Cotovelo giratório de 90° para mulheres da JIC: Série 26793W

Why This JIC Female Swivel 90° Elbow Passes the Compliance Gate

A JIC female swivel 90° elbow turns a large-bore hydraulic hose at a right angle and connects it to a male JIC 37° flare stud through a swivel nut, so the hose never twists during installation. The 26793W series from HENGHUA is a one-piece crimp elbow built to SAE J514 (ISO 8434-2), covering 5 sizes from -12 to -32 with UNF threads from 1-1/16″-12 to 2-1/2″-12. 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 fitting that solves right-angle access on stiff large-bore lines.

• SAE J514 (ISO 8434-2) JIC female end: UNF thread with an internal 74° cone seat (37° flare), sealing metal-to-metal against a male flare stud, with no O-ring and no thread sealant required.
• Swivel nut on a 90° body: the elbow turns the hose axis at a right angle, and the female nut rotates freely so tightening never winds the hose.
• Verificação do portão OEM: full dimensional and material conformance per SAE J514, with material test reports (MTR) available for every batch.

Principais vantagens

1. Right-angle turn without hose twist: the 90° bend redirects the line while the swivel nut lets the connection tighten with the hose held still, which matters most on stiff -12 to -32 lines.
2. JIC end rated up to 34.5 MPa (5,000 psi): per SAE J514 / ISO 8434-2, with every elbow hydrostatically tested before shipment.
3. Intervalo de funcionamento de -40 °C a +120 °C: tested across cold-start mobile equipment and hot industrial circuits without seal degradation.
4. Opções de ensaio de névoa salina de 96 a 1000 h: zinco trivalente (96 h), zinco-níquel (720 h) ou Dacromet (1000 h), de acordo com o seu ambiente.

Especificações Técnicas

What Is a JIC Female Swivel 90° Elbow?

A JIC female swivel 90° elbow combines two functions in one fitting: it terminates a braided hydraulic hose and turns the hose axis at a right angle, and its female end carries a swivel nut that rotates freely around the cone seat body. The port end is a JIC female UNF thread with an internal 74° cone seat. The 74° figure is the included angle of the cone, with each flank 37° from the axis, which is why JIC fittings are also called JIC 37 degree flare fittings. When a male JIC 37° flare stud is tightened into the seat, the two cone faces contact metal-to-metal and the joint seals without O-rings, washers, or sealant.

The swivel nut on the elbow exists for the same reason it exists on straight fittings: hose twist. On a large-bore line from -12 to -32, the hose is stiff and heavy, and turning a fixed nut would wind the hose while it also bends around the 90° corner. The 26793W series separates the two jobs: the elbow body does the turning, and the swivel nut does the connecting. You hold the body, thread the nut onto the male stud, and tighten with a wrench while the hose stays exactly where the routing requires. This is the fitting to specify when a right-angle port sits on a large hose that cannot be twisted into position.

Dados dimensionais e roscas

Full dimension drawings with A, C, H, 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.

Tabela completa de dimensões (matriz de referências) {#by-thread-size}

Read the table with your JIC 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 26793-[thread dash]-[hose dash]W: for example, 26793-16-16W has a 1-5/16″-12 thread and suits a -16 (25 mm) hose. The W designates the swivel nut assembly.

The series covers the large-bore segment of the JIC swivel range. Confirm your hose construction and the matching crimp data sheet with our engineers before ordering, and the correct insert depth and crimp outside diameter will be supplied with the order.

Material e tratamento térmico

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. The swivel nut is machined and tested for free rotation before the elbow is released to packing.

Pressão de funcionamento

A classificação exata para o seu número de peça e combinação de mangueiras é confirmada na ficha técnica e pelos nossos engenheiros antes do envio.

Envelope de funcionamento de pressão-temperatura

The steel elbow body holds 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 elbow will not be the limiting part.

Seleção e Encomenda

The 26793W series covers the large-bore swivel segment of JIC hydraulic hose fittings, from -12 to -32, and most orders can be placed directly from the tables below.

How to Read the Part Number Matrix

Find your JIC thread in the E column, then the hose dash size you use. The intersecting row gives the order code, for example a 1-5/16″-12 thread with a -16 hose gives 26793-16-16W. If your combination is not listed, send us both sizes; a custom swivel elbow is machined on request.

JIC Thread Size Chart

Use this chart to identify any JIC fitting by its thread and to confirm the matching hose dash sizes. It is the same mapping used in the matrix above.

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 nut configuration, then confirm the exact 26793W equivalent before you place the order. The service covers JIC 37 degree flare fittings, JIC hydraulic hose fittings, and JIC crimp fittings in your inventory, and interchange confirmation is free. The cross reference sheet is returned in PDF for your records.

Embalagem e Logística

Guia de Montagem e Utilização

Procedimento de crimpagem em quatro etapas

Crimping a swivel elbow follows the same discipline as any JIC crimp fittings job: the crimp parameters decide everything, so never start without the data sheet.

1. Corte a mangueira em ângulo reto: use a hose cutter, never a hacksaw or an angle grinder. A square, clean end is the precondition for a uniform ferrule grip on large-bore hose.
2. Marque a profundidade de inserção: consulte a profundidade de inserção correspondente à sua série de mangueiras na ficha técnica de crimpagem e marque a linha no revestimento da mangueira.
3. Lubrifique e insira: apply a thin film of assembly lubricant to the stem and the hose bore, then push the elbow into the hose until the mark meets the ferrule.
4. Fazer a crimpagem e verificar: selecione a matriz de acordo com a tabela de crimpagem, efetue a crimpagem num único movimento contínuo e, em seguida, meça o diâmetro exterior da crimpagem com um paquímetro e compare com a tolerância.

Connecting the JIC Female Swivel End

Clean the internal 74° cone seat and the mating male 37° flare stud with a lint-free cloth. Confirm the swivel nut turns freely on the body before assembly. Orient the elbow so the hose exits in the direction the routing requires, thread the nut onto the male stud by hand until the cone faces touch, then tighten the nut to the torque listed for the thread size while holding the body still. JIC 37 degree flare fittings seal by cone contact alone, which is why both cone faces must stay clean and dry. The hose stays in position through the whole sequence, which is exactly what the swivel nut is built for.

Avisos relativos à instalação

• ❌ Nunca misture acessórios e anilhas de diferentes fornecedores, mesmo que as roscas e os diâmetros das mangueiras pareçam idênticos. A geometria da haste, a dureza da anilha e os parâmetros de crimpagem diferem, e uma junta mista irá apresentar fugas ou soltar-se sob pressão.
• ❌ Nunca efetue a crimpagem sem a ficha técnica correspondente. Uma junta com crimpagem insuficiente provoca fugas, enquanto uma junta com crimpagem excessiva danifica o reforço da mangueira.
• ❌ Nunca volte a apertar um encaixe após uma tentativa falhada e nunca reutilize um encaixe retirado de uma mangueira.
• ❌ Never apply sealant to the 74° cone seat or the male flare cone. It hardens, blocks metal-to-metal contact, and contaminates the circuit.
• ❌ Never force the swivel nut with a pipe extension or impact wrench; overtightening distorts the cone seat and damages the nut.
• ❌ 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.
• ✔ Após a montagem, submeta o circuito a um ensaio de pressão a 1,5 vezes a pressão de serviço e verifique se há fugas em todas as juntas.

Personalização OEM e rastreabilidade da qualidade

Opções de personalização

• Personalização do tamanho e da rosca: non-standard thread and hose combinations, special bend angles, and custom nut configurations machined to your drawing.
• Personalização do tratamento de superfícies: zinco trivalente (96 h), zinco-níquel (720 h) ou Dacromet (1000 h) — classes de resistência ao teste de névoa salina, selecionadas de acordo com o seu ambiente e as especificações de corrosão.
• Marcação a laser: o seu logótipo, o número de peça e o código de lote marcados a laser na porca hexagonal, para garantir a rastreabilidade total no terreno.
• Opções de materiais: Aço inoxidável 304/316L para circuitos químicos, marítimos e em contacto com alimentos, com certificados de passivação.

Sistema de Qualidade e Rastreabilidade

Every batch follows a documented flow: incoming steel with mill certificate → cold forging → CNC machining → heat treatment → plating → 100% thread gauge and dimension inspection → swivel nut rotation test → 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.

Perguntas Frequentes

Q: What is a JIC female swivel 90° elbow? A: It is a crimp-on hose elbow that turns the hose at a right angle and carries a female UNF thread with an internal 74° cone seat on a swivel nut, built to SAE J514 / ISO 8434-2. The nut rotates freely so the hose does not twist during installation.

Q: When should I use a swivel elbow instead of a fixed elbow? A: Use a swivel elbow on large or stiff hose where turning a fixed nut would wind the hose, and where the hose must stay oriented while the connection is tightened. On small flexible lines a fixed elbow is usually sufficient; on -12 to -32 lines the swivel is the practical choice.

Q: What is the 74° cone seat? A: The 74° figure is the included angle of the internal cone, with each flank 37° from the axis, the same geometry as a male JIC 37° flare stud. The two cone faces seal metal-to-metal, so no O-ring or sealant is used.

Q: What hose sizes does the 26793W series cover? A: The series covers large-bore hose from -12 to -32 (DN 20 to 50). Confirm your hose construction with our engineers, and the matching crimp data sheet will be supplied with the order.

Q: Does the female end need sealant or an O-ring? A: No. The 74° cone seat seals metal-to-metal against a male JIC 37° flare stud. Keep both cone faces clean and dry, and tighten to the listed torque. An O-ring is used only on ORFS fittings, which have a flat-face seal geometry.

P: Podem fornecer-me os dados de crimpagem para a minha mangueira? A: Yes. Every order includes the crimp data sheet for your hose construction, with insert depth, crimp outside diameter, and die selection. Correct crimp parameters are what separate reliable JIC crimp fittings from early failures, so we confirm them before shipment. Send us your hose series and brand, and our engineers will confirm the crimp parameters before shipment.

Solicitar um orçamento

Tell us the JIC thread, the hose dash size, the hose construction, and the annual quantity. Whether you need stock JIC hydraulic hose fittings for distribution or a custom swivel 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.