GB/T 24919-2010Installation, operation, maintenance of industrial valves - General requirements (English PDF)

3.1 Connection Type

Way valve end of the pipe or equipment connections, including flanged, threaded connections, welded connections, clamp connections.

3.2 Driven approach drivingmeans

Actuate the valve operation mode, there are self-operated and external drive. Self refers to the valve for the internal medium pressure, temperature, etc. formed

Hard drive spool and other moving parts; rely on external forces driving means driving the valve disc and other moving parts, including manual, electric, pneumatic, hydraulic, electromagnetic

Drive and how they drive joint.

3.3 Working standard duty

Working standard valve includes a normally open, normally closed, short-time working, continuous duty, intermittent duty cycle.

3.4 Valve failure

Valve failure including seal failure, failure of the operation, such as the failure function. Seal failure and leakage including internal leakage. Action includes a drive failure Loss

Ling, stem stuck spool killed like. Depending on the function failure of valves and different, such as adjusting the flow rate is not accurate, reduced pressure instability, security

Pressure valve is not required to take-off and so on.

4.1 Pre-installation check

4.1.1

Valve installation should be checked before the valve product certification, installation instructions, etc. are complete.

4.1.2

should be visually inspected prior to valve installation shall meet the following requirements.

a) an outer surface shall not have cracks, blisters, mechanical damage, corrosion, dirt and other defects;

b) shall not fall off the nameplate, the technical parameters and system design requirements on the nameplate conform;

c) both ends of the valve should be protective cover protection;

GB/T 24925-2019 | GB/T 24921.2-2010 | GB/T 24921.1-2010 | GB/T 24917-2010 | […]