Operation & Maintenance Manual of A240 NAMUR Solenoid Valves
1. Description
PROVAL A240 NAMUR Type Solenoid valves are designed for use on double and single acting pneumatic valve actuators with
compressed air or non-corrosive and non flammable gases. Please keep this manual for your future reference and maintenance.
2. Areas of Application
PROVAL A240 NAMUR Solenoid valves can be used on Standard industrial applications
as well as in explosive atmospheres with gases or combustable dust of the category 2
Group II according to EN 13463-1 only if suitableexplosion proof coil (magnet) is used.
This manual only refers to valve body and does not cover the coil (magnet). Please refer
to coil (magnet) manufacturers application details. In case of use of explosion proof
coils, due to thickness of coil an extension adaptor plate is required to be used between
the valve and the actuator.
Figure-1 : Label of Solenoid Valves
3. Main Parts & Dimensions
In order to avoid any failure, the solenoid valves must be
installed and initiated by skilled persons. Please read carefully
the below instructions and follow up the steps carefully.
• Verify that the valve is correctly chosen for your application
• Please take appropriate measures to avoid accidental activation
and improper external influence
• Consider the manual of the magnet coil manufacturer for the
electrical initiation
• Protect the equipment and cables from any damage
• Avoid static charging or peripheral devices
• Ensure that the equipment will be available for regular cleaning
• Avoid strong bending of air tubes
Coil
Nut
O-Ring
Coil With Connector
Explossion Proof
Coil (magnet)
Functional
Sealing
Valve
Body
1/4"
G/NPT
Main
Air
Inlet
(Port.1)
1/4"
G/NPT
Exhaust
Port
(Port.3)
1/4"
G/NPT
Exhaust
Port
(Port.5)
Manual
Override
All ports must remain open. The solenoid valve will not be able to operate if any unused ports are clsoed.
Use only suitable silencers / speed reducers to avoid dirt coming inside the valve.
During the functioning of the valve the magnet coil is heating-up. In order to avoid burning do not touch
the coils while operating.
