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Torex Wam Level & Pressure Monitoring & Safety Components
 
Torex Wam ILK - Capacitive Level Indicator
 
Description

When the material is present near the probe, the electronic module detects the capacitance variation of the volume around the probe and switches the electro-mechanical contact.

Function

ILK Level Indicators have been designed for level monitoring of bins, hoppers or silos by means of the capacitance variation detection around the probe
 
Performance & Technical Features - Benefits

Product sensitivity: Dielectric constant (Dk)>1.6; max.grain size 30 mm
Power supply: 21…27 VDC (±10%) ; max.1.5 W
Signal Output: Floating relay SPDT AC max.250 V, 3A non inductive DC max.30V , 5A non inductive
Standard connection: G 1½” - G 2½”
Enclosure: IP66
Working temperature
inside vessel - 40°C +100°C (up to +120°C if ambient temp. is lower than 50°C)
Ambient temperature - 40°C +60°C
Max. process pressure: 16 bar
Thread fitting and probe material: glass fibre reinforced plastic G 1 ½” – G 2 ½”
Casing material: aluminium alloy
Adjustable signal delay from 0.5 s to 20 s
Adjustable signal output logic
Simple and reliable construction, as no moving parts are present;
No product in contact with the casing;
Suitable for extremely light products;
Factory pre-calibrated allows measurement for most applications with no calibration on-site;
Four Ranges Adjustable Sensitivity;
Double threaded fitting ensures system compatibility;
Easy and quick installation and replacement;

Options & Accessories

Threaded Bushes
Made from carbon steel, can be supplied to be welded on to the silo/hopper wall for a fast installation of the ILK
Thread: 1” ½ ISO 228
Thread 2” ½ ISO 228
 
Torex Wam ILS - Continuous Level Measurement Devices
 
Description

ILS is a Continuous Level Measurement system for any kind of powdery or granular material stored in silos or containers.

Function

The feel weight of the ILS-system moves, microprocessor-controlled, down into the container. Upon impact on the bulk material it is pulled back to its upper stop position. By capturing the distance that the feel weight has moved the material level is measured.
 
Performance & Technical Features - Benefits

Output: 0/4-20mA
ATEX-certified, zone 20/21
Microprocessor-controlled measurement with intelligent supervision
Internal tape cleaner for particularly difficult products (tape version only)
Different feel weights, suitable for every application
Robust die-cast casing with protection class IP65
Highly accurate high-tech measurement, easy to understand
Appropriate for all kinds of bulk solids
Simple installation and commissioning
No mechanical forces on the silo roof (sensor only just touches the surface of the bulk material)
Completely insensitive to:
Di-electricity and conductivity of bulk material
Dust inside the silo
Changes in moisture content of bulk material
Materials that tend to stick
 
Torex Wam ILT - Rotary Level Indicators
 
Description

ILT-type Bin Level Indicators have been designed for electric signalling by rotary action of minimum or maximum material level inside bins, hoppers or silos.
 
Function

As long as material is present, the paddle of the ILT Bin Level Indicator does not rotate. As soon as the material level sinks below the paddle radius, rotation restarts activating other system components. The top or side-mounted indicators are commonly used for materials having a bulk density ranging from 0.5t/m³ (0.02 lb per cu in) to 2t/m³ (0.08 lb per cu in).

Performance & Technical Features - Benefits

24 V (AC), 50-60 Hz
48 V (AC), 50-60 Hz
110 V (AC), 50-60 Hz
230 V (AC), 50-60 Hz
24 V (DC)
Standard connection: 1½"
ATEX-certified, zone 20 / 21
Easy to install
Cost-effective

Options & Accessories

Spring paddle
 
Torex Wam ILV - Vibrating Level Limit Switches
 
Description

ILV-type Bin Level Indicators have been designed for electric signalling by vibration of a fork of minimum or maximum material level inside bins, hoppers or silos.

Function

The ILV device is used for level monitoring in all types of bins or silos and for all kinds of powders or granular materials.
 
Performance & Technical Features - Benefits

Suitable for powdery and granular bulk solids
Measuring of very light bulk solids
Measuring as full, demand or empty detector
Available in ATEX version, zone 20 / 21 (dust explosion of flammable dust: ILVA and ILVB only)
Extendible up to 4 metres (4.4 yds) (ILVB), or up to 20 metres (22 yds) (ILVC)
 
Torex Wam IPE - Electronic Differential Pressure Meters
 
Description

The IPE-type Electronic Pressure Meter consists of a self-cleaning wear and temperature-resistant membrane, a body manufactured in aluminium alloy, an electronic card and assembly fittings (bolts and gasket).

Function

The IPE-type Electronic Pressure Meter, by means of an electronic reading device which is activated by the membrane, supervises the pressure rising inside bins or silos during the filling and purging of the tanker.
 
Performance & Technical Features - Benefits

Operating temperature: - 30° C to + 80° C (- 22° F to + 176° F)
Cable size: 2 x 1.5mm² (2 x 0.002 sq in)
Electronic card
Protection: IP 55

Options & Accessories

To be installed on top of IPX-type weld-on spigot (to be ordered separately).
 
Torex Wam IPM - Differential Pressure Gauges
 
Description

The IPM-type Pressure Switch consists of a self-cleaning wear and temperature-resistant membrane, a body manufactured in aluminium alloy, a contact switch and assembly fittings (bolts and gasket).

Function

The IPM-type Pressure Switch, by means of a diaphragm switch, signals the excess pressure inside bins or silos during the filling and purging of the tanker. It is also used as a level indicator in hoppers.
 
Performance & Technical Features - Benefits

Operating temperature: - 30° C to + 80° C (- 22° F to + 176° F)
Cable size: 2 x 1.5 mm² (2 x 0.002 sq in)
Micro-switch
Protection: IP 55
Pre-set activating pressure: 0.04 bar (0.6 psi)
Electromechanical contacts: 15 A / 250 V
Power consumption: 0.5 W

Options & Accessories

To be installed on top of IPX-type weld-on spigot (to be ordered separately).
 
Wam VCP - Spring-Loaded Pressure Relief Valves
 
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.
 
Function

In the VCP Pressure Relief Valve, 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 preset value the lid is pushed up and the 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 the "closed" position.

Performance & Technical Features - Benefits

Carbon steel body (VCP2731B) painted RAL 7001 or 304 stainless steel body (VCP2732B)
Weather protection cover in stainless steel
Body diameter: 273mm (10 in); 356mm (14 in)
Air volume up to 13,000m3/h (7,650 cfm)
Equipment for inductive signalling sensors
Both versions preset for maximum negative pressure of - 0.005 bar (- 0.07 psi) and maximum excess pressure of + 0.05 bar (0.72 psi).
Optionally valves can be set for maximum excess pressure ranging from + 0.03 bar (0.4 psi) to + 0.08 bar (1.16 psi), as well as for maximum negative pressure of - 0.001 bar (- 0.014 psi)
Weight: 9.5 kg (21 lbs) for Ø 273mm (10 in); 23 kg (51 lbs) for Ø 356mm (14 in)
Lightweight design and reduced overall dimensions make handling extremely comfortable
High resistance to atmospheric agents
Easy to fit
Quick maintenance

Options & Accessories

ATEX-certified version for zone 21
Inspection hatch
Inductive sensors
Bird net 
 
Wam VHS - Membrane Pressure Relief Valves
 
Description

VHS Pressure Relief Valves consist of a cylindrically shaped metal body with clamp connection spigot to the silo, an exhaust outlet spout for duct connection, an elastic diaphragm able to re-establish pressure balance instantaneously, a counterweight kit to keep the Valve closed under normal conditions, and a weather protection cover.
 
Function

For some time, tighter safety regulations in industrialized countries have ensured stricter enforcement of rules regarding the safeguarding of silos and bins against excess and negative pressure. There is no question that other countries will have to follow this example.

The counterweight-loaded VHS-type Pressure Relief Valve has one decisive advantage over the other type manufactured by WAM, the VCP. Due to the moment of inertia of the helical springs on the VCP, pressure balance is re-established extremely quickly but not instantaneously.

The VHS, on the other hand, does the job in real time. Through an interplay of pressure on different surface areas on both sides of a diaphragm fitted inside the valve housing, 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; in case of suction pressure the air penetrates from the atmosphere into the silo.

Performance & Technical Features - Benefits

Casing in carbon steel (VHS2731B), painted RAL 7001 (silver-grey) or in 304 stainless steel (VHS2732B)
Body diameter = 273mm (10 in)
Air volume up to 5,000m3/h (2,950 cfm)
Exhaust outlet spout for connection with centralised suction system
These Valves are preset for a maximum negative pressure of - 0.005 bar (0.07 psi) and a maximum excess pressure of + 0.05 bar (0.72 psi).
Should customer requirements be different, the Valves can be set at a maximum excess pressure ranging from + 0.02 bar (0.29 psi) to + 0.08 bar (1.16 psi).
Weight: 22 kg (49 lbs)
Small overall dimensions
Short maintenance time
The working principle of the VHS Pressure Relief Valve itself is innovative. Its special double-acting diaphragm pervious to air sees to both excess and suction pressure relief.
The special properties of the diaphragm avoid blockage, as well as the formation of material crusts. 
 
Wamgroup
 


Wamgroup catalogues
 
Torex Wam Level & Pressure Monitoring & Safety Components
 
Torex Wam ILK - Capacitive Level Indicator Torex Wam ILS - Continuous Level Measurement Devices Torex Wam ILT - Rotary Level Indicators
Torex Wam ILV - Vibrating Level Limit Switches Torex Wam IPE - Electronic Differential Pressure Meters Torex Wam IPM - Differential Pressure Gauges
Wam VCP - Spring-Loaded Pressure Relief Valves Wam VHS - Membrane Pressure Relief Valves  

 

 
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