Teaching equipment : Study of an industrial regulation valve
 

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Study of an industrial regulation valve

DESCRIPTION

 

The unit is delivered complete with instrumentation, technical documentation, and instructions.

Designed and manufactured to industrial standards.

This unit is designed for various levels and fields of study.

The inlets and outlets can be connected by female safety plugs - Ø 4 mm

Option :
Utility module
 

Teaching equipment : Study of an industrial regulation valve - EVR 100

 

It is possible to connect this unit in series with another unit of the same range. The valve is used to activate the system.

TECHNICAL SPECIFICATIONS

A – Compressed air
B – Water return
C – Water supply

Regulation valve (2)
Stainless steel body CrNiMo 1,4581
Collar DN 15
Seat and flap CrNiMo (3 sets)
Exponential and linear characteristics
Kv = 0.1
Distance 15 mm
Tools for mounting/dismounting

Pneumatic servomotor (3)
Diaphragm area: 120 cmē
Diaphragm NBR
0,2…1 bar for distance of 15 mm
 

Variable section flow meter (1)
Accuracy ą 1.6% of the full scale

 

Communication positioner Hart (4)
Connections 1/4 NPT
Control : 4-20 mA
Growing/damping action sense

Differential pressure sensor (5)
Silicium monocrystal cell
Digital resonator
Accuracy : ą 0.075%
3-way Manifold
Digital local display

Current generator (6)
4-20 mA with selector switch and indicator

1/4-turn valve for connection in series (S)

PEDAGOGIC APPLICATIONS

 

• Illustration of theoretical concepts such as
– Definition of the flow rate coefficient of a regulation valve
– Ratio between Cv and Kv

• Determination of the coefficient of Kv flow rate
– With or without any positioner
– For a linear or exponential characteristic
– For various configurations of the seat/flap

• Graphing the characteristics of the regulation valve
– Flow rate as a function of the control
– Differential pressure as a function of the control
– Influence of the positioner on the linearity, hysteresis

Teaching equipment : Study of an industrial regulation valve - schema EVR 100


UTILITIES
Electricity : 230 VAC – single-phase
Water : 10 L/min – 3 bar (44 psi)
Compressed air : 6 bar (90 psi) maximum

DIMENSIONS AND WEIGHT
Length : 780 mm
Width : 570 mm
Height : 590 mm
Weight : 40 kg


 

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Study of an industrial regulation valve


Didatec Technologie - ZA du Parc 42490 Fraisses -  France -   Tel : 33 (0)4 77 10 10 10 -  Fax : 33 (0)4 77 61 56 49   
E-Mail : didatec.technologie@wanadoo.fr