SAE Flange 3000 PSI Code 61 Hydraulic Hose Fitting: 87311 Series

Why This SAE Flange Hydraulic Hose Fitting Passes the Compliance Gate

This straight SAE flange hydraulic hose fitting, series 87311, is a crimp-on hose end that 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. Every SAE flange hydraulic hose fitting in this series is machined from one piece, so there is no welded joint to fatigue under impulse.

For an OEM, it delivers a repeatable flange interface on the assembly line and a clean interchange with legacy Code 61 layouts. For a distributor, one catalog line covers seven flange sizes of SAE 3000 psi flange fittings across the most common braided-hose bores. For a maintenance team, it means a direct replacement that restores the line without re-engineering the routing.

• Straight configuration, 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 64 bores.
• Flange head with an O-ring groove at the face, ready for standard Code 61 sealing.
• 100% pressure tested at the factory, with batch records available.
• Table codes are for braided hose; for spiral-wound hose, order the 87312-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. Seven flange sizes in one family. From 1/2″ to 2-1/2″, the matrix lets you standardize on one supplier for pumps, valves, cylinders, and motor case drains.
3. Braided and spiral coverage. Use 87311 for wire-braid hose, or switch to 87312-XX-XX for spiral-wound hose, and keep the same flange envelope.
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 SAE Flange Hydraulic Hose Fitting?

A flange type hydraulic hose fitting such as the 87311 terminates in a flat-faced flange head instead of a threaded port. Two split flange halves clamp the head to a mating pad, which makes the joint compact, vibration-resistant, and easy to orient in the field. Flange heads come in two pressure families: Code 61 is the 3000 psi series and Code 62 is the 6000 psi series; when comparing code 61 vs code 62 flange fittings, remember that the head, clamp, bolt, and pad dimensions all differ and must never be mixed.

The 87311 series is Code 61 only. Within the code 61 flange fittings family, the 87311 is the straight configuration, while 45 degree and 90 degree elbows are the 87341 and 87391 series.

When you buy flange type hydraulic hose fittings, check three things: the flange size (the head that must match your pad and clamps), the hose dash (the tail that must match your hose bore), and the hose construction (braided or spiral). The 87311 part number carries all three answers, which is why the reading rule is explained below.

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 87311 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 87311-32-24 means a 2″ flange (dash 32) with a dash-24 hose tail. 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 87312-XX-XX. Check the A, C, D, and L columns against your routing and clamp 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.

選定と発注

部品番号マトリックスの読み方

Read the series number first: 87311 means a straight SAE flange hydraulic hose fitting for braided hose. If your hose is spiral-wound (four- or six-wire heavy constructions), the same flange envelope is available as the 87312 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 87311 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. The service is free for volume buyers, and the confirmation includes the flange size, hose dash, and dimensions so your team can verify before ordering.

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

• 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

Threads, stems, and lengths 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: Is the 87311 SAE flange hydraulic hose fitting 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 87311 and 87312 series? A: 87311 is engineered for braided hose. For spiral-wound hose, order the 87312-XX-XX series, which keeps the flange envelope but uses a different tail profile.

Q: How do I read a part number like 87311-24-20? A: 87311 is the series, 24 is the flange size in 1/16″ increments (1.1/2″), and 20 is the hose dash (1.1/4″ bore, DN 32).

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 working pressure can I expect? A: The flange connection is rated nominal 3000 psi Code 61. The finished assembly is limited by the hose rating and the crimp, so always verify with the data sheet.

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 version of this fitting? A: Yes. Custom stems, surface finish, stainless material, and laser-marked part numbers are standard OEM options with a 24 h quotation response.

Q: Are test certificates available? A: Yes. Every SAE flange hydraulic hose fitting is 100% pressure tested before shipment, and MTRs plus BV/SGS third-party inspection can be arranged on request.

お見積りのお申し込み

Tell us the flange size, hose dash, hose spec (braided or spiral), and quantity, and we will confirm the 87311 or 87312 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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