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Valve Type Classifications

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Valve Type Classifications

Categories of Valves

Application Description
Flow regulating valves For controlling rate of flow.
Temperature regulating valves For controlling fluid temperature in a system.
Automatic process control valves For controlling rate of flow relative to value.
Anti vacuum valves An automatic type of air valve preventing the formation of vacuum in tanks or pipelines.
Blow down valves A valve which is used for cleaning sludge from a boiler.
Bulkhead valves A gate valve.
Free ball valves A valve in which a ball is free to rotate in any direction.
Fusible link or fire valves A fire prevention valve which has a weighted lever hold open by a wire and fusible link which melts at an increase of room temperature.
Hydraulic valves A control valve for water, oil, or hydraulic systems.
Jet dispersal valve A valve incorporating an element by virtue of which the energy within the emitting jet is dissipated.
Penstock A single faced type of valve consisting of an open frame and a door and used in terminal positions only. Normal located in tanks or channels for controlling flow in to a pipe.
Plate valves A gate valve incorporating a sluicing effect.
Radiator valves A valve controlling the flow of water through a radiator.
Rotary slide valve A valve in which a rotation of internal parts regulates flow by opening ar closing a series of segmental ports.
Rotary valve A spherical plug valve in which the plug, which rotates through 90o.
Solenoid valve A valve operated by by an electrical solenoid.
Spectacle eye valve A parallel slide valve.
Thermostatic mixing valve A valve which combines temperature.
Throttle valve A non tight closing butterfly valve.
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Related Documents

API - Valve Standards

An overview of the American Petroleum Institute - API - valve standards.

ASTM - Valve Standards

An overview of ASTM International - American Society for Testing and Materials - valve standards.

BSi - British Standard Valves

An overview of BSi - British Standard institute valve standards.

Chinese Valve Standards

Chinese standards for steel, cast iron and metal valves.

Control Valves - Cavitation

Control valves and cavitation, application ratio and multi stage control valves.

Control Valves - Flow Characteristics

Flow capacities vs. stem opening.

Control Valves - Leakage Classification

Seat leakage classification through control valves.

DIN - Valve Standards

An overview of DIN - Deutsches Institut für Normung - valve standards.

Heating Systems - Safety Valves Size vs. Boiler Power

Safety valves with boilers ranging 275 to 1500 kW.

ISO Valve Standards

An overview of ISO - International Organization for Standardization - valve standards.

JIS - Valve Standards

Japanese industrial valve standards and specifications from JAS - the Japanese Standards Association.

MSS - Valve Standards

Manufacturers Standardization Society - MSS - of the Valve and Fittings Industry - valve standards.

Safety Valves in Gas and Vapor Systems

Calculating relief valves in gas and vapor systems.

Straight Through Diaphragm Valves - Flow Coefficients

Flow coefficients - Cv - and flow factors - Kv - for straight through diaphragm valves.

Valve Abbreviations

US valve abbreviations commonly used in drawings and documentation.

Valve Selection Guide

Applications guide for selecting valves.

Valves - Specific Services

In case of a specific service - the choose of a valve may be simplified by following an established practice.

Valves - Typical Operating Temperatures

Operating temperatures for typical categories of valves - ball valves, butterfly valves and more.

Valves Types - Operating Size Ranges

Types of valves and their typical operating sizes.

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