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Stop Valve-Types and Working

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What is stop valve Stop valve (SVA) is very efficient and cost effective product. are having comprehensive range of stop valves which is used in various applications from household to industrial purposes. – PowerPoint PPT presentation

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Title: Stop Valve-Types and Working


1
Stop Valve-Types and Working
2
CONTENTS
  • What is stop valve
  • Function of stop valve
  • Types of stop valve
  • Design of stop valve (SVA)
  • Features of stop valve
  • Advantages of stop valve
  • Applications of stop valve

3
What is stop valve
  • Stop valve (SVA) is very efficient and cost
    effective product. are having comprehensive range
    of stop valves which is used in various
    applications from household to industrial
    purposes.

4
Function of stop valve
  • The stop valves (SVA) are used to shut off flow
    of hot or cold water in plumbing fixture.  Stop
    valve is a valve system which is designed to stop
    flow of liquid through a pipe it is generally
    used in important machinery or a human
    workstation. There are many day to day
    applications in which we will find use of SVAs
    such as faucet, icemaker, bathrooms, dishwasher
    and washing machines.
  • A stop valve (SVA) can be operated manually or
    automatically. Manual SVAs generally have a screw
    handle to stop and allow the fluid to flow
    through the pipe, which is most commonly used
    valve in plumbing applications. These valves are
    installed in between the fixture and the piping
    which stub out from the walls or flooring. Stop
    valves permit to perform routine maintenance, for
    example, channel change and deplete cleaning, and
    in addition to supplant the whole apparatus or
    machine or make minor repairs, for example,
    changing gaskets or water supply connectors.

5
Types of stop valve
  • Stop valves (SVA) are available in two types
  • 1. Angle-way Type
  • 2. Straight-way Type
  • Versions with Standard neck (SVA-S).
  • These valves are exceptionally intended to
    meet all modern refrigeration application
    prerequisites and are to provide favorable stream
    qualities and are anything but difficult to
    decimate and repair when vital. They support is
    very simple consequently Stop valves are favored
    by numerous refrigeration applications. The stop
    valve cone is intended to guarantee consummate
    shutting and withstand a high framework throb and
    vibration, which can be available particularly in
    the release line.

6
Design of stop valve (SVA)
  • Stop valve is designed with prospect to use
    in industrial refrigeration system it consist of
    three major parts namely valve cone, spindle,
    packing gland the brief description is given
    below.
  •  
  • Valve Cone
  • The valve cone can be turned on the axle.
    Along these lines there will be no erosion
    between the cone and the seat when the valve is
    opened and shut and the extraordinary plan will
    maintain a strategic distance from cone turn
    because of throb and vibration when the valve is
    in vacant position. A Teflon fixing ring
    furnishes consummate fixing with least shutting
    power.
  • Spindle
  • The spindle is made up of polished
    stainless steel, ideal for leap seal sealing.
  • Packing gland
  • It is a low temperature packing gland that
    ensures a perfect tightness in the range
    60/150C (76/302F). The packing glands are
    equipped with a scraper ring to prevent
    penetration of dirt and ice into the packing
    gland of the stop valve.

7
Features of Stop Valve
  • Applicable to HCFC, HFC, R717 (Ammonia) and R744
    (CO2).
  • Can be used in chemical and petrochemical
    applications.
  • Modular Concept
  • Each valve is available with several different
    connection types and sizes.
  • Possible to convert Standard neck stop valve
    (MSVA-S) any other product in the MSVL family
    (regulating valve, stop check valve, check valve
    or strainer) just by replacing the complete top
    part.
  • Fast and easy valve overhaul service. It is easy
    to replace the top part and no welding is needed.
  • Optional accessories
  • Heavy duty industrial hand wheel for frequent
    operation.
  • Cap for infrequent operation.
  • Available in angle-way and straight-way versions
    with Standard neck
  • Each valve type is clearly marked with type, size
    and performance range.
  • The valves and caps are prepared for sealing, to
    prevent operation by unauthorized persons, using
    a seal wire.
  • Internal metal backseating DN 15 - 65 (¼ - 2½
    in.)
  • Internal PTFE back seating DN 80 - 150 (6 in.)
  • Can accept flow in both directions.
  • Equipped with stainless steel bolts. Max. working
    pressure is
  • 52 bar g (7 range 60/150C (76/302F)

8
Advantages of stop valve
  • Because of reliable operation and best
    quality product Stop valve have following
    advantages
  •  
  • It is a very economic product with superior
    quality
  • Maintenance is very easy and they are simple to
    repair
  • Stop valve is very efficient product and doesnt
    require any lubrication
  • User friendly application and easy to handle
  • Provides quality performance for longer life 54
    psi g)
  • Temperature

9
Applications of stop valve
  • As the Stop valve has many advantages over
    the conventional one they are used in many day
    today applications
  • Household water supply taps
  • Dishwashing machines
  • Washing machines
  • Bathrooms as well as main water supply control
  • Used in gardens for water supply and control

10
THANK YOU
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