-
Valves Enhance Machine and Worker Safety (.pdf)
ne the control system as including. not only input, sensing, and inter-lock devices but also output devices such as. pneumatic and hydraulic valves. The function of a fl uid control valve mimics that of an electrical-control relay and,. therefore, is subject to the same rules for classifying safety
-
Fluid Power Safety Overview
of a fluid control valve mimics that of an electrical-control relay and, therefore, is subject to the same rules for classifying safety integrity. Thus, properly specified machine safeguarding systems include provisions for pneumatic valves, including: Must be functionally redundant. Must
-
Pressure Valves
pressure to hold the valve closed at pressures higher than that provided for by the spring. Safety valves pop open to avoid or eliminate abnormally high pressure peaks. They are designed strictly for fast action rather than pressure modulation, and they may well be subject to such problems as noise
-
Where Does Your Safety System End? (.pdf)
A complete safety system should always include all of the. components (both electrical and mechanical) - not just the. electrical portion of the system. In the past, and too often in. the present, the unfortunate mistake of neglecting the control. valves in the design of machine guarding systems
-
Assured Automations Announces New VAX Valve - Cycle Life Extended By as Much as Ten Times Conventional Valves
seriously," explains Weller. The Assured Automation VAX valves enables us to maintain a competitive advantage, and while better controlling the flow of natural gas, improving safety, and minimizing any environmental impact.". About Wolf Dye and Bleach Works, Inc. Wolf Dye and Bleach Works
-
The What, How, Where and Why of Relief Valves
by the inlet pressure is equal to the force exerted by the spring. Liquid then begins to trickle through the valve. As inlet pressure continues to increase, the valve opens farther, allowing more flow. CAUTION: The RVT, RVD, RVDM, and RVDT series are NOT "POP SAFETY" valves and should not be used
-
Safety Pays
A major oilfield services company and its customers were losing time and money due to unexpected safety shut downs. These shut downs resulted from repeated failures of the rotary unions the company was using in their coil tubing applications. Each time a rotary union failed, it allowed pressure
-
Dewatering Pumps for Mine Safety
Working far beneath the surface of the Earth presents constant challenges for businesses part of the vital coal mining industry. The Mine Safety and Health Administration (MSHA) mandates that any puddle in a mine that is more than nine inches deep must be removed, or the mine must shut down. Many