87391-RW 90度 SAEフランジ継手 3000 PSI

Our 90 degree SAE flange fitting 3000 psi, series 87391-RW, is a one-piece crimp-on elbow with an SAE J518 Code 61 four-bolt flange head set at a right angle. It connects braided hydraulic hose to SAE flange ports on pumps, valve manifolds and cylinders used in heavy hydraulic systems, turning the hose immediately at the port. The range covers 1/2″ to 2.1/2″ flange sizes, dash size -08 to -32, hose bore DN12 to DN50. Every elbow is formed in one piece, without welding, and 100% dimensionally inspected before shipment.

コンプライアンスおよび基準：

• SAE J518 Code 61 (four-bolt flange, 3000 psi series)
• ISO 6162 (flange connections for fluid power)
• ISO 12151-3 (hose fittings with flange ends)
• SAE J516（油圧ホース継手の一般的な設計指針）

購入者がこのエルボを選ぶ理由：

• One-piece 90 degree flange elbow. 単一の鍛造品または冷間圧造ブランクから成形されています。曲げ部に溶接がなく、衝撃圧力下でも弱点が生じません。.
• The standard right-angle connection. Pumps, valve blocks and cylinders use 90 degree outlets more than any other angle. This elbow covers them with one part.
• Extended height variants included. The H100, H127 and H150 versions raise the hose outlet to 100, 127 or 150 mm above the flange face, solving installation height problems without extra adapters.
• Full flange size range. 1/2″ through 2.1/2″ (SAE J518 Code 61), covering flange ports from DN12 to DN50.

90 Degree SAE Flange Fitting 3000 PSI Technical Specifications

The table below lists all 26 sizes of the 87391-RW 90 degree SAE flange fitting 3000 psi. Dimensions are in millimeters. Flange dimensions follow SAE J518 Code 61. Dim. A is the length from the flange centerline to the hose-end shoulder, Dim. C is the flange head outside diameter, Dim. D is the bolt hole center distance, Dim. H is the height from the flange face to the hose axis, and Dim. L is the flange head thickness.

Notes: Part numbers marked (H100), (H127) or (H150) are extended height variants with Dim. H of 100, 127 or 150 mm, used where the hose outlet must clear an obstruction or reach a specific routing height. Dim. C (flange O.D.) and Dim. D (bolt spacing) match the SAE J518 Code 61 standard. The -RW suffix denotes the braided-hose version; for spiral-wound hose, use series 87392-XX-XXRW.

Why a One-Piece 90 Degree Flange Elbow

A 90 degree outlet is the most common port direction in hydraulic systems. Pumps, valve manifolds and cylinder heads all route hoses at right angles. This 90 degree SAE flange fitting 3000 psi replaces a straight flange fitting plus a separate 90 degree adapter, removing two potential leak points and extra length.

The elbow body is formed in one piece by hot forging or cold heading, then machined to tolerance. There is no welded seam at the bend. Our impulse testing found that a one-piece elbow survives pressure cycling significantly longer than a welded two-piece elbow of the same size. The compact 90 degree geometry also keeps the hose close to the machine frame, which reduces cover wear and protects the hose from snagging.

Extended Height Variants – When the Standard Height Does Not Fit

Standard flange elbows fix the hose outlet at a set height above the flange face. On some machines, that height lands inside an obstruction, or the hose must clear a beam or a cover. The H100, H127 and H150 variants of this series raise the outlet to exactly 100, 127 or 150 mm above the flange face, without any extra adapter or spacer.

This is a practical answer to a real installation problem. Instead of stacking adapters (each one a potential leak point), you order one part with the correct height built in. If you need a different height, our factory can produce custom H values on request.

How the Flange O-Ring Seals

The flange face of this fitting carries an O-ring groove. When the four bolts are tightened, the O-ring is compressed between this flange face and the mating flange face of the port. The O-ring, not the metal faces, carries the seal.

The seal tolerates minor surface scratches on the flange faces, withstands high impulse pressure without loosening, and can be serviced by simply replacing the O-ring.

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 flange 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）： 腐食性媒体や水洗い環境向けの304、316、または316Lステンレス鋼。.

耐圧・耐熱定格

The connection rating follows the SAE J518 Code 61 reference 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 SAE J518 Code 61 (3000 psi series) connection classes. Confirm the assembly rating with the HENGHUA crimp data sheet matched to your hose.

温度範囲： 連続使用時の継手の使用温度範囲は-40°C～+100°Cです。高温環境下では、アセンブリの作動圧力に対して、SAE J517規格に基づく標準的なディレーティングを適用してください。当社の技術データシートには圧力・温度ディレーティング表が掲載されています。ご要望がございましたら、お問い合わせいただければ、お見積書とともに送付いたします。.

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 90 Degree SAE Flange Fitting 3000 PSI

Selection is a four-step process. First, confirm the port needs a right angle. Second, match the hose bore to the dash size. Third, match the flange size and height to your port. Fourth, confirm the hose construction version (-RW for braided, 87392 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： 87391-16-16RW or 87391-16-16(H100)RW.

ホースシリーズから選択

The 87391-RW elbow is designed for braided hydraulic hose. Recommended matching constructions:

• SAE 100 R1AT (one wire braid) – for -08 to -32 sizes
• SAE 100 R2AT (two wire braid) – for -08 to -32 sizes
• EN 853 1SN および 2SN（同等の欧州規格）
• Spiral constructions (EN 856 4SP / 4SH) – use the 87392 series version

Select by Flange Size and Height

The flange head follows the SAE J518 Code 61 pattern, which bolts directly onto standard Code 61 flange ports:

• 小さいサイズ： 1/2″ and 3/4″ flange (dash -08 to -16)
• 中サイズ： 1″ and 1.1/4″ flange (dash -12 to -24)
• 大きいサイズ： 1.1/2″, 2″ and 2.1/2″ flange (dash -20 to -32)
• Height variants: standard H, or extended H100 / H127 / H150 for clearance and routing height requirements

Assembly uses four standard bolts (not supplied) and the O-ring on the flange face. Tighten the bolts in a cross pattern to the torque value on the data sheet.

90 Degree vs 45 Degree vs Straight – Which One Do You Need

Use a straight fitting when the hose leaves the port in line with the port axis. Use a 90 degree elbow when the hose must turn immediately, such as at a pump port or valve manifold edge. Use a 45 degree elbow when the hose needs a shallow angle change. When in doubt, send us a sketch of your routing and our engineers will confirm the correct angle, size and height within one working day.

関連項目

This series replaces equivalent SAE J518 Code 61 90 degree flange fittings 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 flange size, dash size, height and insert depth checks.

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 90 degree SAE flange fitting 3000 psi size from dash -08 to -32. 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 flange face with tape. The O-ring in the flange groove carries the seal. Thread sealant tape or paste on the flange face destroys the seal.
• Check the O-ring before assembly. A cut, pinched or hardened O-ring must be replaced. Never assemble the flange without it.
• Do not mix Code 61 and Code 62 flanges. Code 62 (6000 psi) flanges look similar but have different dimensions. This series is Code 61 (3000 psi); never bolt it onto a Code 62 port.
• Tighten bolts in a cross pattern. Tighten the four bolts alternately to the torque value on the data sheet to keep the O-ring evenly compressed.
• 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 90 degree SAE flange fitting solutions for OEM programs.

カスタマイズサービス

• Height and angle customization. Custom H values beyond 150 mm, special bend angles, and custom tail lengths for your hose construction.
• Flange customization. Special flange patterns and non-standard bolt spacing on request.
• 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。. Your logo, part number and batch code laser-marked on the flange for full traceability.
• 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 90 degree SAE flange fitting 3000 psi?

It is a one-piece elbow hydraulic hose fitting with an SAE J518 Code 61 four-bolt flange head and an O-ring groove on the flange face. The 90 degree outlet redirects the hose at a right angle to the flange port. The system follows ISO 6162 and ISO 12151-3.

What are the H100, H127 and H150 variants?

They are extended height versions where the hose outlet sits 100, 127 or 150 mm above the flange face. Use them when the standard elbow height lands inside an obstruction or the hose must clear a specific routing height.

What is the difference between Code 61 and Code 62 flanges?

Code 61 is the 3000 psi series; Code 62 is the 6000 psi series with larger dimensions for the same nominal size. This fitting is Code 61. Never bolt a Code 61 flange onto a Code 62 port.

How does the flange seal?

The O-ring in the flange face groove is compressed between the two flange faces when the four bolts are tightened. The O-ring, not the metal faces, carries the seal.

Which hose works with the 87391-RW fitting?

The 87391-RW version is designed for braided hydraulic hose such as SAE 100 R1AT, R2AT and EN 853 1SN / 2SN. For spiral-wound hose, use the 87392 series.

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 90 Degree SAE Flange Fitting 3000 PSI

Tell us your hose model, flange size, height, bend angle 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 and routing verification.