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.

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.

6.6.3.5.3 For filling and discharge openings the first shut off device shall be an internal stop valve and the second shall be a stop valve placed in an accessible position on each discharge and filling pipe.

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.

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

(i) the control devices for the operation of the valve are designed so as to prevent any unintended opening through impact or other inadvertent act

6.6.3.5.2 All openings with a diameter of more than 1.5 mm in shells of portable tanks, except openings for pressure relief devices, inspection openings and closed bleed holes, shall be fitted with at least three mutually independent shut off devices in series, the first being an internal stop valve, excess flow valve or equivalent device, the second being an external stop valve and the third being a blank flange or equivalent device.

(v) the valve shall continue to be effective in the event of damage to the external device for controlling the operation of the valve

Military equipment in the form of night vision devices was also part of a shipment of arms to a warlord located in Mogadishu.

6.6.2.5.2 All openings in the shell, intended for filling or discharging the portable tank shall be fitted with a manually operated stop valve located as close to the shell as reasonably practicable.

Other openings, except for openings leading to venting or pressure relief devices, shall be equipped with either a stop valve or another suitable means of closure located as close to the shell as reasonably practicable.

Remote closure devices and self closing stop valves shall be operated to demonstrate proper operation

6.6.4.5.2 Each filling and discharge opening in portable tanks used for the transport of flammable refrigerated liquefied gases shall be fitted with at least three mutually independent shut off devices in series, the first being a stop valve situated as close as reasonably practicable to the jacket, the second being a stop valve and the third being a blank flange or equivalent device.

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.

(e) all emergency devices and valves are free from corrosion, distortion and any damage or defect that could prevent their normal operation.

6.6.3.5.2.1 When a portable tank is fitted with an excess flow valve the excess flow valve shall be so fitted that its seating is inside the shell or inside a welded flange or, when fitted externally, its mountings shall be designed so that in the event of impact its effectiveness shall be maintained.

ASCs are currently used for wear resistant parts (seals and valves), cutting tools, bearings and thermal barrier coatings.

6.6.4.5.3 Each filling and discharge opening in portable tanks used for the transport of non flammable refrigerated liquefied gases shall be fitted with at least two mutually independent shut off devices in series, the first being a stop valve situated as close as reasonably practicable to the jacket, the second a blank flange or equivalent device.

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.

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.

(a) an external stop valve fitted as close to the shell as reasonably practicable and

(b) an external stop valve fitted as close to the shell as reasonably practicable and

Self neutralization mechanism means an incorporated automatically functioning mechanism which renders inoperable the munition into which it is incorporated.

Incorporation of fail safe, sterilization, self destruct features, et cetera, should be considered (reference STANAG 4187).

Shut off valves shall be closed after filling and remain closed during transport.

The external discharge fittings (pipe sockets, shut off devices), the stop valve and its seating shall be protected against the danger of being wrenched off by external forces (for example using shear sections).

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.

For other stop valves the position (open and closed) and direction of closure shall be clearly indicated.

For other stop valves the position (open or closed) and direction of closure shall be clearly indicated.

In the case of other stop valves the position (open and closed) and direction of closure shall be clearly indicated.

Self destruction mechanism means an incorporated or externally attached automatically functioning mechanism which secures the destruction of the munition into which it is incorporated or to which it is attached.

6.6.2.15 Siting of pressure relief devices

6.6.3.11 Siting of pressure relief devices

6.6.4.10 Siting of pressure relief devices

The external discharge fittings (pipe sockets, shut off devices), the internal stop valve and its seating shall be protected against the danger of being wrenched off by external forces (for example using shear sections).

4.2.1.13.6 Portable tanks shall be fitted with pressure relief devices and emergency relief devices.

Where appropriate the transport unit shall be fitted with devices to facilitate securing and handling of the dangerous goods.

Mobile sets

The seacocks are the valves to drain out the boat.

The three underground nuclear tests carried out at 1545 hours on 11 May were with three different devices a fission device, a low yield sub kiloton device and a thermonuclear device.

DEBIE (Debris In Orbit Evaluator) is one such sensor.

Unless a portable tank in dedicated service is fitted with an approved relief device constructed of materials compatible with the load, such device shall comprise a frangible disc preceding a spring loaded device.

6.6.3.5.4 For filling and discharge bottom openings of portable tanks intended for the transport of flammable and or toxic non refrigerated liquefied gases the internal stop valve shall be a quick closing safety device which closes automatically in the event of unintended movement of the portable tank during filling or discharge or fire engulfment. Except for portable tanks having a capacity of not more than 1 000 litres, it shall be possible to operate this device by remote control.

(b) Launcher

6.6.2.6 Bottom openings