solenoid valves

Most solenoid valves operate on a digital principle. They therefore

possess two distinct states, which are (1) - when the coil is

activated by an electrical current, and (2) - when the valve is resting

(without electricity). Valve functions are defined from the resting

position.

The direct acting or pilot operated solenoid valves may have two

functions:

Normally closed (NC)

A solenoid valve is normally closed (abbreviated - NC) if there is no

flow across the valve in its resting position (with no current on the

solenoid contacts).

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Please note that in the case of 3-way solenoid valves, port A is

open to port R which, for example, enables the valve’s single-action

cylinder to be exhausted to atmosphere.

Normally open (NO)

A solenoid valve is said to be“normally open” (abbreviated NO)

when it enables fluid to pass in its resting position (with no current

on the solenoid contacts).

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A specific choice of entry ports can change a valve’s function.

However, since balanced-force calculations take rebound effects,

coil effects and the effects of pressure exerted on the seal into

account, the performance of an NC valve fitted in an NO position

would be reduced. In this configuration it would be better to choose

a universal solenoid valve.

Latching or Bi-stable

applications a short electrical impulse enables the solenoid valve

to be opened or closed, and thanks to the residual effects of a

permanent magnet this is sufficient for maintaining the valve in a

particular working position with no electrical energy consumption.

A short impulse of inverted polarity ensures the valve’s return to its

previous position. Electrical power consumption and heating are

almost negligible.

Volumetric filler for carbonated beverages

In filling carbonated or non- carbonated beverages in PET containers, the fill quantity must be accurate. The Volumetric technique is the ideal solution for conductive products to be filled, because with this system, the fill quantity is accurately measured via an inductive flow meter. All filling process steps can be programmed easily and individually adjusted to the product to be filled and the container.

A variant of the VODM family offers the optimum solution for almost any product group ranging from mineral water to sparkling wine, soft drinks all the way to beverages that are sensitive to oxygen such as beer bottled PET containers. The well-proven filler is distinguished by its high availability, its flexibility, and its high reliability during continuous operation. More than 600 installed volumetric fillers in more than 50 countries prove the success of the Volumetric VODM series.

 the containers are conveyed through the machine by means of neck-handling. This, as well as fill quantity determination via inductive flow meter guarantee high flexibility and short change-over times. Depending on the pitch circle,a central or a tubular ring bowl is employed .

Product feed pipes connect the product tank with the filling valves. In each connecting pipe, there is an inductive flow meter which measures the quantity of the product flowing through the pipes via the product’s conductivity. Before filling, the container is pressed on and centered. Afterwards it is rinsed or pressurized with inert gas depending on the fill ing valve design. Non-carbonated beverages are filled pressure-less. When the valve stem opens, filling begins

n order to be able to cope with the different bottles and products to be filled, two filing speeds are available. Once the programmed fill quantity has been filled, the valve stem closes by means of a signal from the flow meter. After a settling phase, the pressure in the container‘s . 

head space is taken off via the sniffling valve. This sniffling step an all other filling steps can be adjusted to any product, any gas content and any filling temperature via elector-pneumatical controller.

Air Conveyor

The PET air conveyor neck handling system providing the following advantages from the previous system on the air conveyor.

Minimal Joints can be replaced by non skilled personnel less joints giving a smooth bottle flow less material used so replacement costs are minimal as the neck guide is fully clamped, small sections can be replaced

fully Clamped on straights and bends can be retrofitted to most existing air conveyor systems.

Once set up, the guide rail can be replaced without the need to be reset potential power savings

The Neck Guide Assembly consists of :

1-Neck Guide Rail

2-Neck Guide Holder

3- Neck rail clip

4-Nut

The side guides are set to specifically sized gauge which is measured for the running size of the bottle. The gauge centralizes both the neck and side guides so the bottles hang perfectly vertical

.