Level switch suited for hazardous locations
This standard Model F70 external chamber-float level switch includes a compact, low mass design with stainless steel wetted parts, a flanged top chamber, tamperproof hermetically sealed SPDT switches, die cast aluminum or stainless steel housing, and high and low temperature capability.
The maker says its switch's low bounce and fast contact changeover help suit it for use with modern distributed control systems and programmable logic controllers.
F70s are particularly suited for hazardous locations such as oil field and petrochemical operations. Because units mount on the outside of the process vessel, they are easy to inspect under operating conditions and can be tested or replaced without taking the vessel off line.
With their standard ANSI flanges, NPT, or socket weld connections, F70 switches install easily. Their absolute level switching points are factory set for extended trouble-free service, the company says. Rated maximum process pressure is 580 psi.
Source: KSR Kuebler Level Control Products of America Inc., 8349 Arrowridge Blvd., Suite M, Charlotte, NC 28273.
Unit added to data acquisition, monitoring system
This new SV180 has been added to the SmartView family of data acquisition, monitoring, and management solutions.
It's designed with as many as 80 direct universal inputs including an additional 80 virtual (math) channels as well as a variety of input-output and network configurations.
It offers a 12.1 in. high resolution touch-screen display with streaming trends, bar graphs, digital values, and plant mimics. Adding the intuitive Windows style interface yields a one-touch access to point alarms, events, and user-defined screens along with simultaneous access to real-time and historical data. All of the critical process parameters are at the operator's fingertips. The SV180 recorder replaces the role of multiple small recorders by allowing the user to group points and assign the various groups to several display types such as vertical-horizontal trend, vertical-horizontal bar graph, digital values, alarm-event summary, as well as quadrant split views.
Data are scanned at less than 20 ms/point and are continuously saved to 32 megabytes of internal RAM as well as to 3.5 in. floppy disk, 100 megabyte zip disk, or up to 2 gigabytes ATA flash memory card. The unit can be equipped with dual storage media in applications requiring data redundancy. As with other products in the SmartView family, the SV180 can be easily integrated into existing DCS, PLC, or SDADA systems using MODBUS protocol on either of the standard RS232, RS485, or 10Base T ethernet communications ports.
In this configuration, the SV180 can fulfill either of several roles as a primary or secondary data acquisition and monitoring system or as a remote indicator/ annunciator panel.
Source: Thermo Electron Corp., 9303 W. Sam Houston Pkwy. S., Houston, TX 77099.
New instrumentation check valve
A new instrumentation check valve is optimized for reliable operation at extreme temperatures and high pressures.
It promises integrity via a metal seat, allowing safe operation over an extended temperature range of –148° to +482º C. and at pressures as high as 6,000 psi (–100° to +900º F., up to 413 bar).
Fabricated in 316 stainless steel, these LC Series lift check valves come in 1/8, 1/4, and 1/2 in. sizes. Users may also specify the valves for compatibility with existing systems or preferred installation practices by choosing from integrated single (CPI) or twin (A-LOK) ferrule compression tube fittings or female NPT pipe thread connections. The forged body is compact and spans only 2 in. in its smallest 1/8 in. implementation.
The new metal-seated check valve is suited for liquid service applications. The LC Series uses back-pressure and a gravity-assisted poppet to achieve a seal and prevent flow in the reverse direction to within 99.9% of forward flow.
The company says the environmental specification of the LC Series helps suit the valves as a safe option for handling temperature extremes found in petrochemical and chemical processing plants and within oil and gas transmission facilities. Typical uses include equipment where backflow can cause contamination, such as analytical instrumentation, and on equipment that can be damaged by backflow, such as pumping systems.
Source: Parker Hannifin, Instrumentation Products Div., Riverside Rd., Barnstaple, EX31 1NP, UK.
Hooks suspend cable, help improve oil field safety
Cablesafe, new S-shaped hooks, promises help in improving safety on decks, stairs, scaffolding, and other oil field structures.
The firm says its product helps improve safety by suspending such items as electrical cables, welding cables, firehoses, and airhoses. These simple hooks are produced from nonconductive and nonflammable reinforced polyester.
In cases of emergency situations, escape routes are kept free of obstacles, the company notes.
A recent development is a phosphoric hook, which will light up in dark spaces.
Hooks come in three sizes and on each one is specified its maximum allowed load.
Source: Westmark BV, Box 82, 3930 EB, Woudenberg, the Netherlands.