90 Degree Elbow SAE Flange 3000 PSI Code 61 Hydraulic Hose Fitting: 87391 Series

Why This 90 Degree Elbow SAE Flange Hydraulic Hose Fitting Passes the Compliance Gate

This 90 degree elbow SAE flange hydraulic hose fitting, series 87391, turns a crimp-on hose connection through a right angle and terminates in a flat-faced 3000 psi Code 61 flange head. The flange geometry follows SAE J518 / ISO 6162-1 (Code 61), and the hose-end and crimp profile are built to ISO 12151-3 and SAE J516, as printed on the data sheet. Because the body is one piece, the elbow has no welded joint to fatigue under impulse loading.

For an OEM, the 90 degree version is the workhorse at pump, valve, and motor flanges where hoses must double back along the machine frame. For a distributor, the 87391 matrix covers seven flange sizes plus extended-drop (H) variants for unusual layouts. For a repair shop, it restores a failed flange hose end while keeping the original routing.

• 90 degree elbow, one-piece body from the flange head to the hose tail.
• 1/2″ to 2.1/2″ Code 61 flange sizes covering DN 12 to DN 50 bores.
• Drop height H printed per part number, with (H100), (H127), and (H150) extended variants.
• 100% pressure tested at the factory, with batch records available.
• Table codes are for braided hose; for spiral-wound hose, order the 87392-XX-XX series.

主な強み

1. Nominal 3000 psi Code 61 rating. Like every code 61 flange fitting in the HENGHUA program, the head mates with standard SAE J518 / ISO 6162-1 split flange clamps (FL series), with the size-dependent rating defined by the standard.
2. Compact right-angle routing. The 90 degree turn keeps hoses tight to the frame and reduces the number of fittings and adapters in a line.
3. Extended drop variants. Standard and (H100), (H127), (H150) heights are listed in one matrix, so odd clearances do not force a custom drawing.
4. Corrosion protection matched to the environment. Trivalent zinc (96 h salt spray), zinc-nickel (720 h), or Dacromet (1000 h), selected by duty.

技術仕様

What Is a 90 Degree Elbow SAE Flange Hydraulic Hose Fitting?

A 90 degree elbow SAE flange hydraulic hose fitting reverses the direction of the hose line as it leaves a Code 61 flange pad. As with every flange type hydraulic hose fitting, the head is clamped with two split flange halves and bolts, which makes a joint that is compact and resistant to the vibration found on pumps and motors.

Within the code 61 flange fittings family, HENGHUA offers straight (87311), 45 degree (87341), and 90 degree (87391) versions so one pad design covers most machine routes.

The buying decision for flange type hydraulic hose fittings is driven by two numbers: the hose dash that defines the tail, and the drop height H that defines how far the hose line sits from the flange face. When the standard H is not enough, the (H100), (H127), and (H150) rows in the matrix give a taller drop without a custom part.

寸法データ

寸法記号は、データシートに印刷されている図面に従います。すべての値はミリメートル（mm）単位です。.

全寸法表（部品番号マトリックス）

The matrix below is transcribed directly from the 87391 data sheet and lists every flange type hydraulic hose fitting code in the series. In each part number, the first dash group is the flange size in 1/16″ increments and the second is the hose dash, for example 87391-32-32 means a 2″ flange (dash 32) with a dash-32 hose tail. A suffix in parentheses, such as (H127), marks an extended-drop variant with the stated H value. Dimensions are in mm as printed.

Note as printed on the data sheet: the codes above are for braided hose; for spiral-wound hose, change the series to 87392-XX-XX. Check the A and H columns against your routing envelope, and confirm the crimp diameter against the data sheet that ships with every order.

材料および熱処理

使用圧力および動作範囲

For SAE 3000 psi flange fittings, treat the assembly rating as the lower of the flange, hose, and crimp values; the crimp data sheet shipped with each order is the reference for verification. Every SAE flange hydraulic hose fitting in the 87391 range is 100% pressure tested at the factory before marking and packaging.

選定と発注

部品番号マトリックスの読み方

Read the series number first: 87391 means a 90 degree elbow SAE flange hydraulic hose fitting for braided hose. If your hose is spiral-wound (four- or six-wire heavy constructions), the same elbow envelope is available as the 87392 series. Then read the two dash groups as flange size and hose dash in 1/16″ increments; both are marked on the table header of your hose spec and on the flange pad drawing.

フランジサイズおよびダッシュサイズ一覧表

相互参照サービス

Send us your legacy part number, a drawing, or a physical sample, and we map it to the closest HENGHUA 87391 code. If you currently run SAE 3000 psi flange fittings sourced under legacy numbers, include the old part number and a photo so the match can be confirmed before you order.

包装・物流

組み立て・使用ガイド

4段階の圧着手順

1. Cut the hose square and remove any loose debris from the bore.
2. Mark the insertion depth from the crimp data sheet on the hose cover.
3. Lubricate the tail lightly and push the hose fully to the depth mark.
4. Crimp with the specified die set, then verify the crimp outside diameter with a caliper against the data sheet.

フランジ接続部の取り付け

Center the flange head over the mating pad and seat the O-ring in the head groove. Place the two split flange halves over the head, fit the bolts, and tighten them in a diagonal sequence in two or three passes. Use the bolt size and torque given on the split flange clamp data sheet; never reuse a crushed O-ring. This procedure applies across the code 61 flange fittings in this series, from the 1/2″ head up to the 2.1/2″ head.

インストールに関する注意事項

• Orient the 90 degree elbow before tightening so the hose lies in its intended plane; flange bolts must not be used to twist the elbow into position.
• Do not mix braided-hose and spiral-hose fittings; the tail and crimp profiles differ even when the flange looks identical.
• Do not mix Code 61 and Code 62 hardware; the heads, clamps, and bolts are not interchangeable.
• Do not use hoses, fittings, or ferrules from different brands in one crimp assembly.
• Do not re-crimp a fitting that was opened or that failed a gauge check; a crimp is a one-time deformation.
• Order the flange bolts, clamps, and O-rings to the correct spec; they are separate line items from the fitting itself.

OEMカスタマイズと品質トレーサビリティ

カスタマイズオプション

Elbow orientation, stem length, and drop height beyond the listed (H150) variants are customized for OEM programs; surface finish can be set to zinc, zinc-nickel, or Dacromet; 304/316L material is available for corrosive duty; laser marking adds your logo and batch number to the body.

品質およびトレーサビリティ体制

Incoming material, cold forming, machining, heat treatment, surface finishing, 100% inspection, pressure testing, marking, and packaging are each recorded. A batch number traces back to the steel heat and the heat-treatment and inspection records. MTRs ship with the order, and BV/SGS third-party inspection can be arranged before shipment.

よくある質問

Q: When should I choose a 90 degree elbow SAE flange hydraulic hose fitting instead of a 45 degree one? A: Choose 90 degree when the hose must double back parallel to the flange face, such as along a pump or motor body. Choose 45 degree when a shallower turn clears the adjacent component. Teams that standardize SAE 3000 psi flange fittings across machines will find both angles in the same head envelope.

Q: What do the (H100), (H127), and (H150) part numbers mean? A: They are extended-drop variants. The value in parentheses is the drop height H in mm, so 87391-12-12(H127) is the same fitting with H raised from 62 mm to 127 mm.

Q: Is the 87391 series Code 61 or Code 62? A: Code 61. As a code 61 flange fitting it follows the SAE J518 / ISO 6162-1 geometry and must not be paired with Code 62 clamps or pads.

Q: What is the difference between the 87391 and 87392 series? A: 87391 is engineered for braided hose. For spiral-wound hose, order the 87392-XX-XX series, which keeps the flange envelope but uses a different tail profile.

Q: How do I read a part number like 87391-32-32? A: 87391 is the series, 32 is the flange size in 1/16″ increments (2″), and 32 is the hose dash (2″ bore, DN 50).

Q: Does the fitting come with an O-ring and bolts? A: The flange head carries the standard Code 61 O-ring groove. O-rings can be supplied with the order; the split flanges and bolts are separate line items selected to the flange size.

Q: What temperature range does it cover? A: Typically -40°C to +120°C. High-temperature or low-temperature systems should be checked against the hose and seal ratings first.

Q: Can HENGHUA make a custom drop height or a custom version? A: Yes. Heights beyond the listed variants, custom stems, surface finish, stainless material, and laser-marked part numbers are standard OEM options with a 24 h quotation response.

お見積りのお申し込み

Tell us the flange size, hose dash, required drop height H, hose spec (braided or spiral), and quantity, and we will confirm the 87391 or 87392 series, price, and lead time within 24 hours. OEM buyers can add legacy part numbers or drawings for cross reference. Samples ship worldwide so your team can gauge the SAE flange hydraulic hose fitting before you commit.

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