Installation, Operating & Maintenance Instructions

Series 64, DN 63-400 (I.D. 21/2" - 16")

VAT Vakuumventile AG, CH-9469 Haag, Switzerland

Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com

219034EM

2013-08-27

6/19

2.2.2

Admissible forces

Forces from evacuating the system, from the weight of other components, and from baking can lead to deformation of the

valve body and to malfunction of the valve. The stress has to be relieved by suitable means, e.g. bellows sections. The

following forces are admissible:

DN (nom. I.D.)

Axial tensile or

compressive force «FA»

Bending moment «M»

mm

inch

N

lbf

Nm

lbf ft

63

2

1/

2

1960

440

78

58

100

4

2450

560

98

72

160

6

2940

660

147

108

200

8

2940

660

147

108

250

10

3430

770

196

145

320 / 350

12 / 14

3920

880

294

217

400

16

7840

1760

980

722

If a combination of both forces (FA and M) occurs, the values mentioned above are

invalid. Please contact VAT for more information.

F

A

M