Page 5 - Bürkert

2/2 or 3/2-way Solenoid Valve
for aggressive medium

0121 G 3/8”

• Pivoted armature valve with manual 2 (A)
override
1 (P)
• Direct-acting with separating diaphragm
2(A)
• Different circuit functions
• Suitable for aggressive medium 1(P) 3(R)
• Body material plastic 2(A) 4(B)
• Threaded connection 1(P)

Type 0121 is a high quality, direct-acting 2/2 or 3/2 pivoted armature Envelope Dimensions [mm] (see datasheet for details)
solenoid valve that can be used in a wide range of applications for open-
ing, closing, dosing, mixing and distribution. The separation between the
magnetic system and the medium chamber consists of an intermediate D
separating diaphragm system.

Technical Data
Orifice DN4.0-8.0 mm
Body material PTFE, (PP, PVDF, Stainless steel 1.4401 on request)
PVC (resistant acc. DIN 8062, 8061)
Coil material Epoxy
Coil insulation class H
Seal material, medium FKM, FFKM, (EPDM on request) C
FKM Oxidizing acids and substances, oils, salt solutions,
exhaust gas, vacuum
FFKM Resistant to neutral and aggressive liquids and gases,
see Bürkert chemical resistance chart
Medium temperature
Body + seal
(Material combination)
PVC + FKM -10 °C to +50 °C
PTFE+ FKM -10 °C to +90 °C
PTFE + FFKM -10 °C to +90 °C
A
Ambient temperature Max. +50 °C B
Viscosity Max. 37 mm /s
2
Voltage tolerance ±10%
Duty cycle
Continuous operation 100% stainless steel body and for universal current (UC) A B C D
Intermittent operation with PVC body 10% (10 min) 65 35 91 46
with PP-, PTFE- and PVDF body 40% (10 min)
Electrical connection Cable plug (included)
Tag connector acc. to DIN EN 175301-803 Form A
Exceptions see Index under Ordering chart
Protection class IP 65 with cable or cable plug Options
Installation as required, preferably with actuator upright
• ATEX version
• Optical or electrical position feedback

Power consumption Response times
Inrush Hold Opening Closing
AC [VA] UC [W] AC [VA/W] UC [W] DC cold [W] DC [W] [ms] [ms]
30 40 15/8 3 11-12 8 15-20 15-20
Response times [ms]: Measured at valve outlet at 6 bar and +20 ºC
Opening: Pressure build-up 0 to 90%, Closing: pressure relief 100 to 10%

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