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Презентация на тему Pipeline valve types and classification

OverviewValve classificationValve typesValve usageBlock valves/ shut-down valves/ shut-off valves
Pipeline valve types and classification OverviewValve classificationValve typesValve usageBlock valves/ shut-down valves/ shut-off valves Valve itselfVALVEcan stand for various Russian terms арматура, задвижки, клапаныValve is an Valve classificationValves can be classified in different ways:the function or purpose of Valve classification1. by function or purpose: •	To start and stop flow of Valve classification2. by closure member or mechanical motion•	Linear Motion Valves. The Valves Valve usageObligatory valve placement:Pipeline itselfPump and compressor stationsPressure regulator stationsMeter runsLauncher and receiver stationsBreakout tankageDistribution manifolds Valve usageBlock valve requirements:Full port gate valveBlock-and-bleed design (to insure leak-tight performance)Can Valve usageBreakout tank valves:Assurance of each tank isolation by inlet and outlet Block valves/ shut-down valves/ shut-off valvesRequirements:every 30-40 km installation. Besides, block valves Valve SpecificationsDurability/ strengthTightnessReliabilityExplosion safetyCorrosion resistance
Слайды презентации

Слайд 2 Overview
Valve classification
Valve types
Valve usage
Block valves/ shut-down valves/ shut-off

OverviewValve classificationValve typesValve usageBlock valves/ shut-down valves/ shut-off valves

valves


Слайд 3 Valve itself
VALVE
can stand for various
Russian terms
арматура,

Valve itselfVALVEcan stand for various Russian terms арматура, задвижки, клапаныValve is

задвижки, клапаны

Valve is an integral component used for controlling

& regulating flow of liquids or gases to maintain the process parameters such as flow, pressure etc.

Слайд 4 Valve classification
Valves can be classified in different ways:

the

Valve classificationValves can be classified in different ways:the function or purpose

function or purpose of application

2. the closure member or

mechanical motion


Слайд 5 Valve classification
1. by function or purpose:
• To start

Valve classification1. by function or purpose: •	To start and stop flow

and stop flow of fluids
• To regulate, throttle and control

fluid flow or pressure
• To prevent back-flow
• To relieve excess pressure / vacuum
Thus, the following types are distinguished:
•Shut-off Valves (Block valves/ shut-down)
•Non-return Valves (back-pressure valve)
•Control Valves
•Safety Valves (pressure-relief valve, pressure safety valve, pressure/vacuum-relief valve, emergency relief valve)


Слайд 6 Valve classification
2. by closure member or mechanical motion
• Linear

Valve classification2. by closure member or mechanical motion•	Linear Motion Valves. The

Motion Valves. The Valves in which the closure member,

as in gate, globe, diaphragm, pinch,, moves in a straight line to allow, stop, or throttle the flow.
• Rotary Motion Valves. When the Valve-closure member travels along an angular or circular path, as in butterfly, ball, plug, eccentric- and Swing Check Valves, the Valves are called rotary motion Valves.
• Quarter Turn Valves. Some rotary motion Valves require approximately a quarter turn, 0 through 90°, motion of the stem to go to fully open from a fully closed position or vice versa.


Слайд 7 Valve usage
Obligatory valve placement:
Pipeline itself
Pump and compressor stations
Pressure

Valve usageObligatory valve placement:Pipeline itselfPump and compressor stationsPressure regulator stationsMeter runsLauncher and receiver stationsBreakout tankageDistribution manifolds

regulator stations
Meter runs
Launcher and receiver stations
Breakout tankage
Distribution manifolds





Слайд 8 Valve usage
Block valve requirements:
Full port gate valve
Block-and-bleed design

Valve usageBlock valve requirements:Full port gate valveBlock-and-bleed design (to insure leak-tight

(to insure leak-tight performance)
Can be equipped with motor operator

valve.
Branch or lateral valve:
Leak tight
Block-and-bleed design
Full-port design is not necessary

Слайд 9 Valve usage
Breakout tank valves:
Assurance of each tank isolation

Valve usageBreakout tank valves:Assurance of each tank isolation by inlet and

by inlet and outlet valves.
Pump station valves:
Suction sides of

the station and discharge side to the pipeline, so there are suction valves and discharge valves.
Pipeline control valves:
Work in concert with centrifugal pumps
Usually vee-ball design
Controller presence

Слайд 10 Block valves/ shut-down valves/ shut-off valves
Requirements:
every 30-40 km

Block valves/ shut-down valves/ shut-off valvesRequirements:every 30-40 km installation. Besides, block

installation.
Besides, block valves should be installed :
- on

both banks of the river crossing in a case of two or three lines;
- in river crossing in a case of a line, however, in this very case the place of block valve installation is defined depending on the type of landscape close to the crossing;
- on both banks of the III type-bog which expends more than 500 m;
- at the beginning of every pipeline branch at a distance not less than 15 m;


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