WHY IT IS IMPORTANT TO USE THEM
During installation and subsequent operation, debris and scale flowing through the system can cause serious damage to pipeline systems. The use of Rastelli “Y” pattern strainer will assist in reducing any problems caused by foreign bodies in the pipe.
“Y” pattern strainer are sized to allow the valve to collect a reasonable amount of material before pressure reductions require the strainer to be cleaned.
APPLICATIONS AND USES
“Y” pattern strainers are typically used in applications where the amount of solids to be removed is small, and where frequent clean-out is not required. Rastelli “Y” pattern strainer are suitable for water systems, for low temperature hot water systems. In addition, bronze valves are suitable for chilled systems.
INSTALLATION AND MAINTENANCE
It is suggested to install the “Y” strainer following the arrow marked on the body and with the cap facing down, so that when it is opened, all the collected impurities on the straining component, will go out and they will not go back inside the pipe. Before installing the “Y” strainer, it is advisable to check if there is enough space to take out the straining components. After the cleaning of the strainer, check carefully the cap seal and if you have doubts, do not hesitate to replace it. For particular uses, it is suggested to install, upstream and downstream the “Y” strainer a couple of manometers in order to check the stopping condition of the strainer. When a new plant is put on work, after few hours of working, it is advisable to open all installed strainers to clean out the typical residues of new tubes.
For valve operating with hazardous liquids (toxic, corrosive…) , if there is a possibility of residue remaining in the valve, take due safety precaution and carry out required cleaning operation. Personnel in charge must be trained and equipped with appropriate protection devices. Prior to disposal, disassemble the valve and separate the component according to various materials. Please refer to product literature for more information. Forward sorted material to recycling (e.g. metallic materials) or dispose it, according to local and currently valid legislation taking into consideration the environment.
Performance data, including pressure – temperature ratings have been developed from published standards, supplier material specifications, design calculations and in-house testing. They cover typical applications and are provided as a general guideline.