Construction Of The Control Valve; Media - bürkert 2702 Bedienungsanleitung

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ECHNICAL ATA

CONSTRUCTION OF THE CONTROL VALVE

2/2-way piston actuated valve with control plug and angle seat body
Control function A (closed by spring force)
Normally close
Control function B (open in rest position)
Normally open
Actuator material:
Body material:
Seal materials:

MEDIA

Liquid and gaseous media that do not attack the body and seal materials.
Control medium Quality classes according to DIN ISO 8573-1
Dust content Class 5: Max. particle size 40 µm; max. particle density 10 mg/m
Water content Class 3: Max. pressure dew point -20 °C or min. 10 degrees below the
lowest operating temperature
Oil content Class 5: Max. 25 mg/m
Class 3: Max. 1 mg/m
Note: Higher demands placed on the positioner must be observed!
NOTE The permitted operating pressure and temperature of the medium are listed on the rating
plate and in the following tables. With regard to the permissible seat leakage, the values
given in DIN EN 1349 are complied with,whereby for the steel/steel seal, leakage class IV
and for the PTFE/steel leakage class VI apply.
Pilot pressure
Actuator size 80 (F)
Actuator size 100 (G)
Fluid pressure
Actuator size F
Actuator size F
Actuator size F
Actuator size F
Actuator size G
Actuator size G
10 - 2702
PA (polyamide) or PPS
stainless steel 316L
steel/steel (1.4571) or PTFE/steel
in conjunction with Bürkert positioners
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in conjunction with SIDE Control Type 8635
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5.5 - 10 bar
5.5 - 7 bar
DN 15 0 - 16 bar
DN 20 0 - 16 bar
DN 25 0 - 16 bar
DN 32 0 - 15 bar
DN 40 0 - 12,5 bar
DN 50 0 - 7,2 bar
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