Samson EB 01a, Монтаж и эксплуатация

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3-3
EB 01a_EN
March 2023 edition
Subject to technical changes
Design and principle of operation
3.3 Attachments
The following accessories are available either individually or in
combinations:
− Positioner
− Limit switch
− Solenoid valves
− Supply air regulator/ fi lter
− Pressure gauge mounting blocks
− Pneumatic volume booster
Other additional equipment is possible according to speci fi ca-
tions on request.
3.4 Technical data
The type plates of the valve and actuator give information about
the valve version, see Chapter “2 Markings on the device”.
Detailed information is available on the data sheet

TB 01a.
3.5 Assembling the valve
The current DIN-compliant version of the BR 01a valve has de-
sign differences in the stem sealing in comparison to the current
ANSI version, so that they cannot be documented in one con-
struction manual.
− Chapter 3.5.1 describes the assembly of the DIN valve,
DN | 25 to 150 .
− Chapter 3.5.2 describes the assembly of the DIN valve,
DN | 200 .
− Chapter 3.5.3 describes the assembly of the ANSI valve,
NPS 1 to 3 and the DIN valve, DN | 25 to 80 [Edition 2022].
− Chapter3.5.4 describes the assembly of the ANSI valve, NPS
4 to 6 .
− Chapter 3.5.5 describes the assembly of the ANSI valve,
NPS 8 .
Before assembly
To assemble the valve, all parts must be prepared, e.g. the parts
are carefully cleaned and placed on a soft mat (rubber mat
or other). Keep in mind that plastic parts are almost always very
soft and very delicate, and in particular the sealing surfaces may
not be damaged.
The position and arrangement of the individual parts shown in
the drawings must be observed during assembly.
Info
Info
Damage to the valve due to cold welding of the screws in the
body!
PFEIFFER recommends a heavy-duty grease paste (e.g. Gleitmo
805, manufacturer Fuchs) to prevent the cold-welding of the
screws in the bodies.
Ö
Do not use this product for valves with use of oxygen. A suit-
able lubricant must be selected for grease-free valves, espe-
cially for use with oxygen.
Damage to the parts of the stem sealing in contact with media
due to unsuitable grease.
Ö
When assembling the stem, bellows, plug, bonnet fl ange and
all other parts of the stem sealing in contact with media, only
use water-free grease (e.g. halocarbon grease).
3.5.1 Assembling the DIN valve,
DN
| 25 | to | 150
3.5.1.1 Assembling the valve body
Ö
Place the valve body (1) with the cover-side fl ange on a
clean, soft surface at working height so that the bearing area
of the seat is easy to reach.
Ö
Clean the PTFE lining of the body with detergent.
Ö
Lay the PTFE O-ring (3) into the groove of the body.
Depending on the temperature, it may be necessary to shrink the
O-ring with cold spray or by cooling it down in the refrigerator.
Ö
Insert the seat (4) into the body.
Ö
Press the spacer (5) into the seat (4) in the body.
Reduction in fl ow rate due to improper assembly!
Ö
Make sure that the passage opening in the spacer (5) aligns
with the inlet opening of the valve.
Ö
The upper edge of the pressure piece must be fl at with the
sealing surface of the housing fl ange.
Ö
With a 5 mm drill bit, drill diagonally approx. 10 mm deep
into the spacer (5) from the sealing surface.
Ö
Secure the spacer against twisting with a piece of PTFE cord
(14) inserted into this borehole.
Ö
Lay the PTFE washer (6) on the spacer in the body.
Ö
Place the elastomer inlay (7) on the PTFE washer.
Ö
Carefully place the bottom fl ange (10) on the body.
Ö
Fit the washer (6) and inlay (7) centrally in the bottom fl ange.
Ö
Insert the screws (11) and align using the nuts (12). Tighten
the screws evenly in a criss-cross pattern.
NOTE
Tip
NOTE