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Masoneilan 74000 Series Heavy Oil Process Valve
The base level 74000 series valve is characterized by a single stage trim, packaged in an angle style valve body, and having relatively simple flow geometry, for both the valve body and trim. This simplicity of flow path has proven successful in targeted heavy oil applications where high-velocity erosive jets are destroying more complex valve trims. This product has been uniquely successful in tough refining applications where entrained solids are the primary concern, and where other conventional severe service trims have failed catastrophically. The 74000 has industry-wide endorsements for success under tough of conditions, and is frequently specified by name with experienced users. When seeking products that are differentiated in the market, the 74000 stands out as unique in both design and performance.
Features
Refining solutions
With over 35 years of installation history, the Masoneilan 74000 series valves serve a unique role in advanced oil refining operations. One leading-edge refining process is known as Residual Hydrocracking. Positioned downstream of the vacuum unit, this process converts “bottom-of-the-barrel” residuals through a reactor to produce high value mid-distillates such as diesel. This fluid is laden with point-of-origin contaminants and particulate matter, and when combined with abrasive catalysts can destroy conventional control valves in a matter of days, or even worse. This is where the 74000 shines.
The 74000 series is the next tier in severe service that takes over in extremely erosive applications where traditional high-pressure reduction, severe service refining products like the Masoneilan LincolnLog and 77003 series become limited due to the erosive flow characteristic.
Unique Severe Service Design
Residual Hydrocracking introduces process attributes that require valve features that can hold up under a combined load of pressure and temperature with entrained solids yielding severe erosion. Some of these valve applications are so erosive that conventional trim staging is not effective, and is in-fact self-limiting.
Specifications
Sizes
2” x 3” through 12” x 14” (50 x 80 mm through 300 x 350 mm)
Ratings & Connections
flanged or hub: ANSI 150 - 2500
Body Materials
347 stainless steel; other alloys on request
Actuators
model 87/88 multi-spring-opposed diaphragm; model 51/52/53 piston cylinder
Trim
Body-retained seat ring with sacrificial venturi for body protection; fluted or bull-nosed plug with continuous heavy shaft guiding; trim components available in high alloy base with erosion resistant coating or ceramic; purge connection for flushing upper body cavity
Inherent Characteristics
linear
Associated Products
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Application area
能源
化工