Container valves

AMD 1 Transportable gas container valves. Part 1 Industrial valves for working pressures up to and including 300 bar (AMD 7641J dated 15 May 1993 Partially replaced BS 341. Part 1 1962 and BS 341 Paid 2 1963... 

Containing Valves, Fittings, or Piping, and not within a Division 1 or 2 Classified Location Drainage Ditches, Separators, Impoimding Basins Outdoor... 

So far, only the frictional pressure drop in straight lengths of pipe of circular cross-section has been discussed. The pressure drop in pipelines containing valves and fittings can be calculated from equation 2.13 but with fittings represented by the length of plain pipe that causes the same pressure drop. 

Addresses fuel gas piping systems in and between buildings. The scope includes piping between the outlet of the consumers meter and the outlet of the first pressure-containing valve upstream of the gas utilization device. 

FIGURE D.7 Integrated microfluidic devices, which contain valves that can be pinched closed by pressurized channels, are fabricated from rubber by softmicrolithography at low... 

Sampling procedure. For taking a sample from its shipping contai ner, attach to its valve die valve Vj of cared sampler shown in Fig Et21. With valves V j and V2dosed cool the sampler to 0° (32°F) with ice. Open die container valve and then valve V1 of the... 

Another occurrence is the leakage of product through the roof drains on external floating-roof tanks and out at the roof drain discharge nozzle. These spills are sometimes caused by equipment failures but also result from operator error or lack of training. Because it is easier to leave secondary-containment valves and roof drain valves open so that they do not need to be opened in periods of rainfall, the effectiveness of this equipment is reduced. This may be classified as operator error. A comprehensive tank management program addresses these kinds of problems. 

Industrial uses of aerosols include aerosol propellants, anti foam sprays, fire extinguishers and paints. Herzka Pickthal (Ref 5) describe aerosol propellants, containers, valves, filling methods, lab procedures, emulsified systems, etc Refs 1)Webster s New Collegiate Dic-... 

The apparatus routinely used in this laboratory for the manual synthesis of peptides consists of a flask attached to a glass manifold that can support up to four sintered funnels, thereby permitting the simultaneous synthesis of up to four peptides. The side arm of the flask is attached to a vacuum pump to allow for solvents to be aspirated from each funnel. The manifold also contains valves... 

Sulfur Compounds Carefully open the container valve to produce a moderate flow of gas. Do not direct the gas stream toward the face, but deflect a portion of the stream toward the nose. The gas is free from the characteristic odor of sulfur compounds. 

A steel container has a volume of 200 m3. It is filled with nitrogen at 22°C and atmospheric pressure. If the container valve is opened and the container heated to 200°C, calculate the fraction of the nitrogen which leaves the container. 

The ability to fill a device with many different fluids in different channels and chambers allows for the implementation of a simple and robust geometric method of metering solutions. The principle behind this scheme is to set up a geometry in which two microfluidic chambers may be primed with different solutions and connected via a fluidic interface that is controlled by a microfabricated valve (Fig. 11.4). With a central interface valve closed, the two chambers are first deadend filled with two different solutions using the POP technique. Once both chambers have been completely filled, containment valves are actuated, isolating the chambers from the rest of the chip. The interface valve is then opened, creating a... 

Each pair of chambers is connected to the protein sample and one of 48 crystallization solution reservoirs. The chip has 480 integrated valves that are actuated through three separately addressable control lines. As a precaution, 48 safety valves are included at the solution inlets to avoid the unwanted loss of protein sample in the unlikely event of an interface valve failure. The remaining two lines simultaneously control all interface and containment valves. By virtue of this parallel architecture and the robustness of the BIM scheme, solutions of varying viscosity, surface tension, pH and ionic strength may be simultaneously metered and mixed at three different mixing ratios using only two hydraulic control lines. 

Auxiliary container valve Chlorine tonne containers... 

The safety engineer in a plant wishes to determine whether the benzene concentration in a laboratory exceeds the PEL. One Monday at 9 a.m., 1 p.m., and 5 p.m., she collects samples of room air (33 C, 99 kPa) in evacuated 2-liter stainless steel containers. To collect a sample she opens the container valve, allows room air to enter until the container pressure equals atmospheric pressure, and then charges clean dry helium into the container until the pressure reaches 500 kPa. Next, she takes the containers to an analytical laboratory in which the temperature is 23 C, leaves them there for a day, and then feeds gas from each container to a gas chromatograph (GC) until the pressure in the container is reduced to 400 kPa. In the order in which they were collected, the samples that pass through the GC are found to contain 0.656 p.g (microgram), 0.788 p.g, and 0.910 ng of benzene, respectively. 

By the latter part of the nineteenth century, the Solvay process for the production of sodium bicarbonate had become very important commercially. Ammonium chloride formed as a by-product in this reaction, and chemists sought ways to convert it to chlorine on a commercially feasible scale. The reaction vessels contained valves made of nickel, which corroded severely during many of these reactions. Mond carried out a detailed study on this corrosion, and found that carbon monoxide was the active agent (180) ... 

Aerosols are primarily pressurized packaging of a drug product. Pharmaceutical aerosols depend upon the container, valve assembly, and propellant. The physical form in which the contents are emitted is dependent upon the product formulation and type of valve and actuator employed to produce the following ... 

It is necessary to ensure that the correct gas is put into the correct container. There should be no interconnections between pipelines carrying different gases. The manifolds should be equipped with fill connections that correspond only to the valve for that particular gas or mixture of gases so that the wrong containers cannot be attached to the manifold. (The use of manifold and container valve connections may be subject to national or international rules.)... 

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