2031Tube Valve Body

p. 1/8www.burkert.com

Type 6012/6014P

Pilot valve

Type 8640/8644

Valve block

Type 8041

Electromagnetic

Flowmeter

Pneumatic operated 2/2-way Diaphragm Valve

Technical data

Port connection size DN15...50

Diaphragm size DN08...40

Port connections

Weld ends ASME BPE/DIN 11866 Series CMaterials

BodyActuatorPilot air portsSeal

Stainless steel 316LPPS (PA on request)

Stainless steel 1.4305EPDM, PTFE / EPDM (advanced PTFE/EPDM, FKM on request)

Fluid Neutral gases and liquids, high purity, sterile, aggressive or abrasive fluids

Viscosity up to viscous

Surface finishes (inner surface)

Electro polished Ra 0.38 µmFluid temperature

EPDM, PTFE/EPDM and ad-vanced PTFE/EPDM1) (on request)

FKM (on request)

-10...+130ºC (briefly up to +150°C for steam sterilisation)

-10...+130ºCAmbient temperature

PPS actuator

PA actuator (on request)

+5...+140°C for actuator size <100 mm +5...+90°C for actuator size 100 mm (briefly up to +140°C)

-10...+60°CControl fluid Neutral gases; airInstallation as required, preferably with actuator in upright position

1) Advanced PTFE/EPDM is recommended for sterilization cycle

• Light tube valve body

• Flow optimised body in stainless steel

• Zero dead volume

• Easy to weld

Type 2031 can be combined with...

The externally piloted diaphragm valve consists

of a pneumatically operated piston actuator, a

diaphragm and a 2-way tube valve body.

Bürkert’s patented hydroforming technology

allows the manufacturing of a flow optimized

stainless steel valve body with high surface

quality. A laser-welded flange ensures robust-

ness and hygienic design.

The reliable actuator is made of PPS, a very

resistant polymer. The different Bürkert dia-

phragms are optimized for a high lifetime.

The diaphragm valve with tube body is perfect

for hygienic application in the food and bever-

age, pharma, and cosmetic industries. It is

designed with zero dead leg and a high clean-

ability certified by EHEDG.

Type 8801

ELEMENT

On/Off System

Type 8697

Feedback

2031Tube Valve Body

p. 2/8

Technical data, continued

Port size (tube) Diaphragm size Actuator size ø Pilot pressure Operating pressure max. for seal material Kv values

EPDM PTFE/EPDM and advanced

PTFE/EPDM

[mm] [inch] [mm] [mm] [bar] [bar] [bar] [m3/h]

15 1/2 8 40 5.0...7 10 10 1.720 3/4 15 50 5.0...7 8 - 6.8

63 5.5...7 - 10 6.825 1 20 63 5.5...7 9 - 12.5

80 5.5...7 - 10 12.540 1 1/2 32 100 5.5...7 10 8 3050 2 40 100 5.5...7 6.5 - 40

125 5.5...7 - 10 40

Flow rate: Kv value water [m3/h]: Measured at +20°C, 1 bar pressure at valve inlet and free outlet.

Pressure valves [bar]: Overpressure to the atmospheric pressure

Installation for self-draining operation

XXXXXXXX / XXXXXXX / XXXXXX

marking forself-drain angle

= 15 up to 35º plus 3º to 5º inclination to the pipe axis.

Drain marks permanently marked on both sides of the valve body

show the correct mounting position to optimise drainability.

Body label

H 180°

1.4435316L(VP) XXXXXXXX

H XXXXXXXXXX

PN16 / CWP150

XXXXXXXX / XXXXXXX / XXXXXX

Heat number

Production number /

Serial numberCode surface finish /

customized text (optional)

Port connection & Tube dimensions

Company logo

material

nominal pressure

2031Tube Valve Body

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Approvals

Suitability for foodstuffs / sterile applications

• The composition of the EPDM, PTFE/EPDM and advanced PTFE/EPDM diaphragms corresponds to the Code of Federal Regulations, published by the FDA (Food and Drug Administration, USA).

• The composition of the EPDM, PTFE/EPDM and advanced PTFE/EPDM diaphragms is suitable for the application with food and

beverage (acc. to EC-Regulation 1935/2004/EC)

• The diaphragm valve with tube valve body and EPDM or PTFE has been evaluated for compliance with the Hygienic Equipment Design Criteria of the EHEDG

Materials

Optical position indicator Transparent cap polysulfone PSU

Actuator cover PPS

On request: PA (Polyamide)

Pilot air ports Thread G1/8” stainless steel 1.4305

Piston seal FKM

Guide Sinter metal

Actuator PPS

On request: PA (Polyamide)

Diaphragm EPDM, PTFE/EPDM

On request: advanced PTFE/EPDM, FKM

Valve body Stainless steel 316L

2031Tube Valve Body

p. 4/8

Valve system On/Off Classic

The diaphragm valve Type 2031 can be combined with our electrical position feedback to a valve system On/Off Classic.

The valve system On/Off Classic consists of:

• a electrical position feedback Type 8697 (see separate data sheet)

• a diaphragm valve Type 2031(see ordering chart, p. 6)

For the configuration of further valve systems please use the "Request for quotation" on p. 7

You order two components and receive a complete assembled and certified valve.

Diaphragm valve Type 2031Feedback

Type 8697

Valve System On/Off Classic

Type 2031 + 8697

Electrical position feedback information

When you click on the orange box "More info." below, you will come to our website for the resp. product where you can download the datasheet.

Feedback Type 8697

The Feedback for combination with actuators from the process valve series Classic 20xx is specially designed for the requirements of hygienic pro-

cess environments. Mechanical or inductive limit switches register the position of the valve.

Besides the electrical position feedback signal the status of the device is shown directly on the control head itself via LEDs.

The housing is easy to clean and features proven electrical IP protection and chemically resistant materials for use in hygienic process ing, in food,

beverage and pharmaceutical industries.

2031Tube Valve Body

p. 5/8

Dimensions [mm] - Valve On/Off Classic Type 2031 and valve system On/Off Basic

Weld ends port connection with feedback

Type 8697

ø D3

L

ø D

1

s

C

K H

ø 65.4

HG

ASME BPE/DIN 11866 Series C

Port connection

DN

Diaphragm

size

Actuator

size ø L ø D1 s ø D3 C K H HG

[mm] [inch] [mm] [mm] Feedback

15 1/2 8 40 90 12.7 1.65 53 34 G1/8 81 17620 3/4 15 50 117 19.05 1.65 64 39 G1/8 121 216

63 117 19.05 1.65 80 52 G1/4 138 23325 1 20 63 127 25.4 1.65 80 52 G1/4 146 241

80 127 25.4 1.65 101 60 G1/4 167 26240 1 1/2 32 100 159 38.1 1.65 127 73 G1/4 225 32050 2 40 100 190 50.8 1.65 127 73 G1/4 235 330

125 190 50.8 1.65 15 86 G1/4 273 368

2031Tube Valve Body

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Ordering chart diaphragm Valve Type 2031

Welded connection ASME BPE/DIN 11866 Series C

electropolished Ra 0.38 µm and Inspection certificate 3.1 acc. to EN-ISO 10204 (included in delivery)

Co

ntr

ol

fun

cti

on

Po

rt

co

nn

ecti

on

DN

Dia

ph

rag

m

siz

e

Actu

ato

r siz

e ø

[mm

]

Kv v

alu

e w

ate

r

[m3/h

]

Pil

ot

pre

ssu

re

[ba

r]

Ma

x. o

pe

rati

ng

pre

ssu

re [

ba

r]

Ite

m n

o

EP

DM

se

al

ma

teri

al

Ite

m n

o

PTF

E/E

PD

M

se

al

ma

teri

al

[mm

]

[in

ch

]

[mm

]

A 2/2-way valve, normally clo-sed (NC)

15 1/2 8 40 1.7 5.0...7 10 275 388 275 39020 3/4 15 50 6.8 5.0...7 8 275 391 -

63 6.8 5.0...7 10 - 275 39225 1 20 63 12.5 5.5...7 9 278 879 -

80 12.5 5.5...7 10 - 278 88040 1 1/2 32 100 30 5.5...7 10 278 881 -

30 5.5...7 8 - 278 88250 2 40 100 40 5.5...7 6.5 278 883 -

125 40 5.5...7 10 - 278 884

Control functionB (normally open: NO)

Materials Seal: Advanced PTFE/EPDM, FKM

AdditionalVersions with reduces spring force

Ordering chart for accessories

3/2-way pilot valves with banjo bolts

Seal material valve FKM, seal material banjo bolt NBR

Va

lve

fo

r

actu

ato

r siz

e

[Ø m

m]

Typ

e

Pre

ssu

re i

nle

t

P (

va

lve

bo

dy)

Se

rvic

e

po

rt A

(ba

njo

bo

lt)

Ori

fice

[mm

]

QN

n

va

lue

air

[l/m

in]

Pre

ssu

re

ran

ge

[ba

r]

Ele

ctr

ica

l co

il

co

nn

ecti

on

Ind

. S

td.

Po

we

r

co

nsu

mp

tio

n

[W]

Item no. per voltage/

frequency [V/Hz]

024/D

C

230/50

40-50 6012P G 1/4 G 1/8 1.2 48 0...10 Form B 4 552 295 552 298

63 6012P Tube fitting ø6 mm G 1/4 1.2 48 0...10 Form B 4 552 283 552 286

80-125 6014P G 1/4 G 1/4 2 120 0...10 Form A 8 424 103 424 107

Cable plug Type 2507, Form B or Type 2508, Form A

Item no.

Type 2507, Form B Industrial standard, 0...250 V without circuitry (Type 6012 P) 423 845

Type 2508, Form A acc. to DIN EN 175301-803, 0...250 V without circuitry (Type 6014 P, Type 0331P) 008 376

For further accessories see the the accessories data sheet Type 2XXX for the full options programme.

2031Tube Valve Body

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Valve system On/Off Classic – request for quotation

Please fill out and send to your nearest Bürkert office* with your inquiry or order

Company: Contact person:

Customer no.: Department:

Address: Tel./Fax.:

Postcode/town: E-Mail:

Note

You can fill out

the fields directly

in the PDF file

before printing

out the form.

= mandatory fields to fill out Quantity Required delivery date

Operating data

Pipe line DN PN

Pipe Material

Process fluid

Type of fluid Liquid Steam Gas

standard. Unit

Flow rate (Q, QN, W) 1)

Temperature at valve inlet

Absolute pressure at valve inlet

Steam Sterilisation Temperature

1) standard unit: Liquid Q = m3/h; Steam W = kg/h; Gas QN = Nm3/h

Valves features

Diaphragm size (orifice) DN

Type of connection Weld ends

Standard connection ASME BPE/DIN 11866 Series C

Surface finish Electropolished Ra 0.38

Control function NC1) NO1)

Pilot pressure min. max.

1) NC: normally closed by spring action; NO: normally open by spring actionPlease specify item no. (if known):

Certifications

Test report 2.2 acc. to EN-ISO 10204 (Item no. 803 722)

Inspection certificate 3.1 acc. to EN-ISO 10204 (included in delivery) EHEDG - TYPE EL-CLASS I

Certification of Conformity for the Surface Quality DIN4762-DIN4768-ISO/4287/1 (Item no. 804 175) Food & beverage (acc. to EC-Regulation 1935/2004/EC)

Certification of Conformity for Pickling and Electropolishing Processes (Item no. 444 900) FDA - USP certificate

continued on next page

2031Tube Valve Body

p. 8/8

To find your nearest Bürkert office, click on the orange box www.burkert.com

In case of special application conditions,please consult for advice.

Subject to alteration.© Christian Bürkert GmbH & Co. KG 1506/1_EU-en_00895291

Valve system On/Off Classic – request for quotation, continued

Comments

Feedback features Typ 8697 Click on the orange box „More info.“ below... you will come to our website for the resp. product where you can download the data sheet.

Without end position feedback Micro Switch 24 V DC Please specify item no. (if known):

Inductive Switch 2-wire NAMUR Micro Switch 0...250 V AC/DC

Inductive Switch 2-wire 24 V DC