BSP Female Compact Push-On 90° Elbow: 22691K-PO Series

Why This Compact Push-On Elbow Passes the Compliance Gate

A compact push-on 90° elbow turns a low-pressure hose line at a right angle in a tight space, and connects it to a male BSPP stud with a 60° external cone without a crimping machine. The 22691K-PO series from HENGHUA is a one-piece short-body elbow: the port end carries a BSPP female G thread with an internal 60° cone seat per ISO 8434-6, and the hose end is a barbed tail that pushes into the hose and is secured with a hose clamp. The compact body keeps the elbow footprint small, which is what the K in the series name stands for. The series covers 4 sizes from -04 to -12 with G threads from G1/4″ to G3/4″. Every unit is cold-forged from carbon steel, heat-treated, plated, and 100% pressure tested before shipment. For maintenance teams this is the elbow that repairs a tight-corner BSP low-pressure line on site in minutes, with hand tools only.

• 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.
• Compact short-body 90° geometry: the bend centre sits close to the port, keeping the elbow inside a small envelope for tight installations.
• Barbed push-on hose end: the barbed tail grips the hose bore, and a hose clamp locks the joint, so no crimper, no ferrule, and no crimp data sheet are needed.
• OEM gate check: full dimensional and material conformance with thread form per ISO 228-1, and material test reports (MTR) available for every batch.

Core Advantages

1. Tool-free assembly in tight spaces: cut, push, clamp, and the elbow is ready; no crimper fits into a cramped corner, but a hand tool does.
2. Compact 90° footprint: the short-center body routes the hose at a right angle with minimal clearance, per the compact drawing geometry.
3. -40°C to +120°C operating range: suited to return, drain, and cooler circuits across mobile and industrial equipment.
4. 96 to 1000 h salt spray options: trivalent zinc (96 h), zinc-nickel (720 h), or Dacromet (1000 h), matched to your environment.

A Note on Pressure Class

The 22691K-PO series is engineered for low-pressure circuits, not for high-pressure working lines. The barbed hose joint is the rating limit: with a correctly selected hose and clamp, typical working pressure is about 1.0-3.5 MPa (150-500 psi) depending on hose construction and size. Return lines, drain lines, oil cooler circuits, air lines, and fuel lines are the intended duty. For high-pressure BSP working lines in tight spaces, use the crimp version of the 22691K series, which is rated to the ISO 8434-6 class. We state this limit plainly so your assembly is never pushed past its safe duty.

Technical Specifications

What Is a Compact Push-On 90° Elbow with a 60° Cone Seat?

This elbow combines three practical ideas in one fitting. First, the 90° bend turns the hose axis at a right angle, so the line can reach a port whose axis is perpendicular to the hose run. Second, the body is compact: the bend centre sits close to the nut end, which keeps the whole elbow inside a small envelope, the detail that matters when the fitting lives between a component and a frame or under a cover. Third, the hose end is a push-on barbed tail: the barbs grip the hose bore and a hose clamp locks the joint, so the elbow is assembled with hand tools, no crimping machine required.

The port end is a BSPP 60° cone connection per ISO 8434-6: a parallel G thread (thread form per ISO 228-1) with an internal 60° cone seat. When a male stud with a 60° external cone is tightened into the seat, the two cone faces contact metal-to-metal and the joint seals without O-rings or thread sealant in the standard version. The G thread is parallel and does not seal by interference; the cone does the sealing. This is why a 60° cone seat must never be interchanged with a BSPT taper thread, which seals by thread interference instead. Use the elbow when a low-pressure line must turn at a right angle onto a male 60° cone stud, which is common on oil coolers, filter heads, cylinder drain ports, and compact power packs. The 22691K-PO series is the push-on version of the 22691K compact crimp elbow, so the same tight-corner geometry is available with or without a crimping machine on site.

Dimensional Data and Threads

Full dimension drawings with A, C, H, S1, and S2 callouts are supplied as PDF and CAD (STEP/DWG) files.

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]PO: for example, 22691K-08-08PO has a G1/2″ thread and suits a -08 (12 mm) push-on hose.

The series covers the push-on segment of the compact BSP elbow range. Confirm your hose construction and clamp selection with our engineers before ordering, and the recommended clamp width and torque will be supplied with the order.

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

For high-pressure circuits, select the crimp version of the 22691K series instead. The exact rating for your hose and clamp combination is confirmed by our engineers before shipment.

Pressure-Temperature Operating Envelope

The steel elbow body is not the limiting component in this design; the hose, the clamp, and the hose cover material govern the operating window. Use the hose manufacturer’s derating curve for the system.

Selection and Ordering

The 22691K-PO series covers the compact push-on segment of BSP hydraulic hose fittings, from -04 to -12, and 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-12-12PO. If your combination is not listed, send us both sizes; a custom compact push-on 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 barb configuration, then confirm the exact 22691K-PO equivalent before you place the order. The service covers 60° cone fittings, BSP hydraulic hose fittings, and push-on hose fittings 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 Push-On Procedure

1. Cut the hose square: use a hose cutter or a sharp knife; a square, clean end lets the barbs seat evenly around the bore.
2. Lubricate lightly: apply a thin film of assembly lubricant to the barbs and the hose bore, so the elbow slides in without tearing the inner cover.
3. Push on to the shoulder: push the elbow into the hose until the hose end meets the shoulder; the barbs must be fully covered by the hose.
4. Clamp and verify: fit the hose clamp over the hose at the first barb groove and tighten to the recommended torque, then pull on the hose to confirm the joint holds.

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 in the direction 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 use this push-on elbow on high-pressure working lines. The barbed joint is rated for low-pressure duty only, typically up to about 3.5 MPa depending on the hose and clamp.
• ❌ Never assemble without a hose clamp. The barbs alone are not a rated seal; the clamp is part of the joint.
• ❌ Never confuse the 60° cone seat with a BSPT taper thread. The cone seat seals by cone contact against a male cone stud; a taper thread seals by thread interference and needs sealant. The two are not interchangeable.
• ❌ Never reuse an elbow pulled out of a hose, and never assemble over a damaged or cut hose end.
• ❌ Do not use the elbow to force a hose into a bend tighter than its minimum bend radius; the elbow solves port access, but the hose still needs its rated bend radius downstream.
• ❌ Never apply sealant to the 60° cone faces. It hardens, blocks metal-to-metal contact, and contaminates the circuit.
• ✔ After assembly, pressure-test the circuit and inspect the clamp seating for weepage.

OEM Customization and Quality Traceability

Customization Options

• Size and thread customization: non-standard G thread and hose combinations, custom barb counts, and special bend angles 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 push-on 90° elbow? A: It is a one-piece short-body elbow with a BSPP female end carrying an internal 60° cone seat per ISO 8434-6, a compact 90° body for tight-corner routing, and a barbed tail that pushes into a low-pressure hose, secured with a hose clamp. No crimping machine is needed.

Q: What does PO mean in the part number? A: PO designates the push-on (barbed) version of the series, as opposed to the crimp version. The hose end uses barbs and a clamp instead of a ferrule and a crimp.

Q: What does K mean in the part number? A: K designates the compact body version: the bend centre sits close to the nut end, keeping the elbow inside a small envelope for tight installations.

Q: What pressure is this elbow rated for? A: The 60° cone end itself conforms to ISO 8434-6, but the assembled barbed line is a low-pressure design, typically rated about 1.0-3.5 MPa (150-500 psi) depending on hose construction, size, and clamp. It is intended for return, drain, cooler, air, and fuel circuits, not high-pressure working lines.

Q: What is the 60° cone seat? A: The port end carries an internal 60° cone seat that seals metal-to-metal against a male stud with a 60° external cone. The G thread is parallel and only holds the connection; the cone does the sealing, so no O-ring or sealant is used in the standard version.

Q: Can I use this elbow without a clamp? A: No. The clamp is part of the rated joint. Assemble the barbs fully into the hose, then fit the clamp over the hose at the barb groove and tighten to the recommended torque.

Solicitar um orçamento

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 push-on 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, clamp recommendation, or drawing pack today, and we will respond within 24 hours.