quarter-turn

quarter-turn

Descriptive of a stair which, in its progress from top to bottom, turns 90°.
References in periodicals archive ?
com)-- EMKA's range of industrial quarter-turn latches and locks offer a quick, simple and affordable solution to a huge variety of closure situations with a practical modular design concept - now enhanced with a wide range of important accessories to ensure proper fitment and performance.
Quarter-Turn Valves: Head Loss, Torque, and Cavitation Analysis, 3rd Edition
It installs on a 55-gallon drum in less than a minute and switches from fill to discharge mode with a quarter-turn of a knob.
The standard operating pressure range is 10-105 barg (145-1,500 psig), enabling a quarter-turn operating torque of up to 600,000 Nm and linear thrust of 5 million N.
The best way to deal with bad valves is to replace them with modern quarter-turn ball valves.
McLaughlin offers two options in its Vermeer Hole Hammer piercing tool line--a positive-turn reverse design and air-on quarter-turn reverse.
a) the supply of non-explosive quarter-turn actuators;
The global industrial valves and actuators market is witnessing the adoption of quarter-turn valves.
They incorporate a quarter-turn design that is commonly used in blood pressure applications, particularly blood pressure cuffs.
P2-13 Series quarter-turn electric, non-spring return actuators feature a rugged, industrial-grade design for use with all ball and butterfly valves or dampers requiring higher torque outputs from 800 in.
P Series, PA-PD Series, D Series, and PL Series electric actuators are designed for rugged industrial use and are available in a variety of quarter-turn reversing, quarter-turn reversing spring-return, and linear drive models to provide on/off, jog, or proportional control for a wide range of ball valves, butterfly valves, gate valves, dampers, and other devices.
The snap-fit base eliminates the need for a separate quarter-turn adaptor, making installation of Philadelphia Scientific Injector systems faster and easier than other single-point systems.