Bürkert
2/2-way diaphragm valve with pneumatic plastic actuator (Type CLASSIC)
Type 2031 / Article No. 348491
Product description
The externally controlled diaphragm valve Type 2031 consists of a pneumatically operated piston actuator, a diaphragm and a 2-way valve body. The proven and robust actuator with a plastic housing ensures use in hygienic or aggressive ambient conditions. The flow-efficient valve bodies with little dead space enable high flow rates and a wide range of possible uses. The valve body and the diaphragm are available in all common materials and variants. The actuator has a compact, autoclavable design (PPS variant). The integration of the automation units 8690/8691/8697 is possible in all configuration levels (can be retrofitted). An explosion-proof ATEX / IECEx device variant is available. The add-on body is optionally available in plastic or stainless steel. The actuator is equipped with an integrated, optical position indicator as standard, optionally a min./max. stroke limiter can be installed.
- Commodity Codes
- 84818087
- Country
- DE
Technical attributes
Name |
Value |
Unit |
|---|---|---|
| Type | 2031 | |
| Product sub-group | On/off valves | |
| Main valve operating principle | Diaphragm valve | |
| Valve piloting type | Pneumatic | |
| Valve construction | Valve complete | |
| Actuator version | Classic | |
| Control function | A - normally closed (NC) | |
| Valve function number of switching positions | 2 | |
| Actuator size | 80 | mm |
| Actuator material | PA (Polyamide) | |
| Control air connection material | Stainless steel | |
| Control air connection type | Internal thread | |
| Control air connection thread type | G | |
| Control air connection diameter (inch) | 1/4 inch | |
| Control air connection position | 90° to direction of line | |
| Control air hole diameter | 3 | mm |
| O-ring between cover and bush | No | |
| Position monitoring via magnetic piston | No | |
| Valve function manual actuation | No | |
| Additional manual actuation included | No | |
| Body nominal size | 25 | mm |
| Body nominal size (IN) | 1 inch | |
| Diaphragm coupling | Bayonet | |
| Diaphragm material | PTFE with EPDM support back | |
| Fluidic port connection number | 2 | |
| Valve body material category | Metals | |
| Valve body material | Stainless steel | |
| Valve raw body manufacture | cast | |
| Manufacturer´s test certificate 3.1 included | Yes | |
| Valve body surface treatment internal | mechanically polished | |
| Valve body surface treatment external | untreated | |
| Surface finish internal | RA 0,76 µm | |
| Port connection 1 size DN | DN 25 | |
| Port connection 1 type | Weld end | |
| Port connection 1 pipe standards 1 | DIN 11850 R2 | |
| Port connection 1 pipe standard 2 | DIN 11866 serie A | |
| Port connection 1 inner diameter (mm) | 26 | mm |
| Port connection 1 wall thickness (mm) | 1,5 | mm |
| Port connection 1 outer diameter (mm) | 29 | mm |
| Port connection 2 size DN | DN 25 | |
| Port connection 2 type | Weld end | |
| Port connection 2 pipe standards 1 | DIN 11850 R2 | |
| Port connection 2 pipe standard 2 | DIN 11866 serie A | |
| Port connection 2 inner diameter (mm) | 26 | mm |
| Port connection 2 wall thickness (mm) | 1,5 | mm |
| Port connection 2 outer diameter (mm) | 29 | mm |
| Nominal pressure min | 0 | bar |
| Nominal pressure max | 7,5 | bar |
| Control pressure min | 5,5 | bar |
| Control pressure max | 10 | bar |
| Temperature environment min | -10 | °C |
| Temperature environment max | 60 | °C |
| Temperature medium min | -10 | °C |
| Temperature medium max | 100 | °C |
| Kv value (water) | 13,6 | m3/h |
| Nominal pressure (DIN EN 1333) | PN 16 | |
| Nominal Pressure (DIN EN 1759) | Class 150 | |
| CIP capable | Yes | |
| SIP capable | Yes | |
| Piston seal material | NBR (Nitrile rubber) | |
| Weight | 2,41 | kg |
Downloads
Data Sheets
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
Type 2031 data sheet | pneumatically operated diaphragm valve with INOX actuator | 550 kB | EN / EU |
|
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Type 2031 data sheet | pneumatically operated diaphragm valve with cast body | 2 MB | EN / EU |
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Type 2031 data sheet | pneumatically operated diaphragm valve with cold formed body K (VA) | 2 MB | EN / EU |
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Type 2031 data sheet | pneumatically operated diaphragm valve with forged body | 2 MB | EN / EU |
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Type 2031 data sheet | pneumatically operated diaphragm valve with tube valve body TVB(VP) | 1 MB | EN / EU |
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Type 2031 data sheet | pneumatically operated, compact diaphragm valve | 503 kB | EN / EU |
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Type 2XXX data sheet | accessory for pneumatic acutators CLASSIC and ELEMENT | 791 kB | EN / EU |
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Tipo 2000 hoja de datos | accesorios para válvula de asiento inclinado | 1 MB | ES / ES |
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Tipo 2031 folha de dados | válvula de membrana de acionamento pneumático | 830 kB | PT / BR |
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Tipo 2031 hoja de datos | válvula de membrana [cuerpo de laválvula forjado] | 625 kB | ES / ES |
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Typ 2031 Datenblatt | pneumatisch betätigtes Membranventil mit Feingussgehäuse | 2 MB | DE / DE |
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Typ 2031 Datenblatt | pneumatisch betätigtes Membranventil mit INOX-Antrieb | 546 kB | DE / DE |
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Typ 2031 Datenblatt | pneumatisch betätigtes Membranventil mit Rohrumformgehäuse TVB (VP) | 2 MB | DE / DE |
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Typ 2031 Datenblatt | pneumatisch betätigtes Membranventil mit Schmiedegehäuse | 2 MB | DE / DE |
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Typ 2031 Datenblatt | pneumatisch betätigtes Membranventil mit kaltumgef. Gehäuse K (VA) | 2 MB | DE / DE |
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Typ 2031 Datenblatt | pneumatisch betätigtes, kompaktes Membranventil | 422 kB | DE / DE |
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Typ 2XXX Datenblatt | Zubehör für pneumatische Antriebe CLASSIC und ELEMENT | 800 kB | DE / DE |
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Type 2031 fiche technique | vanne pneumatique à membrane avec actionneur en inox | 1 MB | FR / FR |
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类型 2031 参数表 | 二位二通隔膜阀，锻造阀体，焊接端和卡箍连接，端口连接 DN8 — 100 | 2 MB | ZH / CN |
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类型 2031 铸造阀门 参数表 | 二位二通隔膜阀，铸造阀体， 焊接端和卡箍连接，端口连接 DN4 — 50 | 2 MB | ZH / CN |
User Manuals
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
Additional manual Type 2031 | PE05 Removing the pressure piece from diaphragm valves | 1 MB | EN,FR,DE / EU |
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Additional manual Type 2xxx 3xxx | Angles for self-draining of diaphragm valves | 667 kB | EN / EU |
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Additional manual Type xxxx |PX51 use in the potentially explosive area Category 2 | 273 kB | EN,FR,DE / EU |
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OnOff position feedback | 2 MB | EN,FR,DE / EU |
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Operating Instructions Type 2030 203X | Piston-operated diaphragm valve, DN65 ? DN100 | 2 MB | EN,FR,DE / EU |
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Operating Instructions Type 2030 203X | Piston-operated diaphragm valve, DN8 DN65 | 2 MB | EN / EU |
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Quickstart Type 2030 203X | Piston operated diaphragm valve, diameter DN65 - DN100 | 1 MB | EN,FR,DE / EU |
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Quickstart Type 2030 203X | Piston operated diaphragm valves, Diameter DN8 - DN65 | 1 MB | EN / EU |
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Quickstart Type 2031 | INOX 2/2-way diaphragm valve | 928 kB | EN / EU |
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Service manual Type 2000 2002 2012 203X | Stroke limitation | 2 MB | EN,FR,DE / EU |
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Service manual Type 2030 203X | Replacement of seal set / Conversion of control function | 2 MB | EN / EU |
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Bedienungsanleitung Typ 2030 203X | Kolbengesteuerte Membranventile, Nennweiten DN8 - DN65 | 2 MB | DE / DE |
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Manual de usuario Tipo 2030 | Cabezal de control [DN65-DN80-DN100] | 296 kB | ES / ES |
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Manual de usuario Tipo 2030 | Cabezal de control [DN8-DN65] | 364 kB | ES / ES |
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Manuel d'utilisation Type 2030 203X | Vannes à membrane, diamètre nominale DN8 DN65 | 2 MB | FR / FR |
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Manuel de service Type 2030 2031 2032 2033 2037 | Replacement of the seal set | 2 MB | FR / FR |
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Manuel supplémentaire Type 2xxx 3xxx | Angle de vidange automatique des vannes à membrane | 657 kB | FR / FR |
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Návod k obsluze Typ 2030, 2031, 2031 K, 2032, 2033, 2037 | Membránové ventily s pístovým | 3 MB | CS / CZ |
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Quickstart Typ 2030 203X | Kolbengesteuerte Membranventile,Nennweiten DN8 - DN65 | 992 kB | DE / DE |
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Quickstart Typ 2031 | INOX 2/2-Wege-Membranventil | 931 kB | DE / DE |
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Quickstart Type 2030 203X | Vanne à membrane commandée par pistion, DN8 - DN65 | 1 MB | FR / FR |
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Quickstart Type 2031 | INOX Vanne à membrane 2/2 voies | 919 kB | FR / FR |
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Serviceanleitung Typ 2030 2031 2032 2033 2037 | Wechsel vonDichtungssätzen | 2 MB | DE / DE |
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Zusatzanleitung Typ 2xxx 3xxx| Winkelangaben zur Selbstentleerung von Membranventilen | 664 kB | DE / DE |
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使用说明 2030、2031、2031 K、2032、2033、2037 型 | 活塞控制隔膜阀，驱动器尺寸 40-125 mm，标称直径 | 4 MB | ZH / CN |
EU Declaration of Conformity
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
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EU-DoC|EU Declaration | 2 MB | EN,FR,DE |
Flyers and Catalogues
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
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Product Overview Process and Control Valves | 31 MB | EN / EU |
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Advantages Tube Valve Body | 154 kB | EN / EU |
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Diaphragm competence for hygienic applications | 1 MB | EN / EU |
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On/Off and Control Valves | 1 MB | EN / EU |
