Higher performance at a competitive price

High safety level thanks to conveyed flow and reduced emissions

Lightweight and corrosion-free

VHS-C Pressure Relief Valves – the evolution of the VHS-type – consist of a cylindrically shaped polymer body with flanged connection spigot to the silo, an exhaust outlet elbow for duct connection, an elastic membrane able to re-establish pressure balance instantaneously, a counterweight kit to keep the valve closed under normal conditions, and a weather protection cover.

Function

The counterweight-loaded VHS-C Pressure Relief Valve has one decisive advantage over WAM’s other pressure relief valve, the VCP. Due to the moment of inertia of the helical springs on the VCP-type pressure relief valve, pressure balance is re-established quickly but not instantaneously. The VHS-C, on the other hand, does the job in real time. Through an interplay of pressure on different surface areas on both sides of a membrane fitted inside the valve casing, perfect pressure balance is achieved. In the event of excess pressure this interaction enables air from inside the silo to flow back into the atmosphere, whereas in case of suction pressure the air penetrates from the atmosphere into the silo.

Features

Vertical carbon steel or 304 stainless steel spigot
Casing diameter: 273 mm (10 in)
Exhaust outlet spout for connection to centralised suction system
Mechanical set-up for inductive signalling sensor
Limited number of components
Counterweight system never in contact with dust
Membrane and conveying pipe of special geometry manufactured from innovative materials
SINT engineering polymer casing and weather protection cover
Special properties of membrane and elbow prevent clogging and formation of material crusts
PATENTED

Benefits

High safety level for people and environment thanks to conveyed flow and reduced emissions
Lower operating and maintenance costs thanks to self-cleaning elbow and limited number of components
Dust recovery from conveyed emissions possible
Lightweight
Self-cleaning conveying pipe
Better performance than spring-loaded version at a competitive price

Options

EN 1935/2004-compliance
Manhole
Inductive sensors
Bird net
Setting kit

Download

Here below you will find all documents regarding this product. Click “Other Languages” for translated versions.

Select all

Language

Name

Issue

Latest edition

Code

Brochures

Language

Name

VHS-C - Membrane Pressure Relief Valves

Issue

Latest edition

06/2021

Code

203001752

Data Sheets

Language

Name

Datasheet Animal Feed Milling Equipment - VHS-C - ENG

Issue

Latest edition

12/2014

Code

Language

Name

Datasheet Concrete Production Plant Equipment - VHS-C - ENG

Issue

Latest edition

04/2015

Code

Language

Name

Datasheet Lime Dosing Equipment - VHS-C - ENG

Issue

Latest edition

04/2015

Code

Language

Name

Datasheet Paint and Varnish Processing - VHS-C - ENG

Issue

Latest edition

01/2015

Code

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