BSP Female Compact 60° Cone 90° Elbow: 22691K Series

Why This BSP Female Compact 90° Elbow Passes the Compliance Gate

A BSP female compact 90° elbow turns a braided hydraulic hose at a right angle in roughly half the space of a standard elbow, and connects it to a male stud with a 60° external cone through a BSPP female port. The 22691K series from HENGHUA is a one-piece short-body crimp elbow built to ISO 8434-6, covering 9 sizes from -04 to -16 with G-series parallel threads from G1/4″ to G1″. Every unit is cold-forged from carbon steel, heat-treated, plated, and 100% pressure tested before shipment. For OEM buyers this elbow is a compliance gate; for maintenance teams it is the compact 60° cone termination for right-angle routing where clearance is tight.

• ISO 8434-6 60° cone seat: the BSPP female end carries a 60° cone seat that seals metal-to-metal against a male 60° external cone. The G-series thread is parallel (ISO 228-1) and does not seal by itself; the cone does the sealing.
• Compact short-body 90° geometry: the bend centre sits close to the port, which shrinks the envelope to about half the length of the standard 22691 elbow at equal thread size.
• Dual hex body: the drawing shows a hex on the elbow body (S1) and on the nut (S2), giving two wrenching positions in confined installations.
• For braided hose: the stem is engineered for braided constructions; for spiral hose, order the 22692K series.

Core Advantages

1. About half the length of the standard elbow: at equal thread size, the compact A and H dimensions reduce the space the fitting claims at the port.
2. ISO 8434-6 pressure classes: the 60° cone end is manufactured and tested per the standard (test practice ISO 19879), with the rating size-dependent and confirmed on the datasheet.
3. -40°C to +120°C operating range: the steel cone seal holds across cold-start and hot-running circuits without elastomer ageing at the joint.
4. 96 to 1000 h salt spray options: trivalent zinc (96 h), zinc-nickel (720 h), or Dacromet (1000 h), matched to your environment.

Technical Specifications

What Is a BSP Female Compact 90° Elbow?

This elbow is the compact member of the BSPP 60° cone family defined by ISO 8434-6. It carries the same sealing geometry as the standard 22691 series: a BSPP parallel thread (G series, thread form per ISO 228-1) and an internal 60° cone seat that seals metal-to-metal against a male 60° external cone. What changes is the body: the bend centre is pulled close to the nut, so the fitting occupies a fraction of the space of the standard elbow. Compare the numbers: at a G1/2″ thread with a -08 hose, the compact 22691K-08-08 measures 23.5 mm in length and 28.5 mm in height, against 41 mm and 51 mm for the standard 22691-08-08. That is roughly half the envelope, which is exactly what the K in the series name stands for.

The compact body does not change the sealing or the crimp zone: the 60° cone seat has the same geometry, and the stem keeps the insert depth required by the hose. Only the material between the port and the bend is shortened. This makes the series the right choice when a standard elbow would collide with a frame, a cover, or an adjacent component, which is common on compact power packs, small excavator valve rooms, agricultural attachments, and machine tool circuits. The drawing shows a hex on the elbow body (S1) and on the nut (S2), so the fitting can be wrenched from either side in tight access.

Dimensional Data and Threads

Full dimension drawings with A, C, H, S1, and S2 callouts are supplied as PDF and CAD (STEP/DWG) files. Because this is a crimp fitting, the two process-critical parameters are the hose insert depth and the crimp outside diameter; both are hose-series specific and are listed in the crimp data sheet that accompanies every order.

Full Dimension Table (Part Number Matrix) {#by-thread-size}

Read the table with your BSPP thread (E) and your hose size (dash). The part number is the order code; copy it directly into your inquiry or purchase order. The pattern is 22691K-[thread dash]-[hose dash]: for example, 22691K-12-12 has a G3/4″ thread and suits a -12 (20 mm) braided hose.

The dimensions shown are for the braided-hose version. For spiral hose, use the 22692K series, whose stem is longer for the extra reinforcement layers.

Material and Heat Treatment

Cold forging preserves the grain flow of the steel, which raises fatigue resistance under pressure pulsation. Each heat-treatment batch is hardness-tested and recorded, so the hardness number on the MTR matches the parts you receive.

Working Pressure

The exact rating for your part number and hose combination is confirmed on the datasheet and by our engineers before shipment.

Pressure-Temperature Operating Envelope

The steel cone seal and body hold full rated pressure across the whole temperature window. In a crimped assembly the working pressure is governed by the weakest component, normally the hose; use the hose derating curve for the system, and the fitting will not be the limiting part.

Selection and Ordering

The 22691K series covers the compact segment of BSP hydraulic hose fittings for braided hose, from -04 to -16, so most orders can be placed directly from the tables below.

How to Read the Part Number Matrix

Find your BSPP thread in the E column, then the hose dash size you use. The intersecting row gives the order code, for example a G3/4″ thread with a -12 hose gives 22691K-12-12. If your combination is not listed, send us both sizes; a custom compact 60° cone elbow is machined on request.

BSPP Thread Size Chart

Use this chart to identify the thread on your port and to confirm the matching hose dash sizes. BSPP G threads are parallel; they are identified by measuring the thread outside diameter and counting the threads per inch.

Cross Reference Service

Most maintenance teams buy against a legacy part number printed on the old drawing. Send us the OEM or distributor part number you currently use, with a photo of the fitting if possible. Our engineers identify the thread, cone angle, hose size, bend angle, and body variant, then confirm the exact 22691K equivalent before you place the order. The service covers 60° cone fittings, BSP hydraulic hose fittings, and compact elbows in your inventory, and interchange confirmation is free. The cross reference sheet is returned in PDF for your records.

Packaging and Logistics

Assembly and Use Guide

Four-Step Crimping Procedure

1. Cut the hose square: use a hose cutter, never a hacksaw or an angle grinder. A square, clean end is the precondition for a uniform ferrule grip.
2. Mark the insert depth: read the insert depth for your hose series from the crimp data sheet and mark the line on the hose cover.
3. Lubricate and insert: apply a thin film of assembly lubricant to the stem and the hose bore, then push the fitting into the hose until the mark meets the ferrule.
4. Crimp and verify: select the die per the crimp table, crimp in one continuous stroke, then measure the crimp outside diameter with a caliper and compare with the tolerance.

Connecting the 60° Cone Seat End

Clean the internal 60° cone seat and the mating male 60° external cone with a lint-free cloth. Orient the elbow so the hose exits at the angle the routing requires, thread the male stud into the BSPP female end by hand until the cone faces touch, then tighten to the torque listed for the thread size, holding S1 or S2 with a second wrench as access requires. The 60° cone contact does the sealing, so no sealant is applied to the cone faces.

Installation Warnings

• ❌ Never mix fittings and ferrules from different suppliers, even when the thread and hose sizes look identical. Stem geometry, ferrule hardness, and crimp parameters differ, and a mixed joint will leak or blow off under pressure.
• ❌ Never confuse G (BSPP parallel) threads with R (BSPT taper) threads. A G thread with a 60° cone seat seals by cone contact; a taper thread seals by thread interference and needs sealant. The two are not interchangeable.
• ❌ Never crimp without the matching crimp data sheet. An under-crimped joint weeps, and an over-crimped joint damages the hose reinforcement.
• ❌ Never recrimp a fitting after a failed attempt, and never reuse a fitting removed from a hose.
• ❌ Never apply sealant to the 60° cone faces. It hardens, blocks metal-to-metal contact, and contaminates the circuit.
• ❌ Do not use the compact body to force a hose into a bend tighter than its minimum bend radius; the compact elbow solves the port clearance, but the hose still needs its rated bend radius downstream.
• ✔ After assembly, pressure-test the circuit at 1.5x working pressure and inspect all joints for weepage.

OEM Customization and Quality Traceability

Customization Options

• Size and thread customization: non-standard G thread and hose combinations, special bend angles, and custom body variants machined to your drawing.
• Surface treatment customization: trivalent zinc (96 h), zinc-nickel (720 h), or Dacromet (1000 h) salt spray grades, selected by your environment and corrosion specification.
• Laser marking: your logo, part number, and batch code laser-marked on the hex for full field traceability.
• Material options: 304/316L stainless for chemical, marine, and food-contact circuits, with passivation certificates.

Quality and Traceability System

Every batch follows a documented flow: incoming steel with mill certificate → cold forging → CNC machining → heat treatment → plating → 100% thread gauge and dimension inspection → pressure test → laser marking → packing. The batch number on the carton links back to the raw material lot, the heat-treatment record, and the inspection report. Material test reports (MTR) are provided with every order on request, and third-party inspection reports (BV/SGS) can be arranged before shipment.

FAQ

Q: What is a BSP female compact 60° cone 90° elbow? A: It is a one-piece short-body crimp elbow for braided hose with a BSPP female port end (G series, parallel thread) carrying an internal 60° cone seat per ISO 8434-6, and a 90° body angle with a compact envelope.

Q: How much space does the compact body save? A: At equal thread and hose size, the compact A and H dimensions are roughly half those of the standard 22691 elbow. For example, the -08 size measures 23.5 mm length and 28.5 mm height, against 41 mm and 51 mm for the standard version.

Q: Does the compact body reduce the pressure rating? A: No. The compact body does not change the 60° cone seat geometry or the crimp zone; only the material between the port and the bend is shortened. The rating follows ISO 8434-6 pressure classes and the hose, as with the standard elbow.

Q: What hose does the 22691K series fit? A: The series is designed for braided hose in sizes -04 to -16 (DN 6 to 25). For spiral hose, order the 22692K series. Confirm your exact hose construction with our engineers, and the matching crimp data sheet will be supplied with the order.

Q: Why are there two hex sizes, S1 and S2? A: S1 is the hex on the elbow body and S2 is the hex on the nut. Two wrenching positions let you hold or tighten the fitting from either side in confined installations.

Q: Can you provide crimp data for my hose? A: Yes. Every order includes the crimp data sheet for your hose construction, with insert depth, crimp outside diameter, and die selection. Send us your hose series and brand, and our engineers will confirm the crimp parameters before shipment.

Request a Quote

Tell us the BSPP thread, the hose dash size, the hose construction, and the annual quantity. Whether you need stock BSP hydraulic hose fittings for distribution or a custom compact 60° cone elbow for an OEM program, the quoting process is the same. For replacement orders, send the legacy part number and a photo, and our engineers will confirm the interchange before quoting. Every elbow leaves the HENGHUA factory pressure-tested, batch-coded, and backed by a written warranty. Request your quote, crimp data sheet, or drawing pack today, and we will respond within 24 hours.