45 Degree Elbow SAE Flange 6000 PSI Interlock Hydraulic Hose Fitting: 87643 Series

Why This 45 Degree Elbow SAE Flange 6000 PSI Interlock Hydraulic Hose Fitting Passes the Compliance Gate

The 87643 Series is a 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting built for spiral-wound hydraulic hose in space-limited circuits. The flange head follows the SAE J518 / ISO 6162-2 Code 62 split-flange profile, and the hose end meets the ISO 12151-3 connection standard printed on the series drawing. The 45 degree outlet turns the hose path without the full drop of a 90 degree elbow, which shortens hose length and softens the bend stress on the assembly.

• Code 62 flange class for 6000 psi systems, with size-dependent pressure grading per ISO 6162-2 / SAE J518.
• Interlock ferrule geometry matched to 4-spiral and 6-spiral spiral hoses.
• Nine standard combinations cover 3/4″ to 2″ flanges with -12 to -32 dash hose bores.
• Carbon steel or stainless steel bodies with three anti-corrosion finish options.

Core Advantages

1. Compact routing with spiral-hose grip. The 45 degree outlet clears obstacles that a straight fitting cannot, while the interlock ferrule keeps the spiral reinforcement loaded under impulse cycling. This 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting cuts hose length and removes one potential chafe point from the layout.

1. Code 62 flange head, dimensionally consistent. Code 62 flange fittings share one flange-head geometry across the straight and elbow series, so one clamp-half family works across the range.

1. Nine standard combinations from one matrix. Flange sizes 3/4″ to 2″ pair with hose bores DN 20 to DN 50, covering most tight-route spiral-hose layouts without a custom part.

1. Traceability you can audit. Every batch links to heat number, heat-treatment records, and test reports. BV/SGS third-party inspection can be arranged per order.

Technical Specifications

What Is a 45 Degree Elbow SAE Flange 6000 PSI Interlock Hydraulic Hose Fitting?

A 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting connects a spiral-wound hose to a Code 62 flange port with a 45 degree outlet direction. “SAE flange 6000 psi” names the Code 62 split-flange head built for the 6000 psi flange class; “interlock” names the ferrule style that interlocks with spiral reinforcement during crimping. In the SAE 6000 psi flange fittings group, this series is the 45 degree outlet option.

The elbow version matters when a straight fitting would force the hose into a tight bend radius. Flange fittings for spiral hose should be routed with generous bends, and a 45 degree outlet is often the difference between a clean sweep and a kink-prone layout.

Hose Series Selection

Choose the outlet angle and the hose-end version by your layout and hose construction:

• 87643 Series: 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting for spiral (4-spiral and 6-spiral) hoses.
• 87613 Series (sibling): straight SAE flange 6000 psi interlock hydraulic hose fitting for spiral hoses.
• 87693 Series (sibling): 90 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting for spiral hoses.
• 87611 Series (sibling): 6000 psi Code 62 flange fitting for braided-hose applications, without the interlock ferrule.

Never mix an interlock fitting with a braided-hose ferrule, and never swap crimp die sets between series.

Dimensional Data

Dimension letters follow the HENGHUA series drawing convention. Confirm the final reading against the series drawing attached to your quotation.

Full Dimension Table (Part Number Matrix)

Every row below is a standard 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting combination from the printed series chart. Values are transcribed from the HENGHUA specification drawing; all dimensions are in millimeters. Read the table by flange size first, then by hose bore.

No footnote is printed on the 87643 dimension chart. All listed combinations are flange fittings for spiral hose with the interlock ferrule; braided-hose orders use the sibling 87611 series at the same pressure class.

Material and Heat Treatment

Select the surface by operating environment: trivalent zinc for standard indoor and mobile duty, zinc-nickel for wet and salt-laden duty, Dacromet for high-corrosion and under-chassis applications.

Working Pressure and Operating Envelope

• Flange class: Code 62, i.e. the 6000 psi SAE flange class. Actual allowable pressure is size-dependent per ISO 6162-2 / SAE J518 and is confirmed on the HENGHUA data sheet for each size.
• Assembly rating: the working pressure of a crimped SAE flange 6000 psi interlock hydraulic hose fitting assembly is governed by the spiral hose rating, the flange size, and the crimp quality. The weakest component always sets the system limit.
• Temperature: typical operating envelope -40 C to +120 C; system derating is decided by the hose cover and seal compounds.
• Verification: every fitting is 100% pressure tested and thread-gauged before packing. The crimp data sheet is provided with every order.

Selection and Ordering

How to Read the Part Number Matrix

The part number reads series – flange dash – hose dash, and every dash equals 1/16 inch.

• 87643-32-32: series 87643, flange dash 32 = 2″ flange, hose dash 32 = 2″ hose bore (DN 50).
• 87643-12-12: series 87643, flange 3/4″, hose -12 (DN 20).
• 87643-24-20: series 87643, flange 1.1/2″, hose -20 (DN 32).

Flange dash and hose dash are independent: one flange size can carry several hose bores, as the matrix above shows.

Flange Size and Dash Size Chart

The FLANGE SIZE column uses the printed catalog notation (1.1/4″, 1.1/2″), which means 1-1/4″ and 1-1/2″ in conventional drawing notation.

Cross Reference Service

Send a legacy or OEM part number, a sample, or a drawing, and HENGHUA identifies the matching 87643 combination for you.

• Interchange service for legacy/OEM part numbers without naming any third-party brand.
• Verification by flange OD, bolt-hole spread, hose dash, outlet angle, and overall length before quotation.
• Photo and dimension confirmation accepted when the original number is unreadable.

Packaging and Logistics

Quote response within 24 hours. Sample orders and small mixed orders are accepted for pre-production validation.

Assembly and Use Guide

Four-Step Crimping Procedure

1. Cut the spiral hose square with a sharp hose cutter; remove any loose wire or rubber dust from the cut face.
2. Mark the insertion depth on the hose with the depth gauge supplied for the fitting size.
3. Apply assembly lubricant to the hose end and the fitting stem, then push the hose to the depth mark with a steady rotation.
4. Crimp with the dedicated interlock die set, then verify the crimp outside diameter with a caliper against the crimp data sheet provided with every order.

Mounting the Flange Connection

1. Confirm the flange head and the clamp halves match: code 62 flange fittings use Code 62 (FS) clamp halves.
2. Seat the O-ring in the flange groove; keep the O-ring clean and lightly lubricated.
3. Align the flange head squarely in the clamp halves so the head sits flat with no gap; orient the 45 degree outlet before final torque.
4. Tighten the bolts in a cross pattern, in two or three passes, to the torque given on the HENGHUA data sheet.

Installation Warnings

• ❌ Never mix Code 61 (3000 psi) and Code 62 (6000 psi) flange parts: the heads, clamp halves, and O-ring grooves are different sizes.
• ❌ Never use interlock hydraulic hose fittings with braided hose, and never use a braided-hose ferrule on spiral hose.
• ❌ Do not force the hose into a tighter bend to compensate for the outlet angle; re-check the routing or step up to the 90 degree series.
• ❌ Do not mix hose, ferrules, or die sets from different brands or different series; HENGHUA assemblies are validated as a set.
• ❌ Do not reuse a fitting after a failed crimp; crimping is a one-shot operation.
• ❌ Flange bolts, clamp halves, and O-rings are ordered separately for the specific flange size; do not substitute hardware by feel.
• ✔ Verify the crimp OD with a caliper on every assembly, and keep the record with the batch number.

OEM Customization and Quality Traceability

Customization Options

• Thread, length, and profile modifications to fit your routing and port layout.
• Surface options: trivalent zinc, zinc-nickel, or Dacromet per environment.
• Material options: 304 / 316L stainless for corrosive duty.
• Laser marking: your logo, part number, and batch code on the hex or flange face.

Quality and Traceability System

Raw material incoming inspection, cold forging, machining, heat treatment, surface treatment, 100% dimension and pressure testing, marking, and packing are all recorded by batch. A batch number traces back to the steel heat number, heat-treatment records, and inspection reports, so a field claim is answered with documents, not guesses.

FAQ

1. Is the 87643 Series a 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting for spiral hose?

Yes. It is one of the SAE 6000 psi flange fittings with a Code 62 flange head, a 45 degree outlet, and an interlock ferrule engineered for spiral hose. The hose end follows ISO 12151-3 as printed on the series drawing.

1. When should I choose the 45 degree elbow instead of a straight or 90 degree fitting?

Choose the 45 degree elbow when the port axis and the hose run are offset but a 90 degree drop would over-bend the hose or waste space. The straight 87613 and 90 degree 87693 series cover the other two cases in the same Code 62 family; all three are SAE 6000 psi flange fittings sharing one flange-head geometry.

1. Which hoses are interlock hydraulic hose fittings designed for?

Interlock hydraulic hose fittings are designed for spiral-wound hose, typically 4-spiral and 6-spiral constructions. Flange fittings for spiral hose must never be crimped onto braided reinforcement. If your hose is braided, order the sibling 87611 series at the same 6000 psi class.

1. How do I read a part number such as 87643-20-16?

The code is series – flange dash – hose dash. 87643-20-16 means series 87643, flange dash 20 (1.1/4″ flange), hose dash 16 (DN 25). When in doubt, measure the flange OD and the hose OD and send both to HENGHUA sales.

1. What seals the flange connection, and how are the bolts supplied?

The Code 62 flange head seals with an O-ring seated in the flange-head groove; code 62 flange fittings all follow the same sealing principle. Clamp halves, bolts, and O-rings are ordered separately for the flange size, and the tightening torque is stated on the HENGHUA data sheet.

1. Can I order the 87643 in stainless steel or with a custom finish?

Yes. 304 / 316L stainless and trivalent zinc, zinc-nickel, or Dacromet surfaces are available, plus laser marking of your logo and batch code. State the environment when you request a quote.

1. What happens if a crimp is rejected during inspection?

A rejected crimp is not re-crimped; the ferrule is cut off and a fresh assembly is made. The crimp data sheet provided with every order gives the OD target used for the go/no-go check.

1. What documents come with the order for traceability?

MTR is available on request, together with batch-to-heat records and pressure test reports. BV/SGS third-party inspection can be arranged before shipment.

Request a Quote

Send the hose type and dash, the flange size, the required outlet angle, quantity, and application pressure, and HENGHUA will confirm the correct 45 degree elbow SAE flange 6000 psi interlock hydraulic hose fitting within 24 hours.

• OEM programs: drawing review, marking, and packaging per your spec.
• Distributors: mixed-size orders, stock support, and export documentation.
• Samples: available for pre-production validation, shipped globally.

Every quotation includes the crimp data sheet, so your assembly line starts with verified numbers.

Browse the full Flange Fittings range for the complete family, or contact us to request a quote, mill test reports, and samples.