Alternatively, pressurants can be removed with the use of special venting lines and pyrotechnical valves.

4.2.1.13.10 Vacuum relief devices and spring loaded valves shall be provided with flame arresters.

Pressure relief requirements are as indicated in 6.6.2.8.3 to prevent crystallization of the product in the pressure relief valve.

Bundles containing UN 1045 Fluorine, compressed, may be constructed with isolation valves on assemblies (groups) of cylinders not exceeding 150 litres total water capacity instead of isolation valves on every cylinder.

No stop valve shall be installed between the shell and the pressure relief devices except when duplicate devices are provided for maintenance or other reasons and the stop valves serving the devices actually in use are locked open or the stop valves are interlocked so that the requirements of 6.6.4.7 are always fulfilled.

The pressure relief devices shall be of a type that will resist dynamic forces including liquid surge.

The pressure relief devices shall be of the type that will resist dynamic forces including surge.

Now that's a left ventricle pushing blood up through the aortic valve you can see two of the leaflets of the aortic valve working there up into the ascending aorta.

The top of the tank is provided with either a 1 mm opening which simulates the pressure relief valve (PRV) of the IBC or tank or a real PRV of a diameter which is scaled using the vent area to vessel volume ratio.

No stop valve shall be installed between the shell and the pressure relief devices except where duplicate devices are provided for maintenance or other reasons and the stop valves serving the devices actually in use are locked open or the stop valves are interlocked so that at least one of the duplicate devices is always in use.

Vacuum relief devices, when used, shall have a cross sectional flow area not less than 284 mm2.

No stop valve shall be installed between the shell and the pressure relief devices except when duplicate devices are provided for maintenance or other reasons and the stop valves serving the devices actually in use are locked open or the stop valves are interlocked so that at least one of the duplicate devices is always operable and capable of meeting the requirements of 6.6.3.8.

Threshold could not be extracted from header

(b) Each valve shall be of the packless type with non perforated diaphragm, except that, for corrosive materials, a valve may be of the packed type with an assembly made gas tight by means of a seal cap with gasket joint attached to the valve body or the pressure receptacle to prevent loss of material through or past the packing

Connections and accessories leading to or from such a valve shall have a capacity for a flow more than the rated flow of the excess flow valve.

The seacocks are the valves to drain out the boat.

The capacity and start to discharge pressure of the relief valves shall be based on the results of the tests specified in 4.2.1.13.1.

6.6.2.8.5 When the shell is fitted for pressure discharge, the inlet line shall be provided with a suitable pressure relief device set to operate at a pressure not higher than the MAWP of the shell, and a stop valve shall be fitted as close to the shell as reasonably practicable.

(a) Each plug or valve shall have a taper threaded connection directly to the pressure receptacle and be capable of withstanding the test pressure of the pressure receptacle without damage or leakage

An officer...

Sea...

Each pressure receptacle with a wall thickness at any point of less than 2.0 mm and each pressure receptacle that does not have fitted valve protection shall be transported in an outer packaging.

19. The Ariane 5 orbiter will also be rendered passive at the end of its mission through the opening of two pyrotechnic valves fitted on the pressurization circuit, connected to zero torque nozzles.

The dragoon, you mean?

The periodic inspection shall include an external examination, an internal examination or alternative method as approved by the competent authority, a pressure test or equivalent effective non destructive testing with the agreement of the competent authority including an inspection of all accessories (e.g. tightness of valves, emergency relief valves of fusible elements).

Cylinder head valve grinder

Valves and tubes

Throttle set.

Cut your throttle.

Open your throttle another crack.

Two pyrotechnic valves were designed and added to the pressurization circuit of the tanks, forcing the latter to open into the void at the end of the mission.

Pressure receptacle valves shall be designed and constructed in such a way that they are inherently able to withstand damage without release of the contents or shall be protected from damage which could cause inadvertent release of the contents of the pressure receptacle, by one of the methods as given in 4.1.6.1.8 (a) to (e).

So the valves at the bottom of those tubes there are like radio controlled airplane valves.

(d) The materials of construction for the pressure receptacle, valves, plugs, outlet caps, luting and gaskets shall be compatible with each other and with the lading.

Civil Horizontal Valve

Vehicle jack Cylinder head valve grinder

Cylinder head valve grinder

What are the seacocks?

Open fuel valves.

4.2.1.13.7 The pressure relief devices shall consist of spring loaded valves fitted to prevent significant build up within the portable tank of the decomposition products and vapours released at a temperature of 50 oC.

6.6.2.5.6 Each stop valve or other means of closure shall be designed and constructed to a rated pressure not less than the MAWP of the shell taking into account the temperatures expected during transport.

6.6.3.5.9 Each stop valve or other means of closure shall be designed and constructed to a rated pressure not less than the MAWP of the shell taking into account the temperatures expected during transport.

6.6.4.5.8 Each stop valve or other means of closure shall be designed and constructed to a rated pressure not less than the MAWP of the shell taking into account the temperature expected during transport.

6.6.4.5.9 When pressure building units are used, the liquid and vapour connections to that unit shall be provided with a valve as close to the jacket as reasonably practicable to prevent the loss of contents in case of damage to the pressure building unit.

China s Resurgent Warlords