One-Piece SAE Flange 6000 PSI Code 62 Hydraulic Hose Fitting: 87611-RW Series

Why This One-Piece SAE Flange Fitting Passes the Compliance Gate

The 87611-RW is a HENGHUA one-piece SAE flange 6000 psi hydraulic hose fitting built for Code 62 flange connections. Because the flange head, the body and the hose stem are formed from a single forging, these one-piece SAE flange fittings have no brazed seam that can crack under pressure spikes, which is why original equipment builders specify SAE 6000 psi flange fittings wherever a circuit needs a compact 6000 psi joint. The flange head follows the SAE J518 / ISO 6162-2 Code 62 dimensional system, and the hose end of the series is manufactured to ISO 12151-3 as printed on the HENGHUA specification sheet.

That combination matters for three kinds of buyers:

• OEMs that need a documented, repeatable SAE 6000 psi flange fittings program with batch traceability and MTR support.
• Distributors that want one stock line for every braided-hose code 62 flange fittings application from 1/2 in. to 2 in.
• Maintenance teams that need a fitting which crimps with standard equipment and seals without guesswork.
• Service shops repairing imported machines that need one-piece SAE flange fittings with clean documentation and fast restock.

Core Advantages

1. 6000 psi working class. Rated for 6000 psi nominal service as code 62 flange fittings, with flange sizes from 1/2 in. to 2 in. (dash 08 to 32) covering the heavy end of the power train. The head profile matches standard SAE 6000 psi flange fittings clamps, so no new clamp set is needed at replacement time.
2. One-piece forged structure. These one-piece SAE flange fittings eliminate weld and braze joints, improving fatigue life under impulse and simplifying incoming inspection.
3. Braided and spiral coverage. The dimension matrix below is valid for braided hoses as series 87611-RW; for spiral hoses the same head geometry is ordered as 87612-XX-XXRW. Both versions are delivered as code 62 flange fittings with identical clamp dimensions.
4. Factory-level control. 100% pressure testing, trivalent zinc / zinc-nickel / Dacromet surface options, and a batch number on every box from the HENGHUA factory in China.

Especificaciones técnicas

What Is a One-Piece Code 62 Flange Fitting?

A Code 62 flange connection is the SAE J518 / ISO 6162-2 four-bolt flange system rated for 6000 psi nominal service. In a one-piece flange fitting, the flange head is forged as part of the body instead of being slid on or brazed, which removes a potential leak path and shortens the envelope at the hose-to-tube transition. Every code 62 flange fittings order from HENGHUA is delivered with a head profile and bolt-hole pattern that matches standard Code 62 flange clamps, so you pair the fitting with standard split flanges and cap screws. The result is a stock line of code 62 flange fittings that behaves predictably from the first assembly to the tenth, and one head drawing that covers every dash from 08 to 32 for buyers who standardize on SAE 6000 psi flange fittings.

When you buy these one-piece SAE flange fittings, three practical questions decide the part number: what flange size is on the machine, what hose bore the circuit needs, and which hose construction is specified. The 87611-RW straight configuration answers those questions with a direct, straight path from the hose tail to the flange face, which makes it the default choice for pump-to-valve and valve-to-tank lines where no turn is required. If you need a 45 degree or 90 degree change of direction, use the matching 87641-RW or 87691-RW elbow series with the same flange and hose dash logic. Every HENGHUA order of SAE 6000 psi flange fittings ships with the part number, the crimp data sheet and the batch record in one pack.

Dimensional Data

The printed specification sheet defines the envelope with the letters below, covering the SAE J518 code 62 flange family from 1/2 in. to 2 in. C and L in each row are the exact values the clamp halves close over. All dimensions are in millimeters.

Full Dimension Table (Part Number Matrix)

Read the matrix this way. The part number is built as series – flange dash – hose dash: 87611-16-16RW means series 87611-RW, 1 in. Code 62 flange (dash 16) and a 1 in. (DN 25) hose bore. DN is the nominal hose bore in millimeters and the dash value is the same bore expressed in 1/16 in. increments, so both columns must agree in every row.

Notes printed on the specification sheet: 1. The part numbers above are for braided hoses. 2. For use with spiral hoses, change the series number to 87612-XX-XXRW.

One point to check at ordering time: the last row is printed in the catalog as 87911-32-32RW. It is the 2 in. flange, dash 32 hose row of the 87611-RW family, so quote the exact part number from your drawing and let our engineers confirm the stamping before mass production.

Material and Heat Treatment

These one-piece SAE flange fittings are machined in one setup after heat treatment, so the flange face, the bolt-hole circle and the hose stem stay concentric. Raw material certificates and heat treatment records are kept per batch and can be attached to the shipment on request.

Working Pressure and Operating Envelope

These code 62 flange fittings are engineered for the 6000 psi class, and the crimp parameters that unlock that rating are confirmed against the exact hose you select. Do not assume a rating from the flange head alone: the head is sized for 6000 psi service, but the complete assembly must be validated with the hose, the crimp diameter and the test records together. That is the difference between a number on paper and a field-proven 6000 psi hydraulic flange connection.

Selection and Ordering

How to Read the Part Number Matrix

Start from the machine side: measure the flange, which tells you the flange dash (08, 12, 16, 20, 24 or 32). Then measure the hose bore, which tells you the hose dash and the DN value in the same row. Finally choose the series by hose construction: 87611-RW for braided hoses or 87612-XX-XXRW for spiral hoses. The A, C, D and L values in the row are the envelope you use for routing and clamp layout. When hose and fitting are supplied together, HENGHUA builds the complete code 62 flange fittings assembly, pressure-tests it and stamps the batch number on the collar.

Choosing the Correct Hose Series

The matrix is dimensionally identical for braided and spiral hose families because the head geometry and the flange sizes do not change. Braided hose is the standard choice up to the 6000 psi class in most mobile circuits; spiral hose is preferred where impulse severity or bend fatigue demands a four- or six-spiral reinforcement. For braided hose, order the 87611-RW part numbers printed in the table. For spiral hose, order the same size combination as 87612-XX-XXRW so the stem, crimp pocket and skive length match the reinforcement layer you are using. If your purchasing system lists SAE 6000 psi flange fittings by series only, add the dash suffix from the matrix above. Send us the hose brand and the hose dash, and we will confirm the correct series before you order. Whether braided or spiral, they are still code 62 flange fittings on the machine side of the joint.

Flange Size and Dash Size Chart

A 2 in. SAE J518 code 62 flange head is always dash 32, whatever hose bore sits behind it.

Cross Reference Service

Do you hold an old part number, a worn sample or a stamped drawing without a clear series? Send the photo, the stamping or the drawing to our engineers and we will map it to the equivalent 87611-RW configuration. Many of these legacy numbers turn out to be SAE 6000 psi flange fittings under a different marking, and the dimension matrix above is the fastest way to confirm the dash. This cross reference service is free and normally answered within 24 hours, and it covers legacy and OEM part numbers from machines built in Europe, North America and Asia, including SAE flange hose fittings from machine lines that are no longer in production. When the equivalent is confirmed, we quote with the HENGHUA part number, the matching 87612-XX-XXRW spiral option, and the surface finish you specify.

Packaging and Logistics

Assembly and Use Guide

Four-Step Crimping Procedure

1. Cut the hose squarely and remove the outer cover to the skive length stated in the crimp data sheet.
2. Mark the insertion depth on the hose so the stem seats to the same position on every assembly.
3. Apply lubricant and push the hose onto the stem until the mark is reached.
4. Crimp with the correct die set, then verify the crimp outside diameter with a caliper against the value on the data sheet supplied with every order.

Mounting the Flange Connection

Align the flange face of the fitting with the mating flange head and seat the O-ring or gasket in its groove before the clamp halves are closed. Fit the split flange clamps over the head, insert the cap screws, and tighten diagonally in two or three passes to the torque given in the flange data sheet. After pressure is applied, re-check the bolts once and look for any sign of seal extrusion at the joint. On code 62 flange fittings mounted in tight manifolds, keep the clamp halves aligned and the cap screw threads clean before the final torque pass.

Installation Warnings

• Never mix hoses, fittings or ferrules from different sources in one crimped assembly; compatibility is verified as a set.
• Braided-hose fittings (87611-RW) and spiral-hose fittings (87612-XX-XXRW) are not interchangeable even when the dash sizes match.
• Flange bolts, clamp halves and O-rings are ordered separately from the fitting; confirm their specification before assembly.
• Crimping is a one-way operation. If the crimp diameter is wrong, cut the hose and start again; do not re-crimp a pulled ferrule.
• Do not reuse an O-ring that shows cuts or permanent set, and do not over-torque the flange bolts to stop a leak.

OEM Customization and Quality Traceability

Customization Options

Threads, stem length, and the hose-dash combinations in the table can be adjusted for production programs. Surface finish can be switched between trivalent zinc, zinc-nickel and Dacromet depending on the environment, and the head can be laser-marked with your logo, the batch number or a private label part number. Stainless steel 304 or 316L versions are available when the circuit is exposed to washdown or corrosive media. OEM programs that standardize on SAE 6000 psi flange fittings can lock the zinc-nickel option and the laser marking into the drawing.

Quality and Traceability System

Material receiving, cold forging, machining, heat treatment, surface treatment, 100% inspection, pressure testing, marking and packing are each recorded against the batch number. Every batch can be traced back to the raw material heat number and the heat treatment records, so a field question is answered from the file, not from memory. Third-party inspection such as BV or SGS can be arranged on request before shipment.

FAQ

What does the RW suffix mean on these one-piece SAE flange fittings? RW identifies the one-piece construction of the series. The flange head, body and hose stem are formed from a single forging, so there is no welded or brazed joint inside the fitting. That is why these one-piece SAE flange fittings carry a cleaner inspection history than two-piece welded designs.

Is the 87611-RW a code 62 flange fitting? Yes. It is a 6000 psi nominal SAE Code 62 flange series with the head profile dimensioned to SAE J518 / ISO 6162-2, and the hose end is manufactured to ISO 12151-3 as printed on the specification sheet. In short, the head, the bolt pattern and the clamp dimensions follow the SAE J518 code 62 flange standard.

Can I use this fitting with spiral hose? Not with the 87611-RW part number. The table is printed for braided hoses; for spiral hose, order the same flange and hose dash as 87612-XX-XXRW so the stem and crimp pocket match the spiral reinforcement.

How do I know the flange size of my SAE 6000 psi flange fittings? Measure the flange head across the bolt holes or read the dash from the machine drawing. The chart in the Selection and Ordering section maps flange dash 08 to 32 against the 1/2 in. to 2 in. sizes. Every size in that chart is stocked as one-piece SAE flange fittings, so the head you measure is the head we ship.

Which seal do I need between the flange and the mating surface? A Code 62 flange joint normally uses an O-ring seated in the groove of the mating flange head. Confirm the O-ring cross section with the flange clamp data sheet and replace it whenever the joint is opened.

Are the flange bolts supplied with the fitting? Flange bolts, clamp halves and seals are ordered separately. We can supply the matching Code 62 clamp halves and bolt sets for the same flange dash when you request them in the order. All SAE flange hose fittings in this family share the split-clamp hardware of the matching flange dash.

What documents come with a production order? Each batch carries a batch label, and the MTR, pressure test records and packing list are available on request. Third-party inspection such as BV or SGS can be arranged before shipment.

How fast can I get a quote for a custom 6000 psi hydraulic flange assembly? Send the drawing or the legacy part number with the hose bore and flange size, and our engineers will reply with a quotation within 24 hours. Samples are available for global delivery.

Solicitar un presupuesto

Tell us the flange size, the hose bore, the hose construction and the quantity, and we will confirm the 87611-RW or 87612-XX-XXRW part number, the crimp data sheet and the surface finish in one reply. OEM and legacy replacement inquiries are handled by the same engineers who make the parts, so the answer comes with production knowledge, not a sales script. Expect an answer built on SAE flange hose fittings know-how: flange dash, hose dash, series and surface finish, confirmed by the engineers who make the parts. HENGHUA answers within 24 hours and supports your program with samples, MTR and batch traceability from the factory in China. Request a quote for these one-piece SAE flange fittings today and put a documented 6000 psi hydraulic flange connection behind every hose assembly.

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