The Spirax Sarco MSC Manifolds are used for Steam Distribution and Condensate Collection. This MSC are forged steel manifolds that concentrate on steam distribution and condensate from up to 12 different sources. There are 2 different styles of manifolds, the Condensate Collection and for Steam distribution. Both have important piston valves that have a wide range of connections, making them perfect for any tracing applications.
These manifolds are made of a compact design that makes access for trap maintenance and monitoring easy. These manifolds are easy to install too. There are 4 different connections, the 1-1/2″ has a NPT threaded connection, the ½” Socket Weld connection, the ¾” has a NPT connection and another ¾” has a Socket Weld Connection.
For perfect operation of these manifolds, the piston valve should d either be fully open or fully closed. Some important technical information should be kept handy in case of emergencies. The Body Design Rating is ANSI Class 300. The PMA is 740 PSIG @ 100 degrees Fahrenheit, the TMA should be 797 degrees Fahrenheit @ 406 PSIG. The very minimum temperature that is allowed with these manifolds is negative 20 degrees Fahrenheit. The PMO for Saturated Steam is 600 PSIG @ 500 degrees Fahrenheit.
The Hydrotest pressure is 1100 psig; the number of connections are 4,8 or 12. The connection sizes are ½” or ¾”. The connection types available are NPT; SW to ANSI B16.11 and the Piston Valve CV is 2.1 per valve in both sizes for the Condensate Collection or the Steam Distribution.
The MSC manifold parts list is the Body, Lower Ring, Upper Ring, Lantern Bush, Piston, Spindle, hand wheel, Bonnet, Studs, Nuts, Washers and Name Plate. You can see all of the parts and the spot where they go if you look into the manual and spec sheet on the Spirax Sarco website.
If you need to order a manifold, you would order along the lines of something like this, ” I need 1 of the Spirax Sarco MSC08 Steam Distribution and Condensate Collection manifold in A105N forged carbon steel body with the important piston valve with a 8 x ½” or ¾” NPT or Socket Weld Connection. If you are just need parts, the only parts that are available are the sealing ring set, the valve internals set and the extractor tool. If you need anything else, you will have to purchase a new manifold.
For installation of the Steam Distribution Duty, the installation recommended is the steam inlet connection at the top of the manifold. The trap set will be fitted at the bottom of the manifold. The discharge from the trap should be returned. The recommended installation on the Condensate Collection Duty is with the condensate outlet at the bottom. The bottom of the manifold should be set with a stop valve for just the purpose of the blow down. A diffuser is recommended. Always read the manuals and spec sheets of any traps or parts that are used for the steam heating units. By understanding how they work and why they work will make your job much easier.
