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Pressure Relief Valves

Stainless Steel Pressure Relief Valve

Pressure Release Valve are used the discharge the high pressure in the cement silo. Those valves start to run when the pressure value reaches the pre-set pressure limit value. Those valves are the equipments that keeps the pressure in the cement silo in desired values and prevent the cement silo......

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Pressure Release Valve are used the discharge the high pressure in the cement silo. Those valves start to run when the pressure value reaches the pre-set pressure limit value.

Those valves are the equipments that keeps the pressure in the cement silo in desired values and prevent the cement silo filter from breaking down.

The cement is transferred from silobus to cement silo with high pressure. In case there is no cement in the silobus, only the air is transferred into the cement silo and thus there occures high pressure in the cement silo. At this moment if Pressure Release Valve do not start to run , the cement silo and the cement silo filter can be damaged seriously.


TECHNICAL SPECS

Description

VCP Pressure Relief Valves consist of a cylindrical casing with a bottom flange to be connected with a spigot welded on the silo roof, a disc shape inner steel lid for negative pressure operation held in position by a central spring rod, an outside steel ring for excess pressure kept in position by three spring rods, gaskets, and a weather protection cover.


Spring-Loaded Pressure Relief Valves

Function

Helical springs keep the valve lids closed when the pressure value remains within the preset limits. The three outside spring rods keep the external ring-shaped lid firmly closed as long as the force generated by the pressure inside the silo does not overcome the spring force. Once the pressure exceeds the pre-set value the lid is pushed up and pressure can escape. The smaller lid covers the central circular opening of the external lid from below. It is held in the middle by a single spring rod and is pressed onto the external lid by the normal air pressure inside the silo. In the event of suction pressure the spring is compressed and allows the lid to drop. The air entering the silo from outside ensures rapid pressure balance and pushes the central lid back up into "closed" position.

For applications in the food industry a version compliant with European Regulation (EC) No. 1935/2004 is available.


Features

Two sizes available,273mm and 375mm

Specifications include: VCP2731B VCP2732B VCP2733B VCP2731C WAM

Flow rate: up to 13,000 m3/h (7,650 cfm)

Painted carbon steel or 304 stainless steel casing

Stainless steel weather protection cover

Mechanical set-up for inductive signalling sensor

Preset for maximum negative pressure of -0.005 bar (-0.07 psi) and maximum excess pressure of 0.05 bar (0.72 psi)

Benefits

Lightweight design and reduced overall dimensions for extremely comfortable handling

Easy to fit

Quick maintenance

Options

ATEX-certified version

Compliance with European Regulation (EC) No. 1935/2004

Optionally different settings available



VCP273 Specifications

Item #

Body  Material

(A) Inch

(B) Inch

(C) Inch

(D) Inch

(E) Inch

(F) Inch

Weight (Kg)

VCP.273

Carbon Steel

15.75

14.02

4.92

4.72

12.80

10.75

9.5

VCP.273.1

Carbon Steel with Stainless    Steel Cover

20.67

18.43

6.89

4.72

15.75

10.75 OD

23

VCP.273.2

304 S S Stainless Steel

20.67

18.43

6.89

4.72

15.75

10.75 OD

23

VCP.273.3

316 S S Stainless Steel

20.67

18.43

6.89

4.72

15.75

10.75 OD

23


12(001)

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