{"id":4752,"date":"2026-09-16T08:09:33","date_gmt":"2026-09-16T08:09:33","guid":{"rendered":"https:\/\/www.henghuahose.com\/?post_type=product&p=4752"},"modified":"2026-09-16T09:48:47","modified_gmt":"2026-09-16T09:48:47","slug":"90-degree-elbow-metric-male-o-ring-adapter-1e9","status":"publish","type":"product","link":"https:\/\/www.henghuahose.com\/de\/product\/90-degree-elbow-metric-male-o-ring-adapter-1e9\/","title":{"rendered":"90 Degree Elbow Metric Male O-Ring Adapter 1E9 (ISO 6149 Metric O-Ring Stud End)"},"content":{"rendered":"
\"90<\/figure>\r\n\r\n\r\n\r\n\r\n\r\n

Why This 90 Degree Elbow Metric Male O-Ring Adapter 1E9 Passes the Compliance Gate<\/h2>\r\n\r\n\r\n\r\n

The 90 degree elbow metric male O-ring adapter 1E9<\/strong> turns a hydraulic connection through a right angle between two ISO 6149 metric O-ring ports. Both ends are metric male O-ring stud ends of the same thread size, each sealed by an elastomer O-ring in a shoulder groove, so the elbow changes the direction of the line without introducing a cone seat, a pipe thread or any thread sealant.<\/p>\r\n\r\n\r\n\r\n

A right-angle elbow is usually chosen because of space: it lets a hose or tube leave a manifold at 90 degrees to the port axis, and it keeps the bend radius away from the machine frame. Eleven codes cover threads from M12X1.28 to M45X2 with O-rings from 8X1.9 to 38X3.1.<\/p>\r\n\r\n\r\n\r\n

Core Advantages<\/h3>\r\n\r\n\r\n\r\n
    \r\n
  1. Right-angle routing from a metric port<\/strong> – the 90 degree elbow metric male O-ring adapter 1E9 changes direction in one joint instead of using a straight adapter plus a bent tube.<\/li>\r\n
  2. Two identical metric male O-ring ends<\/strong> – the E end and the F end share the same thread and the same O-ring, so the part is reversible and one spare seal fits both ends.<\/li>\r\n
  3. Eleven sizes from M12X1.28 to M45X2<\/strong> – covering the small control-block ports and the larger mobile-equipment ports in one series.<\/li>\r\n
  4. O-ring face seal, not thread seal<\/strong> – sealing takes place at the shoulder against the port face, so no tape or sealant is needed anywhere in the joint.<\/li>\r\n
  5. Carbon steel with plated finish<\/strong> – bodies are machined from carbon steel and supplied with a protective plated finish as standard practice, with stainless steel on request.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

    Technical Specifications<\/h2>\r\n\r\n\r\n\r\n

    What Is a 90 Degree Elbow Metric Male O-Ring Adapter?<\/h3>\r\n\r\n\r\n\r\n

    The 90 degree elbow metric male O-ring adapter 1E9 is a one-piece forged or machined elbow whose two ends are metric male stud ends sealed by O-rings compressed between each shoulder and a chamfered port mouth, as used on ISO 6149 metric O-ring ports. It is not a 60 degree cone seat elbow and it is not a 74 degree cone elbow, even where the thread size matches.<\/p>\r\n\r\n\r\n\r\n

    Because it is a single body rather than two fittings joined by a threaded tee or elbow, the assembly has fewer joints to leak and one less threaded connection to torque. ISO 6149-2 and ISO 6149-3 define the stud end dimensions and ISO 6149-1 defines the mating ports.<\/p>\r\n\r\n\r\n\r\n

    Connection 1 – Port Side E: Metric Male O-Ring Stud End<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Item<\/th>\r\nDetail<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    Interface type<\/td>\r\nMetric male stud end, O-ring face seal, on the first leg of the elbow<\/td>\r\n<\/tr>\r\n
    Sealing method<\/td>\r\nElastomer O-ring in a shoulder groove, compressed against the port face<\/td>\r\n<\/tr>\r\n
    Thread form<\/td>\r\nMetric fine pitch, size-specific (for example M14X1.5, M27X1.5, M45X2)<\/td>\r\n<\/tr>\r\n
    Reference standard<\/td>\r\nISO 6149-2 \/ ISO 6149-3 stud end; ISO 6149-1 mating port<\/td>\r\n<\/tr>\r\n
    Size range<\/td>\r\nM12X1.28 to M45X2<\/td>\r\n<\/tr>\r\n
    O-ring sizes<\/td>\r\n8X1.9 up to 38X3.1, see the dimension matrix below<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Connection 2 – Port Side F: Metric Male O-Ring Stud End (Second Leg)<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Item<\/th>\r\nDetail<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    Interface type<\/td>\r\nMetric male stud end, O-ring face seal, on the second leg, 90 degrees to the first<\/td>\r\n<\/tr>\r\n
    Sealing method<\/td>\r\nElastomer O-ring in a shoulder groove, compressed against the port face<\/td>\r\n<\/tr>\r\n
    Thread form<\/td>\r\nSame metric fine pitch as the E end for every catalogue size<\/td>\r\n<\/tr>\r\n
    Reference standard<\/td>\r\nISO 6149-2 \/ ISO 6149-3 stud end; ISO 6149-1 mating port<\/td>\r\n<\/tr>\r\n
    Size range<\/td>\r\nM12X1.28 to M45X2<\/td>\r\n<\/tr>\r\n
    O-ring sizes<\/td>\r\nSame O-ring as the E end, so one spare seal services both ports<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Because both ends are identical and the body is symmetric, this elbow can be oriented in either direction, which makes it easier to plan the routing before the machine is assembled.<\/p>\r\n\r\n\r\n\r\n

    Dimensional Data<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Symbol<\/th>\r\nMeaning<\/th>\r\nUnit<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    PART NO.<\/td>\r\nCatalogue order code for the size<\/td>\r\n–<\/td>\r\n<\/tr>\r\n
    THREAD E, F<\/td>\r\nMetric male thread at both ends of the elbow<\/td>\r\nmm pitch notation<\/td>\r\n<\/tr>\r\n
    O-RING E, F end<\/td>\r\nO-ring designation used at both ends<\/td>\r\nmm (ID x cross-section)<\/td>\r\n<\/tr>\r\n
    A<\/td>\r\nLength from the face of the first port end to the centreline of the second leg<\/td>\r\nmm<\/td>\r\n<\/tr>\r\n
    B<\/td>\r\nLength from the face of the second port end to the centreline of the first leg<\/td>\r\nmm<\/td>\r\n<\/tr>\r\n
    S1<\/td>\r\nHex across flats of the body, the wrench size<\/td>\r\nmm<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Full Dimension Table (Part Number Matrix)<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    PART NO.<\/th>\r\nTHREAD E, F<\/th>\r\nO-RING E, F end<\/th>\r\nA (mm)<\/th>\r\nB (mm)<\/th>\r\nS1 (mm)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    1E9-12<\/td>\r\nM12X1.28<\/td>\r\n8X1.9<\/td>\r\n20.5<\/td>\r\n20.5<\/td>\r\n12<\/td>\r\n<\/tr>\r\n
    1E9-14<\/td>\r\nM14X1.5<\/td>\r\n10X1.9<\/td>\r\n22.5<\/td>\r\n22.5<\/td>\r\n14<\/td>\r\n<\/tr>\r\n
    1E9-16<\/td>\r\nM16X1.5<\/td>\r\n11X1.9<\/td>\r\n24<\/td>\r\n24<\/td>\r\n17<\/td>\r\n<\/tr>\r\n
    1E9-18<\/td>\r\nM18X1.5<\/td>\r\n13X1.9<\/td>\r\n26<\/td>\r\n26<\/td>\r\n19<\/td>\r\n<\/tr>\r\n
    1E9-22<\/td>\r\nM22X1.5<\/td>\r\n16X2.4<\/td>\r\n29<\/td>\r\n29<\/td>\r\n22<\/td>\r\n<\/tr>\r\n
    1E9-27<\/td>\r\nM27X1.5<\/td>\r\n20X2.4<\/td>\r\n32.5<\/td>\r\n32.5<\/td>\r\n27<\/td>\r\n<\/tr>\r\n
    1E9-30<\/td>\r\nM30X1.5<\/td>\r\n24X2.4<\/td>\r\n35.5<\/td>\r\n35.5<\/td>\r\n30<\/td>\r\n<\/tr>\r\n
    1E9-36<\/td>\r\nM36X2<\/td>\r\n30X3.1<\/td>\r\n42<\/td>\r\n42<\/td>\r\n36<\/td>\r\n<\/tr>\r\n
    1E9-39<\/td>\r\nM39X2<\/td>\r\n32X3.1<\/td>\r\n47.5<\/td>\r\n47.5<\/td>\r\n41<\/td>\r\n<\/tr>\r\n
    1E9-42<\/td>\r\nM42X2<\/td>\r\n35X3.1<\/td>\r\n49.5<\/td>\r\n49.5<\/td>\r\n41<\/td>\r\n<\/tr>\r\n
    1E9-45<\/td>\r\nM45X2<\/td>\r\n38X3.1<\/td>\r\n52.5<\/td>\r\n52.5<\/td>\r\n46<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    All dimensions are in millimetres and are transcribed from the published spec sheet for this series. The letter X in a thread callout is the pitch separator, and the O-ring numbers are the inside diameter and the cross-section in millimetres.<\/p>\r\n\r\n\r\n\r\n

    Two remarks on accuracy. The source table prints the smallest thread in this series as M12X1.28, which is an unusual pitch for this port size; the standard metric fine pitch for that port is normally M12X1.25, so confirm the pitch on your port drawing before ordering that code. The larger threads in the matrix should also be checked against the actual port, because not every metric size appears in the published ISO 6149 lists.<\/p>\r\n\r\n\r\n\r\n

    Thread Size and Dash Chart<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Size code<\/th>\r\nTHREAD E, F<\/th>\r\nO-ring<\/th>\r\nA (mm)<\/th>\r\nB (mm)<\/th>\r\nS1 (mm)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    1E9-12<\/td>\r\nM12X1.28<\/td>\r\n8X1.9<\/td>\r\n20.5<\/td>\r\n20.5<\/td>\r\n12<\/td>\r\n<\/tr>\r\n
    1E9-14<\/td>\r\nM14X1.5<\/td>\r\n10X1.9<\/td>\r\n22.5<\/td>\r\n22.5<\/td>\r\n14<\/td>\r\n<\/tr>\r\n
    1E9-16<\/td>\r\nM16X1.5<\/td>\r\n11X1.9<\/td>\r\n24<\/td>\r\n24<\/td>\r\n17<\/td>\r\n<\/tr>\r\n
    1E9-18<\/td>\r\nM18X1.5<\/td>\r\n13X1.9<\/td>\r\n26<\/td>\r\n26<\/td>\r\n19<\/td>\r\n<\/tr>\r\n
    1E9-22<\/td>\r\nM22X1.5<\/td>\r\n16X2.4<\/td>\r\n29<\/td>\r\n29<\/td>\r\n22<\/td>\r\n<\/tr>\r\n
    1E9-27<\/td>\r\nM27X1.5<\/td>\r\n20X2.4<\/td>\r\n32.5<\/td>\r\n32.5<\/td>\r\n27<\/td>\r\n<\/tr>\r\n
    1E9-30<\/td>\r\nM30X1.5<\/td>\r\n24X2.4<\/td>\r\n35.5<\/td>\r\n35.5<\/td>\r\n30<\/td>\r\n<\/tr>\r\n
    1E9-36<\/td>\r\nM36X2<\/td>\r\n30X3.1<\/td>\r\n42<\/td>\r\n42<\/td>\r\n36<\/td>\r\n<\/tr>\r\n
    1E9-39<\/td>\r\nM39X2<\/td>\r\n32X3.1<\/td>\r\n47.5<\/td>\r\n47.5<\/td>\r\n41<\/td>\r\n<\/tr>\r\n
    1E9-42<\/td>\r\nM42X2<\/td>\r\n35X3.1<\/td>\r\n49.5<\/td>\r\n49.5<\/td>\r\n41<\/td>\r\n<\/tr>\r\n
    1E9-45<\/td>\r\nM45X2<\/td>\r\n38X3.1<\/td>\r\n52.5<\/td>\r\n52.5<\/td>\r\n46<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Material and Heat Treatment<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Item<\/th>\r\nTypical supply<\/th>\r\nNote<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    Body material<\/td>\r\nCarbon steel, machined from bar or forged blank<\/td>\r\nStainless steel 304 \/ 316L on request<\/td>\r\n<\/tr>\r\n
    Heat treatment<\/td>\r\nApplied where the size and duty require it<\/td>\r\nTypical practice, confirmed on the drawing<\/td>\r\n<\/tr>\r\n
    Surface finish<\/td>\r\nZinc plating, trivalent passivation<\/td>\r\nZinc-nickel or other systems on request<\/td>\r\n<\/tr>\r\n
    O-ring material<\/td>\r\nNBR as standard practice<\/td>\r\nFKM and other elastomers on request<\/td>\r\n<\/tr>\r\n
    Inspection<\/td>\r\nDimensional check and visual thread inspection<\/td>\r\nCertified report on request<\/td>\r\n<\/tr>\r\n
    Documentation<\/td>\r\nBatch label with heat number; material test report on request<\/td>\r\nThird-party inspection such as BV or SGS can be arranged<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    These values describe standard practice for this series rather than a customer-specific qualification. If your project carries its own material, plating or heat-treatment requirement, send it and the part will be quoted against it.<\/p>\r\n\r\n\r\n\r\n

    Working Pressure and Operating Envelope<\/h3>\r\n\r\n\r\n\r\n

    This series is supplied without a single published pressure rating, because the working pressure is governed by the port standard together with the hose or fitting grade selected, and the finished assembly is only as strong as its weakest member. An elbow is not the limiting item in a normal hydraulic circuit; the hose construction, the tube wall and the port material usually govern.<\/p>\r\n\r\n\r\n\r\n

    Pressure data for the 90 degree elbow metric male O-ring adapter 1E9 can be issued against ISO or SAE requirements on request. State the intended working pressure and the applicable standard when ordering.<\/p>\r\n\r\n\r\n\r\n

    Temperature Range<\/h3>\r\n\r\n\r\n\r\n

    Continuous service temperature is typically -40 \u00b0C to +120 \u00b0C for a nitrile O-ring in a steel body, and it is set by the sealing element and by the hose or tube in the circuit. Higher temperature service calls for a fluorocarbon elastomer, available on request.<\/p>\r\n\r\n\r\n\r\n

    How to Read the Part Number Matrix<\/h2>\r\n\r\n\r\n\r\n

    The order code has two blocks: the series prefix and the thread size code.<\/p>\r\n\r\n\r\n\r\n

    The prefix 1E9 means that the part is a 90 degree elbow with a metric male O-ring stud end at both ends. The character 9 marks the elbow in this catalogue family, where 1E is the straight version of the same interface.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Order code<\/th>\r\nPrefix meaning<\/th>\r\nSize block<\/th>\r\nFull interface<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    1E9-14<\/td>\r\n1E9: 90 degree elbow, two metric male O-ring ends<\/td>\r\n14 = M14X1.5<\/td>\r\nM14X1.5 elbow, 10X1.9 O-ring at both ends<\/td>\r\n<\/tr>\r\n
    1E9-30<\/td>\r\n1E9: 90 degree elbow, two metric male O-ring ends<\/td>\r\n30 = M30X1.5<\/td>\r\nM30X1.5 elbow, 24X2.4 O-ring at both ends<\/td>\r\n<\/tr>\r\n
    1E9-45<\/td>\r\n1E9: 90 degree elbow, two metric male O-ring ends<\/td>\r\n45 = M45X2<\/td>\r\nM45X2 elbow, 38X3.1 O-ring at both ends<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Two warnings are worth repeating. The size block identifies the thread, not the hex or the leg length, both of which are read from the matrix. A metric thread size can also exist in the cone seat systems, so the size code alone is never enough to order safely.<\/p>\r\n\r\n\r\n\r\n

    Selection and Ordering<\/h2>\r\n\r\n\r\n\r\n

    Selection Checklist \/ Decision Table<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Question<\/th>\r\nWhat to check<\/th>\r\nExample<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    What is on port 1?<\/td>\r\nPort preparation, thread and pitch<\/td>\r\nISO 6149 metric O-ring port, M22X1.5<\/td>\r\n<\/tr>\r\n
    What is on port 2?<\/td>\r\nSame questions, independently verified<\/td>\r\nISO 6149 metric O-ring port, M22X1.5<\/td>\r\n<\/tr>\r\n
    Is there room to swing the elbow?<\/td>\r\nCompare A and B against the machine layout<\/td>\r\nA = B = 29 mm for 1E9-22<\/td>\r\n<\/tr>\r\n
    Is the wrench access adequate?<\/td>\r\nCompare S1 against surrounding parts<\/td>\r\nS1 = 22 mm for 1E9-22<\/td>\r\n<\/tr>\r\n
    Is either port a cone seat?<\/td>\r\nA cone seat means a different family<\/td>\r\nIf yes, do not use this part<\/td>\r\n<\/tr>\r\n
    What hose or tube follows?<\/td>\r\nWorking pressure, media, temperature<\/td>\r\nMineral oil, 20 MPa, 80 \u00b0C<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Cross Reference Service<\/h3>\r\n\r\n\r\n\r\n

    Send a photograph of the worn elbow, a rubbing of the thread, or the old order code from your own system, and the size of this 90 degree elbow metric male O-ring adapter 1E9 will be converted free of charge. We quote and supply under the HENGHUA and Globhose brands only; we do not copy or re-brand another manufacturer’s product, and we do not print another company’s part number on any component.<\/p>\r\n\r\n\r\n\r\n

    Packaging and Logistics<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Item<\/th>\r\nStandard practice<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
    Unit protection<\/td>\r\nThread protectors and anti-corrosion film on machined surfaces<\/td>\r\n<\/tr>\r\n
    Carton<\/td>\r\nInner bag plus export carton, size-coded labels<\/td>\r\n<\/tr>\r\n
    Batch label<\/td>\r\nSeries, size code, quantity, heat number, production date<\/td>\r\n<\/tr>\r\n
    Mixed loads<\/td>\r\nDifferent sizes can be combined in one consignment to reach a full container<\/td>\r\n<\/tr>\r\n
    Urgent orders<\/td>\r\nAir freight for samples and breakdown spares<\/td>\r\n<\/tr>\r\n
    Standard lead time<\/td>\r\nBatch delivery of standard sizes in around seven days, subject to confirmation<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n

    Installation and Fitment Guide<\/h2>\r\n\r\n\r\n\r\n

    Step-by-Step Assembly<\/h3>\r\n\r\n\r\n\r\n
      \r\n
    1. Confirm both ports against ISO 6149-1 and check that no cone seat or tapered thread is present.<\/li>\r\n
    2. Check the clearance for the swing of both legs and for the wrench on the hex S1.<\/li>\r\n
    3. Fit new O-rings to both shoulder grooves, free of cuts and dirt.<\/li>\r\n
    4. Lubricate the threads lightly with the system fluid if required, then engage both ends by hand.<\/li>\r\n
    5. Align the elbow to the required direction and tighten each end to the standard torque for its thread size.<\/li>\r\n
    6. Run a short low-pressure check and inspect both shoulders for weeping.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

      Torque and Sealing Notes<\/h3>\r\n\r\n\r\n\r\n

      Tightening torque is taken from the applicable standard data table for the thread size, not from a rule of thumb. Tighten one end, then hold the body with a wrench on S1 while tightening the other end, so that the first joint is not disturbed.<\/p>\r\n\r\n\r\n\r\n

      The O-rings do the sealing. Thread sealant, tape and liquid pipe dope are unnecessary on an O-ring face seal stud end and can introduce contamination into the circuit. Never use the elbow to align a misaligned tube or port under load.<\/p>\r\n\r\n\r\n\r\n

      Installation Warnings<\/h3>\r\n\r\n\r\n\r\n