DIN 3357-1

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DEUTSCHE NORM October 1989

DC621.646.616-034

DIN

3357

Metal ball valves

Part 1

eneral requirements and methods

of

test

Kugelhhne; allgemeine Angaben fr Kugelhhne aus metallischen Werkstoffen

Supersedes

August

1982

edition.

1 Field

of

application

This standard provides general information regarding the presentation of standards dealing with general purpose metal

ball valves.

It

specifies details to be included

in

the standard designation,and also requirements and methods of test for

ball valves with regard to dimensions, valve pattern, trim, body materials and marking.

2

Nominal sizes and pressure ratings

The nominal sizes shall be selected from DIN

2402

and the pressure ratings, from DIN

2401

Part 1

3

Designation

The standard designation for ball valves

as

specified in the DIN3357 eries of standards shall take the following form:

Ball

valve DIN

3357 X XXXX PN XXX XXX XXX

Term

DIN number

Hyphen

Letter symbol denoting face-to-face or centre-to-face

dlmension if different sizes are assigned to one

pressure rating

Nominal size

Symbol denoting pressure rating'

Nominal pressure

Hyphen

Code number (number of relevant Part of DIN 3357

Type symbol (the type symbol covers valve pattern, material and trim)

4

Dimensions

4.1

Face-to-face and centre-to-face dimensions

The face-to-face or centre-to-face dimension shall be selected from DIN

3202

Part 1 flanged end ball valves),DIN

3202

Part 2 weld end ball valves), DIN3202Part3 wafer type ball valves), DIN3202Part 4 (threaded end ball valves), or from

DIN

3202

Part

5

(ball valves with compression ends).

4.2 Space requirement

In DIN

3357

Parts

2

o 7,the space requirement dimensions are specified as the maximum dimensions of the enveloping

body enclosing a ball valve with handwheel.

In the case of ball valves which are not capable of being operated by a handwhee1,the height required is the distance be-

tween bottom end of valve body and top end

of

stem.

Continued on pages 2 o 7

~ ~

th Verlag Gmb H, Berlin, has the exclusiv e right of sale for German Standards

[DIN-Nonnen).

DIN

3357 Pari 1 Eng/ . Price

group

09 90

.

Sales

No.

u107

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Page 2 DIN 3357 Part 1

One piece body

With open

bottom

ealed Axial entry Top entry

4.3 Vahreends

Valve ends may be designed as

a) flanged ends, with mating dimensions as specif ied in DIN 2501 Part 1;

b)

weld ends, with mating dimensions as specified in DIN 3239 Part 1;

c) threaded ends, with internal thread as specified in DIN 2999 Part

1;

d)

threaded ends, with NPT internal thread as specif ied in ANSI

B

2.1;

e) compression ends, as specified in DIN 2353;

r)

threaded ends, with internal and external thread as specified in I S 0 228 Part 1;

g

ball type nipple screwed union, as specified in DIN 7601.

mpes and

trim

5.1 Body

construction

Split body

Wafer type

body

(three piece)

Single or multiple

split

Table 1.

1

2

3

4

10 to 100 NBR*), CRZ), PA'), POM')

-

10

to + 150 EPDMZ), FEPI)

- 10to+200 FPM3)

-

196 to

+

200

PTFE'), PFA1)

5.2 Stem seal

The stem seal shall be of the self-sealing type.

5.3 Seat seal

The seat seal shall be of the self-sealing type.

5.4

Trim material

The type

of

trim required foragiven ballvalve shall

B

defined by specifying heca sgoryofthe stem,seat and boi-,'connec.>r

seal.The maximum working pressure corresponding o the pressure rating can only be fully uti lizedfor the emperature anges

associated with the particular seal category.

Table 2.

~~~~~

Seal category Suitable materials (examples)

I

5

-

50 to

+

400 I t4), metal, graphite

1) As in DIN 7728 Part 1.

2 As in VDI 2537.

3

As in VDI 2531.

4)

As in DIN 3754 Part 1.

In he relevant product standards DIN 3357Parts 2

to

7), narrower imits may be specified or the temperature anges given in

table 2.

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DIN 3357 Part 1

Page 3

Table

3.

Pressure temperature

ratings

for se l category 4 ball valves

The maximum working pressures specified in table 3 are minimum values and shall apply for seal materials without fi ller (Le.

asbestos-free materials), ntermediate values being obtained by linear interpolation.The maximum working pressure or tem-

peratures from 96C to-30C are not to be specified before the manufacturer has been consulted.

5.5 Handwheel

Unless otherwise specified in DIN 3 3 s Parts 2 to 7 ball valves shall be supplied with a handwheel.

6 Body materials

The materials listed

in

table 4 are materials of the pressure containing parts

of

the body, he choice of body material from

among the materials belonging to a particular material group being up to the manufacturer.The body port ends may also be

made of materials as specified in DIN 1629, DIN 1630, DIN 17172 and 17175.

Table 4.

Material group

Lamellar graphite cast iron

Nodular graphite cast iron

Unalloyed and low alloy steel

3e e cutting steel

Stainless steel

Material

number

0.6020

0.6025

0.7040

0.7043

0.7050

1 O037

1 O254

1 O050

1 O460

1 O501

1.0619

1 O401

1 O403

1

O402

1 O404

1 O501

-

1 O715

1.0718

1.4000

1.4027

1.4301

1.4308

1.431

O

1.4401

1.4404

1.4406

1.4408

1.4410

1.454 1

1.4571

1.4581

Material designation

GG-20

GG-25

GGG-40

GGG-40.3

GGG-50

St 37-2

St

37

St 50-2

C 22.3

C 22.8

c 35

GS-C 25

C 15

C 15Pb

c 22

C 22 Pb

c 35

9 SMn 28

9 SMnPb 28

X 7 C r 1 3

G-X 20 Cr 14

X 5 CrNi 189

G-X 6 CrNi 189

X 12 CrNi 177

X 5 CrNiMo 18 10

X 2 CrNiMo 1810

X 2 CrNiMoN 18 12

G-X 6 CrNiMo 18 10

X 10 CrNiTi 189

X 10 CrNiMoTi 18 10

G-X 7 CrNiMoNb 18 10

G-X 10 CtNiMo 189

Specified in

DIN 1691

DIN 1691

DIN 1693 Part 1

DIN 1693Part 1

DIN 1693 Part 1

DIN 17100

DIN 1629

DIN 17100

VdTV Material sheet 364

5)

VdTV Material sheet 3505)

DIN

1652

DIN 17245

DIN 17210

Not specified.

DIN 17200

Not specified.

DIN 17200

DIN 1651

DIN 1651

DIN 17440

DIN 17445

DIN 17440

DIN 17445

DIN 17445

DIN 17440

DIN 17440

DIN 17440

DIN 17445

DIN 17445

DIN 17440

DIN 17440

DIN 17445

i

Obtainable from: Maxirnilian Verlag, Postfach 3 71, D-4900 Herford.

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Table 4 (concluded).

Material group

Steel with

ow

temperature toughness

Fine grain structural steel

Copper alloys

Aluminium alloys

Material

number

1 O356

1.7219

1.6902

1.1156

1

O508

1 O566

1 O565

2.0380

2.0401

2.0360

2.1020

2.1 030

2.1050.01

2.1096.01

2.0340.02

2.1086.01

~

3.2151 O1

3.2341 O1

3.2341 O2

3.2383.01

3.2383.02

3.2382.05

3.2581 O1

3.3241.01

3.2315.71

3.3206

3.3535

~~

Material designation

TTSt 35

GS-26 CrMo 4

G-X 6 CrNi 1810

GS-Ck 24

TStE 315

TStE 355

WStE 36

CuZn39Pb2

CuZn39Pb3

CuZn40*)

CuSn6

CuSn8

G-CuSn 10

G-CuSn5ZnPb

GK-CuZn37Pb

G-CuSnl OZn

~

G-ALS~GCU~

G-AISi5Mg

GK-AISi5Mg

G-AlSi1OMg(C)

GK-AlSi1OMg(C)

GD-AlSi1OMg

G-AISi12

G-AIMg3Si

AlMgSi1 F28

AlMgSi0,5

AiMg3

Specified in

SEW 6806,

SEW 6856)

SEW 6856)

SEW 6856)

SEW 0896)

SEW 0896)

SEW 0896

DIN 17 660

DIN 17660

DIN 17 660

DIN 17662

DIN 17662

DIN 1705

DIN 1705

DIN 1709

DIN 1705

DIN 1725 Part 2

DIN 1725 Part 2

DIN 1725 Part2

DIN 1725 Part 2

DIN 1725 Part 2

DIN 1725 Part 2

DIN 1725 Part 2

DIN 1725 Part 2

DIN 1747 Part 1

DIN 1725 Part 1

DIN 1725 Part 1

) Note. This symbol, as used in the standard designations given in DIN 3357 Parts 4 and 5, represents a group of

3 Obtainable from Verlag StahleisenmbH, Postfach 82 29, D-4000 Dsseldorf.

alloys.

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DIN3357Part 1 Page 5

7 Requirements and testing

Ball valves shall meet the requirements given in tables 5 and 6. Compliance with the requirements listed in table 5 shall be

checked by the manufacturer for every valve,compliance with those listed

in

table 6, by n-process testing on the basis of ran-

dom sampling.

Table

5.

Ser. No.

1

2

3

4

5

6

7

8

9

Requirement

Compliance with the purchase order data

~~~

Type, pattern and trim material

On delivery, valves shall be in their as ordered condi-

tion.

Marking

The marking on the valves shall comply with the

standard and be legible.

Surfaces

The surfaces shall exhibit no defects likely to impair

safety or proper functioning of the valve.

Protective coatings

The parts that require protection shall be provided

with a protective coating.

~

Actuation

The valve shall be capable of being actuated properly

on delivery. In the as installed position of the valve,

the stem positions shall be clearly identifiable.

~~ ~~

Strength of valve body

In the strength test, the body shall show no signs of

deformation for the specified test duration.

Tightness of body and stem seal

In the tightness test, the body connector seal shall be

tight for the specified duration of test. Leakage rate 1

shall apply to the tightness of the stem seal.

Seat tightness

Seat leakage rate 1shall apply for seal categories 1 to

4, and leakage rate

2

or seal category

5

valves when

subjected to the nominal pressure or the maximum

differential pressure.

If the production cycle time is shorter than the test

juration specified in

DIN 3230

Part

3,

he test dura-

tion for all valves shall be equal to the cycle time, ran-

Jom samples being taken and tested to test level 3

'or the test duration specified in

DIN

3230Part 3.

Testing as in

DIN

3230

AA

DIN 3230 AB

DIN 3230

C

DIN

3230

- AE

DIN 3230 P

DIN

3230

- AG

DIN

3230

- BA, the test duration being equal

to with a minimum of 10s.

In the case of PN 4 valves, the strength test may

be carried out together with the tightness test,

using air.

DN

10

DIN

3230

- BO, the test duration being equal

to with a minimum of

10s.

N

10

DIN3230 BN or BO

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Requirement

Dimensions

The dimensions as specified in the dimensional

standards shall lie within the permissible olerances.

Condition of end faces

The surface condition of the end faces shall comply

with the specifications of the relevant flange

standard.

Table 6.

Testing as in

DIN 3230 -AD, test level 2

DIN 3230 -AF, test level 2

Ser. No.

1

2

Additional requirements and methods of test which are specified in the relevant technical rules (e.g. DIN 3230 Parts 4 to 6,

TRD

3,AD-Mefkblgtter (AD Instruct ion sheets)7)) shall be agreed at the time of ordering.

9 Marking

Marking of valves shall be as specified in EN 19.

Standards referred to and other documents

DIN 1629

DIN 1630

DIN 1651

DIN 1652

DIN 1691

DIN 1693 Part

1

DIN 1705

DIN 1709

DIN 1725 Part 1

DIN 1725 Part2

DIN 1747 Part 1

DIN 2353

DIN 2401 Part 1

DIN 2402

DIN 2501 Part

DIN 2999 Part

1

DIN 3202 Part 1

DIN 3202 Part2

DIN 3202 Part 3

DIN 3202 Part 4

DIN 3202 Part5

DIN 3230Part3

DIN 3230 Part4

DIN 3230 Part5

DIN 3230Part6

DIN 3239 Part

1

DIN 3357 Part 2

DIN 3357 Part 3

DIN 3357 Pa rt4

DIN 3357 Part5

DIN 3357Part6

DIN 3357Part7

DIN 3754 Part 1

Seamless circular unalloyed steel tubes subject to special requirements; technical delivery conditions

High performance seamless circular unalloyed steel tubes; technical delivery conditions

Free cutting steels; technical delivery conditions

Bright unalloyed steel; technical delivery conditions

Cast iron with lamellar graphite (grey cast iron); properties

Cast iron with nodular graphite; unalloyed and low alloy grades

Copper-tin and copper-tin-zinc casting alloys; castings

Copper-zinc casting alloys; castings

Aluminium wrought alloys

Aluminium casting alloys; sand casting, gravity die casting, pressure die casting, investment casting

Wrought aluminium and aluminium alloy rod and bar; properties

Solderless compression fittings; screwed union assemblies

Components subject to internal or external pressure; pressure and temperature specifications; con-

cepts and pressure ratings

Pipelines; nominal sizes, concept and grading

Flanges; mating dimensions

Pipe threads for tubes and fittings: parallel nternal thread and taper external thread; dimensions

Face-to-faceand centre-to-face dimensions; flanged valves

End-to-face and centre-to-end dimensions; weld end valves

Face-to-face dimensions; wafer type valves

Face-to-faceand centre-to-face dimensions; valves with female thread connection

Face-to-faceand centre-to-face dimensions; valves with compression ends

Technical delivery condit ions for valves, summary of test methods

Technical delivery conditions for valves; drinking water valves; requirements and testing

Technical delivery conditions for valves; valves for gas applications; requirements and testing

Technical delivery conditions for valves; valves for combust ible liquids; requirements and testing

Valve welding ends

Ball valves; full bore steel ball valves

Ball valves; reduced bore steel bal l valves

Ball valves; ful l bore non-ferrous metal ball valves

Ball valves; reduced bore non-ferrous metal ball valves

Ball valves; full bore cast iron ball valves

Ball valves; reduced bore cast iron ball valves

Gasket materials; compressed asbestos fibre sheets; dimensions, requirements and testing

7 Obtainable from

Beuih

Verlag GmbH,BurggrafenstraBe6, -1000 Berlin 30 and Carl Heymanns VerlagKG uxemburger

Stra6e 449, D-5000 Kln 1.

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DIN 3357 Part 1 Page 7

DIN 7601

DIN 7728Part

1

DIN 17100

DIN 17172

DIN 17175

DIN 17200

DIN 17210

DIN 17245

DIN 17440

DIN 17445

DIN 17660

DIN 17662

I S 0

228 Part 1

EN 19

VDI 2531

VDI 2537

Ball type nipple screwed pipe unions; screwed pipe union assemblies

Plastics; symbols for homopolymers, copolymers and polymer mixtures

Steels for general structural purposes; quality standard

Steel pipes for long-distancepipelines or combustible iquids and gases; technical delivery conditions

Seamless tubes of heat-resistantsteels; technical delivery conditions

Steels for quenching and tempering; technical delivery conditions

Case hardening steels; technical delivery conditions

Ferritic steel castings with elevated temperature properties; echnical delivery conditions

Stainless steels; technical delivery conditions for plate and sheet, hot rol led strip, wire rod, drawn wire,

steels bars, forgings and semi-finished products

Stainless steel castings; technical delivery conditions

Wrought copper alloys: copper-zinc alloys; composition

Wrought copper alloys; copper-tin alloys; composition

Pipe threads where pressure-tight oints are not made on the threads; designation,dimensions and toler-

ances

Marking of general purpose industr ial valves

Oberflchenschutz

durch

Beschichtungen

und

Auskleidungen mit organischen Werkstoffen; Wahl der

Unerkstoffe und Verfahren (Surface protect ion using organic materials; selection of coating materialsand

processes)

Oberflchenschutzmit organischen Werkstoffen; Oberf/chenschutz mit Bahnen auf Basis von Natur-und

Synthesekautschuk (Surface protection using organic materials; surface protection with rubber and elas-

tomer sheeting)

VdThl-Werkstoffblatt

VdTV

Material sheet)

350

5)

Unlegierter Walz- und Schmiedestahl (Unalloyed rolled steel and forged

steel)

VdTV-Werkstoffblatt 3645) Flansche aus uniegiertem Stahl (Unalloyed steel flanges)

Stahl-isen-Werkstot /aZt (Iron and steel materialssheet) 0896) SchweiBbareFeinkornbaust h/e;Gtevorschriften (Weldable

fine-grain structural steels: quality specifications)

Stahl-Eisen-Werkstoffblait 6806) Kakzhe Sthle; Gtevorschriften (Steel with low temperature toughness, quality speci-

fications)

Stahl-Eisen-Werkstof fb la~

85 Kaltzher StahlguB; Gtevorschriften (Steel casting with

low

temperature toughness, qual ity

specifications)

ANSI B 2.1 8 Pipe threads (except dry seal)

Previous edit ions

DIN 3357 Part 1: 12.81, 08.82.

Amendments

In comparison with the August 1982 edition, he temperature ange for seal category4 specified n table

2

has been amended

to - 96C to 200C (instead of 230C).

International Patent Classification

F 16 K 5/06

For 9, ee page 3.

For 6 .see page

4.

8 Obtainable from Beuth Verlag GmbH Auslandsnormenvermitt lung), BurggrafenstraBe 6,D-1000 Berlin 30.

Documents

DIN 3357-1