MSS SP 97 OLET BRANCH CONNECTIONS

MSS SP-97 is a standard developed by the Manufacturer's Standardization Society (MSS) that covers specifications for branch connections, specifically focusing on fittings such as olets. Olets are used to create branch connections from a main pipe, and they include types like weldolets, sockolets, thread-olets, and others.MSS SP-97: Specifications for Olets**1. Types of Olets Covered:MSS SP-97 specifies various types of branch connection fittings, each suited for different applications. Common types include:• Weldolet: Designed for welding onto the main pipe, used for high-pressure and high-temperature applications.• Sockolet: A type of branch connection with a socket designed to fit over the pipe and be welded.• Thread-olet: Designed with threaded connections, used where welding is not possible or practical.• Elbolet: Provides a branch connection at an angle, suitable for applications requiring angled connections.• Flexolet: Allows for branch connections at an angle, accommodating pipe misalignment.**2. Dimensions:MSS SP-97 specifies dimensions for olets, which typically include:• Nominal Pipe Size (NPS): Ranges from NPS 1/2 to NPS 24, or larger depending on the application.• Outlet Diameter: The diameter of the branch connection.• Body Dimensions: Includes the overall dimensions of the fitting, such as length, width, and height.**3. Pressure Ratings:Olets in MSS SP-97 are classified by pressure ratings, which affect their dimensions and design:• Class 3000• Class 6000• Class 9000These ratings define the maximum pressure that the fitting can handle, with higher classes suitable for higher pressures.**4. Material Specifications:MSS SP-97 specifies materials for olets to ensure they meet the required strength and corrosion resistance:• Carbon Steel: ASTM A105, ASTM A350 LF2• Alloy Steel: ASTM A182 F1, F5, F9, F11, F22, F91• Stainless Steel: ASTM A182 F304, F304L, F316, F316L**5. Design Considerations:• Weld Neck Design: Olets like weldolets have a reinforced neck to provide a strong weld connection.• Socket Design: Sockolets are designed with a socket that fits over the main pipe, allowing for welding.• Threaded Design: Thread-olets have threaded connections for use where welding is not feasible.SPECFICATIONS:• Manufacturing Range: DN 15 (1/2”) to DN 1500 (60”)• Rating/Class: 3000#/6000#/9000# and SCH 5/5S/10/10S/20/40/STD/60/80/XS/100/120/140/160/XXS etc.• Dimension Standard: ANSI/ASME B16.11/B16.5/MSS SP97, etc.• Type of Olets (Outlets): Weldolet, Sockolet, Latrolet, Sweepolet, Elbolet, Latroflange, Flangeolet, Nipoflange, Nipolet, Threadolet, etc.• Material Type: CARBON/ALLOY STEEL: ASTM/ASME A105/105N, ASTM / ASME A182, ASTM / ASME A335 GR F1, F5, F9, F11, F12, F22, F23, F91LTCS: ASTM/ASME A350 LF2, ASME/ASTM A694 F42, F46, F52, F60, F65, F70STAINLESS STEEL: ASTM A182 F304 (1.4301), F304L (1.4306/1.4307), F316 (1.4401), F316L (1.4404), F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L,  UNS S 31254 (1.4547) DUPLEX STEEL: Duplex (S32205 / S31803) X2CrNiMoN22-5-3 (1.4462), S32750 (EN/DIN 1.4410, X2CrNiMoN25-7-4), S32760 (1.4501, X2CrNiMoCuWN 25-7-4)HIGH NICKEL ALLOYS: Inconel 600, Inconel 625, Inconel 718, Inconel 800, Inconel 825, Monel 400, Monel K-500, Hastelloy C-276, Hastelloy B-2, Hastelloy C-22, Titanium Gr 2, Titanium Gr 5COPPER NICKEL ALLOYS: CUNI 90/10 (C70600), CUNI 70/30 (C71500)