PRODUCT FEATURES
Threaded Elbow 45 — Product Features
Water treatment, plumbing systems, machinery piping, food & beverage, light chemical, heating & cooling circuits, pump and valve manifolds, process pipelines requiring gentle direction transition and lower flow resistance.
Product Feature
Buyer Notes
Product Feature
EN 10204 3.1 material test certificate available for bulk orders. OEM marking is acceptable. Samples can be arranged for dimension & thread verification before mass production. Please confirm thread type and size before order to prevent fitting mismatch on site.
OPERATING PRINCIPLE
How Threaded Elbow 45 Works
1. **45° Equal-Diameter Female-Threaded Design**: Features female threads at both ends, allowing for a gradual change in pipeline flow direction (45°) while effectively reducing fluid turbulence and pressure loss.
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2. **Precision-Cast Construction**
Built with robust wall thickness and a dense internal metallurgical structure—free from pores or sand holes—ensuring stable and reliable pressure-bearing performance.
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3. **AISI 304 Stainless Steel**
Offers excellent rust and corrosion resistance, making it suitable for use with fresh water, mildly corrosive media, and outdoor installations.
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4. **Precision-Machined Threads**
Available with NPT, BSPT, or BSPP thread specifications; thread tolerances comply with ISO 7-1, DIN 2999, or ANSI B1.20.1 standards, ensuring leak-free connections.
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5. **150LB Pressure Rating**
Complies with the ISO 4144 standard, suitable for a wide range of general industrial piping systems.
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6. **Pickled and Passivated Surface**
Features a uniform metallic finish that further enhances corrosion resistance; supports custom marking or engraving directly on the fitting body.
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7. **Comprehensive Size Range**
Available in sizes from 1/8″ to 4″ (DN6 to DN100), with support for OEM branding and customization.
ENGINEERING DATA
Technical Specifications
Technical data supplied for Threaded Elbow 45. Ratings and material combinations should be confirmed for the selected configuration.
| PARAMETER | SPECIFICATION |
|---|---|
| Material | AISI 304 (1.4301 / ASTM A182 F304) |
| Type | Threaded Elbow 45°, 45 Degree Equal Female Thread Elbow |
| Thread Standard | NPT (ANSI B1.20.1) / BSPT / BSPP (ISO7/1, DIN2999) |
| Pressure Class | 150LB |
| Standard | ISO 4144 |
| Surface | Pickled & passivated |
| Working Temperature | -20℃ ~ +200℃ |
MECHANICAL DIMENSIONS
Dimensions & drawings.
Compare connection size with the corresponding overall length, bore and handle clearance dimensions from the supplied drawing.
Dimension chart
| SIZE | φ1 | φ2 | A | B |
|---|---|---|---|---|
| 1/4 | 18 | 12 | 17 | 5 |
| 3/8 | 19.5 | 20 | 21 | 6 |
| 1/2 | 21 | 23 | 23 | 7 |
| 3/4 | 26.5 | 29 | 29 | 8 |
| 1 | 29 | 36 | 30 | 8 |
| 1-1/4 | 36 | 46 | 37 | 10 |
| 1-1/2 | 40.5 | 52 | 43 | 11 |
| 2 | 44 | 63 | 49 | 11 |
| 2-1/2 | 55 | 80 | 58 | 12 |
| 3 | 62.5 | 94 | 67 | 15 |
| 4 | 124 | 108 | 76 | 19 |
Refer to the supplied dimension chart.
APPLICATIONS
Applications
Applicable media: the supplied document lists the following fluids. Actual compatibility depends on selected materials, concentration, temperature, pressure and the specific service conditions.
Application – Water Circulation
Cooling water, circulating water, drinking water and neutral purified water.
Application – Steam Piping
Clean, low-temperature saturated steam, subject to the product’s confirmed temperature and pressure limits.
Application – Compressed Air
Compressed air and nitrogen; verify compatibility for each system.
PURCHASING SUPPORT
Frequently Asked Questions
Find answers to common questions about sizing, materials, threaded connections and operating conditions.
1、What is 45° Threaded Elbow?
It is a 45-degree threaded elbow fitting with **female internal threads at both ends**. It changes fluid flow direction gently at 45°, with lower flow resistance compared with 90° elbow.
Important distinction:
✅ 45° Threaded Elbow: F×F, 45° gentle turn
✅ 90° Street Elbow: M×F, right-angle turn
✅ 45° street elbow (M×F) is available separately on request.
2、What thread standards are available?
We support NPT (ASME B1.20.1), BSPT (Rc, EN10226), BSPP (G, ISO228-1).
Threads are NOT interchangeable. Please confirm thread standard and size before placing order.
3、What stainless steel grades can you supply?
Standard grades:
– 304 / CF8 for water, air and general low-corrosion service
– 316 / 316L / CF8M for coastal, brine, chemical and chloride-containing media
4、What standards and pressure rating?
Cast version follows ISO4144 / MSS SP-114, Class 150LB (PN16).
Forged bar machined version complies with ASME B16.11, available in 3000LB / 6000LB.
Pressure rating depends on material, wall thickness and production process.
5、Manufacturing process: casting or bar stock machined?
Standard stock items: lost wax investment casting.
High-pressure, high-precision requirement: solid bar CNC machined, higher cost.
7、Can you provide MTC material certificate?
Yes, EN10204 3.1 MTC with heat number is available. EN10204 3.2 third-party certificate can be arranged at buyer’s extra cost.
8、Surface finish options?
Standard: pickled matte finish.
9、Can you do laser marking?
Yes. We can mark size, grade, heat number, customer logo or brand on the flats.
10、Packaging for sea shipment?
Male threads are protected by plastic thread caps. Packed into export cartons, then loaded on fumigated wooden pallets with waterproof stretch film to avoid scratch and thread damage.
11、What is the lead time?
Typically, shipments are dispatched within 7–15 days of receiving the deposit, depending on the order quantity.
12、How is quality controlled?
Raw material inspection → CNC machining → Thread inspection → Hydrostatic testing → Visual inspection → Final dimensional verification before packaging.
13、Which Incoterms are available for overseas buyers?
We offer FOB (Free On Board) terms, with the shipment originating from a Chinese port. We will provide a commercial invoice, packing list, and bill of lading for import customs clearance.
14、Which Incoterms are available for buyers?
We offer FOB (Free On Board) or CIF (Cost, Insurance, and Freight) terms, with shipments originating from a Chinese port. We will provide a commercial invoice, packing list, and bill of lading for customs clearance.
15、What should be done if the threads are found to be defective or do not meet requirements upon arrival?
Please provide photos, videos, and inspection records. We will assess the root cause; depending on the contractual terms, solutions may include product replacement, a partial refund, or a reshipment.”
Threaded Elbow 45
304 Stainless Steel Threaded Elbow 45 Degree, 150LB Equal Female Thread Elbow, BSP/NPT Thread Available SS304 cast 45° elbow with female threads on both ends. Changes flow direction with less pressure drop than 90° elbows. Corrosion resistant for industrial threaded piping. MTC certificate available.
Type: Threaded Elbow 45
Material: 304/316L stainless steel
Nominal diameter: 1/4”–4” (D8–DN100)
Rated pressure: 150LB
Connection type: Threaded connection (BSPT / BSPP / NPT)
