However, orders in Italy's internal and foreign markets still show different trends. In the Italian market, the index increased by 34% year-on-year. In foreign markets, the index fell by 1%.
Sandro, President of the Italian Textile Machinery Manufacturers Association. Salman Ilayji said: “The results of the first quarter surprised us. In the Italian market, orders continued to grow for the second quarter. This shows that there are still companies investing in new continuations and new systems. This is for us throughout Italy. For the textile and apparel production chain, it is a boost of confidence."
Despite a record increase in the domestic market, exports are still the main driver of the textile machinery sector. Therefore, the total order index in foreign markets still shows a slow decline, but it is very slight.
Peristaltic pump
There are a few plaster sprayers that have a peristaltic pump (a tube squeezed by rollers) which also requires compressed air to produce a spray. These types of plaster sprayer can also spray textured coatings with particle sizes up to about 3mm diameter, providing that they are not solvent based.
Piston pump
Newer types of plaster sprayer have a piston pump, which has sufficient pressure to spray smooth (untextured) plaster without compressed air. Full airless pumps are sometimes used to spray smooth plaster, although they are not ideal as the flow rate is too low for volume projects; however, they can be used to spray solvent-based plasters.
Air operated piston type supply pumps can put out as much as 27 gpm. Like the Graco Bulldog 10:1 at about 9 gpm and the Lincoln Pile driver 5:1 at about 27 gpm. These flow-rates are calculated at a maximum of 120 cfm air supply. Material supply hoses are medium pressure at about 600 psi. These pumps are material supply pumps only and additional air is required at the Spray Gun to propel the material to the surface. These guns are usually an internal mixture type guns where the material and air exits the gun together.
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