Pfeiffer Chemie-Armaturenbau GmbH • Telefon: +49 2152 2005-0 • Fax: +49 2152 1580 • E-Mail: [email protected] • Internet: www.pfeiffer-armaturen.com
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The equipment may only be dismounted and disassem-
bled by skilled staff who are familiar with the assembly,
the start-up and the operation of this product.
Skilled staff in the sense of these repair and assembly instruc-
tions are persons who, as a result of their training, their knowl-
edge and their experience, as well as their knowledge of the
relevant standards, are able to judge the tasks assigned to them
and are able to recognize possible dangers.
1. Design, operation and dimensions
Design, operation and dimensions as well as all further details and
technical data may be found in the
data sheet
<
TB 20b_EN
>.
2. Installation, start-up and maintenance
Guidelines for the installation, start-up and maintenance are to be
found in the
operating instructions
<
BA 20a-01_EN
> for pneumatic ball valves, resp.
<
BA 20a-02_EN
> for hand-operated ball valves.
Fig. 2 – Cross-section through a ball valve Series 20b => for parts list see table 1 on page 2
Maintenance
Ball Valve Series 20b
Fig. 1 – Ball valve Series 20b with AT - Actuator Series 31a
0. Introduction
These instructions are intended to support the user in
the assembly and repair of ball valves of the Series
20b.
Technical details, as a result of the further development
of the valves mentioned in these instructions, are sub-
ject to alteration.
The text and illustrations do not necessarily display the
scope of supply or an eventual order of spare parts.
Drawings and graphics are not to scale. Customer-
related special designs, which are not in accordance
with our standard offer, are not shown.
The transfer of these instructions to third parties is only
allowed with the written approval of
Pfeiffer Chemie-Armaturenbau GmbH.
