BS ISO 15995:2006 pdf download.Gas cylinders—Specifications and testing of LPG cylinder valves- Manually operated.
3.16
cylinder opening
part of the cylinder to which the valve stem connects
3.17
test pressure
pressure at which the valve or component is tested in bar gauge
3.18
sediment tube
device designed to reduce the risk of foreign matter, which can be in the cylinder, entering the valve
3.19 sealIng cap
device fitted to. or integral with, the outlet of the cylinder valve to provide secondary closure
3.20
valve operating mechanism
mechanism which closes and opens the valve orifice, e.g. threaded valve spindle which, when rotated, raises and lowers a seal
3.21
sealing mechanism
mechanism to obtain internal leak tightness
3.22
operating torque
torque dunng opening or dosing the valve, after the first hail rotation of the hand wheel in opening the valve and before the last halt rotation of the hand wheel in closing the valve
3.23
opening torque
initial torque required to open the valve ftom the dosed position
3.24
closing torque
torque required to close the valve and obtain internal tightness
3.25
protection cap
device that may be screwed to a fitting permanently attached to the cylinder to protect a cylinder valve
3.26
shroudguard
device mat may be welded to the cylinder to protect a cylinder valve
3.27
gross mass
mass of the heaviest cylinder on which the valve is intended to be fitted, including any permanently attached accessories and the maximum mass of the LPG content
3.28
pressure relief valve
valve which automatically, without the assistance of any energy other than that of the fluid concerned. discharges a quantity of fluid so as to prevent a predetermined safe pressure being exceeded, and whoh is designed to re-close and prevent the further flow of fluid after normal pressure conditions of service have been restored
NOTE The Ioadmg due to the fluid pressure underneath the valve- sealing element Is opposed by a spring.
cylinder opening
part of the cylinder to which the valve stem connects
3.17
test pressure
pressure at which the valve or component is tested in bar gauge
3.18
sediment tube
device designed to reduce the risk of foreign matter, which can be in the cylinder, entering the valve
3.19 sealIng cap
device fitted to. or integral with, the outlet of the cylinder valve to provide secondary closure
3.20
valve operating mechanism
mechanism which closes and opens the valve orifice, e.g. threaded valve spindle which, when rotated, raises and lowers a seal
3.21
sealing mechanism
mechanism to obtain internal leak tightness
3.22
operating torque
torque dunng opening or dosing the valve, after the first hail rotation of the hand wheel in opening the valve and before the last halt rotation of the hand wheel in closing the valve
3.23
opening torque
initial torque required to open the valve ftom the dosed position
3.24
closing torque
torque required to close the valve and obtain internal tightness
3.25
protection cap
device that may be screwed to a fitting permanently attached to the cylinder to protect a cylinder valve
3.26
shroudguard
device mat may be welded to the cylinder to protect a cylinder valve
3.27
gross mass
mass of the heaviest cylinder on which the valve is intended to be fitted, including any permanently attached accessories and the maximum mass of the LPG content
3.28
pressure relief valve
valve which automatically, without the assistance of any energy other than that of the fluid concerned. discharges a quantity of fluid so as to prevent a predetermined safe pressure being exceeded, and whoh is designed to re-close and prevent the further flow of fluid after normal pressure conditions of service have been restored
NOTE The Ioadmg due to the fluid pressure underneath the valve- sealing element Is opposed by a spring.
