The document provides an overview of stop valves, including their functions, types, designs, features, advantages, and applications. Stop valves are essential for controlling the flow of liquids in various settings, from household plumbing to industrial machinery. They are available in two types, designed for efficiency and ease of maintenance, and can be operated manually or automatically.

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2. Introduction:
 Function of Stop Valve
 Types of Stop Valve
 Design of Stop Valve
 Features of Stop Valve
 Advantages of Stop Valve
 Application of Stop Valve
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 Stop Valve Design

4.  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.
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5.  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.
 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.
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6.  Types of Stop Valve
 Stop valves (SVA) are available in two types
 1. Angle-way Type
 2. Straight-way Type
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7.  Design of Stop Valve
 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.
 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/+150°C (–76/+302°F). The packing glands are equipped with a scraper ring to
prevent penetration of dirt and ice into the packing gland of the stop valve.
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 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.
 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.

9.  Advantages of Stop Valve
 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
doesn’t require any lubrication
 User friendly application and easy to handle
 Provides quality performance for longer life
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10.  Applications of Stop Valve
 Household water supply taps
 Dishwashing machines
 Washing machines
 Bathrooms as well as main water supply
control
 Used in gardens for water supply and control
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