IHS Standards Store – Engineering Standards Source - GlobalSpec
National Board Inspection Code (NBIC) IHS is your source for the NB 23, the must-have code for any pressure vessel inspector in the industry. First written in 1946, the code covers the rules and guidelines for in-service inspection, repair, and alteration of pressure- retaining items. The ANSI approved NBIC is required in many US and Canadian ...
Temperature Probes Information - GlobalSpec
Temperature probes are devices used to measure temperature using contact-style sensing methods. These methods infer temperature by using probes to measure changes in a temperature-sensitive characteristic (such as voltage difference or resistance). Temperature probes consist of sensor junctions in direct contact with a metal or plastic casing.
Motor Circuit Breaker Sizing Calculator | GlobalSpec
Pout=mechanical power output. PF=Power factor. V=Line voltage. E=The efficiency of the motor. Keep in mind that this circuit breaker sizing only considers motor overload, which happens when the operation of a motor (in excess of its normal, full-load rating) persists for a long enough time that it damages or overheats the motor.
DC Motors Selection Guide: Types, Features, Applications
DC Motors Information. DC motors are electric motors that are powered by direct current (DC), such as from a battery or DC power supply. Their commutation can be brushed or brushless. The speed of a brushed DC motor can be controlled by changing the voltage alone. By contrast, an AC motor is powered by alternating current (AC) which is defined ...
Globe Valves Selection Guide: Types, Features, Applications
Features. Globe valves are available with features for additional precision and safety. Positioners - Positioners allow operators to identify how open or closed the valve is for throttling. Limit switches - Limit switches limit how far the valve is able to open to close to protect the internal components of the valve.
Level Sensors Selection Guide: Types, Features, Applications
A sensor is able to detect a change and communicate that change with a user. Level sensors are generally designed for a specific application, rather than general application. There are two basic level-measurement types, point level and continuous level sensors. Below is a video which explains each measurement.
Water Quality Testing Instruments Selection Guide: Types, Features ...
Water quality testing instruments are used to test water for chemical and biological agents, and to measure variables such as clarity and rate of movement. These instruments provide a standard tool that can be used to collect information from various water sources. Water quality testing instruments can monitor water temperature, dissolved ...
Rotameters Selection Guide: Types, Features, Applications
There are several features that make variable area flow meters useful for many applications. Variable area flow meters offer mechanical flow measurement while using a single moving part. This ensures measurement reliability and easy installation. It also means that the rotameter can be used in areas with no power.
Submersible Pumps Selection Guide: Types, Features ... - GlobalSpec
Submersible pumps are designed to be fully immersible within a tank or other media storage receptacle. The motors of submersible pumps are normally sealed in oil-filled cavities that are protected from contact with the transfer media. Many common types of pumps can be designed by submersible pumps manufacturers to be submersible.
DC Power Supplies Information - GlobalSpec
Heat sink cooling. Water cooling. DC power supplies can also incorporate a number of other features: Battery backup. Hot swappable. Power factor correction. Temperature compensation. Weatherproof. For a more in-depth overview of power supply selection, visit the Power Supplies Selection Guide on Engineering360.