New mixer blends ethanol, additives into gasoline
This patented, compact all stainless steel static injection mixer is designed to blend ethanol and other additives into gasoline and other fuels.
The mixer is a heavy-wall 316 stainless steel fixed plate that features an orifice pattern that mixes by a combination of alternate vortex shedding and intense shear zone turbulence to achieve >98% dispersion within 10 diameters downstream. Designed to fit inside the mating flange bolt circle of any piping system, it is smaller than conventional multielement static mixers, the company says.
Available in sizes from ½ in. up to 30 in. in diameter, the mixer comes standard with Flexitallic stainless steel high-pressure gaskets. Providing predictable mixing and maintenance free operation, this mixer has no moving parts and can be modified for injecting several additives. It can also be manufactured from titanium, Hastelloy, and other materials.
Source: Westfall Mfg. Co., 16 Peckham Drive, Bristol, RI 02809-0007.
Expansion joints for petrochemical plant
The 44 in. expansion joint shown on the right is one of a number of them that was designed and fabricated for a petrochemical plant in Malaysia. The joint measures 44 in. ID by 40 in. face to face and is made of stainless steel with insulation pillows. The design pressure is 3 psig, and the design temperature is 845° F.
Joints are designed with a lateral movement of ½ in. and an angular rotation of 1.5°. Stainless steel covers were included to protect the fabric expansion element from possible outside damage.
Source: U.S. Bellows Inc. Div., Piping Technology & Products Inc., 3701 Homes Rd., Houston, TX 77051.
