, so the mating stud needs no additional sealing element:

• 小さいサイズ： M12x1.5, M14x1.5, M16x1.5, M18x1.5 (dash -04 to -08)
• 中サイズ： M22x1.5, M26x1.5, M27x1.5, M30x2 (dash -05 to -12)
• 大きいサイズ： M36x2, M45x2, M52x2 (dash -12 to -24)

Tightening is via the hex S2 with a standard wrench. The O-ring is pre-installed, so assembly is a simple screw-on operation.

関連項目

This series replaces equivalent DIN 3865 / DIN 2353 light series metric female fittings with O-ring available in the market. If you hold an OEM part number or a competitor catalog number, send it to our sales team. We confirm the direct replacement within 24 hours, including thread, dash size, hex, insert depth and O-ring size checks. This saves your purchasing team hours of catalog matching.

包装・物流

組み立てガイド：安全なホースの組み立てを行うための4つの手順

Follow this process for every crimped assembly. It applies to every metric female 24 degree cone O-ring fitting size from dash -04 to -24. Skipping one step is the most common cause of early fitting failure.

手順 1 – ホースを直角に切る。. 切れ味のよいホースカッターを使用してください。切り口が直角であれば、継手がホース内に均等に収まります。斜め切りやギザギザの切り口になると、隙間が生じ、そこから漏れの原因となります。.

手順 2 – 挿入深さを印をつける。. HENGHUAの圧着データシートに記載されている挿入深さを測定します。その距離の位置に、ホースカバーに線を引きます。この印は、挿入後もはっきりと見えるようにしておく必要があります。.

ステップ3 – 潤滑して挿入する。. ホースの内径とバーブ付きテール部分に、適合する組立用潤滑剤を薄く塗布してください。フィッティングをねじりながら押し込み、深さ目印がテールの端と揃うまで挿入します。目印の位置で停止してください。それ以上無理に押し込まないでください。.

手順4 – 圧着して確認する。. Select the correct die set for your hose and fitting size. Crimp in one continuous stroke. After crimping, measure the crimp O.D. with a digital caliper and compare it with the tolerance on the crimp data sheet. Record the value on your quality log. A correct crimp O.D. is the difference between a 10-year assembly and a field failure.

安全上の注意 – 圧着作業を行う前に必ずお読みください

• ブランドを混ぜてはいけません。. メーカーが異なるホースや継手は、寸法が同じであっても、圧着パラメータが異なる場合があります。必ず、互いに適合するホース、継手、および圧着データシートを使用してください。.
• Never seal the 24 degree cone with tape. The O-ring in the cone seat provides the seal. Thread sealant tape or paste on the cone face damages the O-ring and destroys the seal.
• Check the O-ring before assembly. A cut, pinched or hardened O-ring must be replaced. The O-ring is the sealing element; never assemble without it.
• Tapered threads need sealant. When this fitting is adapted to a tapered thread port (NPT or BSPT), the adapter requires thread sealant. Parallel thread connections with O-ring seals must never receive tape.
• 規定通りに締め付けてください。. Use the hex S2 and tighten to the torque value on the data sheet. Over-tightening distorts the cone seat. Under-tightening causes vibration loosening.
• 圧着済みの継手は絶対に再利用しないでください。. 圧着されると、フェルール部分は加工硬化します。再度圧着を行っても、元の締め付け力を回復させることはできません。.

OEMカスタマイズと品質トレーサビリティ

HENGHUA supplies not only standard sizes but also fully customized metric female 24 degree cone O-ring fitting solutions for OEM programs.

カスタマイズサービス

• Thread customization. Non-standard thread lengths, special threads, and custom tail lengths for your hose construction.
• O-ring elastomer selection. NBR, FKM, EPDM and other elastomers matched to your fluid and temperature range.
• 表面処理のカスタマイズ。. ホワイト亜鉛、カラー亜鉛、亜鉛ニッケル、およびダクロメットコーティングは、72時間から720時間以上までの塩水噴霧試験要件に合わせてご提供いたします。.
• レーザーマーキング。. 六角形部分に貴社のロゴ、部品番号、ロット番号をレーザー刻印し、完全なトレーサビリティを確保しています。.
• パッケージのカスタマイズ。. お客様のBOMに基づいたプライベートブランド用の箱、バーコードラベル、およびサイズが混在するキット。.

品質のトレーサビリティ

Every HENGHUA batch carries a traceable batch number. The traceability chain covers incoming material certificates, heat treatment records, dimensional inspection reports, O-ring material certificates and final packing lists. Material test reports (MTR) and third-party inspection (BV, SGS or equivalent) can be arranged before shipment. Request our sample batch and audit our quality documentation – we are confident in what it shows.

よくある質問

What is a 24 degree cone O-ring fitting?

It is a hydraulic fitting whose female thread carries a 24 degree cone seat with a groove for an O-ring. The O-ring seals against the 24 degree outer cone of the mating stud. The geometry follows DIN 3865 and ISO 8434-1.

Is the O-ring included?

Yes. Every 20411-TRW fitting ships with the matching O-ring pre-installed in the cone seat. Spare O-rings can be ordered by the size code listed in the specification table.

Which hose works with the 20411-TRW fitting?

The 20411-TRW version is designed for braided hydraulic hose such as SAE 100 R1AT, R2AT and EN 853 1SN / 2SN. For spiral-wound hose, use the 20412 series.

What is the difference between light series and heavy series?

Light series (L.T.) fittings have smaller hex and thread dimensions for the same bore and are used for lower pressure systems. Heavy series (S.T.) fittings use larger dimensions for higher pressure service. This page covers the light series per DIN 2353.

Can I order stainless steel versions?

Yes. 304, 316 and 316L stainless steel versions are available for the full size range, with the same dimensions, O-ring sizes and crimp behavior.

最小注文数量はどれくらいですか？

在庫品の最小注文数量は100個からです。カスタマイズ品の最小注文数量は、サイズごとに500個からです。OEMの年間契約については、当社の工場チームと直接ご相談ください。.

Get a Quote for Your Metric Female 24 Degree Cone O-Ring Fitting

Tell us your hose model, thread size and annual volume. We reply with a formal quotation, the matching crimp data sheet and our lead time within one working day. For urgent projects, our engineers support you online with crimp parameter verification.