Start-Up; Safety Instructions; Flow Direction - Burkert 2100 Guide Rapide

8

sTarT-uP

8.1

safety instructions

Warning!
risk of injury from improper operation!
Improper operation may result in injuries as well as damage to the
device and the area around it.
▶ Before start-up, ensure that the operating personnel are familiar
with and completely understand the contents of the operating
instructions.
▶ Observe the safety instructions and intended use.
▶ Only adequately trained personnel may operate the equipment/
the device.
8.2 Pilot pressure
Warning!
for control function i – danger if pilot pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the device with
pilot pressure, then switch on the medium..
→
Set the pilot pressure according to the type label specifications,
chapter "6 Technical data" and flow direction (chapter "8.3 Flow
direction").
14
english
Type 2100
Start-up
8.3

flow direction

CFA/CFI CFB/CFI
Flow direction below the seat
(closing against the medium)
Fig. 7: Flow direction below and above the seat
8.3.1 flow direction above the seat
Control function A, CFA: closes by spring force against the medium
flow. Control function B, CFB: closes with the control pressure against
the medium flow. The medium pressure supports the opening of the
valve.
Warning!
risk of injury caused by the lines and device rupturing.
▶ Use valves with flow direction above the seat for gaseous media
and steam only.
To ensure complete opening, the minimum pilot pressure
must be used.
8.3.2 flow direction below the seat
Control function A, CFA: closes by spring force against the medium
flow. Control function B, CFB: closes with the control pressure against
the medium flow. The medium pressure supports the opening of the
valve.
CFA
Flow direction above the seat
(closing with the medium)