K17

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Description

Lug type soft-seated butterfly valve K 17

  • Lug type soft-seated butterfly valve
  • Centric design
  • For installation between flanges
  • DIN EN 1092-1, PN 10/16, ANSI 150 lbs.
  • Two-piece body with lugs One-piece disc/stem
  • DN 350 – DN 500
  • Suitable for dead-end service up to 10 bar, depending on the working temperature

Approvals

           

  • Controlled manufacturing through AD 2000 - WO/TRD 100

  • CE identification complies with the safety standards of the

    European pressure equipment directive PED 97/23/EC

  • GOST-R Certificate for the Russian Federation

  • Pressure test:

    DIN EN12266-1, P10/P11/P12-A

    DIN 3230,T3 – BA/BO-1, DIN3230,T5,T6

  • Approvals:

    Germanischer Lloyd, Lloyd´s Register of Shipping, Det Norske Veritas (DNV)

Product features

On the numbered markings you receive further information

1. Standard flange connection

acc. to ISO 5211/DIN 3337 for easy mounting of all types of actuators

2. Bearing

with secondary seal

3. Primary seal

the seal has a labyrinth layout and is integrated in the seat. This design guarantees the pressure-resistant sealing to the outside.

4. Seat

multifunctional sealing element, maintenance-free, having a long service life. Based on the construction (dovetail) the seat is safely locked between body and flanges

5. Disc and stem

One-piece design - large free cross-section, low pressure loss

6. Two-piece body

length acc. to DIN 3202 K1

Torque chart

 

Application 1

Application 2

DN

NPS

kvs

Δp

5bar

(Nm)

Δp

10bar

(Nm)

Δp

16bar

(Nm)

Δp

5bar

(Nm)

Δp

10bar

(Nm)

Δp

16bar

(Nm)

350

14

9500

490

638

736

628

755

863

400

16

12000

638

883

1030

834

1030

1170

500

20

19000

1128

1570

1864

1324

1864

2139

Application 1
For standard use without media flow

Application 2
For complicated media requirements, such as acids and dry service

Product advantages

Very maintenance friendly
easy and quick replacement of the seat due to the two-piece body, therefore low maintenance costs

Excellent control behaviour of the process flows without hysteresis
with firm, play-free disc/stem connection and centric valve disc

Valve design cavity-free
makes simple sterile cleaning possible and choice of body material independent from the medium

Long service life
seals tightly at full differential pressure even with very high switching cycles

Excellent bubble-tightness
Body lined completely with elastomer with the seat-ring as a multi-functional sealing element, easily exchangeable, maintenance-free, with long service life

Absolutely maintenance-free seal system
the bearing with O-ring prevents foreign substances from penetrating from the outside

Universal range of application
for almost all media, from use with acids to the sensitive food and pharmaceutical industrys

Economic and easy assembly of all actuator types
The standard top flange according to DIN/ISO 5211 makes it possible to mount all the common actuator types

Technical data

K 17 Lug type butterfly valve for installation between flanges
DIN EN 1092-1, PN 10/16, ANSI 150 lbs
Nominal sizes:
DN 350 – DN 500

Two-piece body
self-centering, one-piece disc/stem

Temperature range:
-30 °C to +200 °C
depending on the seat material

Control range:
10° -90° opening angle
15° - 70° linear characteristic

Bubble-tight
at full differential pressure, dead-end service up to a differential pressure of 10 bar, depending on the working temperature

Face-to-face dimension:
EN 558-1 line 20
DIN 3202-K1

Top flange:
DIN 3337 - ISO 5211

Materials

Body:

Material:

Code:

Stainless steel 1.4301/1.4308

63

Stainless steel 1.4571/1.4408

66

Ductile iron GGG 40.3

24

Cast steel GS-C25

44

   

Disc:

Material:

Code:

Alloy C

93

Alloy C 22

92

Bronze

13

E-CTFE-coated

78

Stainless steel 1.4581/1.4408

66

Stainless steel, polished

31

EPDM-coated

79

PTFE-lined

77

Ductile iron GGG 40

23

Titanium

94

   

Seat ring:

Material:

Code:

CSM

H

EPDM

E

EPDM white

Ew

FPM

V

MVQ (silicone)

S

NBR

B

PU (Polyurepan)

PU

 

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