A flanged 90° side outlet elbow is a combination fitting: it turns the main run through a right angle and, at the same time, provides a third branch outlet from the bend — functionally a 90° elbow and a tee merged into a single casting. All three openings are flanged, drilled to the connection class of the pipeline. The main value is in the joint count: building this corner with separate fittings would need an elbow, a tee, a nipple or spacer, and extra gasketed flange pairs; the side outlet elbow replaces all of that with one casting and two flange joints instead of four or more.
The fittings are sand-cast in ductile iron to ASTM A536-84(2019) with flanges machined to ASME B16.1 Class 125. They are specified in fire pump rooms and sprinkler system headers, water treatment plant manifolds, pump station suction/discharge arrangements, and anywhere a distribution corner also needs a branch take-off. Typical main sizes run 3" to 12" with branch sizes equal to or smaller than the main, per project drawing.
| Parameter | Typical Value |
|---|---|
| Material & Grade | ASTM A536-84(2019) Gr. 65-45-12 / 80-55-06; EN-GJS-400-15 / EN-GJS-450-10 (EN 1563) |
| Standard | Flanges per ASME B16.1 Class 125 or EN 1092-2 PN10/16 |
| Nominal Sizes | Main 3" – 12"; branch ≤ main size, per drawing |
| Pressure Rating | 250–300 PSI WOG (typical for Class 125 flanged ductile iron) |
| End Connection | Flanged × flanged × flanged (three outlets) |
| Wall Thickness | To flange class minimums; cored three-way waterway |
| Weight Range | Approx. 15 – 90 kg per piece |
| Casting Process | Resin sand casting with cored waterway; flange faces fully machined |
| Dimensional Tolerance | ISO 8062 CT10–CT12 (as-cast); flanges machined to standard |
| Surface Finish | Black bituminous paint; hot-dip galvanized; fusion-bonded epoxy optional |
Side outlet elbows are project castings: flange drilling, branch angle (90° side outlet standard, 45° possible), leg lengths, and branch size reduction are all configurable from your drawing. The sampling path is drawing and DFM review → pattern and core-box build → first article → full dimensional report with flange drilling check → customer approval → production. First articles are typically ready in 4–6 weeks due to the core work involved. For legacy water-works networks we can reverse-engineer from a used fitting.
Chemistry per melt is verified by optical emission spectrometry against A536 limits, with mechanical test bars cast alongside the fittings. Because three flanges meet at one body, inspection concentrates on bolt-hole circle accuracy and face parallelism on each flange, wall thickness at the three-way junction, and waterway smoothness at the cored intersections. Hydrostatic testing to the project pressure is available. After coating, flanges are fitted with protective covers and the fittings are packed on wooden pallets or in plywood cases, bolted to prevent movement. Production runs under a quality management system conforming to ISO 9001:2015 requirements.
Q1: How does a side outlet elbow replace an elbow plus a tee?
The casting has three openings: run inlet, run outlet at 90°, and a branch off the bend. One gasketed joint is saved at each eliminated connection, and the single-body waterway has fewer internal steps that cause turbulence and sediment traps.
Q2: Can the branch be smaller than the main run?
Yes — reduced branches are common, for example a 6"×6"×4" arrangement. Because the branch is formed by the core, custom reductions are a pattern change rather than a machining compromise; send the three-way size schedule for confirmation.
Q3: What coating for a fire pump room installation?
Standard red or black epoxy paint suits indoor fire pump rooms; bury-grade fusion-bonded epoxy is used for underground mains. Hot-dip galvanizing is offered for outdoor atmospheric exposure. All coatings are applied after final dimensional approval.
Side outlet elbows are quoted from three-way size schedules and flange standards. WhatsApp usWhatsApp us at +86 185 6156 7088 the main size, branch size, drilling class, coating, and quantity; our export team returns a quotation with tooling plan and lead time, typically within one working day. For fire protection and water-works contractors, we can quote the complete flanged fitting package — tees, reducers, and elbows — in one consolidated shipment.
Need a formal quotation? Send your Ductile Iron Flanged 90° Side Outlet Elbow drawing, quantity and target price through our RFQ form — it goes straight to the foundry inbox, and we reply with a priced offer, material certificate draft and production lead time within one business day.
Professional technical research and development team to provide customers with the best solution.
Jimo District, Qingdao City, Shandong Province, China
© 2024 Qingdao Zhaoyuqi Machinery Co., Ltd. Powered by HiCheng
Sitemap
|
Privacy Policy
