Product Description; General Description; Properties; Device Versions - Burkert 2730 Manuel D'utilisation

Type 2730 / 2731 / 2731K
Productdescription
5 PRODUCT DESCRIPTION
5.1 General description
The piston-controlled diaphragm control valve Type 2730 / 2731 /
2731K is suitable for liquid media.
Using neutral gases or air (control media), it controls the flow of dirty,
aggressive, ultrapure or sterile media, even highly viscous media can
be used (flow media).
The operation of the diaphragm control valve Type 2730 / 2731 /
2731K is possible only in combination with an control unit. Possible
control units are:
Positioner Type 8630, 8635, 8692, 8694, 8792
Process controller Type 8693, 8793
5.2

Properties

• Any flow direction.
• Self-draining for appropriate installation. The ends of the utilized
connections must be cylindrical.
• Free of empty space.
• Low-turbulence flow.
• High flow values by the streamlined valve body.
• Maintenance-free under normal conditions.
5.2.1 Device versions
Actuator sizes
The piston-controlled diaphragm control valve is available for the
following actuator sizes:
ø 80 mm, ø 100 mm, ø 125 mm.
Pilot pressure
Designs with lower pilot pressure (reduced spring force) are available
on request.
Contact your Bürkert sales office or our Sales Center, e-mail:
info@de.buerkert.com
5.3 Structure and function
The operation of the diaphragm control valve Type 2730 / 2731
/ 2731K is possible only in combination with an control unit.
Possible control units are:
Positioner Type 8630, 8635, 8692, 8694, 8792
Process controller Type 8693, 8793
5.3.1 Structure
The piston-controlled diaphragm control valve consists of a pneumati-
cally operated piston actuator and a 2/2-way valve body.
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