Technical Information Center

In the technical information center you will find various articles related to fluid control. Whether you're looking for background articles about the design principles of valves, calculators to dimension valves, or chemical resistance of materials, this reference will guide you. If you can't find the information you're looking for, please contact our customer service.

Product Information

Selection Criteria & Wizards

Application Examples

Installation & Troubleshooting

Selection Wizard

Complete the questions to find suitable valves directly:

2-way
3-way

Type:

2-Way Solenoid Valve

2-Way Electric Ball Valve

Solenoid Valve or Ball Valve?

Solenoid Valves: 2-Way Solenoid Valve

The valve is actuated with an electric current through the solenoid (electromagnet).

Switches directly.
From 1/8 inch up to 2 inch.
Normally Closed or Normally Open.
Only for clean media.
Uses energy as long as electrically energized.
(Semi-)direct operated: from 0 bar pressure differential.
Indirect operated: from ±0.5 bar pressure diff.
Only one direction of pressure.
Brass, Stainless Steel or Plastic housing.
EPDM, FKM, NBR of PTFE seals.

Electric Ball Valves: 2-Way Electric Ball Valve

The flow is controlled with a drilled sphere (ball) which rotates around its axis, perpendicular to the bore. The ball rotates with the help of an electric motor.

Operates from 0 bar.
Close gradually (±10s).
Energy efficient.
1/2, 3/4 or 1 inch.
For both flow directions.
Brass Housing / PTFE sealing.
Less sensitive to dirt.

Function:

NC = Normally Closed (most chosen): The valve is closed when the coil is not electrically energized.
NO = Normally Open: The valve is open when the coil is not electrically energized.

System:

Indirect operated solenoid valves need a pressure differential over the inlet and outlet port for proper operation. If the pressure differential is too low (f.e. a gravity fed system or a closed circuit), only (semi-)direct operated solenoid valves can be used. These operate from a zero bar pressure differential.

Medium:

The type of medium defines the material choice of the valve body and seals. By selecting 'Other', you can choose the material for the valve body and seals.

Tip: Use the material table.

Valve:

Seal:

Port:

Most valves are provided with internal thread (BSPP = British Standard Pipe Parallel). Use the table as a guideline for sizing:

Valve	Pipe ∅
1/8 inch	± 4 - 8 mm
1/4 inch	± 6 - 12 mm
3/8 inch	± 8 - 15 mm
1/2 inch	± 10 - 16 mm
3/4 inch	± 15 - 22 mm
1 inch	± 20 - 30 mm
1½ inch	± 25 - 50 mm
2 inch	± 40 - 60 mm