MSS SP-97 astm a350 LF1 LF2 LF3 forging weldolet sockolet threadolet

MSS SP-97 astm a350 LF1 LF2 LF3 forging weldolet sockolet threadolet

1. Brief introduction for all types of olets

Weldolet is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the weldolet is considered a butt-weld fitting. Weldolet's are designed to minimize stress concentrations and provide integral reinforcement.

Sockolet utilizes the basic Weldolet® however the branch affixes by way of a socket inside the olet. The bore matches the outlet bore, and the existence of a counter bore roughly the size of the OD of the outlet provides a socket where the pipe can sit, facilitating installation and welding. The Sockolet® is considered a socket fitting, and manufactured in 3000#, 6000# and 9000# classes.

Thredolet utilizes the basic Weldolet® however the branch affixes by way of a thread just inside the top of the olet. The bore matches the outlet bore, and the existence of this threading facilitates installation, as no welding is necessary. The Thredolet® is considered a threaded fitting, and manufactured in 3000# and 6000# classes.

Latrolet, used for 45° lateral connections, is available butt-weld to meet specific reinforcement requirements, and 3000# or 6000# classes for Socket Weld and threaded applications.

Elbolet is used on 90° Long Radius Elbows (can be manufactured for Short Radius Elbows) for thermowell and instrumentation connections. Available butt-weld to meet specific reinforcement requirements, and 3000# and 6000# classes for Socket Weld and threaded applications.

Nipolet is a one piece fitting for valve take-offs, drains and vents. Manufactured for Extra Strong and Double Extra Strong applications in 3½in to 6½in lengths. Available with male-socket weld or male threaded outlets.

Sweepolet is a contoured, integrally reinforced, butt-weld branch connection with a low stress intensification factor for low stresses and long fatigue life. The attachment weld is easily examined by radiography, ultrasound and other standard non-destructive techniques. Manufactured to meet your specific reinforcement requirements.

Insert Weldolet is another contoured butt-weld branch connection used in less critical applications. Like the Sweepolet®, the attachment welds are easily examined by radiography, ultrasound and other standard non-destructive techniques. Manufactured to meet your specific reinforcement requirements.

Brazolet is designed for use with KLM and IPS brass or copper tubing. Available with socket or threaded connections.

Coupolet fittings are designed for use in fire protection sprinkler systems and other low pressure piping applications. manufactured with NPT female threads for 300# service and are UL Listed and F.M. approved.

2. Material Introduction