316 Stainless Steel Casting Street Elbow 1 NPT Threaded

Casting Street Elbow 1" 316 Threaded NPT for Plumbing

• Material: Stainless Steel 316 / Casting Grade CF8M
• Standard: ASTM A351 (Material) / ISO 4144 (Dimensions, ref.)
• Fitting Type: 90° Street Elbow, Casting
• Connection: Male x Female Threaded NPT
• Pressure Rating: Class 150
• Application: Plumbing, HVAC, Tight-Space Connections
• Size: 1 inch (DN25)

Street elbows with internal and external threads are special pipe fittings designed to save installation space. One end is female and the other end is male. This unique structure allows direct connection to internally threaded pipe fittings (such as tees or pipe clamps), eliminating the need for connecting nipples. This reduces installation costs, minimizes potential leakage points, and enables more efficient pipeline layouts in compact spaces.

CF8M/316 stainless steel provides excellent corrosion resistance for pipeline systems. Compared to standard 304 material, 316 offers enhanced protection against chlorides and industrial chemical media due to its molybdenum content. This makes the fittings resistant to rust, corrosion, and perforation, significantly extending pipeline service life while reducing maintenance costs.

According to ASTM A351 standard, the official grade for casting 316 stainless steel is CF8M. While there are slight chemical composition differences, industry practice accepts "316" labeled materials as meeting CF8M performance requirements. Our product dimensions reference ISO 4144 standards while conforming to widely accepted industry specifications for optimal market applicability.

Class 150 cast threaded elbows are ideal solutions for low-pressure plumbing and piping systems requiring 90° angle connections in limited spaces. They are widely used in residential/commercial plumbing, HVAC systems, irrigation, and general industrial equipment to achieve compact, efficient piping connections.

How to prevent thread biting during installation of a 1-inch 316 internal and external threaded elbow?
A1: It is recommended to evenly apply high-quality PTFE anti seize agent or wrap high-density tape on the male thread. This can effectively lubricate the threads, ensure a tight seal, and facilitate later disassembly and maintenance.

Q2: What is the specific maximum working temperature that this Class 150 cast elbow can withstand?
A2: In conventional industrial fluid systems, this elbow can maintain structural and sealing stability in environments up to 150 degrees Celsius, fully meeting the stringent requirements of HVAC and commercial plumbing systems.

Q3: How does MLSCO ensure that the material of this CF8M cast elbow meets absolute standards?
A3: We implement strict quality control processes. All 316 pipe fittings must undergo PMI spectroscopy testing to accurately detect the content of key elements such as molybdenum. We will attach complete material certification documents when shipping to ensure that the product meets ASTM A351 standards.

Q4: We have an urgent engineering project. How quickly can we deliver a 1-inch internally and externally threaded elbow?
A4: 1 inch is a commonly used core specification. SMLSCO maintains a large inventory of spot goods throughout the year to specifically respond to various emergency procurement needs.

Q5: Internal and external threads are prone to damage during international long-distance shipping. What protective measures have you taken?
A5: We will provide dedicated protective covers for threaded fittings to prevent damage from collisions between internal and external threads. The outer layer is uniformly sealed with high-strength non fumigation plywood boxes.